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();
}
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();
}
public LayerVisibilityDialog(MgLayerCollection layers)
{
InitializeComponent();
for (int i = 0; i < layers.GetCount(); i++)
{
MgLayerBase layer = layers.GetItem(i);
grdLayers.Rows.Add(layer.LegendLabel, layer.GetVisible(), layer.IsVisible());
}
}
public LayerVisibilityDialog(MgLayerCollection layers)
{
InitializeComponent();
for (int i = 0; i < layers.GetCount(); i++)
{
MgLayerBase layer = layers.GetItem(i);
grdLayers.Rows.Add(layer.LegendLabel, layer.GetVisible(), layer.IsVisible());
}
}
private void btnRenameRoadsLayer_Click(object sender, EventArgs e)
{
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
bool bRefresh = false;
if (layers.IndexOf("Roads") >= 0)
{
MgLayerBase roads = layers.GetItem("Roads");
roads.Name = "Streets";
roads.LegendLabel = "Streets";
MessageBox.Show("Layer (Roads) has been changed to (Streets)");
btnRenameRoadsLayer.Text = "Rename Streets Layer to Roads";
bRefresh = true;
}
else if (layers.IndexOf("Streets") >= 0)
{
MgLayerBase streets = layers.GetItem("Streets");
streets.Name = "Roads";
streets.LegendLabel = "Roads";
MessageBox.Show("Layer (Streets) has been changed to (Roads)");
btnRenameRoadsLayer.Text = "Rename Roads Layer to Streets";
bRefresh = true;
}
if (bRefresh)
{
_viewer.RefreshMap();
IMapLegend legend = Shell.Instance.Legend;
if (legend != null)
{
legend.RefreshLegend();
}
}
}
private void btnListLayers_Click(object sender, EventArgs e)
{
MgMapBase map = _viewer.GetMap();
MgResourceIdentifier resId = map.MapDefinition;
MgLayerCollection layers = map.GetLayers();
List <string> results = new List <string>();
for (int i = 0; i < layers.GetCount(); i++)
{
MgLayerBase layer = layers.GetItem(i);
results.Add(layer.Name + " (" + layer.LegendLabel + ")");
}
MessageBox.Show("Map (" + resId.ToString() + ") has " + layers.GetCount() + " layers: " + Environment.NewLine + Environment.NewLine + string.Join(Environment.NewLine, results.ToArray()));
}
public static MgLayerBase FindLayer(MgLayerCollection layers, String layerName)
{
MgLayerBase layer = null;
int i = 0;
for (i = 0; i < layers.GetCount(); i++)
{
MgLayerBase layer1 = layers.GetItem(i);
if (layer1.GetName() == layerName)
{
layer = layer1;
break;
}
}
return(layer);
}
public DigitizingAndRedlining(IMapViewer viewer)
{
InitializeComponent();
_viewer = viewer;
_geomFact = new MgGeometryFactory();
_wktRW = new MgWktReaderWriter();
_agfRW = new MgAgfReaderWriter();
this.Title = "Digitizing and Redlining";
_viewer.PropertyChanged += OnViewerPropertyChanged;
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
if (layers.IndexOf("Redline") >= 0)
{
_redlineLayer = (MgdLayer)layers.GetItem("Redline");
}
CheckDigitizingState();
}
internal void UpdateRedlineText(string text, int[] ids)
{
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
MgLayerBase redlineLayer = layers.GetItem(_layer.SystemName);
//HACK: Workaround FeatId leaky abstraction in SHP provider
MgClassDefinition cls = redlineLayer.GetClassDefinition();
MgPropertyDefinitionCollection idProps = cls.GetIdentityProperties();
MgPropertyDefinition idProp = idProps.GetItem(0);
redlineLayer.ForceRefresh();
//This lib doesn't reference mg-desktop so the convenience APIs aren't available to us
//Gotta go the old verbose route
List <string> filters = new List <string>();
foreach (int id in ids)
{
filters.Add(idProp.Name + " = " + id);
}
string updateFilter = string.Join(" OR ", filters.ToArray());
MgFeatureCommandCollection commands = new MgFeatureCommandCollection();
MgPropertyCollection updateValues = new MgPropertyCollection();
MgStringProperty updateProp = new MgStringProperty(RedlineSchemaFactory.TEXT_NAME, text);
updateValues.Add(updateProp);
MgUpdateFeatures update = new MgUpdateFeatures(redlineLayer.FeatureClassName, updateValues, updateFilter);
commands.Add(update);
MgPropertyCollection result = redlineLayer.UpdateFeatures(commands);
MgInt32Property updateResult = result.GetItem(0) as MgInt32Property;
