public DataTable GetFeatures(FeatureType featureType, IGeometry spatialConstraint)
{
DataTable table = null;
string layerId = featureType == FeatureType.Selection ? _appState.SelectionLayer : _appState.TargetLayer;
if (layerId.Length > 0)
{
Configuration config = AppContext.GetConfiguration();
Configuration.LayerRow layerRow = config.Layer.FindByLayerID(layerId);
CommonDataFrame dataFrame = AppContext.GetDataFrame(_appState.MapTab);
CommonLayer layer = dataFrame.Layers.FirstOrDefault(lyr => String.Compare(lyr.Name, layerRow.LayerName, true) == 0);
string query = GetQuery(featureType, layerRow, layer);
if (query != null)
{
CommonField keyField = layer.FindField(layerRow.KeyField);
if (spatialConstraint == null)
{
table = layer.GetFeatureTable(String.Format("{0},{1}", layer.GeometryField.Name, keyField.Name), query);
}
else
{
table = layer.GetFeatureTable(String.Format("{0},{1}", layer.GeometryField.Name, keyField.Name), query, spatialConstraint);
}
}
}
return(table);
}
private void DrawFeatures(Graphics graphics, string layerId, StringCollection ids, Color color, double opacity, string polygonMode, int penWidth, int dotSize)
{
if (ids.Count == 0)
{
return;
}
bool drawPolygonOutlines = polygonMode == "outline";
// get the layer
Configuration config = AppContext.GetConfiguration();
Configuration.LayerRow layerRow = config.Layer.FindByLayerID(layerId);
CommonDataFrame dataFrame = AppContext.GetDataFrame(_appState.MapTab);
CommonLayer layer = dataFrame.Layers.FirstOrDefault(lyr => String.Compare(lyr.Name, layerRow.LayerName, true) == 0);
// build the query string and select the features
CommonField field = layer.FindField(layerRow.KeyField);
string joinedIds = field.IsNumeric ? ids.Join(",") : String.Format("'{0}'", ids.Join("','"));
string query = String.Format("{0} in ({1})", field.Name, joinedIds);
string levelQuery = layerRow.GetLevelQuery(layer, _appState.Level);
if (!String.IsNullOrEmpty(levelQuery))
{
query += " and " + levelQuery;
}
CommonField keyField = layer.FindField(layerRow.KeyField);
DataTable table = layer.GetFeatureTable(String.Format("{0},{1}", layer.GeometryField.Name, keyField.Name), query);
if (table == null || table.Rows.Count == 0)
{
return;
}
OgcGeometryType geometryType = ((IGeometry)table.Rows[0][layer.GeometryField.Name]).OgcGeometryType;
// prepare the temporary image for drawing transparent highlight graphics
int width = Convert.ToInt32(graphics.VisibleClipBounds.Width);
int height = Convert.ToInt32(graphics.VisibleClipBounds.Height);
Bitmap bitMap = new Bitmap(width, height);
Graphics imageGraphics = Graphics.FromImage(bitMap);
imageGraphics.Clear(Color.Transparent);
// prepare the drawing objects
Brush brush = new SolidBrush(color);
Pen pen = new Pen(color, Convert.ToSingle(penWidth * _resolution));
pen.EndCap = System.Drawing.Drawing2D.LineCap.Square;
pen.LineJoin = System.Drawing.Drawing2D.LineJoin.Round;
Pen bufferPen = new Pen(color, Convert.ToSingle(5 * _resolution));
bufferPen.EndCap = System.Drawing.Drawing2D.LineCap.Round;
bufferPen.LineJoin = System.Drawing.Drawing2D.LineJoin.Round;
float dot = Convert.ToSingle(dotSize * _resolution);
// draw each shape in the table
foreach (DataRow row in table.Rows)
{
switch (geometryType)
{
case OgcGeometryType.Point:
IPoint point = (IPoint)row[layer.GeometryField.Name];
DrawPoint(imageGraphics, point, brush, dot);
break;
case OgcGeometryType.MultiPoint:
IMultiPoint multiPoint = (IMultiPoint)row[layer.GeometryField.Name];
DrawPoint(imageGraphics, (IPoint)multiPoint[0], brush, dot);
break;
case OgcGeometryType.MultiLineString:
DrawMultiLineString(imageGraphics, (IMultiLineString)row[layer.GeometryField.Name], pen);
