internal RedlineLayer[] GetAvailableLayers(MgMapBase map)
{
var fsId = GetRegistryFeatureSource();
MgLayerCollection mapLayers = map.GetLayers();
List <RedlineLayer> layers = new List <RedlineLayer>();
MgFeatureReader reader = null;
try
{
reader = _featSvc.SelectFeatures(fsId, "Default:MarkupRegistry", null);
while (reader.ReadNext())
{
layers.Add(new RedlineLayer(reader.GetString("Name"),
reader.GetString("ResourceId"),
reader.GetString("LayerDefinition"),
reader.GetInt32("GeometryTypes"),
(RedlineStylizationType)reader.GetInt32("StyleType")));
}
}
finally
{
if (reader != null)
{
reader.Close();
}
}
return(layers.ToArray());
}
public static void ReleaseReader(MgPropertyCollection res, MgFeatureCommandCollection commands)
{
if (res == null)
{
return;
}
for (int i = 0; i < res.GetCount(); i++)
{
MgFeatureCommand cmd = commands.GetItem(i);
if (cmd is MgInsertFeatures)
{
MgFeatureProperty resProp = res.GetItem(i) as MgFeatureProperty;
if (resProp != null)
{
MgFeatureReader reader = resProp.GetValue() as MgFeatureReader;
if (reader == null)
{
return;
}
reader.Close();
}
}
}
}
internal void AddRedlineLayer(RedlineLayer layer, string fdoProvider)
{
var fsId = GetRegistryFeatureSource();
MgFeatureCommandCollection commands = new MgFeatureCommandCollection();
MgPropertyCollection insertVals = new MgPropertyCollection();
MgStringProperty regId = new MgStringProperty("ResourceId", layer.FeatureSource);
MgStringProperty ldfId = new MgStringProperty("LayerDefinition", layer.LayerDefinition);
MgStringProperty name = new MgStringProperty("Name", layer.Name);
MgStringProperty provider = new MgStringProperty("FdoProvider", fdoProvider);
MgInt32Property geomTypes = new MgInt32Property("GeometryTypes", layer.GeometryTypes);
MgInt32Property styleType = new MgInt32Property("StyleType", (int)layer.StyleType);
insertVals.Add(regId);
insertVals.Add(ldfId);
insertVals.Add(name);
insertVals.Add(provider);
insertVals.Add(geomTypes);
insertVals.Add(styleType);
MgInsertFeatures insert = new MgInsertFeatures("Default:MarkupRegistry", insertVals);
commands.Add(insert);
MgPropertyCollection result = _featSvc.UpdateFeatures(fsId, commands, false);
MgFeatureProperty insertResult = result.GetItem(0) as MgFeatureProperty;
if (insertResult != null)
{
MgFeatureReader fr = insertResult.GetValue();
fr.Close();
}
}
private IFeature[] GetFeatureArray(MgFeatureReader reader, string name)
{
MgFeatureReader nr = reader.GetFeatureObject(name);
var lr = new LocalNativeFeatureReader(nr);
List <IFeature> features = new List <IFeature>(lr);
return(features.ToArray());
}
public LocalNativeFeatureReader(MgFeatureReader reader)
{
_reader = reader;
_mgReader = new FixedWKTReader();
_agfRw = new MgAgfReaderWriter();
_wktRw = new MgWktReaderWriter();
base.ClassDefinition = Utility.ConvertClassDefinition(reader.GetClassDefinition());
base.FieldCount = reader.GetPropertyCount();
}
private void btnSelectDistrict1_Click(object sender, EventArgs e)
{
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
MgLayerBase districts = layers.GetItem("Districts");
MgLayerBase parcels = layers.GetItem("Parcels");
//Query the geometry of district 1
MgFeatureQueryOptions districtQuery = new MgFeatureQueryOptions();
districtQuery.SetFilter("Autogenerated_SDF_ID = 1");
MgFeatureReader reader = districts.SelectFeatures(districtQuery);
MgGeometry districtGeom = null;
MgAgfReaderWriter agfRw = new MgAgfReaderWriter();
try
{
reader.ReadNext();
MgByteReader geomAgf = reader.GetGeometry(districts.GetFeatureGeometryName());
districtGeom = agfRw.Read(geomAgf);
}
finally
{
reader.Close();
}
//Now use this geometry as the basis of our 2nd query
MgFeatureQueryOptions parcelQuery = new MgFeatureQueryOptions();
parcelQuery.SetFilter("RNAME LIKE 'SCHMITT%'");
parcelQuery.SetSpatialFilter(parcels.GetFeatureGeometryName(), districtGeom, MgFeatureSpatialOperations.Inside);
//Select the features
reader = parcels.SelectFeatures(parcelQuery);
MgSelectionBase selection = _viewer.GetSelection();
try
{
selection.FromXml(""); //Clear existing selection data
selection.AddFeatures(parcels, reader, 0);
}
finally
{
reader.Close();
}
//Because we manipulated the active selection outside the viewer
//We need to call UpdateSelection() to instruct the viewer to
//re-render the active selection. The "true" parameter instructs
//the viewer to raise the SelectionChanged event as well, so that
//subscribers like the Property Pane get updated as well.
_viewer.UpdateSelection(true);
_viewer.RefreshMap();
}
public LocalNativeFeatureReader(MgFeatureReader reader)
{
_reader = reader;
_mgReader = new FixedWKTReader();
_agfRw = new MgAgfReaderWriter();
_wktRw = new MgWktReaderWriter();
base.ClassDefinition = Utility.ConvertClassDefinition(reader.GetClassDefinition());
base.FieldCount = reader.GetPropertyCount();
}
/// <summary>Получает строковое представление поля _property_name из текущей записи _reader</summary>
/// <param name="_reader"></param>
/// <param name="_property_name"></param>
/// <returns></returns>
internal static string PropertyValueToString(MgFeatureReader _reader, string _property_name)
{
MgPropertyDefinitionCollection prop_defs = _reader.GetClassDefinition().GetProperties();
if (String.IsNullOrEmpty(_property_name) || !prop_defs.Contains(_property_name))
{
return(null);
}
int property_type = _reader.GetPropertyType(_property_name);
if (_reader.IsNull(_property_name))
{
return(null);
}
else if (property_type == MgPropertyType.Boolean)
{
return(_reader.GetBoolean(_property_name).ToString());
}
else if (property_type == MgPropertyType.Byte)
{
return(_reader.GetByte(_property_name).ToString());
}
else if (property_type == MgPropertyType.DateTime)
{
return(_reader.GetDateTime(_property_name).ToString());
}
else if (property_type == MgPropertyType.Double)
{
return(_reader.GetDouble(_property_name).ToString());
}
else if (property_type == MgPropertyType.Int16)
{
return(_reader.GetInt16(_property_name).ToString());
}
else if (property_type == MgPropertyType.Int32)
{
return(_reader.GetInt32(_property_name).ToString());
}
else if (property_type == MgPropertyType.Int64)
{
return(_reader.GetInt64(_property_name).ToString());
}
else if (property_type == MgPropertyType.Single)
{
return(_reader.GetSingle(_property_name).ToString());
}
else if (property_type == MgPropertyType.String)
{
return(_reader.GetString(_property_name));
}
else
{
return(null);
}
} //method
private void btnQueryDistrict1_Click(object sender, EventArgs e)
{
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
MgLayerBase districts = layers.GetItem("Districts");
MgLayerBase parcels = layers.GetItem("Parcels");
//Query the geometry of district 1
MgFeatureQueryOptions districtQuery = new MgFeatureQueryOptions();
districtQuery.SetFilter("Autogenerated_SDF_ID = 1");
MgFeatureReader reader = districts.SelectFeatures(districtQuery);
MgGeometry districtGeom = null;
MgAgfReaderWriter agfRw = new MgAgfReaderWriter();
try
{
reader.ReadNext();
MgByteReader geomAgf = reader.GetGeometry(districts.GetFeatureGeometryName());
districtGeom = agfRw.Read(geomAgf);
}
finally
{
reader.Close();
}
//Now use this geometry as the basis of our 2nd query
MgFeatureQueryOptions parcelQuery = new MgFeatureQueryOptions();
parcelQuery.SetFilter("RNAME LIKE 'SCHMITT%'");
parcelQuery.SetSpatialFilter(parcels.GetFeatureGeometryName(), districtGeom, MgFeatureSpatialOperations.Inside);
//Select the features
reader = parcels.SelectFeatures(parcelQuery);
List <string> results = new List <string>();
try
{
while (reader.ReadNext())
{
if (!reader.IsNull("RPROPAD"))
{
results.Add(reader.GetString("RPROPAD"));
}
}
}
finally
{
reader.Close();
}
new ParcelQueryResultWindow(results).ShowDialog();
}
/// <summary>
/// Установка зумирования и активной выборки (запуск через командную строку - отсюда название)
/// </summary>
/// <param name="sel_base">выборка, которую следует отобразить</param>
internal static void ThroughAssZoomAndSelection(MgSelectionBase sel_base)
{
internal_saved_selection = AcMapFeatureEntityService.AddFeaturesToSelectionSet(null, sel_base); // преобразование в SelectionSet и обратно,
sel_base = AcMapFeatureEntityService.GetSelection(internal_saved_selection); // иначе дает сбой метод GetSelectedFeatures()
MgEnvelope extents = new MgEnvelope();
MgReadOnlyLayerCollection layers = sel_base.GetLayers();
foreach (MgLayerBase layer in layers)
{
MgFeatureReader ftr_reader = sel_base.GetSelectedFeatures(layer, layer.FeatureClassName, false);
string geom_prop_name = ftr_reader.GetClassDefinition().DefaultGeometryPropertyName;
while (ftr_reader.ReadNext())
{
MgByteReader byte_reader = ftr_reader.GetGeometry(geom_prop_name);
MgAgfReaderWriter agf_reader_writer = new MgAgfReaderWriter();
MgGeometry curr_geom = agf_reader_writer.Read(byte_reader);
extents.ExpandToInclude(curr_geom.Envelope());
}
}
// зумирование и вызов функции выбора через командную строку
Core.no_handle_selection = true; // чтобы изменение выборки не обрабатывалось
string zoom_str;
if ((extents.Width == 0) && (extents.Width == extents.Height))
{
zoom_str = "'_zoom _c "
+ extents.LowerLeftCoordinate.X.ToString() + "," + extents.LowerLeftCoordinate.Y.ToString() + " ";
}
else
{
zoom_str = "'_zoom _w "
+ (extents.LowerLeftCoordinate.X - extents.Width / 2).ToString()
+ ","
+ (extents.LowerLeftCoordinate.Y - extents.Height / 2).ToString()
