/// <summary>
/// Gets the FeatureLayer that is used for the selection tests.
/// </summary>
/// <param name="cat">Reference to the second category.</param>
/// <returns>The FeatureLayer.</returns>
private static IFeatureLayer GetFeatureLayer(out PolygonCategory cat)
{
// load layer with us states
ShapefileLayerProvider provider = new ShapefileLayerProvider();
var fl = (IFeatureLayer)provider.OpenLayer(Path.Combine(@"TestFiles", "50mil_us_states.shp"), false, null, null);
Assert.IsNotNull(fl);
// add two categories for testing category.SelectionEnabled
PolygonScheme scheme = new PolygonScheme();
scheme.ClearCategories();
scheme.AddCategory(new PolygonCategory(Color.LightBlue, Color.DarkBlue, 1)
{
FilterExpression = "[FIPS] >= 10",
LegendText = ">= 10"
});
cat = new PolygonCategory(Color.Pink, Color.DarkRed, 1)
{
FilterExpression = "[FIPS] < 10",
LegendText = "< 10"
};
scheme.AddCategory(cat);
fl.Symbology = scheme;
Assert.IsTrue(cat.SelectionEnabled, "Categories must be initialized with SelectionEnabled = true.");
return(fl);
}
private void menu_Click(object sender, EventArgs e)
{
FormContour Frm = new FormContour();
Frm.layers = App.Map.GetRasterLayers();
if (Frm.layers.GetLength(0) <= 0)
{
MessageBox.Show("No raster layer found!");
return;
}
if (Frm.ShowDialog() == DialogResult.OK)
{
IMapFeatureLayer fl = App.Map.Layers.Add(Frm.Contours);
fl.LegendText = Frm.LayerName + " - Contours";
int numlevs = Frm.lev.GetLength(0);
switch (Frm.contourtype)
{
case (Contour.ContourType.Line):
{
LineScheme ls = new LineScheme();
ls.Categories.Clear();
for (int i = 0; i < Frm.color.GetLength(0); i++)
{
LineCategory lc = new LineCategory(Frm.color[i], 2.0);
lc.FilterExpression = "[Value] = " + Frm.lev[i].ToString();
lc.LegendText = Frm.lev[i].ToString();
ls.AddCategory(lc);
}
fl.Symbology = ls;
}
break;
case (Contour.ContourType.Polygon):
{
PolygonScheme ps = new PolygonScheme();
ps.Categories.Clear();
for (int i = 0; i < Frm.color.GetLength(0); i++)
{
PolygonCategory pc = new PolygonCategory(Frm.color[i], Color.Transparent, 0);
pc.FilterExpression = "[Lev] = " + i.ToString();
pc.LegendText = Frm.lev[i].ToString() + " - " + Frm.lev[i + 1].ToString();
ps.AddCategory(pc);
}
fl.Symbology = ps;
}
break;
}
}
}
private void btnFilterByPopState_Click(object sender, EventArgs e)
{
//check the number of layers from map control
if (map1.Layers.Count > 0)
{
//Delacre a MapPolygonLayer
MapPolygonLayer stateLayer = default(MapPolygonLayer);
//Type cast the FirstLayer of MapControl to MapPolygonLayer
stateLayer = (MapPolygonLayer)map1.Layers[0];
//Check the MapPolygonLayer ( Make sure that it has a polygon layer)
if (stateLayer == null)
{
MessageBox.Show("The layer is not a polygon layer.");
}
else
{
//!!!-------------------- this line is necessary otherwise the code doesn't work------------------------!!!!!!!!!!!!!!!!!!!!
}
stateLayer.DataSet.FillAttributes();
//Create a new PolygonScheme
PolygonScheme scheme = new PolygonScheme();
//Create a new PolygonCategory
PolygonCategory category = new PolygonCategory(Color.Yellow, Color.Red, 1);
//Declare a filter string
//[POP1990],[STATE_NAME] are attributes from the attribute table of the given shape file.
string filter = "[POP1990] > 10000000 OR [STATE_NAME] = 'Idaho'";
//Set/Assign the filter expression to PolygonCategory
category.FilterExpression = filter;
//Set the Legend Text
category.LegendText = "population > 10 Million";
//Add the PolygonCategory in to the PolygonScheme
scheme.AddCategory(category);
//Set the scheme in to the MapPolygonLayer's symbology
stateLayer.Symbology = scheme;
}
else
{
MessageBox.Show("Please add a layer to the map.");
}
}
/// <summary>
/// Translates the given style as polygon style and adds it to the given polygon scheme.