break;
case OgcGeometryType.MultiPolygon:
if (drawPolygonOutlines)
{
DrawMultiPolygon(imageGraphics, (IMultiPolygon)row[layer.GeometryField.Name], null, null, pen);
}
else
{
DrawMultiPolygon(imageGraphics, (IMultiPolygon)row[layer.GeometryField.Name], brush, bufferPen);
}
break;
}
}
// draw the temporary image containing the highlight graphics on the output image at
// the specified opacity
float[][] matrixItems =
{
new float[] { 1, 0, 0, 0, 0 },
new float[] { 0, 1, 0, 0, 0 },
new float[] { 0, 0, 1, 0, 0 },
new float[] { 0, 0, 0, Convert.ToSingle(opacity), 0 },
new float[] { 0, 0, 0, 0, 1 }
};
ColorMatrix colorMatrix = new ColorMatrix(matrixItems);
ImageAttributes imageAtts = new ImageAttributes();
imageAtts.SetColorMatrix(colorMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
Rectangle drawRect = new Rectangle(0, 0, width, height);
graphics.DrawImage(bitMap, drawRect, 0, 0, width, height, GraphicsUnit.Pixel, imageAtts);
}
private void DefaultMethod()
{
string v = Request.Form["visiblelayers"];
string[] visibleLayers = v == null ? new string[0] : v.Split('\u0001');
string level = Request.Form["level"];
double x = Convert.ToDouble(Request.Form["x"]);
double y = Convert.ToDouble(Request.Form["y"]);
double distance = Convert.ToDouble(Request.Form["distance"]);
double scale = Convert.ToDouble(Request.Form["scale"]);
Configuration config = AppContext.GetConfiguration();
Configuration.MapTabRow mapTab = config.MapTab.First(o => o.MapTabID == Request.Form["maptab"]);
CommonDataFrame dataFrame = AppContext.GetDataFrame(mapTab);
Dictionary <String, Configuration.LayerRow> layers = new Dictionary <String, Configuration.LayerRow>();
Dictionary <String, Configuration.LayerFunctionRow> layerFunctions = new Dictionary <String, Configuration.LayerFunctionRow>();
foreach (Configuration.MapTabLayerRow mapTabLayer in mapTab.GetMapTabLayerRows())
{
bool isCandidateLayer = mapTab.IsInteractiveLegendNull() || mapTab.InteractiveLegend == 0;
if (!isCandidateLayer)
{
bool shownInLegend = !mapTabLayer.IsShowInLegendNull() && mapTabLayer.ShowInLegend == 1;
bool checkedInLegend = mapTabLayer.IsCheckInLegendNull() || mapTabLayer.CheckInLegend < 0 || visibleLayers.Any(o => o == mapTabLayer.LayerID);
isCandidateLayer = !shownInLegend || checkedInLegend;
}
if (isCandidateLayer)
{
Configuration.LayerRow layer = mapTabLayer.LayerRow;
Configuration.LayerFunctionRow layerFunction = layer.GetLayerFunctionRows().FirstOrDefault(o => o.FunctionName.ToLower() == "maptip");
if (layerFunction != null)
{
layers.Add(layer.LayerName, layer);
layerFunctions.Add(layer.LayerName, layerFunction);
}
}
}
string tipText = null;
for (int i = 0; i < dataFrame.Layers.Count - 1 && tipText == null; ++i)
{
CommonLayer commonLayer = dataFrame.Layers[i];
string id = null;
if (layers.ContainsKey(commonLayer.Name) && commonLayer.IsWithinScaleThresholds(scale))
{
if (commonLayer.Type == CommonLayerType.Feature)
{
Configuration.LayerRow layer = layers[commonLayer.Name];
string levelQuery = layer.GetLevelQuery(commonLayer, level);
CommonField keyField = commonLayer.FindField(layer.KeyField);
DataTable table = commonLayer.GetFeatureTable(keyField.Name, levelQuery, x, y, commonLayer.FeatureType == OgcGeometryType.MultiPolygon ? 0 : distance * scale);
if (table != null && table.Rows.Count > 0)
{
id = table.Rows[table.Rows.Count - 1][0].ToString();
}
}
if (commonLayer.Type == CommonLayerType.Image)
{
id = ((AgsLayer)commonLayer).GetRasterValue(x, y);
}
}
if (!String.IsNullOrEmpty(id))
{
Configuration.LayerFunctionRow layerFunction = layerFunctions[commonLayer.Name];
using (OleDbCommand command = layerFunction.GetDatabaseCommand())
{
