public DragInteractiveOverlayAdvanced()
: base()
{
ExistingControlPointsLayer.Open();
ExistingControlPointsLayer.Columns.Add(new FeatureSourceColumn("nodetype"));
ExistingControlPointsLayer.Close();
}
//Overrides the DrawCore function.
protected override void DrawCore(GeoCanvas canvas)
{
//Draws the Edit Shapes as default.
Collection <SimpleCandidate> labelsInAllLayers = new Collection <SimpleCandidate>();
EditShapesLayer.Open();
EditShapesLayer.Draw(canvas, labelsInAllLayers);
canvas.Flush();
//Draws the control points.
ExistingControlPointsLayer.Open();
Collection <Feature> controlPoints = ExistingControlPointsLayer.FeatureSource.GetAllFeatures(ReturningColumnsType.AllColumns);
//Loops thru the control points.
foreach (Feature feature in controlPoints)
{
//Looks at the value of "state" to draw the control point as dragged or not.
if (feature.ColumnValues["state"] != "selected")
{
Feature[] features = new Feature[1] {
feature
};
controlPointStyle.Draw(features, canvas, labelsInAllLayers, labelsInAllLayers);
}
else
{
Feature[] features = new Feature[1] {
feature
};
draggedControlPointStyle.Draw(features, canvas, labelsInAllLayers, labelsInAllLayers);
}
}
}
public SelectVerticesEditInteractiveOverlay()
: base()
{
this.CanAddVertex = false;
this.CanDrag = true;
this.CanRemoveVertex = false;
this.CanResize = false;
this.CanRotate = false;
ExistingControlPointsLayer.Open();
ExistingControlPointsLayer.Columns.Add(new FeatureSourceColumn("IsSelected"));
ExistingControlPointsLayer.Close();
existingFeatures = new Collection <Feature>();
}
//Overrides the DrawCore function.
protected override void DrawCore(GeoCanvas canvas)
{
//Draws the Edit Shapes as default.
Collection <SimpleCandidate> labelsInAllLayers = new Collection <SimpleCandidate>();
EditShapesLayer.Open();
EditShapesLayer.Draw(canvas, labelsInAllLayers);
canvas.Flush();
//Draws the control points.
ExistingControlPointsLayer.Open();
Collection <Feature> controlPoints = ExistingControlPointsLayer.FeatureSource.GetAllFeatures(ReturningColumnsType.AllColumns);
//Loops thru the control points.
foreach (Feature feature in controlPoints)
{
//Looks at the value of "state" to draw the control point as dragged or not.
if (feature.ColumnValues["state"] != "selected")
{
Feature[] features = new Feature[1] {
feature
};
controlPointStyle.Draw(features, canvas, labelsInAllLayers, labelsInAllLayers);
}
else
{
Feature[] features = new Feature[1] {
feature
};
draggedControlPointStyle.Draw(features, canvas, labelsInAllLayers, labelsInAllLayers);
PointShape pointShape = feature.GetShape() as PointShape;
PointShape closestPointShape = referenceShape.GetClosestPointTo(pointShape, GeographyUnit.DecimalDegree);
//Draws the closest point on the reference shape and the distance to it from the dragged control point.
if (closestPointShape != null)
{
double Dist = System.Math.Round(closestPointShape.GetDistanceTo(pointShape, GeographyUnit.DecimalDegree, DistanceUnit.Meter));
ScreenPointF ScreenPointF = ExtentHelper.ToScreenCoordinate(canvas.CurrentWorldExtent, pointShape, canvas.Width, canvas.Height);
canvas.DrawTextWithScreenCoordinate(System.Convert.ToString(Dist) + " m", new GeoFont("Arial", 12, DrawingFontStyles.Bold), new GeoSolidBrush(GeoColor.StandardColors.Black),
ScreenPointF.X + 35, ScreenPointF.Y, DrawingLevel.LabelLevel);
canvas.DrawEllipse(closestPointShape, 12, 12, new GeoSolidBrush(GeoColor.StandardColors.Purple), DrawingLevel.LevelFour);
}
}
}
}
//Overrides the DrawCore function.
protected override void DrawCore(GeoCanvas canvas)
{
if (EditShapesLayer.InternalFeatures.Count > 1)
{
throw new NotImplementedException("Only allow one shape to be editing.");
}
//Draws the Edit Shapes as default.