+ " "
+ (extents.UpperRightCoordinate.X + extents.Width / 2).ToString()
+ ","
+ (extents.UpperRightCoordinate.Y + extents.Height / 2).ToString();
}
Core.SendStringToExecute(zoom_str + "\n"
+ "ThroughAssZoomAndSelectionHelperFunction\n"
, true, false, false);
}
public override void Close()
{
if (_reader != null)
{
try
{
_reader.Close();
_reader.Dispose();
}
catch (MgException ex)
{
ex.Dispose();
}
_reader = null;
}
}
public override void Close()
{
if (_reader != null)
{
try
{
_reader.Close();
_reader.Dispose();
}
catch (MgException ex)
{
ex.Dispose();
}
_reader = null;
}
}
public override TestResult Execute(int paramSetId)
{
try
{
NameValueCollection param = new NameValueCollection();
_unitTestVm.ReadParameterValue(paramSetId, "RESOURCEID", param);
_unitTestVm.ReadParameterValue(paramSetId, "CLASSNAME", param);
_unitTestVm.ReadParameterValue(paramSetId, "PROPERTIES", param);
_unitTestVm.ReadParameterValue(paramSetId, "FILTER", param);
MgResourceIdentifier resId = null;
if (param["RESOURCEID"] != null)
{
resId = new MgResourceIdentifier(param["RESOURCEID"]);
}
MgFeatureQueryOptions query = new MgFeatureQueryOptions();
//TODO: Set query options
if (param["FILTER"] != null)
{
query.SetFilter(param["FILTER"]);
}
//PROPERTIES should be stored in the database as comma separated string without spaces
if (param["PROPERTIES"] != null)
{
string [] props = param["PROPERTIES"].Split(',');
foreach (var p in props)
{
query.AddFeatureProperty(p);
}
}
MgFeatureReader reader = _featureService.SelectFeatures(resId, param["CLASSNAME"], query);
MgByteReader byteReader = reader.ToXml();
reader.Close();
return(TestResult.FromByteReader(byteReader));
}
catch (MgException ex)
{
return(TestResult.FromMgException(ex));
}
catch (Exception ex)
{
return(TestResult.FromException(ex));
}
}
private void mgMapViewer1_SelectionChanged(object sender, EventArgs e)
{
MgSelectionBase selection = mgMapViewer1.GetSelection();
MgReadOnlyLayerCollection layers = selection.GetLayers();
if (layers != null)
{
for (int i = 0; i < layers.GetCount(); i++)
{
MgLayerBase layer = layers.GetItem(i);
if (layer.Name == "Parcels") //The selected layer is parcels
{
//Check that we only have one selected object
int count = selection.GetSelectedFeaturesCount(layer, layer.FeatureClassName);
if (count == 1)
{
MgFeatureReader reader = null;
try
{
reader = selection.GetSelectedFeatures(layer, layer.FeatureClassName, false);
if (reader.ReadNext())
{
//Address is in the RPROPAD property
if (reader.IsNull("RPROPAD"))
{
MessageBox.Show("Selected parcel has no address");
}
else
{
MessageBox.Show("Address: " + reader.GetString("RPROPAD"));
}
}
}
finally //Must close all readers, otherwise connections will leak
{
reader.Close();
}
}
else
{
MessageBox.Show("Please select only one parcel");
}
break;
}
}
}
}
public ActionResult SelectFeature(SelectInputModel input)
{
MgSiteConnection conn = CreateConnection(input);
MgMap map = new MgMap(conn);
map.Open(input.MapName);
MgLayerCollection layers = map.GetLayers();
int lidx = layers.IndexOf("Parcels");
if (lidx < 0)
{
throw new Exception("Layer not found on map: Parcels");
}
MgLayerBase layer = layers[lidx];
MgClassDefinition clsDef = layer.GetClassDefinition();
MgPropertyDefinitionCollection props = clsDef.GetProperties();
MgPropertyDefinition idProp = props[0];
string idPropName = idProp.Name;
MgFeatureQueryOptions query = new MgFeatureQueryOptions();
query.SetFilter(idPropName + " = " + input.id);
MgFeatureReader reader = layer.SelectFeatures(query);
MgSelection selection = new MgSelection(map, "");
MgResourceService resSvc = (MgResourceService)conn.CreateService(MgServiceType.ResourceService);
string result = "";
try
{
selection.Open(resSvc, input.MapName);
selection.FromXml(""); //Clear existing
selection.AddFeatures(layer, reader, 0);
result = selection.ToXml();
}
finally
{
reader.Close();
}
return(Content(result, MgMimeType.Xml));
}
private void OnPointDrawn(double x, double y)
{
if (_pointLayer == null) //Our point layer doesn't exist
{
CreateRedlineLayer();
}
//Now insert our point. This code should look familiar
//to you, setting up the MgPropertyCollection for insertion
MgPropertyCollection props = new MgPropertyCollection();
MgWktReaderWriter wktRw = new MgWktReaderWriter();
MgAgfReaderWriter agfRw = new MgAgfReaderWriter();
MgGeometry geom = wktRw.Read("POINT (" + x + " " + y + ")");
MgByteReader agf = agfRw.Write(geom);
MgGeometryProperty geomProp = new MgGeometryProperty("Geometry", agf);
props.Add(geomProp);
//Here's where we differ from the official MapGuide API
//instead of a monolithic UpdateFeatures() that tries to
//do everything, we have individual InsertFeatures/DeleteFeatures/UpdateFeatures
//methods. So here's the mg-desktop way
MgFeatureReader result = _pointLayer.InsertFeatures(props);
result.Close();
//Or if you have have access to the MgdLayer instance
/*
* MgResourceIdentifier fsId = new MgResourceIdentifier(_pointLayer.GetFeatureSourceId());
* MgServiceFactory factory = new MgServiceFactory();
* MgdFeatureService featSvc = (MgdFeatureService)factory.CreateService(MgServiceType.FeatureService);
* MgFeatureReader fr = featSvc.InsertFeatures(fsId, "Default:Redline", props);
* fr.Close();
*/
//Now refresh to see your newly drawn point
mgMapViewer1.RefreshMap();
}
/// <summary>Подстановка значений полей из текущей записи _reader в строке _in_str по шаблону "[имя поля]"</summary>
/// <param name="_reader"></param>
/// <param name="_in_str"></param>
/// <returns></returns>
internal static string ResolveLinkStringByValueFromReader(MgFeatureReader _reader, string _in_str)
{
if (String.IsNullOrEmpty(_in_str))
{
return(null);
}
string replace_str;
MgPropertyDefinitionCollection prop_defs = _reader.GetClassDefinition().GetProperties();
foreach (MgPropertyDefinition curr_prop in prop_defs)
{
replace_str = "[" + curr_prop.Name + "]";
if (_in_str.Contains(replace_str))
{
_in_str = _in_str.Replace(replace_str, PropertyValueToString(_reader, curr_prop.Name));
}
}
return(_in_str);
}
private void button1_Click(object sender, EventArgs e)
{
try
{
var fact = new MgdServiceFactory();
MgFeatureService featSvc = (MgdFeatureService)fact.CreateService(MgServiceType.FeatureService);
MgFeatureQueryOptions query = new MgFeatureQueryOptions();
string[] propNames = txtProps.Text.Split(',');
foreach (var p in propNames)
{
if (string.IsNullOrEmpty(p))
{
continue;
}
query.AddFeatureProperty(p);
}
foreach (Pair p in lstComputed.Items)
{
query.AddComputedProperty(p.Name, p.Expr);
}
if (!string.IsNullOrEmpty(txtFilter.Text.Trim()))
{
query.SetFilter(txtFilter.Text.Trim());
}
MgResourceIdentifier fsId = new MgResourceIdentifier(txtFeatureSource.Text);
MgFeatureReader reader = featSvc.SelectFeatures(fsId, txtClass.Text, query);
new ReaderResponseDialog(reader).ShowDialog();
}
catch (MgException ex)
{
MessageBox.Show(ex.ToString(), "Error from MapGuide");
}
}
public void LoadResults(MgLayerBase layer, MgFeatureQueryOptions query)
{
MgClassDefinition clsDef = layer.GetClassDefinition();
MgPropertyDefinitionCollection idProps = clsDef.GetIdentityProperties();
MgPropertyDefinition idProp = idProps[0];
string idPropName = idProp.Name;
string geomName = layer.FeatureGeometryName;
MgFeatureReader reader = layer.SelectFeatures(query);
MgAgfReaderWriter agfRw = new MgAgfReaderWriter();
try
{
while (reader.ReadNext())
{
var res = new ParcelFeatureModel();
res.ID = reader.GetInt32(idPropName);
res.Owner = reader.IsNull("RNAME") ? "(unknown)" : reader.GetString("RNAME");
res.Address = reader.IsNull("RPROPAD") ? "(unknown)" : reader.GetString("RPROPAD");
if (!reader.IsNull(geomName))
{
MgByteReader agf = reader.GetGeometry(geomName);
MgGeometry geom = agfRw.Read(agf);
MgPoint center = geom.Centroid;
MgCoordinate coord = center.Coordinate;
res.X = coord.X;
res.Y = coord.Y;
}
this.Results.Add(res);
}
}
finally
{
reader.Close();
}
}
public IEnumerable <RedlineObject> GetAllFeatures()
{
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
MgLayerBase redlineLayer = layers.GetItem(_layer.SystemName);
MgResourceIdentifier resId = new MgResourceIdentifier(redlineLayer.GetFeatureSourceId());
MgFeatureReader reader = null;
try
{
reader = _featSvc.SelectFeatures(resId, RedlineSchemaFactory.CLASS_NAME, null);
//HACK: Another leaky abstraction. SHP will always choose FeatId, so once again
//use the class definition to determine the identity property name
MgClassDefinition cls = reader.GetClassDefinition();
MgPropertyDefinitionCollection idProps = cls.GetIdentityProperties();
MgPropertyDefinition keyProp = idProps.GetItem(0);
string idName = keyProp.GetName();
while (reader.ReadNext())
{
int id = reader.GetInt32(idName);
string text = reader.IsNull(RedlineSchemaFactory.TEXT_NAME) ? string.Empty : reader.GetString(RedlineSchemaFactory.TEXT_NAME);
yield return(new RedlineObject(id, text));
}
}
finally
{
if (reader != null)
{
reader.Close();
}
}
}
} //method
internal static void SelectionToDataGridView(MgSelectionBase _selection_base)
{
palette_window.links_control.is_suspended = true; // информируем о заморозке
palette_window.links_control.SuspendLayout(); // замораживаем логику
palette_window.links_control.data_grid.Enabled = false;
palette_window.links_control.data_grid.SuspendLayout(); // замораживаем логику DataGridView
palette_window.links_control.layers_list.Enabled = false;