/// </summary>
/// <param name="scheme">The scheme the style gets added to.</param>
/// <param name="style">The style that gets translated.</param>
private static void TranslatePolygonStyle(PolygonScheme scheme, string style)
{
if (string.IsNullOrWhiteSpace(style))
{
return;
}
var tools = GetToolNames(style);
Color col = Color.Black;
Color fillCol = Color.White;
double numWidth = 1;
foreach (var tool in tools)
{
switch (tool.Key)
{
case "PEN":
{
var myStyle = tool.Value.Substring(4);
col = GetColor(ref myStyle, Parameters.Color);
numWidth = GetWidth(ref myStyle);
break;
}
case "BRUSH":
{
var myStyle = tool.Value.Substring(6);
fillCol = GetColor(ref myStyle, Parameters.BrushForeColor);
break;
}
}
}
var cat = new PolygonCategory(fillCol, col, numWidth)
{
FilterExpression = $"[style] = '{style}'",
LegendText = style,
Symbolizer =
{
ScaleMode = ScaleMode.Simple,
Smoothing = false
}
};
scheme.AddCategory(cat);
}
private void ColorMap()
{
try
{
FeatureLayer fl = mainMap.Layers[0] as FeatureLayer;
PolygonCategoryCollection pcc = new PolygonCategoryCollection();
PolygonScheme myScheme = new PolygonScheme();
myScheme.Categories = new PolygonCategoryCollection();
string strrow = "";
int iRegionColor = 0;
foreach (BenMAPRollback brb in _monitorRollbackLine.BenMAPRollbacks)
{
if (brb.SelectRegions.Count != 0)
{
iRegionColor += brb.SelectRegions.Count;
}
}
foreach (BenMAPRollback brb in _monitorRollbackLine.BenMAPRollbacks)
{
if (brb.SelectRegions.Count != 0)
{
foreach (RowCol rc in brb.SelectRegions)
{
if (iRegionColor != dicMyColorIndex.Count)
{
if (strrow == "")
{
strrow = dicMyColorIndex[rc.Col + "," + rc.Row].ToString();
}
else
{
strrow += "," + dicMyColorIndex[rc.Col + "," + rc.Row].ToString();
}
}
PolygonCategory pcin = new PolygonCategory();
pcin.FilterExpression = string.Format("[{0}]={1} ", "MyColorIndex", dicMyColorIndex[rc.Col + "," + rc.Row].ToString());
pcin.Symbolizer.SetOutline(Color.Black, 1);
string[] strColor = brb.DrawingColor.Split(new char[] { ',' });
pcin.Symbolizer.SetFillColor(Color.FromArgb(Convert.ToInt32(strColor[0]), int.Parse(strColor[1]), int.Parse(strColor[2])));
myScheme.Categories.Add(pcin);
}
}
}
if (myScheme.Categories.Count > 0)
{
if (iRegionColor != dicMyColorIndex.Count)
{
PolygonCategory pcin = new PolygonCategory();
pcin.FilterExpression = string.Format("[{0}] not in({1})", "MyColorIndex", strrow);
pcin.Symbolizer.SetFillColor(Color.White);
pcin.Symbolizer.SetOutline(Color.Black, 1);
myScheme.Categories.Add(pcin);
}
(fl as IFeatureLayer).Symbology = myScheme;
}
}
catch (Exception ex)
{
Logger.LogError(ex);
}
}
private void MonitorRollbackSettings2_Load(object sender, EventArgs e)
{
try
{