MgStringProperty errorResult = result.GetItem(0) as MgStringProperty;
if (errorResult != null)
{
throw new Exception(errorResult.GetValue());
}
_viewer.RefreshMap();
}
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();
}
}
}
internal void DeleteRedlines(int[] ids)
{
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
MgLayerBase redlineLayer = layers.GetItem(_layer.SystemName);
//HACK: Workaround FeatId leaky abstraction in SHP provider
MgClassDefinition cls = redlineLayer.GetClassDefinition();
MgPropertyDefinitionCollection idProps = cls.GetIdentityProperties();
MgPropertyDefinition idProp = idProps.GetItem(0);
redlineLayer.ForceRefresh();
//This lib doesn't reference mg-desktop so the convenience APIs aren't available to us
//Gotta go the old verbose route
List <string> filters = new List <string>();
foreach (int id in ids)
{
filters.Add(idProp.Name + " = " + id);
}
string deleteFilter = string.Join(" OR ", filters.ToArray());
MgFeatureCommandCollection commands = new MgFeatureCommandCollection();
MgDeleteFeatures delete = new MgDeleteFeatures(redlineLayer.FeatureClassName, deleteFilter);
commands.Add(delete);
MgPropertyCollection result = redlineLayer.UpdateFeatures(commands);
MgInt32Property deleteResult = result.GetItem(0) as MgInt32Property;
if (deleteResult != null && deleteResult.GetValue() > 0)
{
_viewer.RefreshMap();
}
}
private void InsertRedlineGeometry(string text, MgGeometry geom, RedlineAction onRedlineAdded)
{
MgPropertyCollection feature = new MgPropertyCollection();
MgByteReader agf = _agfRW.Write(geom);
MgGeometryProperty geomProp = new MgGeometryProperty(RedlineSchemaFactory.GEOM_NAME, agf);
feature.Add(geomProp);
MgStringProperty strProp = new MgStringProperty(RedlineSchemaFactory.TEXT_NAME, text);
feature.Add(strProp);
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
MgLayerBase redlineLayer = layers.GetItem(_layer.SystemName);
MgClassDefinition cls = redlineLayer.GetClassDefinition();
MgPropertyDefinitionCollection idProps = cls.GetIdentityProperties();
MgPropertyDefinition idProp = idProps.GetItem(0);
redlineLayer.ForceRefresh();
//This lib doesn't reference mg-desktop so the convenience APIs aren't available to us
//Gotta go the old verbose route
MgFeatureCommandCollection commands = new MgFeatureCommandCollection();
MgInsertFeatures insert = new MgInsertFeatures(redlineLayer.FeatureClassName, feature);
commands.Add(insert);
MgPropertyCollection result = redlineLayer.UpdateFeatures(commands);
//Insert result is a MgFeatureProperty containing an MgFeatureReader
MgFeatureProperty insertResult = result.GetItem(0) as MgFeatureProperty;
MgStringProperty errorResult = result.GetItem(0) as MgStringProperty;
if (insertResult != null)
{
var reader = insertResult.GetValue();
int inserted = 0;
int?id = null;
try
{
if (reader.ReadNext())
{
inserted++;
id = reader.GetInt32(idProp.Name);
}
}
catch (MgException ex)
{
ex.Dispose();
}
finally
{
reader.Close();
}
if (inserted > 0)
{
_viewer.RefreshMap();
onRedlineAdded(id, text);
}
}
else if (errorResult != null)
{
throw new Exception(errorResult.GetValue());
}
}
public static MgLayerBase FindLayer(MgLayerCollection layers, String layerName)
{
MgLayerBase layer = null;
int i = 0;
for (i = 0; i < layers.GetCount(); i++)
{
MgLayerBase layer1 = layers.GetItem(i);
if (layer1.GetName() == layerName)
{
layer = layer1;
break;
}
}
return layer;
}
private void btnShowBuildings_Click(object sender, EventArgs e)
{
MgMapViewerProvider provider = _viewer.GetProvider();
MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService);
string layerName = "RecentlyBuilt";
string legendLabel = "Built after 1980";
string groupName = "Analysis";
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
MgLayerGroupCollection groups = map.GetLayerGroups();
if (layers.IndexOf(layerName) >= 0)
{
MessageBox.Show("Layer (" + layerName + ") already created");
return;
}
//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();
XmlDocument domDocument = new XmlDocument();
domDocument.LoadXml(Layers.RecentlyBuilt);
// Get a list of all the <AreaRule><Filter> elements in
// the XML.