palette_window.links_control.progressbar_in_status.Visible = true; // включение ProgressBar
palette_window.links_control.status_strip.Refresh();
MgReadOnlyLayerCollection layers = _selection_base.GetLayers();
int curr_features_count = 0, features_count = 0;
// подсчет количества выбранных объектов
foreach (MgLayerBase layer in layers)
{
features_count += _selection_base.GetSelectedFeaturesCount(layer, layer.FeatureClassName);
}
if (features_count == 0)
{
return;
}
// заполнение списка слоев
palette_window.links_control.layers_list.Items.Clear(); // очищаем список
if (layers.Count > 1)
{
palette_window.links_control.layers_list.Items.Add("(Все выбранные)");
}
foreach (MgLayerBase layer in layers)
{
palette_window.links_control.layers_list.Items.Add(layer.Name);
}
palette_window.links_control.layers_list.SelectedIndex = 0;
// заполнение DataGridView
palette_window.links_control.data_grid.Rows.Clear(); // очищаем строки
foreach (MgLayerBase layer in layers)
{
int curr_ftr_class_idx = config.IndexOf(layer.FeatureClassName);
if (curr_ftr_class_idx == -1)
{
curr_features_count += _selection_base.GetSelectedFeaturesCount(layer, layer.FeatureClassName);;
palette_window.links_control.UpdateStatusRowCounterLabelAndProgressBar(curr_features_count, features_count);
continue;
}
FeatureClassLinkInfo curr_link_info = config.link_info_array[curr_ftr_class_idx];
MgFeatureReader ftr_rdr = _selection_base.GetSelectedFeatures(layer, layer.FeatureClassName, false);
MgPropertyDefinitionCollection identity_prop_defs = ftr_rdr.GetClassDefinition().GetIdentityProperties(); // получаем набор идентификационных полей
while (ftr_rdr.ReadNext())
{
curr_features_count++;
DataGridViewRow link_row = new DataGridViewRow(); // новая строка
DataGridViewLinkCell link_cell; // ячейка
// формирование URL
link_cell = new DataGridViewLinkCell();
string title_str = ResolveLinkStringByValueFromReader(ftr_rdr, curr_link_info.LinkTitle);
link_cell.Value = String.IsNullOrEmpty(title_str)? "<Null>": title_str;
link_cell.ToolTipText =
curr_link_info.LinkCommandPath
+ command_splitter
+ ResolveLinkStringByValueFromReader(ftr_rdr, curr_link_info.LinkURL);
link_row.Cells.Add(link_cell); // вставка ячейки
// формирование ID
MgPropertyCollection curr_identity_props = GetPropertiesFromReader(ftr_rdr, identity_prop_defs);
SelectedFeatureInfo sel_info = new SelectedFeatureInfo(layer, curr_identity_props);
link_cell = new DataGridViewLinkCell();
link_cell.Value = sel_info;
link_row.Cells.Add(link_cell); // вставка ячейки
// добавлени строки в DataGridView
palette_window.links_control.data_grid.Rows.Add(link_row);
// обновление ProgressBar'а и счетчика строк
palette_window.links_control.UpdateStatusRowCounterLabelAndProgressBar(curr_features_count, features_count);
} /// while (ftr_rdr.ReadNext())
} /// foreach (MgLayerBase layer in layers)
palette_window.links_control.URL.SortMode = DataGridViewColumnSortMode.NotSortable; // сброс сортировки
palette_window.links_control.URL.SortMode = DataGridViewColumnSortMode.Automatic; // на исходную автоматическую
palette_window.links_control.data_grid.SelectAll(); // выбираем все строки
palette_window.links_control.progressbar_in_status.Visible = false;
palette_window.links_control.layers_list.Enabled = true;
palette_window.links_control.data_grid.Enabled = true;
palette_window.links_control.data_grid.ResumeLayout(); // размораживаем логику DataGridView
palette_window.links_control.ResumeLayout(); // размораживаем логику
palette_window.links_control.is_suspended = false;
palette_window.links_control.UpdateStatusRowCounterLabel(); // обновляем строку статуса
}
private void btnCreate_Click(object sender, EventArgs e)
{
btnCreate.Enabled = false;
try
{
var layerName = txtBufferLayer.Text.Trim();
if (string.IsNullOrEmpty(layerName))
{
MessageBox.Show(Strings.MsgEnterNameForLayer);
return;
}
if (lstLayers.SelectedItems.Count == 0)
{
MessageBox.Show(Strings.MsgIncludeLayersToBuffer);
return;
}
var map = _viewer.GetMap();
var layers = map.GetLayers();
var provider = _viewer.GetProvider();
//From here, it's the same logic as buffer.aspx in .net MapGuide AJAX viewer
MgResourceIdentifier fsId = new MgResourceIdentifier("Session:" + _sessionId + "//" + txtBufferLayer.Text + "_Buffer.FeatureSource"); //NOXLATE
MgResourceIdentifier ldfId = new MgResourceIdentifier("Session:" + _sessionId + "//" + txtBufferLayer.Text + "_Buffer.LayerDefinition"); //NOXLATE
MgLayerBase layer = Util.FindLayer(layers, txtBufferLayer.Text);
string[] layerNames = GetLayerNames();
double distance = Convert.ToDouble(numBufferDistance.Value);
MeasurementUnit bUnits = (MeasurementUnit)cmbUnits.SelectedItem;
switch (bUnits)
{
case MeasurementUnit.Feet:
distance *= 0.30480;
break;
case MeasurementUnit.Kilometers:
distance *= 1000;
break;
case MeasurementUnit.Miles:
distance *= 1609.35;
break;
}
String srsDefMap = Util.GetMapSrs(map);
MgCoordinateSystem srsMap = provider.GetMapCoordinateSystem();
string mapSrsUnits = "";
bool arbitraryMapSrs = (srsMap.GetType() == MgCoordinateSystemType.Arbitrary);
if (arbitraryMapSrs)
{
mapSrsUnits = srsMap.GetUnits();
}
String xtrans = String.Format("{0:x2}", ((int)(255 * Convert.ToInt32(numFillTransparency.Value) / 100))); //NOXLATE
var lineColor = Util.ToHtmlColor(pnlBorderColor.BackColor);
var foreColor = Util.ToHtmlColor(pnlFillColor.BackColor);
var backColor = Util.ToHtmlColor(pnlFillBackColor.BackColor);
String layerTempl = string.Format(Properties.Resources.AreaLayerDef,
fsId.ToString(),
"BufferSchema:Buffer", //NOXLATE
"GEOM", //NOXLATE
cmbFillPattern.SelectedItem,
xtrans + foreColor,
((0 != 1 /*transparent*/) ? "ff" : "00") + backColor, //NOXLATE
cmbBorderPattern.SelectedItem,
numLineThickness.Value.ToString(NumberFormatInfo.InvariantInfo),
lineColor
);
byte[] bytes = Encoding.UTF8.GetBytes(layerTempl);
MgByteSource src = new MgByteSource(bytes, bytes.Length);
MgByteReader layerDefContent = src.GetReader();
_resSvc.SetResource(ldfId, layerDefContent, null);
bool newBuffer = false;
if (layer == null)
{
newBuffer = true;
//Targetting a new layer. create a data source for it
//
MgClassDefinition classDef = new MgClassDefinition();
classDef.SetName("Buffer"); //NOXLATE
classDef.SetDescription("Feature class for buffer layer"); //NOXLATE
classDef.SetDefaultGeometryPropertyName("GEOM"); //NOXLATE
//Set KEY property
MgDataPropertyDefinition prop = new MgDataPropertyDefinition("KEY"); //NOXLATE
prop.SetDataType(MgPropertyType.Int32);
prop.SetAutoGeneration(true);
prop.SetReadOnly(true);
classDef.GetIdentityProperties().Add(prop);
classDef.GetProperties().Add(prop);
//Set ID property. Hold this segment ID
prop = new MgDataPropertyDefinition("ID"); //NOXLATE
prop.SetDataType(MgPropertyType.Int32);
classDef.GetProperties().Add(prop);
//Set geometry property
MgGeometricPropertyDefinition geomProp = new MgGeometricPropertyDefinition("GEOM"); //NOXLATE
//prop.SetGeometryTypes(MgFeatureGeometricType.mfgtSurface); //TODO use the constant when exposed
geomProp.SetGeometryTypes(4);
classDef.GetProperties().Add(geomProp);
//Create the schema
MgFeatureSchema schema = new MgFeatureSchema("BufferSchema", "Temporary buffer schema"); //NOXLATE
schema.GetClasses().Add(classDef);
//finally, creation of the feature source
MgFileFeatureSourceParams sdfParams = new MgFileFeatureSourceParams("OSGeo.SDF", "LatLong", map.GetMapSRS(), schema); //NOXLATE
_featSvc.CreateFeatureSource(fsId, sdfParams);
//Add layer to map
layer = provider.CreateLayer(ldfId);
layer.SetName(txtBufferLayer.Text);
layer.SetLegendLabel(txtBufferLayer.Text);
layer.SetDisplayInLegend(true);
layer.SetSelectable(true);
layers.Insert(0, layer);
}
else
{
//data source already exist. clear its content
//
Util.ClearDataSource(_featSvc, fsId, "BufferSchema:Buffer"); //NOXLATE
}
var sel = _viewer.GetSelection();
var selLayers = sel.GetLayers();
MgAgfReaderWriter agfRW = new MgAgfReaderWriter();
MgGeometryCollection bufferGeometries = new MgGeometryCollection();
MgGeometry geomBuffer;
MgFeatureCommandCollection commands = new MgFeatureCommandCollection();
int featId = 0;
MgBatchPropertyCollection propCollection = new MgBatchPropertyCollection();
int excludedLayers = 0;
MgCoordinateSystem srsDs = null;
MgGeometryCollection inputGeometries = new MgGeometryCollection();
int bufferFeatures = 0;
for (int li = 0; li < selLayers.GetCount(); li++)
{
MgLayerBase selLayer = selLayers.GetItem(li);
bool inputLayer = false;
String selLayerName = selLayer.GetName();
for (int il = 0; il < layerNames.Length; il++)
{
if (layerNames[il].Equals(selLayerName))
{
inputLayer = true;
break;
}
}
if (inputLayer == false)
{
continue;
}
// get the data source SRS
//
MgResourceIdentifier featSourceId = new MgResourceIdentifier(selLayer.GetFeatureSourceId());
MgSpatialContextReader ctxs = _featSvc.GetSpatialContexts(featSourceId, false);
String srsDefDs = string.Empty;
if (ctxs != null && ctxs.ReadNext())
{
srsDefDs = ctxs.GetCoordinateSystemWkt();
}
if (srsDefDs == null || srsDefDs.Length == 0)
{
excludedLayers++;
continue;
}
var srsFactory = new MgCoordinateSystemFactory();
srsDs = srsFactory.Create(srsDefDs);
bool arbitraryDsSrs = (srsDs.GetType() == MgCoordinateSystemType.Arbitrary);
String dsSrsUnits = string.Empty;
if (arbitraryDsSrs)
{
dsSrsUnits = srsDs.GetUnits();
}
// exclude layer if:
// the map is non-arbitrary and the layer is arbitrary or vice-versa
// or
// layer and map are both arbitrary but have different units
//
if ((arbitraryDsSrs != arbitraryMapSrs) || (arbitraryDsSrs && (dsSrsUnits != mapSrsUnits)))
{
excludedLayers++;
continue;
}
// calculate distance in the data source SRS units
//
double dist = srsDs.ConvertMetersToCoordinateSystemUnits(distance);
// calculate great circle unless data source srs is arbitrary
MgCoordinateSystemMeasure measure;
if (!arbitraryDsSrs)
{
measure = srsDs.GetMeasure();
}
else
{
measure = null;
}
// create a SRS transformer if necessary
MgCoordinateSystemTransform srsXform;
if (!srsDefDs.Equals(srsDefMap))
{
srsXform = srsFactory.GetTransform(srsDs, srsMap);
}
else
{
srsXform = null;
}
String featureClassName = selLayer.GetFeatureClassName();
String filter = sel.GenerateFilter(selLayer, featureClassName);
if (filter == null || filter.Length == 0)
{
continue;
}
MgFeatureQueryOptions query = new MgFeatureQueryOptions();
query.SetFilter(filter);
MgResourceIdentifier featureSource = new MgResourceIdentifier(selLayer.GetFeatureSourceId());
MgFeatureReader features = _featSvc.SelectFeatures(featureSource, featureClassName, query);
if (features.ReadNext())
{
MgClassDefinition classDef = features.GetClassDefinition();
String geomPropName = classDef.GetDefaultGeometryPropertyName();
do
{
MgByteReader geomReader = features.GetGeometry(geomPropName);
MgGeometry geom = agfRW.Read(geomReader);
if (!chkMergeBuffers.Checked)
{
geomBuffer = geom.Buffer(dist, measure);
if (geomBuffer != null)
{
if (srsXform != null)
{
geomBuffer = (MgGeometry)geomBuffer.Transform(srsXform);
}
Util.AddFeatureToCollection(propCollection, agfRW, featId++, geomBuffer);
bufferFeatures++;
}
}
else
{
if (srsXform != null)
{
geom = (MgGeometry)geom.Transform(srsXform);
}
inputGeometries.Add(geom);
}
}while (features.ReadNext());
features.Close();
}
}
if (chkMergeBuffers.Checked)
{
if (inputGeometries.GetCount() > 0)
{
double dist = srsMap.ConvertMetersToCoordinateSystemUnits(distance);
MgCoordinateSystemMeasure measure;
if (!arbitraryMapSrs)
{
measure = srsMap.GetMeasure();
}
else
{
measure = null;
}
MgGeometryFactory geomFactory = new MgGeometryFactory();
geomBuffer = geomFactory.CreateMultiGeometry(inputGeometries).Buffer(dist, measure);
if (geomBuffer != null)
{
Util.AddFeatureToCollection(propCollection, agfRW, featId, geomBuffer);
bufferFeatures = 1;
}
}
}
if (propCollection.GetCount() > 0)
{
commands.Add(new MgInsertFeatures("BufferSchema:Buffer", propCollection)); //NOXLATE
//Insert the features in the temporary data source
//
Util.ReleaseReader(_featSvc.UpdateFeatures(fsId, commands, false), commands);
}
// Save the new map state
//
layer.ForceRefresh();
_viewer.RefreshMap();
//build report message
if (newBuffer)
{
MessageBox.Show(string.Format(Strings.MsgBufferLayerCreated, txtBufferLayer.Text));
}
else
{
MessageBox.Show(string.Format(Strings.MsgBufferLayerUpdated, txtBufferLayer.Text));
}
}
finally
{
btnCreate.Enabled = true;
}
}
/// <summary>Получает набор свойств MgPropertyCollection из текущей записи _reader в соответствии со списком _listed_prop_defs</summary>
/// <param name="_reader"></param>
/// <param name="_listed_prop_defs"></param>
/// <returns></returns>
internal static MgPropertyCollection GetPropertiesFromReader(MgFeatureReader _reader, MgPropertyDefinitionCollection _listed_prop_defs)
{
MgPropertyCollection result_props = new MgPropertyCollection();
MgPropertyDefinitionCollection reader_prop_defs = _reader.GetClassDefinition().GetProperties();
foreach (MgPropertyDefinition curr_prop_def in _listed_prop_defs)
{
if (!reader_prop_defs.Contains(curr_prop_def.Name) || _reader.IsNull(curr_prop_def.Name))
{
continue;
}
int property_type = _reader.GetPropertyType(curr_prop_def.Name);
if (property_type == MgPropertyType.Blob)
{
result_props.Add(
new MgBlobProperty(curr_prop_def.Name, _reader.GetBLOB(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Boolean)
{
result_props.Add(
new MgBooleanProperty(curr_prop_def.Name, _reader.GetBoolean(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Byte)
{
result_props.Add(
new MgByteProperty(curr_prop_def.Name, _reader.GetByte(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Clob)
{
result_props.Add(
new MgClobProperty(curr_prop_def.Name, _reader.GetCLOB(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.DateTime)
{
result_props.Add(
new MgDateTimeProperty(curr_prop_def.Name, _reader.GetDateTime(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Double)
{
result_props.Add(
new MgDoubleProperty(curr_prop_def.Name, _reader.GetDouble(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Feature)
{
result_props.Add(
new MgFeatureProperty(curr_prop_def.Name, _reader.GetFeatureObject(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Geometry)
{
result_props.Add(
new MgGeometryProperty(curr_prop_def.Name, _reader.GetGeometry(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Int16)
{
result_props.Add(
new MgInt16Property(curr_prop_def.Name, _reader.GetInt16(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Int32)
{
result_props.Add(
new MgInt32Property(curr_prop_def.Name, _reader.GetInt32(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Int64)
{
result_props.Add(
new MgInt64Property(curr_prop_def.Name, _reader.GetInt64(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Raster)
{
result_props.Add(
new MgRasterProperty(curr_prop_def.Name, _reader.GetRaster(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Single)
{
result_props.Add(
new MgSingleProperty(curr_prop_def.Name, _reader.GetSingle(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.String)
{
result_props.Add(
new MgStringProperty(curr_prop_def.Name, _reader.GetString(curr_prop_def.Name))
);
}
} //foreach
return(result_props);
}
private void btnCreatePointsOfInterest_Click(object sender, EventArgs e)
{
string layerName = "Points";
string legendLabel = "Points of Interest";
string groupName = "Analysis";
MgMapViewerProvider provider = _viewer.GetProvider();
MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService);
//We use MgdFeatureService instead of MgFeatureService as this sample demonstrates APIs unique to mg-desktop
MgdFeatureService featureService = (MgdFeatureService)provider.CreateService(MgServiceType.FeatureService);
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
MgLayerGroupCollection groups = map.GetLayerGroups();
//NOTE: mg-desktop has no formal concept of a session repository, but we still
//support session-based resources as a form of temporary resource (for the duration
//of the application). Session ids in mg-desktop can be any arbitrary string
string sessionId = Guid.NewGuid().ToString();
if (layers.IndexOf(layerName) >= 0)
{
MessageBox.Show("Layer (" + layerName + ") already created");
return;
}
//---------------------------------------------------//
// Create a feature source with point data.
// (The Sheboygan sample data does not contain such data,
// so we"ll create it.)
// Create a feature class definition for the new feature source
MgClassDefinition classDefinition = new MgClassDefinition();
classDefinition.SetName("Points");
classDefinition.SetDescription("Feature class with point data.");
classDefinition.SetDefaultGeometryPropertyName("GEOM");
MgPropertyDefinitionCollection idProps = classDefinition.GetIdentityProperties();
MgPropertyDefinitionCollection clsProps = classDefinition.GetProperties();
// Create an identify property
MgDataPropertyDefinition identityProperty = new MgDataPropertyDefinition("KEY");
identityProperty.SetDataType(MgPropertyType.Int32);
identityProperty.SetAutoGeneration(true);
identityProperty.SetReadOnly(true);
// Add the identity property to the class definition
clsProps.Add(identityProperty);
idProps.Add(identityProperty);
// Create a name property
MgDataPropertyDefinition nameProperty = new MgDataPropertyDefinition("NAME");
nameProperty.SetDataType(MgPropertyType.String);
// Add the name property to the class definition
clsProps.Add(nameProperty);
// Create a geometry property
MgGeometricPropertyDefinition geometryProperty = new MgGeometricPropertyDefinition("GEOM");
geometryProperty.SetGeometryTypes(MgFeatureGeometricType.Point);
// Add the geometry property to the class definition
clsProps.Add(geometryProperty);
// Create a feature schema
MgFeatureSchema featureSchema = new MgFeatureSchema("PointSchema", "Point schema");
MgClassDefinitionCollection classes = featureSchema.GetClasses();
// Add the feature schema to the class definition
classes.Add(classDefinition);
// Create the feature source
String featureSourceName = "Library://Samples/DevGuide/Data/points.FeatureSource";
MgResourceIdentifier resourceIdentifier = new MgResourceIdentifier(featureSourceName);
//wkt = "LOCALCS[\"*XY-MT*\",LOCAL_DATUM[\"*X-Y*\",10000],UNIT[\"Meter\", 1],AXIS[\"X\",EAST],AXIS[\"Y\",NORTH]]";
String wkt = "GEOGCS[\"LL84\",DATUM[\"WGS84\",SPHEROID[\"WGS84\",6378137.000,298.25722293]],PRIMEM[\"Greenwich\",0],UNIT[\"Degree\",0.01745329251994]]";
MgFileFeatureSourceParams sdfParams = new MgFileFeatureSourceParams("OSGeo.SDF", "LatLong", wkt, featureSchema);
featureService.CreateFeatureSource(resourceIdentifier, sdfParams);
// We need to add some data to the sdf before using it. The spatial context
// reader must have an extent.