command.Parameters[0].Value = id;
if (command.Parameters.Count > 1)
{
command.Parameters[1].Value = AppUser.GetRole();
}
using (OleDbDataReader reader = command.ExecuteReader())
{
if (reader.Read())
{
StringCollection text = new StringCollection();
for (int j = 0; j < reader.FieldCount; ++j)
{
if (!reader.IsDBNull(j))
{
text.Add(reader.GetValue(j).ToString());
}
}
if (text.Count > 0)
{
tipText = text.Join("\n");
}
}
}
command.Connection.Close();
}
}
}
if (tipText == null)
{
ReturnJson(null);
}
else
{
Dictionary <String, Object> result = new Dictionary <String, Object>();
result.Add("tipText", tipText);
ReturnJson(result);
}
}
private void SelectFeatures()
{
AppState appState = AppState.FromJson(Request.Form["state"]);
bool updated = false;
bool truncated = false;
if (Request.Form["geo"] == null)
{
appState.SelectionManager.SelectTargets();
updated = true;
}
else
{
double[] geo = Request.Form["geo"].Split(',').Select(o => Convert.ToDouble(o)).ToArray();
CommonDataFrame dataFrame = AppContext.GetDataFrame(appState.MapTab);
Configuration.LayerRow layer = Configuration.Layer.First(o => o.LayerID == (appState.Action == Action.Select ? appState.TargetLayer : appState.SelectionLayer));
CommonLayer commonLayer = dataFrame.Layers.FirstOrDefault(o => String.Compare(o.Name, layer.LayerName, true) == 0);
CommonField keyField = commonLayer.FindField(layer.KeyField);
string levelQuery = layer.GetLevelQuery(commonLayer, appState.Level);
DataTable table = null;
if (geo.Length == 4)
{
Envelope box = EnvelopeExtensions.FromArray(geo);
if (!layer.IsMaxSelectionAreaNull() && layer.MaxSelectionArea > 0 && box.Width * box.Height > layer.MaxSelectionArea)
{
throw new AppException("The selection shape was too large; try again with a smaller shape");
}
table = commonLayer.GetFeatureTable(keyField.Name, levelQuery, box.ToPolygon());
}
else
{
table = commonLayer.GetFeatureTable(keyField.Name, levelQuery, geo[0], geo[1], geo[2]);
}
UpdateMode mode = (UpdateMode)Enum.Parse(typeof(UpdateMode), Request.Form["mode"], true);
if (table != null && table.Rows.Count > 0)
{
if (appState.Action == Action.Select)
{
updated = UpdateIds(appState.TargetIds, table, mode);
if (!layer.IsMaxNumberSelectedNull())
{
truncated = appState.TargetIds.Truncate(layer.MaxNumberSelected);
}
if (mode != UpdateMode.Remove && table.Rows.Count == 1)
{
updated = UpdateActive(appState, table.Rows[0][0].ToString()) || updated;
}
}
else
{
updated = UpdateIds(appState.SelectionIds, table, mode);
if (!layer.IsMaxNumberSelectedNull())
{
appState.SelectionIds.Truncate(layer.MaxNumberSelected);
}
if (updated)
{
truncated = appState.SelectionManager.SelectTargets();
}
}
}
else if (mode == UpdateMode.New)
{
updated = appState.Action == Action.Select ? appState.TargetIds.Count > 0 : appState.SelectionIds.Count > 0;
appState.TargetIds.Clear();
appState.SelectionIds.Clear();
appState.ActiveMapId = "";
appState.ActiveDataId = "";
}
}
if (!updated)
{
ReturnJson(null);
}
if (!appState.TargetIds.Contains(appState.ActiveMapId))
{
appState.ActiveMapId = "";
appState.ActiveDataId = "";
}
Dictionary <String, Object> state = new Dictionary <String, Object>();
state.Add("ActiveMapId", appState.ActiveMapId);
state.Add("ActiveDataId", appState.ActiveDataId);
state.Add("TargetIds", appState.TargetIds);
state.Add("SelectionIds", appState.SelectionIds);
Dictionary <String, Object> result = new Dictionary <String, Object>();
result.Add("state", state);
result.Add("truncated", truncated);
ReturnJson(result);
}
public bool SelectTargets()
{
if (String.IsNullOrEmpty(_appState.TargetLayer) || String.IsNullOrEmpty(_appState.SelectionLayer))
{
return(false);
}
_appState.TargetIds.Clear();