if (CommonClass.GBenMAPGrid == null)
{
return;
}
mainMap.ProjectionModeReproject = ActionMode.Never;
mainMap.ProjectionModeDefine = ActionMode.Never;
if (_monitorRollbackLine.RollbackGrid is ShapefileGrid)
{
if (File.Exists(CommonClass.DataFilePath + @"\Data\Shapefiles\" + CommonClass.MainSetup.SetupName + "\\" + (_monitorRollbackLine.RollbackGrid as ShapefileGrid).ShapefileName + ".shp"))
{
mainMap.Layers.Add(CommonClass.DataFilePath + @"\Data\Shapefiles\" + CommonClass.MainSetup.SetupName + "\\" + (_monitorRollbackLine.RollbackGrid as ShapefileGrid).ShapefileName + ".shp");
}
}
else if (_monitorRollbackLine.RollbackGrid is RegularGrid)
{
if (File.Exists(CommonClass.DataFilePath + @"\Data\Shapefiles\" + CommonClass.MainSetup.SetupName + "\\" + (_monitorRollbackLine.RollbackGrid as RegularGrid).ShapefileName + ".shp"))
{
mainMap.Layers.Add(CommonClass.DataFilePath + @"\Data\Shapefiles\" + CommonClass.MainSetup.SetupName + "\\" + (_monitorRollbackLine.RollbackGrid as RegularGrid).ShapefileName + ".shp");
}
}
PolygonLayer playerRegion = mainMap.Layers[mainMap.Layers.Count - 1] as PolygonLayer;
playerRegion.DataSet.DataTable.Columns.Add("MyColorIndex", typeof(int));
for (int i = 0; i < playerRegion.DataSet.DataTable.Rows.Count; i++)
{
playerRegion.DataSet.DataTable.Rows[i]["MyColorIndex"] = i;
dicMyColorIndex.Add(Convert.ToInt32(playerRegion.DataSet.DataTable.Rows[i]["COL"]).ToString() + "," + Convert.ToInt32(playerRegion.DataSet.DataTable.Rows[i]["ROW"]).ToString(), i);
}
Color cRegion = Color.Transparent;
PolygonSymbolizer TransparentRegion = new PolygonSymbolizer(cRegion);
TransparentRegion.OutlineSymbolizer = new LineSymbolizer(Color.Black, 1); playerRegion.Symbolizer = TransparentRegion;
lstMonitorValues = DataSourceCommonClass.GetMonitorData(_monitorRollbackLine.GridType, _monitorRollbackLine.Pollutant, _monitorRollbackLine);
IFeatureSet fsPoints = new FeatureSet();
MonitorValue mv = null;
Feature feature = null;
List <DotSpatial.Topology.Coordinate> lstCoordinate = new List <DotSpatial.Topology.Coordinate>();
List <double> fsInter = new List <double>();
if (lstMonitorValues != null && lstMonitorValues.Count > 0)
{
PolygonScheme myScheme = new PolygonScheme();
PolygonCategory pcin = new PolygonCategory();
pcin.Symbolizer.SetFillColor(Color.Red);
myScheme.Categories.Add(pcin);
DotSpatial.Topology.Point point;
for (int i = 0; i < lstMonitorValues.Count; i++)
{
mv = lstMonitorValues[i];
point = new DotSpatial.Topology.Point(mv.Longitude, mv.Latitude);
feature = new Feature(point);
fsPoints.AddFeature(feature);
}
mainMap.Layers.Add(fsPoints);
}
}
catch (Exception ex)
{
Logger.LogError(ex);
}
}
/// <summary>
/// Deserializes the layer.