MgBatchPropertyCollection batchPropertyCollection = new MgBatchPropertyCollection();
MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter();
MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter();
MgGeometryFactory geometryFactory = new MgGeometryFactory();
// Make four points
batchPropertyCollection.Add(MakePoint("Point A", -87.727, 43.748, wktReaderWriter, agfReaderWriter));
batchPropertyCollection.Add(MakePoint("Point B", -87.728, 43.730, wktReaderWriter, agfReaderWriter));
batchPropertyCollection.Add(MakePoint("Point C", -87.726, 43.750, wktReaderWriter, agfReaderWriter));
batchPropertyCollection.Add(MakePoint("Point D", -87.728, 43.750, wktReaderWriter, agfReaderWriter));
// Old way commented out
/*
* // Add the batch property collection to the feature source
* MgInsertFeatures cmd = new MgInsertFeatures("Points", batchPropertyCollection);
* MgFeatureCommandCollection featureCommandCollection = new MgFeatureCommandCollection();
* featureCommandCollection.Add(cmd);
*
* // Execute the "add" commands
* featureService.UpdateFeatures(resourceIdentifier, featureCommandCollection, false);
*/
// Here's the mg-desktop way
MgFeatureReader insertResult = featureService.InsertFeatures(resourceIdentifier, "Points", batchPropertyCollection);
insertResult.Close();
// ...
//---------------------------------------------------//
// Create a new layer
LayerDefinitionFactory factory = new LayerDefinitionFactory();
// Create a mark symbol
String resourceId = "Library://Samples/Sheboygan/Symbols/BasicSymbols.SymbolLibrary";
String symbolName = "PushPin";
String width = "24"; // unit = points
String height = "24"; // unit = points
String color = "FFFF0000";
String markSymbol = factory.CreateMarkSymbol(resourceId, symbolName, width, height, color);
// Create a text symbol
String text = "ID";
String fontHeight = "12";
String foregroundColor = "FF000000";
String textSymbol = factory.CreateTextSymbol(text, fontHeight, foregroundColor);
// Create a point rule.
String ruleLegendLabel = "trees";
String filter = "";
String pointRule = factory.CreatePointRule(ruleLegendLabel, filter, textSymbol, markSymbol);
// Create a point type style.
String pointTypeStyle = factory.CreatePointTypeStyle(pointRule);
// Create a scale range.
String minScale = "0";
String maxScale = "1000000000000";
String pointScaleRange = factory.CreateScaleRange(minScale, maxScale, pointTypeStyle);
// Create the layer definiton.
String featureName = "PointSchema:Points";
String geometry = "GEOM";
String layerDefinition = factory.CreateLayerDefinition(featureSourceName, featureName, geometry, pointScaleRange);
//---------------------------------------------------//
// ...
XmlDocument domDocument = new XmlDocument();
domDocument.LoadXml(layerDefinition);
//Add the layer to the map
// TODO: Should probably validate this XML content
using (MemoryStream ms = new MemoryStream())
{
domDocument.Save(ms);
ms.Position = 0L;
//Note we do this to ensure our XML content is free of any BOM characters
byte[] ldfBytes = ms.ToArray();
Encoding utf8 = Encoding.UTF8;
String layerDefStr = new String(utf8.GetChars(ldfBytes));
ldfBytes = new byte[layerDefStr.Length - 1];
int byteCount = utf8.GetBytes(layerDefStr, 1, layerDefStr.Length - 1, ldfBytes, 0);
// Save the new layer definition to the session repository
MgByteSource byteSource = new MgByteSource(ldfBytes, ldfBytes.Length);
MgResourceIdentifier resourceID = new MgResourceIdentifier("Session:" + sessionId + "//" + layerName + ".LayerDefinition");
resourceService.SetResource(resourceID, byteSource.GetReader(), null);
//Insert this layer to our map
MgdLayer newLayer = new MgdLayer(resourceID, resourceService);
newLayer.Name = layerName;
newLayer.LegendLabel = legendLabel;
newLayer.DisplayInLegend = true;
newLayer.SetVisible(true);
layers.Insert(0, newLayer);
//Create analysis group if not already created
if (groups.IndexOf(groupName) < 0)
{
MgLayerGroup group = new MgLayerGroup(groupName);
group.LegendLabel = groupName;
group.DisplayInLegend = true;
groups.Add(group);
newLayer.Group = group;
}
MessageBox.Show("Layer (" + layerName + ") created");
_viewer.RefreshMap();
IMapLegend legend = Shell.Instance.Legend;
if (legend != null)
{
legend.RefreshLegend();
}
}
}
MgGeometry MultiGeometryFromSelection(MgFeatureService featureSrvc, MgMap map, String selText)
{
MgSelection sel = new MgSelection(map);
sel.FromXml(selText);
MgReadOnlyLayerCollection selLayers = sel.GetLayers();
if (selLayers == null)
{
return(null);
}
MgGeometryCollection geomColl = new MgGeometryCollection();
MgAgfReaderWriter agfRW = new MgAgfReaderWriter();
bool polyOnly = true;
for (int i = 0; i < selLayers.GetCount(); i++)
{
MgLayer layer = (MgLayer)selLayers.GetItem(i);
// TODO: How to get selectionSize?
//int selectionSize = 20;
string filter = sel.GenerateFilter(layer, layer.GetFeatureClassName());
if (filter == "")
{
continue;
}
MgFeatureQueryOptions query = new MgFeatureQueryOptions();
query.SetFilter(filter);
MgResourceIdentifier featureSource = new MgResourceIdentifier(layer.GetFeatureSourceId());
MgFeatureReader features = featureSrvc.SelectFeatures(featureSource, layer.GetFeatureClassName(), query);
if (features != null)
{
MgClassDefinition classDef = features.GetClassDefinition();
String geomPropName = classDef.GetDefaultGeometryPropertyName();
int j = 0;
//bool isPoly = true;
while (features.ReadNext())
{
MgByteReader geomReader = features.GetGeometry(geomPropName);
MgGeometry geom = agfRW.Read(geomReader);
if (j++ == 0)
{
int type = geom.GetGeometryType();
if (type == MgGeometryType.MultiPolygon || type == MgGeometryType.CurvePolygon || type == MgGeometryType.MultiCurvePolygon)
{
//isPoly = false;
polyOnly = false;
}
else if (type != MgGeometryType.Polygon)
{
break;
}
}
geomColl.Add(geom);
}
features.Close();
features.Dispose();
}
}
if (geomColl.GetCount() == 0)
{
return(null);
}
MgGeometryFactory gf = new MgGeometryFactory();
if (polyOnly)
{
MgPolygonCollection polyColl = new MgPolygonCollection();
for (int j = 0; j < geomColl.GetCount(); j++)
{
polyColl.Add((MgPolygon)geomColl.GetItem(j));
}
return(gf.CreateMultiPolygon(polyColl));
}
else
{
return(gf.CreateMultiGeometry(geomColl));
}
}
private void btnFindFeaturesInBuffer_Click(object sender, EventArgs e)
{
MgSelectionBase selection = _viewer.GetSelection();
MgReadOnlyLayerCollection selectedLayers = selection.GetLayers();
if (selectedLayers == null)
{
MessageBox.Show("Select a parcel");
return;
}
MgLayerBase parcels = null;
for (int i = 0; i < selectedLayers.GetCount(); i++)
{
MgLayerBase layer = selectedLayers.GetItem(i);
if (layer.Name == "Parcels")
{
parcels = layer;
break;
}
}
if (parcels == null)
{
MessageBox.Show("Select a parcel");
return;
}
int bufferRingSize = 500; // measured in metres
// Set up some objects for coordinate conversion
MgMapBase map = _viewer.GetMap();
MgLayerCollection mapLayers = map.GetLayers();
MgMapViewerProvider provider = _viewer.GetProvider();
MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService);
//Casting to MgdFeatureService because we want to use convenience APIs
MgFeatureService featureService = (MgdFeatureService)provider.CreateService(MgServiceType.FeatureService);
string sessionId = Guid.NewGuid().ToString();
String mapWktSrs = map.GetMapSRS();
MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter();
MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter();
MgCoordinateSystemFactory coordinateSystemFactory = new MgCoordinateSystemFactory();
MgCoordinateSystem srs = coordinateSystemFactory.Create(mapWktSrs);
MgMeasure srsMeasure = srs.GetMeasure();
// Check for a buffer layer. If it exists, delete
// the current features.
// If it does not exist, create a feature source and
// a layer to hold the buffer.
BufferHelper helper = new BufferHelper();
MgdLayer bufferLayer = null;
int layerIndex = map.GetLayers().IndexOf("Buffer");
if (layerIndex < 0)
{
// The layer does not exist and must be created.
MgResourceIdentifier bufferFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//Buffer.FeatureSource");
helper.CreateBufferFeatureSource(featureService, mapWktSrs, bufferFeatureResId);
bufferLayer = helper.CreateBufferLayer(resourceService, bufferFeatureResId, sessionId);
map.GetLayers().Insert(0, bufferLayer);
}
else
{
bufferLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex);
bufferLayer.DeleteFeatures("ID like '%'");
}
// Check for a parcel marker layer. If it exists, delete
// the current features.
// If it does not exist, create a feature source and
// a layer to hold the parcel markers.
MgdLayer parcelMarkerLayer = null;
layerIndex = map.GetLayers().IndexOf("ParcelMarker");
if (layerIndex < 0)
{
MgResourceIdentifier parcelFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//ParcelMarker.FeatureSource");
helper.CreateParcelMarkerFeatureSource(featureService, mapWktSrs, parcelFeatureResId);
parcelMarkerLayer = helper.CreateParcelMarkerLayer(resourceService, parcelFeatureResId, sessionId);
map.GetLayers().Insert(0, parcelMarkerLayer);
}
else
{
parcelMarkerLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex);
parcelMarkerLayer.DeleteFeatures("ID like '%'");
}
// Check each layer in the selection.
for (int i = 0; i < selectedLayers.GetCount(); i++)
{
// Only check selected features in the Parcels layer.