if (_appState.SelectionIds.Count == 0)
{
return(false);
}
Configuration config = AppContext.GetConfiguration();
Configuration.LayerRow targetLayerRow = config.Layer.FindByLayerID(_appState.TargetLayer);
CommonDataFrame dataFrame = AppContext.GetDataFrame(_appState.MapTab);
CommonLayer targetLayer = dataFrame.Layers.FirstOrDefault(lyr => String.Compare(lyr.Name, targetLayerRow.LayerName, true) == 0);
CommonField keyField = targetLayer.FindField(targetLayerRow.KeyField);
DataTable targetTable = null;
string filter = "";
string sort = "";
bool truncated = false;
IGeometry selectionShape;
switch (_appState.Action)
{
case Action.FindAllWithin:
Configuration.ProximityRow proximity = config.Proximity.FindByProximityID(_appState.Proximity);
targetTable = GetFeatures(FeatureType.Selection);
if (targetTable.Rows.Count > 0)
{
selectionShape = MergeShapes(targetTable);
if (proximity.Distance > 0)
{
selectionShape = selectionShape.Buffer(proximity.Distance);
}
targetTable = targetLayer.GetFeatureTable(String.Format("{0},{1}", targetLayer.GeometryField.Name, keyField.Name), selectionShape);
}
break;
case Action.FindNearest1:
case Action.FindNearest2:
case Action.FindNearest3:
case Action.FindNearest4:
case Action.FindNearest5:
Envelope extent = config.Application.FindByApplicationID(_appState.Application).GetFullExtentEnvelope();
double minDist = targetLayerRow.IsMinNearestDistanceNull() ? 100 : targetLayerRow.MinNearestDistance;
double maxDist = targetLayerRow.IsMaxNearestDistanceNull() ? Math.Max(extent.Width, extent.Height) : targetLayerRow.MaxNearestDistance;
int count = Convert.ToInt32(Enum.GetName(typeof(Action), _appState.Action).Substring(11));
targetTable = GetFeatures(FeatureType.Selection);
if (targetTable.Rows.Count > 0)
{
selectionShape = MergeShapes(targetTable);
double distance = minDist;
do
{
targetTable = targetLayer.GetFeatureTable(String.Format("{0},{1}", targetLayer.GeometryField.Name, keyField.Name), selectionShape.Buffer(distance));
distance *= 1.414213562;
}while ((targetTable == null || targetTable.Rows.Count < count) && distance < maxDist);
if (targetTable != null)
{
targetTable.Columns.Add("Distance", typeof(double));
targetTable.Columns.Add("Index", typeof(int));
filter = "Index <= " + count.ToString();
sort = "Index";
DataColumn targetShapeColumn = targetTable.Columns.Cast <DataColumn>().First(c => c.DataType.IsSubclassOf(typeof(Geometry)));
int targetDistanceColumn = targetTable.Columns.IndexOf("Distance");
DataTable selectionTable = GetFeatures(FeatureType.Selection);
DataColumn selectionShapeColumn = selectionTable.Columns.Cast <DataColumn>().First(c => c.DataType.IsSubclassOf(typeof(Geometry)));
foreach (DataRow selectionRow in selectionTable.Rows)
{
selectionShape = (Geometry)selectionRow[selectionShapeColumn];
foreach (DataRow targetRow in targetTable.Rows)
{
double d = selectionShape.Distance((Geometry)targetRow[targetShapeColumn]);
if (targetRow.IsNull(targetDistanceColumn))
{
targetRow[targetDistanceColumn] = d;
}
else
{
targetRow[targetDistanceColumn] = Math.Min((double)targetRow[targetDistanceColumn], d);
}
}
}
DataRow[] targetRows = targetTable.Select("", "Distance");
for (int i = 0; i < targetRows.Length; ++i)
{
targetRows[i]["Index"] = i + 1;
}
}
}
break;
}
if (targetTable != null)
{
int maxTargets = targetLayerRow.IsMaxNumberSelectedNull() ? Int32.MaxValue : targetLayerRow.MaxNumberSelected;
int c = targetTable.Columns.IndexOf(keyField.Name);
foreach (DataRow row in targetTable.Select(filter, sort))
{
if (!row.IsNull(c))
{
if (_appState.TargetIds.Count == maxTargets)
{
truncated = true;
break;
}
_appState.TargetIds.Add(row[c].ToString());
}
}
}
return(truncated);
}