/// </summary>
/// <param name="layer">The layer.</param>
/// <param name="polyLayer">The poly layer.</param>
internal static void DeserializeLayer(dynamic layer, MapPolygonLayer polyLayer)
{
if (UseAlternateParser(layer))
{
DeserializeLayerAlternateVersion(layer.ShapefileProperties, polyLayer);
return;
}
var polySymbolizer = new PolygonSymbolizer();
var outlineColor = LegacyDeserializer.GetColor(layer.ShapeFileProperties["OutLineColor"]);
var outlineWidth = Convert.ToDouble(layer.ShapeFileProperties["LineOrPointSize"]);
polySymbolizer.SetOutline(outlineColor, outlineWidth);
if (Convert.ToBoolean(layer.ShapeFileProperties["DrawFill"]))
{
Color color = LegacyDeserializer.GetColor(layer.ShapeFileProperties["Color"]);
float transparency = Convert.ToSingle(layer.ShapeFileProperties["TransparencyPercent"]);
color = color.ToTransparent(transparency);
polySymbolizer.SetFillColor(color);
}
else
{
polySymbolizer.SetFillColor(Color.Transparent);
}
polyLayer.Symbolizer = polySymbolizer;
try
{
int fieldIndex = Convert.ToInt32(layer.ShapeFileProperties.Legend["FieldIndex"]);
// we have to clear the categories or the collection ends up with a default item
polyLayer.Symbology.Categories.Clear();
foreach (var colorBreak in layer.ShapeFileProperties.Legend.ColorBreaks.Elements())
{
PolygonCategory category;
string startValue = colorBreak["StartValue"];
string endValue = colorBreak["EndValue"];
if (startValue == endValue)
{
category = new PolygonCategory(LegacyDeserializer.GetColor(colorBreak["StartColor"]), LegacyDeserializer.GetColor(colorBreak["StartColor"]), 0);
category.FilterExpression = String.Format("[{0}] = '{1}'", polyLayer.DataSet.DataTable.Columns[fieldIndex].ColumnName, startValue);
category.LegendText = startValue;
}
else
{
category = new PolygonCategory(LegacyDeserializer.GetColor(colorBreak["StartColor"]), LegacyDeserializer.GetColor(colorBreak["EndColor"]), 0, GradientType.Linear, outlineColor, outlineWidth);
category.FilterExpression = String.Format("'{2}' >= [{0}] >= '{1}'", polyLayer.DataSet.DataTable.Columns[fieldIndex].ColumnName, startValue, endValue);
category.LegendText = String.Format("{0} - {1}", startValue, endValue);
}
category.LegendText = startValue;
category.LegendItemVisible = Convert.ToBoolean(colorBreak["Visible"]);
polyLayer.Symbology.AddCategory(category);
}
// it took too a lot of work to figure out that we would need to do this...
polyLayer.ApplyScheme(polyLayer.Symbology);
}
catch (RuntimeBinderException)
{
// ignore and continue.
// this means the legend is not available.
}
}
public void SelectionTest()
{
IMap map = new Map();
// load layer with us states
IMapLayer ml = map.AddLayer(Path.Combine(_folder, "50mil_us_states.shp"));
IFeatureLayer fl = ml as IFeatureLayer;
Assert.IsNotNull(fl);
// add two categories for testing category.SelectionEnabled
PolygonScheme scheme = new();
scheme.ClearCategories();
scheme.AddCategory(new PolygonCategory(Color.LightBlue, Color.DarkBlue, 1)
{
FilterExpression = "[FIPS] >= 10",
LegendText = ">= 10"
});
var cat = new PolygonCategory(Color.Pink, Color.DarkRed, 1)
{
FilterExpression = "[FIPS] < 10",
LegendText = "< 10"
};
scheme.AddCategory(cat);
fl.Symbology = scheme;
Assert.IsTrue(cat.SelectionEnabled, "Categories must be initialized with SelectionEnabled = true.");
// load the second layer for testing the layers SelectionEnabled property
IMapLayer ml2 = map.AddLayer(Path.Combine(_folder, "50m_admin_0_countries.shp"));
ml2.SelectionEnabled = false;
IFeatureLayer fl2 = ml2 as IFeatureLayer;
Assert.IsNotNull(fl2);
// select the first area
Envelope e = new(-72, -66, 40, 48);
Assert.IsTrue(map.Select(e, e, ClearStates.False));
Assert.AreEqual(7, fl.Selection.Count, "Error selecting 50mil_us_states");
Assert.AreEqual(0, fl2.Selection.Count, "Error selecting 50m_admin_0_countries");
// invert a slighly larger area, ignoring the features of the second category
cat.SelectionEnabled = false;
Envelope e2 = new(-78, -66, 40, 48);
Assert.IsTrue(map.InvertSelection(e2, e2));
Assert.AreEqual(4, fl.Selection.Count, "Error inverting selection 50mil_us_states");
Assert.AreEqual(0, fl2.Selection.Count, "Error inverting selection 50m_admin_0_countries");
// add another area allowing the second layer to be selected too
ml2.SelectionEnabled = true;
Envelope e3 = new(-89, -77, 24, 33);
Assert.IsTrue(map.Select(e3, e3, ClearStates.False));
Assert.AreEqual(9, fl.Selection.Count, "Error adding to selection 50mil_us_states");
Assert.AreEqual(2, fl2.Selection.Count, "Error adding to selection 50m_admin_0_countries");
ml2.SelectionEnabled = false;
// unselect the whole area ignoring the second layer and the deactivated category
Envelope e4 = new(-89, -66, 24, 48);
Assert.IsTrue(map.UnSelect(e4, e4));
Assert.AreEqual(1, fl.Selection.Count, "Error unselecting 50mil_us_states");
Assert.AreEqual(2, fl2.Selection.Count, "Error unselecting 50m_admin_0_countries");
}
/// <summary>
/// Translates the style strings from the list to DotSpatial style categories and adds them to the given layer.