MgdLayer layer = (MgdLayer)selectedLayers.GetItem(i);
if (layer.GetName() == "Parcels")
{
string geomName = layer.GetFeatureGeometryName();
System.Diagnostics.Trace.TraceInformation("Marking all parcels inside the buffer that are of type 'MFG'");
MgFeatureReader featureReader = selection.GetSelectedFeatures(layer, layer.GetFeatureClassName(), false);
// Process each item in the MgFeatureReader. Get the
// geometries from all the selected features and
// merge them into a single geometry.
MgGeometryCollection inputGeometries = new MgGeometryCollection();
while (featureReader.ReadNext())
{
MgByteReader featureGeometryData = featureReader.GetGeometry(geomName);
MgGeometry featureGeometry = agfReaderWriter.Read(featureGeometryData);
inputGeometries.Add(featureGeometry);
}
MgGeometryFactory geometryFactory = new MgGeometryFactory();
MgGeometry mergedGeometries = geometryFactory.CreateMultiGeometry(inputGeometries);
// Create a buffer from the merged geometries
double bufferDist = srs.ConvertMetersToCoordinateSystemUnits(bufferRingSize);
MgGeometry bufferGeometry = mergedGeometries.Buffer(bufferDist, srsMeasure);
// Create a filter to select parcels within the buffer. Combine
// a basic filter and a spatial filter to select all parcels
// within the buffer that are of type "MFG".
MgFeatureQueryOptions queryOptions = new MgFeatureQueryOptions();
queryOptions.SetFilter("RTYPE = 'MFG'");
queryOptions.SetSpatialFilter(geomName, bufferGeometry, MgFeatureSpatialOperations.Inside);
featureReader = layer.SelectFeatures(queryOptions);
// Get the features from the feature source,
// determine the centroid of each selected feature, and
// add a point to the ParcelMarker layer to mark the
// centroid.
// Collect all the points into an MgFeatureCommandCollection,
// so they can all be added in one operation.
MgFeatureCommandCollection parcelMarkerCommands = new MgFeatureCommandCollection();
int inserted = 0;
while (featureReader.ReadNext())
{
MgByteReader byteReader = featureReader.GetGeometry(geomName);
MgGeometry geometry = agfReaderWriter.Read(byteReader);
MgPoint point = geometry.GetCentroid();
// Create an insert command for this parcel.
MgPropertyCollection properties = new MgPropertyCollection();
properties.Add(new MgGeometryProperty("ParcelLocation", agfReaderWriter.Write(point)));
//parcelMarkerCommands.Add(new MgInsertFeatures("ParcelMarkerClass", properties));
MgFeatureReader fr = parcelMarkerLayer.InsertFeatures(properties);
fr.Close();
inserted++;
}
featureReader.Close();
if (inserted == 0)
{
MessageBox.Show("No parcels within the buffer area match.");
return;
}
// Create a feature in the buffer feature source to show the area covered by the buffer.
MgPropertyCollection props = new MgPropertyCollection();
props.Add(new MgGeometryProperty("BufferGeometry", agfReaderWriter.Write(bufferGeometry)));
bufferLayer.InsertFeatures(props);
// Ensure that the buffer layer is visible and in the legend.
bufferLayer.SetVisible(true);
bufferLayer.ForceRefresh();
bufferLayer.SetDisplayInLegend(true);
parcelMarkerLayer.SetVisible(true);
parcelMarkerLayer.ForceRefresh();
MessageBox.Show("Done");
_viewer.RefreshMap();
IMapLegend legend = Shell.Instance.Legend;
if (legend != null)
{
legend.RefreshLegend();
}
}
}
}
private void SetPropertyMinMaxCount(MgLayerBase layer, MgDataPropertyDefinition prop)
{
var provider = _viewer.GetProvider();
var featureService = (MgFeatureService)provider.CreateService(MgServiceType.FeatureService);
MgResourceIdentifier resId = new MgResourceIdentifier(layer.GetFeatureSourceId());
String minValue = null;
String maxValue = null;
int count = 0;
MgFeatureQueryOptions queryOptions = new MgFeatureQueryOptions();
queryOptions.AddFeatureProperty(prop.Name);
MgFeatureReader featureReader = featureService.SelectFeatures(resId, layer.GetFeatureClassName(), queryOptions);
Dictionary <string, string> bucket = new Dictionary <string, string>();
while (featureReader.ReadNext())
{
String value = Util.GetFeaturePropertyValue(featureReader, prop.Name);
bucket[value] = value;
int propertyType = featureReader.GetPropertyType(prop.Name);
if (count == 0)
{
maxValue = value;
minValue = value;
}
switch (propertyType)
{
case MgPropertyType.String:
if (value.Length > 0)
{
if (value.CompareTo(maxValue) > 0)
{
maxValue = value;
}
if (value.CompareTo(minValue) < 0)
{
minValue = value;
}
}
break;
case MgPropertyType.Byte:
case MgPropertyType.Int16:
case MgPropertyType.Int32:
case MgPropertyType.Int64:
if (value.Length > 0)
{
if (Int64.Parse(value) > Int64.Parse(maxValue))
{
maxValue = value;
}
if (Int64.Parse(value) < Int64.Parse(minValue))
{
minValue = value;
}
}
break;
case MgPropertyType.Single:
case MgPropertyType.Double:
if (value != null)
{
if (Double.Parse(value) > Double.Parse(maxValue))
{
maxValue = value;
}
if (Double.Parse(value) < Double.Parse(minValue))
{
minValue = value;
}
}
count++;
break;
case MgPropertyType.Boolean:
case MgPropertyType.DateTime:
case MgPropertyType.Null:
case MgPropertyType.Blob:
case MgPropertyType.Clob:
case MgPropertyType.Feature:
case MgPropertyType.Geometry:
break;
}
count++;
}
featureReader.Close();
txtMin.Text = minValue;
txtMax.Text = maxValue;
if (THEME_INDIVIDUAL == cmbDistribution.SelectedValue.ToString())
{
count = bucket.Count;
}
numRules.Value = featureCount = count;
}
//---------------------------------------------------------------------------------------
//
// ���ܣ�GetPropertyType()������GetPropertyName()������ʹ��
//
// ���ߣ�
//
// ���ڣ� 2007.5.23
//
// ����ʷ����
//
//---------------------------------------------------------------------------------------
public void OutputReader(MgFeatureReader featureReader)
{
while (featureReader.ReadNext())
{
int propCount = featureReader.GetPropertyCount();
for (int j = 0; j < propCount; j++)
{
string propertyName = featureReader.GetPropertyName(j);
bool boolVal = featureReader.IsNull(propertyName);
if (boolVal)
{
continue;
}
//MgPropertyType propertyType = (MgPropertyType)featureReader.GetPropertyType(propertyName);
int proType = featureReader.GetPropertyType(propertyName);
GetPropertyValue(featureReader, proType, propertyName);
}
}
}
private IFeature[] GetFeatureArray(MgFeatureReader reader, string name)
{
MgFeatureReader nr = reader.GetFeatureObject(name);
var lr = new LocalNativeFeatureReader(nr);
List<IFeature> features = new List<IFeature>(lr);
return features.ToArray();
}
public LocalNativeFeature(MgFeatureReader reader, FixedWKTReader mgReader, MgAgfReaderWriter agfRw, MgWktReaderWriter wktRw)
: base(Utility.ConvertClassDefinition(reader.GetClassDefinition()))
{
for (int i = 0; i < reader.GetPropertyCount(); i++)
{
string name = _ordinalMap[i];
GetByteReaderMethod getblob = () => { return reader.GetBLOB(name); };
GetByteReaderMethod getclob = () => { return reader.GetCLOB(name); };
GetByteReaderMethod getgeom = () => { return reader.GetGeometry(name); };
if (!reader.IsNull(name))
{
var pt = (PropertyValueType)reader.GetPropertyType(name);
switch (pt)
{
case PropertyValueType.Blob:
((BlobValue)_values[name]).Value = Utility.StreamAsArray(new MgReadOnlyStream(getblob));
break;
case PropertyValueType.Boolean:
((BooleanValue)_values[name]).Value = reader.GetBoolean(name);
break;
case PropertyValueType.Byte:
((ByteValue)_values[name]).Value = reader.GetByte(name);
break;
case PropertyValueType.Clob:
byte[] b = Utility.StreamAsArray(new MgReadOnlyStream(getclob));
((ClobValue)_values[name]).Value = Encoding.UTF8.GetChars(b);
break;
case PropertyValueType.DateTime:
((DateTimeValue)_values[name]).Value = Utility.ConvertMgDateTime(reader.GetDateTime(name));
break;
case PropertyValueType.Double:
((DoubleValue)_values[name]).Value = reader.GetDouble(name);
break;
case PropertyValueType.Feature:
((FeatureValue)_values[name]).Value = GetFeatureArray(reader, name);
break;
case PropertyValueType.Geometry:
//TODO: See if SWIG issues come into play here
try
{
//TODO: See if SWIG issues come into play here
var geom = agfRw.Read(reader.GetGeometry(name));
var wkt = wktRw.Write(geom);
((GeometryValue)_values[name]).Value = mgReader.Read(wkt);
}
catch //Invalid geometry fail!
{
((GeometryValue)_values[name]).SetNull();
}
break;
case PropertyValueType.Int16:
((Int16Value)_values[name]).Value = reader.GetInt16(name);
break;
case PropertyValueType.Int32:
((Int32Value)_values[name]).Value = reader.GetInt32(name);
break;
case PropertyValueType.Int64:
((Int64Value)_values[name]).Value = reader.GetInt64(name);
break;
case PropertyValueType.Single:
((SingleValue)_values[name]).Value = reader.GetSingle(name);
break;
case PropertyValueType.String:
((StringValue)_values[name]).Value = reader.GetString(name);
break;
}
}
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
string sessionId = GetRequestParameters(Request)["SESSION"];
string mapName = GetRequestParameters(Request)["MAPNAME"];
string locale = GetRequestParameters(Request)["LOCALE"];
if (string.IsNullOrEmpty(sessionId))
{
Response.Clear();
Response.End();
return;
}
if (string.IsNullOrEmpty(mapName))
{
Response.Clear();
Response.End();
return;
}
MgResourceService resourceSrvc = GetMgResurceService(sessionId);
MgFeatureService featureSrvc = GetMgFeatureService(sessionId);
MgMap map = new MgMap();
map.Open(resourceSrvc, mapName);
string layernames = GetRequestParameters(Request)["LAYERNAMES"];
string GEOMETRY = GetRequestParameters(Request)["GEOMETRY"];
string selVar = GetRequestParameters(Request)["SELECTIONVARIANT"];
string type = GetRequestParameters(Request)["tp"];
string inputSel = GetRequestParameters(Request)["SELECTION"];
bool hasInputGeom = false;
if (!string.IsNullOrEmpty(GEOMETRY))
{
hasInputGeom = true;
}
//selection ima prednost pred podano geometrijo ...