XmlNodeList nodes = domDocument.SelectNodes("//AreaRule/Filter");
// Find the correct node and change it
foreach (XmlNode node in nodes)
{
if (node.InnerText == "YRBUILT > 1950")
{
node.InnerText = "YRBUILT > 1980";
}
}
// Get a list of all the <LegendLabel> elements in the
// XML.
nodes = domDocument.SelectNodes("//LegendLabel");
// Find the correct node and change it
foreach (XmlNode node in nodes)
{
if (node.InnerText == "Built after 1950")
{
node.InnerText = "Built after 1980";
}
}
//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[] layerDefinition = ms.ToArray();
Encoding utf8 = Encoding.UTF8;
String layerDefStr = new String(utf8.GetChars(layerDefinition));
layerDefinition = new byte[layerDefStr.Length - 1];
int byteCount = utf8.GetBytes(layerDefStr, 1, layerDefStr.Length - 1, layerDefinition, 0);
// Save the new layer definition to the session repository
MgByteSource byteSource = new MgByteSource(layerDefinition, layerDefinition.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;
}
//Turn off square footage if it exists
if (layers.IndexOf("SquareFootage") >= 0)
{
MgLayerBase layer = layers.GetItem("SquareFootage");
layer.SetVisible(false);
}
MessageBox.Show("Layer (" + layerName + ") created");
_viewer.RefreshMap();
IMapLegend legend = Shell.Instance.Legend;
if (legend != null)
{
legend.RefreshLegend();
}
}
}
private void btnCreateSquareFootage_Click(object sender, EventArgs e)
{
string layerName = "SquareFootage";
string legendLabel = "Square Footage";
string groupName = "Analysis";
MgMapViewerProvider provider = _viewer.GetProvider();
MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService);
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 new layer
LayerDefinitionFactory factory = new LayerDefinitionFactory();
/// Create three area rules for three different
// scale ranges.
String areaRule1 = factory.CreateAreaRule("1 to 800",
"SQFT >= 1 AND SQFT < 800", "FFFFFF00");
String areaRule2 = factory.CreateAreaRule("800 to 1600",
"SQFT >= 800 AND SQFT < 1600", "FFFFBF20");
String areaRule3 = factory.CreateAreaRule("1600 to 2400",
"SQFT >= 1600 AND SQFT < 2400", "FFFF8040");
// Create an area type style.
String areaTypeStyle = factory.CreateAreaTypeStyle(areaRule1 + areaRule2 + areaRule3);
// Create a scale range.
String minScale = "0";
String maxScale = "10000";
String areaScaleRange = factory.CreateScaleRange(minScale, maxScale, areaTypeStyle);
// Create the layer definiton.
String featureClass = "Library://Samples/Sheboygan/Data/Parcels.FeatureSource";
String featureName = "SHP_Schema:Parcels";
String geometry = "SHPGEOM";
String layerDefinition = factory.CreateLayerDefinition(featureClass, featureName, geometry, areaScaleRange);
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;
}
//Turn off recently built if it exists
if (layers.IndexOf("RecentlyBuilt") >= 0)
{
MgLayerBase layer = layers.GetItem("RecentlyBuilt");
layer.SetVisible(false);
}
MessageBox.Show("Layer (" + layerName + ") created");
_viewer.RefreshMap();
IMapLegend legend = Shell.Instance.Legend;
if (legend != null)
{
legend.RefreshLegend();
}
}
}
public static MgLayer FindLayer(MgLayerCollection layers, string layerDef)
{
for (int i = 0; i < layers.GetCount(); i++)
{
MgLayer layer1 = (MgLayer)layers.GetItem(i);
if (layer1.GetLayerDefinition().ToString() == layerDef)
{
return layer1;
}
}
return null;
}
public static MgLayer FindLayerByName(MgLayerCollection layers, string layerName)
{
for (int i = 0; i < layers.GetCount(); i++)
{
if (layers.GetItem(i).GetName().ToLower() == layerName.ToLower())
{
return (layers.GetItem(i) as MgLayer);
}
}
return null;
}