/// </summary>
/// <param name="layer">The layer the styles get added to.</param>
/// <param name="styles">The style strings that should get translated.</param>
public static void TranslateStyles(IMapFeatureLayer layer, IList <string> styles)
{
var featureType = layer.DataSet.FeatureType;
switch (featureType)
{
case FeatureType.MultiPoint:
case FeatureType.Point:
{
// create the scheme
var scheme = new PointScheme();
scheme.Categories.Clear();
scheme.EditorSettings.ClassificationType = ClassificationType.UniqueValues;
scheme.EditorSettings.FieldName = "style";
scheme.LegendText = "Point";
// add the default category
var cat = new PointCategory(Color.Black, Symbology.PointShape.Rectangle, 5)
{
LegendText = "default",
Symbolizer =
{
ScaleMode = ScaleMode.Simple,
Smoothing = false
}
};
scheme.AddCategory(cat);
var labelLayer = new MapLabelLayer();
labelLayer.Symbology.Categories.Clear();
bool needsLabels = styles.Any(_ => !string.IsNullOrWhiteSpace(_) && _.StartsWith("LABEL"));
foreach (var style in styles)
{
TranslatePointStyle(scheme, labelLayer.Symbology, style);
}
// assign the scheme
layer.Symbology = scheme;
// assign the label layer if needed
if (needsLabels)
{
layer.LabelLayer = labelLayer;
layer.ShowLabels = true;
layer.LabelLayer.CreateLabels();
}
layer.DataSet.UpdateExtent();
layer.DataSet.InitializeVertices();
layer.AssignFastDrawnStates();
break;
}
case FeatureType.Line:
{
// create the scheme
var scheme = new LineScheme();
scheme.Categories.Clear();
scheme.EditorSettings.ClassificationType = ClassificationType.UniqueValues;
scheme.EditorSettings.FieldName = "style";
scheme.LegendText = "Line";
// add the default category
var cat = new LineCategory(Color.Black, 1)
{
LegendText = "default",
Symbolizer =
{
ScaleMode = ScaleMode.Simple,
Smoothing = false
}
};
scheme.AddCategory(cat);
// add the categories from the file
foreach (var style in styles)
{
TranslateLineStyle(scheme, style);
}
// assign the scheme
layer.Symbology = scheme;
layer.DataSet.UpdateExtent();
layer.DataSet.InitializeVertices();
layer.AssignFastDrawnStates();
break;
}
case FeatureType.Polygon:
{
// create the scheme
var scheme = new PolygonScheme();
scheme.Categories.Clear();
scheme.EditorSettings.ClassificationType = ClassificationType.UniqueValues;
scheme.EditorSettings.FieldName = "style";
scheme.LegendText = "Polygon";
// add the default category
var cat = new PolygonCategory(Color.GhostWhite, Color.Black, 1)
{
LegendText = "default",
Symbolizer =
{
ScaleMode = ScaleMode.Simple,
Smoothing = false
}
};
scheme.AddCategory(cat);
// add the categories from the file
foreach (var style in styles)
{
TranslatePolygonStyle(scheme, style);
}
// assign the scheme
layer.Symbology = scheme;
layer.DataSet.UpdateExtent();
layer.DataSet.InitializeVertices();
layer.AssignFastDrawnStates();
break;
}
default: throw new ArgumentOutOfRangeException(nameof(featureType), featureType, null);
}
}
private bool DrawMonitorMap()