MgWktReaderWriter wktrw = new MgWktReaderWriter();
if (!string.IsNullOrEmpty(inputSel))
{
MgGeometry inputGeom = MultiGeometryFromSelection(featureSrvc, map, inputSel);
GEOMETRY = wktrw.Write(inputGeom);
}
MgAgfReaderWriter agfRW = new MgAgfReaderWriter();
int nLayer = 0;
// pobrišem in zgradim na novo samo tiste, ki imajo zadetke ...
int nSloj = 0;
string filter = "";
StringBuilder sbOut = new StringBuilder();
sbOut.Append("<table width=\"100%\" class=\"results\">");
sbOut.Append("<tr><td class='header'></td><td class='header'>" + "Layer" + "</td><td class='header' align=\"center\">" + "Select" + "</td><td class='header' align=\"center\">" + "Report" + "</td></tr>");
MgSelection selAll = new MgSelection(map);
foreach (MgLayer layer in map.GetLayers())
{
if (type != "2")
{
if (!layer.IsVisible())
{
goto nextlay;
}
}
if (layer.LegendLabel == "")
{
goto nextlay;
}
try
{
nLayer++;
filter = String.Format("{0} {1} GeomFromText('{2}')", layer.GetFeatureGeometryName(), selVar, GEOMETRY);
//preveriti še filter na Layerju. Ker ne gre drugače, je potrebno pogledati v XML
MgResourceIdentifier layerDefResId = layer.GetLayerDefinition();
MgByteReader byteReader = resourceSrvc.GetResourceContent(layerDefResId);
System.Xml.XmlDocument doc = new System.Xml.XmlDocument();
String xmlLayerDef = byteReader.ToString();
doc.LoadXml(xmlLayerDef);
KALI.MGE.Objects.KALILayerDefinition.LayerDefinition ld = KALI.MGE.Objects.KALILayerDefinition.LayerDefinition.Parse(xmlLayerDef);
if (!string.IsNullOrEmpty(ld.VectorLayerDefinition.Filter))
{
filter += " AND (" + ld.VectorLayerDefinition.Filter + ")";
}
//query the features
MgFeatureQueryOptions opts = new MgFeatureQueryOptions();
opts.SetFilter(filter);
String featureClassName = layer.GetFeatureClassName();
MgResourceIdentifier srcId = new MgResourceIdentifier(layer.GetFeatureSourceId());
MgFeatureReader features = featureSrvc.SelectFeatures(srcId, featureClassName, opts);
bool hasResult = features.ReadNext();
if (hasResult)
{
nSloj++;
int n = 0;
MgClassDefinition classDef = features.GetClassDefinition();
MgPropertyDefinitionCollection classDefProps = classDef.GetIdentityProperties();
ArrayList idPropNames = new ArrayList(classDefProps.GetCount());
for (int j = 0; j < classDefProps.GetCount(); j++)
{
MgPropertyDefinition idProp = classDefProps.GetItem(j);
idPropNames.Add(idProp.GetName());
}
MgSelection sel = new MgSelection(map);
do
{
// Generate XML to selection this feature
MgPropertyCollection idProps = new MgPropertyCollection();
foreach (string id in idPropNames)
{
int idPropType = features.GetPropertyType(id);
switch (idPropType)
{
case MgPropertyType.Int32:
idProps.Add(new MgInt32Property(id, features.GetInt32(id)));
break;
case MgPropertyType.String:
idProps.Add(new MgStringProperty(id, features.GetString(id)));
break;
case MgPropertyType.Int64:
idProps.Add(new MgInt64Property(id, features.GetInt64(id)));
break;
case MgPropertyType.Double:
idProps.Add(new MgDoubleProperty(id, features.GetDouble(id)));
break;
case MgPropertyType.Single:
idProps.Add(new MgSingleProperty(id, features.GetSingle(id)));
break;
case MgPropertyType.DateTime:
idProps.Add(new MgDateTimeProperty(id, features.GetDateTime(id)));
break;
default:
//throw new SearchError(String.Format(MgLocalizer.GetString("SEARCHTYYPENOTSUP", locale), new Object[] { idPropType.ToString() }), searchError);
break;
}
}
sel.AddFeatureIds(layer, featureClassName, idProps);
selAll.AddFeatureIds(layer, featureClassName, idProps);
n++;
//if (n > 1000) break;
} while (features.ReadNext());
features.Close();
features.Dispose();
string selText = EscapeForHtml(sel.ToXml());
string seljs = "<div class=\"allLay\" onclick=\"parent.SetSelectionXML('" + selText + "');\"><img width=\"16\" height=\"16\" style=\"border:0\" src=\"images/mActionZoomToSelected.png\"/></div>";
string seljs3 = "<div class=\"allLay\" onclick=\"parent.MultiGridShow('" + selText + "');\"><img width=\"16\" height=\"16\" style=\"border:0\" src=\"images/mActionOpenTable.png\"/></div>";
string linfo = "<b>" + layer.LegendLabel + "</b><br />" + n.ToString() + " " + "Hits";
sbOut.Append("<tr><td class=\"results\">" + nSloj.ToString() + "</td><td class=\"results\">" + linfo + "</td><td align=\"center\" class=\"results\">" + seljs + "</td><td align=\"center\" class=\"results\">" + seljs3 + "</td></tr>");
}
}
catch (Exception)
{
continue;
}
nextlay:
continue;
}
sbOut.Append("</table>");
string selAllText = EscapeForHtml(selAll.ToXml());
string seljsAll = "<div class=\"allLay\" onclick=\"parent.SetSelectionXML('" + selAllText + "');\"><img width=\"16\" height=\"16\" style=\"border:0\" src=\"images/mActionZoomToSelected.png\"/>" + "Select All" + "</div>";
string seljsAll3 = "<div class=\"allLay\" onclick=\"parent.MultiGridShow('" + selAllText + "');\"><img width=\"16\" height=\"16\" style=\"border:0\" src=\"images/mActionOpenTable.png\"/>" + "Report All" + "</div>";
sbOut.Append(string.Format("<br /><table width=\"100%\" class=\"results\"><tr><td class=\"results\">{0}</td><td class=\"results\">{1}</td></tr></table>", seljsAll, seljsAll3));
featureSrvc.Dispose();
resourceSrvc.Dispose();
if (nSloj > 0)
{
litPrebodi.Text = sbOut.ToString();
}
else
{
litPrebodiTitle.Visible = false;
litPrebodi.Text = "<b>" + "None layer lies below the selected item/area!" + "</b>";
}
MgGeometry inGeom = wktrw.Read(GEOMETRY);
double rw = map.ViewScale / Math.Sqrt(inGeom.Area);
//koordinate
if (hasInputGeom & rw > 400)
{
string output = "";
output = pointTransformAndWriteZ(GEOMETRY, map);
litKoordinate.Text = output;
litKoordinateTitle.Text = "Coordinates of selected points:";
}
}
}
private MgFeature CreateFeatureFromReader(MgFeatureReader reader)
{
var feature = new MgFeature();
var hash = feature.Properties;
for (int i = 0; i < reader.GetPropertyCount(); i++)
{
var pt = reader.GetPropertyType(i);
//Skip un-presentable types
if (pt == MgPropertyType.Null ||
pt == MgPropertyType.Raster ||
pt == MgPropertyType.Blob ||
pt == MgPropertyType.Feature ||
pt == MgPropertyType.Clob)
continue;
string name = reader.GetPropertyName(i);
if (reader.IsNull(i))
{
hash[name] = null;
}
else
{
switch (pt)
{
case MgPropertyType.Boolean:
hash[name] = reader.GetBoolean(i);
break;
case MgPropertyType.Byte:
hash[name] = reader.GetByte(i);
break;
case MgPropertyType.DateTime:
{
var dt = reader.GetDateTime(i);
hash[name] = new DateTime(dt.Year, dt.Month, dt.Day, dt.Hour, dt.Minute, dt.Second, 0);
}
break;
case MgPropertyType.Double:
case MgPropertyType.Decimal:
hash[name] = reader.GetDouble(i);
break;
case MgPropertyType.Int16:
hash[name] = reader.GetInt16(i);
break;
case MgPropertyType.Int32:
hash[name] = reader.GetInt32(i);
break;
case MgPropertyType.Int64:
hash[name] = reader.GetInt64(i);
break;
case MgPropertyType.Single:
hash[name] = reader.GetSingle(i);
break;
case MgPropertyType.String:
hash[name] = reader.GetString(i);
break;
case MgPropertyType.Geometry:
{
MgByteReader agf = reader.GetGeometry(i);
feature.Geometry = _agfRw.Read(agf);
}
break;
}
}
}
return feature;
}
//---------------------------------------------------------------------------------------
//
// ���ܣ�δ֪��ѯ����е��������ݵ����͵Ĵ������
//
//
// ���ߣ�
//
// ���ڣ� 2007.5.23
//
// ����ʷ����
//
//---------------------------------------------------------------------------------------
public void GetPropertyValue(MgFeatureReader featureReader, int propertyType, string propertyName)
{
switch (propertyType )
{
case MgPropertyType.Null:
break;
case MgPropertyType.Boolean:
bool val1 = featureReader.GetBoolean(propertyName);
break;
case MgPropertyType.Byte:
Byte val2 = featureReader.GetByte(propertyName);
break;
case MgPropertyType.DateTime:
MgDateTime val3 = featureReader.GetDateTime(propertyName);
break;
case MgPropertyType.Single:
float val4 = featureReader.GetSingle(propertyName);
break;
case MgPropertyType.Double:
double val5 = featureReader.GetDouble(propertyName);
break;
case MgPropertyType.Int16:
Int16 val6 = featureReader.GetInt16(propertyName);
break;
case MgPropertyType.Int32:
Int32 val7 = featureReader.GetInt32(propertyName);
break;
case MgPropertyType.Int64:
Int64 val8 = featureReader.GetInt64(propertyName);
break;
case MgPropertyType.String:
string val9 = featureReader.GetString(propertyName);
break;
case MgPropertyType.Blob:
string val10 = propertyName + " ��Blob����";
break;
case MgPropertyType.Clob:
string val11 = propertyName + " ��Clob����";
break;
case MgPropertyType.Feature:
MgFeatureReader val12 = featureReader.GetFeatureObject(propertyName);
break;
case MgPropertyType.Geometry:
MgByteReader va13l = featureReader.GetGeometry(propertyName);
MgAgfReaderWriter agfReader = new MgAgfReaderWriter();
MgGeometry districtGeometry = agfReader.Read(va13l);
break;
case MgPropertyType.Raster:
MgRaster val14 = featureReader.GetRaster(propertyName) ;
break;
default:
string val13 = "δ֪����";
break;
}
}
private void btnCreateBuffer_Click(object sender, EventArgs e)
{
MgSelectionBase selection = _viewer.GetSelection();
MgReadOnlyLayerCollection layers = selection.GetLayers();
if (layers == null)
{
MessageBox.Show("Select a parcel");
return;
}
MgLayerBase parcels = null;
for (int i = 0; i < layers.GetCount(); i++)
{
MgLayerBase layer = layers.GetItem(i);
if (layer.Name == "Parcels")
{
parcels = layer;
break;
}
}
if (parcels == null)
{
MessageBox.Show("Select a parcel");
return;
}
int bufferRingSize = 100; // measured in metres
int bufferRingCount = 5;
// Set up some objects for coordinate conversion
MgMapBase map = _viewer.GetMap();
MgLayerCollection mapLayers = map.GetLayers();
MgMapViewerProvider provider = _viewer.GetProvider();
MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService);
//Casting to MgdFeatureService because we want to use convenience APIs
MgFeatureService featureService = (MgdFeatureService)provider.CreateService(MgServiceType.FeatureService);
String mapWktSrs = map.GetMapSRS();
MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter();
MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter();
MgCoordinateSystemFactory coordinateSystemFactory = new MgCoordinateSystemFactory();
MgCoordinateSystem srs = coordinateSystemFactory.Create(mapWktSrs);
MgMeasure srsMeasure = srs.GetMeasure();
string sessionId = Guid.NewGuid().ToString();
BufferHelper helper = new BufferHelper();
// Check for a buffer layer. If it exists, delete
// the current features.
// If it does not exist, create a feature source and
// a layer to hold the buffer.
MgdLayer bufferLayer = null;
int layerIndex = mapLayers.IndexOf("Buffer");
if (layerIndex < 0)
{
// The layer does not exist and must be created.
MgResourceIdentifier bufferFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//Buffer.FeatureSource");
helper.CreateBufferFeatureSource(featureService, mapWktSrs, bufferFeatureResId);
bufferLayer = helper.CreateBufferLayer(resourceService, bufferFeatureResId, sessionId);
mapLayers.Insert(0, bufferLayer);
}
else
{
bufferLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex);
bufferLayer.DeleteFeatures("ID like '%'");
}
// Get the selected features from the MgSelection object
MgFeatureReader featureReader = selection.GetSelectedFeatures(parcels, parcels.GetFeatureClassName(), false);
// Process each item in the MgFeatureReader. Get the
// geometries from all the selected features and
// merge them into a single geometry.
MgGeometryCollection inputGeometries = new MgGeometryCollection();
while (featureReader.ReadNext())
{
MgByteReader featureGeometryData = featureReader.GetGeometry(parcels.GetFeatureGeometryName());
MgGeometry featureGeometry = agfReaderWriter.Read(featureGeometryData);
inputGeometries.Add(featureGeometry);
}
MgGeometryFactory geometryFactory = new MgGeometryFactory();
MgGeometry mergedGeometries = geometryFactory.CreateMultiGeometry(inputGeometries);
// Add buffer features to the temporary feature source.
// Create multiple concentric buffers to show area.
// If the stylization for the layer draws the features
// partially transparent, the concentric rings will be
// progressively darker towards the center.
// The stylization is set in the layer template file, which
// is used in function CreateBufferLayer().
for (int bufferRing = 0; bufferRing < bufferRingCount; bufferRing++)
{
double bufferDist = srs.ConvertMetersToCoordinateSystemUnits(bufferRingSize * (bufferRing + 1));
MgGeometry bufferGeometry = mergedGeometries.Buffer(bufferDist, srsMeasure);
MgPropertyCollection properties = new MgPropertyCollection();
properties.Add(new MgGeometryProperty("BufferGeometry", agfReaderWriter.Write(bufferGeometry)));
MgFeatureReader fr = bufferLayer.InsertFeatures(properties);
fr.Close();
}
bufferLayer.SetVisible(true);
bufferLayer.ForceRefresh();
bufferLayer.SetDisplayInLegend(true);
MessageBox.Show("Buffer created");
_viewer.RefreshMap();
IMapLegend legend = Shell.Instance.Legend;
if (legend != null)
{
legend.RefreshLegend();
}
}
private MgFeature CreateFeatureFromReader(MgFeatureReader reader)
{
var feature = new MgFeature();
var hash = feature.Properties;
for (int i = 0; i < reader.GetPropertyCount(); i++)
{
var pt = reader.GetPropertyType(i);
//Skip un-presentable types
if (pt == MgPropertyType.Null ||
pt == MgPropertyType.Raster ||
pt == MgPropertyType.Blob ||
pt == MgPropertyType.Feature ||
pt == MgPropertyType.Clob)
{
continue;
}
string name = reader.GetPropertyName(i);
if (reader.IsNull(i))
{
hash[name] = null;
}
else
{
switch (pt)
{
case MgPropertyType.Boolean:
hash[name] = reader.GetBoolean(i);
break;
case MgPropertyType.Byte:
hash[name] = reader.GetByte(i);
break;
case MgPropertyType.DateTime:
{
var dt = reader.GetDateTime(i);
hash[name] = new DateTime(dt.Year, dt.Month, dt.Day, dt.Hour, dt.Minute, dt.Second, 0);
}
break;
case MgPropertyType.Double:
case MgPropertyType.Decimal:
hash[name] = reader.GetDouble(i);
break;
case MgPropertyType.Int16:
hash[name] = reader.GetInt16(i);
break;
case MgPropertyType.Int32:
hash[name] = reader.GetInt32(i);
break;
case MgPropertyType.Int64:
hash[name] = reader.GetInt64(i);
break;
case MgPropertyType.Single:
hash[name] = reader.GetSingle(i);
break;
case MgPropertyType.String:
hash[name] = reader.GetString(i);
break;
case MgPropertyType.Geometry:
{
MgByteReader agf = reader.GetGeometry(i);
feature.Geometry = _agfRw.Read(agf);
}
break;
}
}
}
return(feature);
}
public LocalNativeFeature(MgFeatureReader reader, FixedWKTReader mgReader, MgAgfReaderWriter agfRw, MgWktReaderWriter wktRw)
: base(Utility.ConvertClassDefinition(reader.GetClassDefinition()))
{
for (int i = 0; i < reader.GetPropertyCount(); i++)
{
string name = _ordinalMap[i];
GetByteReaderMethod getblob = () => { return(reader.GetBLOB(name)); };
GetByteReaderMethod getclob = () => { return(reader.GetCLOB(name)); };
GetByteReaderMethod getgeom = () => { return(reader.GetGeometry(name)); };
if (!reader.IsNull(name))
{
var pt = (PropertyValueType)reader.GetPropertyType(name);
switch (pt)
{
case PropertyValueType.Blob:
((BlobValue)_values[name]).Value = Utility.StreamAsArray(new MgReadOnlyStream(getblob));
break;
case PropertyValueType.Boolean:
((BooleanValue)_values[name]).Value = reader.GetBoolean(name);
break;
case PropertyValueType.Byte:
((ByteValue)_values[name]).Value = reader.GetByte(name);
break;
case PropertyValueType.Clob:
byte[] b = Utility.StreamAsArray(new MgReadOnlyStream(getclob));
((ClobValue)_values[name]).Value = Encoding.UTF8.GetChars(b);
break;
case PropertyValueType.DateTime:
((DateTimeValue)_values[name]).Value = Utility.ConvertMgDateTime(reader.GetDateTime(name));
break;
case PropertyValueType.Double:
((DoubleValue)_values[name]).Value = reader.GetDouble(name);
break;
case PropertyValueType.Feature:
((FeatureValue)_values[name]).Value = GetFeatureArray(reader, name);
break;
case PropertyValueType.Geometry:
//TODO: See if SWIG issues come into play here
try
{
//TODO: See if SWIG issues come into play here
var geom = agfRw.Read(reader.GetGeometry(name));
var wkt = wktRw.Write(geom);
((GeometryValue)_values[name]).Value = mgReader.Read(wkt);
}
catch //Invalid geometry fail!
{
((GeometryValue)_values[name]).SetNull();
}
break;
case PropertyValueType.Int16:
((Int16Value)_values[name]).Value = reader.GetInt16(name);
break;
case PropertyValueType.Int32:
((Int32Value)_values[name]).Value = reader.GetInt32(name);
break;
case PropertyValueType.Int64:
((Int64Value)_values[name]).Value = reader.GetInt64(name);
break;
case PropertyValueType.Single:
((SingleValue)_values[name]).Value = reader.GetSingle(name);
break;
case PropertyValueType.String:
((StringValue)_values[name]).Value = reader.GetString(name);
break;
}
}
}
}
public void FillValues(MgFeatureReader reader)
{
List<string> toDelete = new List<string>();
try
{
this.FeatId = reader.GetInt32(this._identityFieldName);
this.UID = reader.GetInt32(this._uidKey);
this.HaveUID = true;
}
catch
{
}
foreach (KeyValuePair<string, FeatureProperty> item in this.Properties)
{
try
{
item.Value.Value = this._helper.GetFeaturePropertyValue(reader, item.Key, false);
item.Value.PropertyType = reader.GetPropertyType(item.Key);
item.Value._initialized = true;
}
catch (MgObjectNotFoundException)
{
toDelete.Add(item.Key);
}
}
foreach (string key in toDelete)
{
this.Properties.Remove(key);
}
try
{
this.GetAviableValues(reader.ToXml().ToString());
}
catch
{
}
}