{
try
{
IFeatureSet fsPoints = new FeatureSet();
fsPoints.DataTable.Columns.Add("Name");
fsPoints.DataTable.Columns.Add("Description");
fsPoints.DataTable.Columns.Add("Longitude");
fsPoints.DataTable.Columns.Add("Latitude");
string[] tmps = new string[_lstMonitorPoints[0].dicMetricValues.Count];
_lstMonitorPoints[0].dicMetricValues.Keys.CopyTo(tmps, 0);
for (int i = 0; i < tmps.Length; i++)
{
fsPoints.DataTable.Columns.Add(tmps[i]);
}
MonitorValue mv = null;
Feature feature = null;
List <Coordinate> lstCoordinate = new List <Coordinate>();
List <double> fsInter = new List <double>();
mainMap.Layers.Clear();
mainMap.ProjectionModeReproject = ActionMode.Never;
mainMap.ProjectionModeDefine = ActionMode.Never;
mainMap.Layers.Clear();
if (File.Exists(this._gridShapeFile))
{
mainMap.Layers.Add(this._gridShapeFile);
}
if (this._lstMonitorPoints != null && this.LstMonitorPoints.Count > 0)
{
PolygonScheme myScheme = new PolygonScheme();
PolygonCategory pcin = new PolygonCategory();
pcin.Symbolizer.SetFillColor(Color.Red);
myScheme.Categories.Add(pcin);
DotSpatial.Topology.Point point;
for (int i = 0; i < LstMonitorPoints.Count; i++)
{
mv = LstMonitorPoints[i];
point = new DotSpatial.Topology.Point(mv.Longitude, mv.Latitude);
feature = new Feature(point);
fsPoints.AddFeature(feature);
fsPoints.DataTable.Rows[i]["Name"] = mv.MonitorName;
fsPoints.DataTable.Rows[i]["Latitude"] = mv.Latitude;
fsPoints.DataTable.Rows[i]["Longitude"] = mv.Longitude;
for (int col = 0; col < tmps.Length; col++)
{
fsPoints.DataTable.Rows[i][tmps[col]] = mv.dicMetricValues[tmps[col]];
}
}
mainMap.Layers.Add(fsPoints);
mainMap.Layers[0].LegendText = "Air quality grid";
mainMap.Layers[1].LegendText = "Monitors";
}
PolygonLayer player = mainMap.Layers[0] as PolygonLayer;
float f = 0.9f;
Color c = Color.Transparent;
PolygonSymbolizer Transparent = new PolygonSymbolizer(c);
Transparent.OutlineSymbolizer = new LineSymbolizer(Color.DarkBlue, 1); player.Symbolizer = Transparent;
LayerObject = null;
return(true);
}
catch (Exception ex)
{
Logger.LogError(ex);
return(false);
}
}
private void MenuClick(object sender, EventArgs e)
{
using (FormContour frm = new FormContour())
{
frm.Layers = App.Map.GetRasterLayers();
if (frm.Layers.GetLength(0) <= 0)
{
MessageBox.Show(Resources.NoRasterLayerFound);
return;
}
if (frm.ShowDialog() != DialogResult.OK)
{
return;
}
IMapFeatureLayer fl = App.Map.Layers.Add(frm.Contours);
fl.LegendText = frm.LayerName + " - Contours";
int numlevs = frm.Lev.GetLength(0);
switch (frm.Contourtype)
{
case Contour.ContourType.Line:
{
LineScheme ls = new LineScheme();
ls.Categories.Clear();
for (int i = 0; i < frm.Color.GetLength(0); i++)
{
LineCategory lc = new LineCategory(frm.Color[i], 2.0)
{
FilterExpression = "[Value] = " + frm.Lev[i],
LegendText = frm.Lev[i].ToString(CultureInfo.InvariantCulture)
};
ls.AddCategory(lc);
}
fl.Symbology = ls;
}
break;
case Contour.ContourType.Polygon:
{
PolygonScheme ps = new PolygonScheme();
ps.Categories.Clear();
for (int i = 0; i < frm.Color.GetLength(0); i++)
{
PolygonCategory pc = new PolygonCategory(frm.Color[i], Color.Transparent, 0)
{
FilterExpression = "[Lev] = " + i,
LegendText = frm.Lev[i] + " - " + frm.Lev[i + 1]
};
ps.AddCategory(pc);
}
fl.Symbology = ps;
}
break;
}
}
}
//-------------------------------------------------------
public MapPolygonLayer AddFieldLayer(string Fieldname)
{
MapPolygonLayer MyLayer = null;
if (MapDataTable != null)
{
if (MapDataTable.Columns.Contains(Fieldname))
{
try
{
DataColumn DC = MapDataTable.Columns[Fieldname];
MyLayer = AddProviderShapeFile(Fieldname); //(MapPolygonLayer)ProviderMap.AddLayer(DataPath + ShapeFilename);
if (MyLayer == null)
{
MessageBox.Show("The Base ShapeFile is not a polygon layer.");
}
else
{
// Get the years
string yrfield = WaterSimManager_DB.rdbfSimYear;
// MyLayer.DataSet.FillAttributes();
DataTable LayerDT = MyLayer.DataSet.DataTable;
DataColumn AddColumn = new DataColumn(DC.ColumnName, DC.DataType);
LayerDT.Columns.Add(AddColumn);
foreach (DataRow DR in LayerDT.Rows)
{
Boolean found = false;
string pfcode = DR["Provider"].ToString().Trim(); // Get the Provider Field code for this SHape File Record
// find this code in Scenario DataTable
foreach (DataRow ScnDR in MapDataTable.Rows)
{
if (ScnDR[yrfield].ToString().Trim() == MapTargetYear)
{
string Scnpfcode = ScnDR[WaterSimManager_DB.rdbfProviderCode].ToString().Trim(); // "PRVDCODE"
if (pfcode == Scnpfcode)
{
DR[Fieldname] = ScnDR[Fieldname].ToString();
found = true;
break;
}
if (!found)
{
if (DC.DataType == System.Type.GetType("System.String"))
{
DR[Fieldname] = "";
}
else
{
DR[Fieldname] = 0;
}
}
} //= provider
} // = target year
}
//MyLayer.DataSet.FillAttributes();
if (DC.DataType == System.Type.GetType("System.String"))
{
PolygonScheme FldScheme = new PolygonScheme();
FldScheme.EditorSettings.ClassificationType = ClassificationType.UniqueValues;
////Set the UniqueValue field name
FldScheme.EditorSettings.FieldName = Fieldname;
// Create Catagories based on data
FldScheme.CreateCategories(LayerDT);
MyLayer.Symbology = FldScheme;
}
else
{
PolygonScheme FldScheme = new PolygonScheme();
FldScheme.EditorSettings.ClassificationType = ClassificationType.Quantities;
FldScheme.EditorSettings.IntervalMethod = IntervalMethod.StandardDeviation;
FldScheme.EditorSettings.NumBreaks = 8;
FldScheme.EditorSettings.FieldName = Fieldname;
FldScheme.AppearsInLegend = true;
FldScheme.CreateCategories(LayerDT);
PolygonCategory NullCat = new PolygonCategory(Color.WhiteSmoke, Color.DarkBlue, 1);
NullCat.FilterExpression = "[" + Fieldname + "] = NULL";
NullCat.LegendText = "[" + Fieldname + "] = NULL";
FldScheme.AddCategory(NullCat);
MyLayer.Symbology = FldScheme;
}
}
}
catch (Exception e)
{
MessageBox.Show("Error Loading Shape File:[ " + DataPath + ShapeFilename + "] :" + e.Message);
}
}
}
return(MyLayer);
}