Collection <SimpleCandidate> labelsInAllLayers = new Collection <SimpleCandidate>();
EditShapesLayer.Open();
EditShapesLayer.Draw(canvas, labelsInAllLayers);
canvas.Flush();
ExistingControlPointsLayer.Open();
Collection <Feature> ExistingControlPoints = ExistingControlPointsLayer.QueryTools.GetAllFeatures(new string[1] {
"IsSelected"
});
ExistingControlPointsLayer.Close();
//Loops thru the control points.
for (int i = ExistingControlPoints.Count - 1; i >= 0; i--)
{
Feature feature = ExistingControlPoints[i];
if (feature.ColumnValues.ContainsKey("IsSelected") && feature.ColumnValues["IsSelected"] == "true")
{
Feature[] features = new Feature[1] {
feature
};
selectedControlPointStyle.Draw(features, canvas, labelsInAllLayers, labelsInAllLayers);
}
else
{
Feature[] features = new Feature[1] {
feature
};
controlPointStyle.Draw(features, canvas, labelsInAllLayers, labelsInAllLayers);
}
}
}
//Overrides the DrawCore function.
protected override void DrawCore(GeoCanvas canvas)
{
//Draws the Edit Shapes as default.
Collection <SimpleCandidate> labelsInAllLayers = new Collection <SimpleCandidate>();
EditShapesLayer.Open();
EditShapesLayer.Draw(canvas, labelsInAllLayers);
canvas.Flush();
//Gets the control points and draw its features according to the value of "IsSelected" column.
this.ExistingControlPointsLayer.Open();
Collection <Feature> ExistingControlPoints = this.ExistingControlPointsLayer.QueryTools.GetAllFeatures(new string[1] {
"IsSelected"
});
ExistingControlPointsLayer.Close();
//Loops thru the control points features and check for the value of "IsSelected" collumn.
foreach (Feature feature in ExistingControlPoints)
{
if (feature.ColumnValues.ContainsKey("IsSelected") && feature.ColumnValues["IsSelected"] == "true")
{
Feature[] features = new Feature[1] {
feature
};
selectedControlPointStyle.Draw(features, canvas, labelsInAllLayers, labelsInAllLayers);
}
else
{
Feature[] features = new Feature[1] {
feature
};
controlPointStyle.Draw(features, canvas, labelsInAllLayers, labelsInAllLayers);
}
}
}
//Overrides the DrawCore function to draw the Edit Layers, the vertices and tolerance ellipses of layer to snap to,
//and the control points.
protected override void DrawCore(GeoCanvas canvas)
{
//Sets the geography Unit used in FindNearestSnappingPoint function
geographyUnit = canvas.MapUnit;
currentWorldExtent = canvas.CurrentWorldExtent;
mapWidth = canvas.Width;
mapHeight = canvas.Height;
//Draws the Edit Shapes as default.
Collection <SimpleCandidate> labelsInAllLayers = new Collection <SimpleCandidate>();
EditShapesLayer.Open();
EditShapesLayer.Draw(canvas, labelsInAllLayers);
canvas.Flush();
//Draw the vertices and tolerance ellipses of layer to snap to.
toSnapInMemoryFeatureLayer.Open();
Collection <Feature> toSnapPoints = toSnapInMemoryFeatureLayer.FeatureSource.GetAllFeatures(ReturningColumnsType.AllColumns);
toSnapInMemoryFeatureLayer.Close();
foreach (Feature feature in toSnapPoints)
{
PolygonShape polygonShape = (PolygonShape)feature.GetShape();
foreach (Vertex vertex in polygonShape.OuterRing.Vertices)
{
//Draws the vertex.
PointShape pointShape = new PointShape(vertex);
canvas.DrawEllipse(pointShape, 5, 5, new GeoSolidBrush(GeoColor.StandardColors.Black), DrawingLevel.LevelOne);
//Draws the tolerance ellipse.
if (toleranceType == ToleranceCoordinates.Screen)
{
ScreenPointF screenPointF = ExtentHelper.ToScreenCoordinate(canvas.CurrentWorldExtent, pointShape, canvas.Width, canvas.Height);
canvas.DrawEllipse(screenPointF, tolerance * 2, tolerance * 2, new GeoPen(GeoColor.StandardColors.Black), new GeoSolidBrush(), DrawingLevel.LevelFour, 0, 0, PenBrushDrawingOrder.PenFirst);
}
else
{
EllipseShape ellipseShape = new EllipseShape(pointShape, tolerance, canvas.MapUnit, toleranceUnit);
canvas.DrawArea(ellipseShape, new GeoPen(GeoColor.StandardColors.Black), DrawingLevel.LevelOne);
}
}
}
//Draws the control points.
ExistingControlPointsLayer.Open();
Collection <Feature> controlPoints = ExistingControlPointsLayer.FeatureSource.GetAllFeatures(ReturningColumnsType.AllColumns);
////Loops thru the control points.
foreach (Feature feature in controlPoints)
{
//Looks at the value of "state" to draw the control point as dragged or not.
Feature[] features = new Feature[1] {
feature
};
controlPointStyle.Draw(features, canvas, labelsInAllLayers, labelsInAllLayers);
}
foreach (Feature feature in SelectedControlPointLayer.InternalFeatures)
{
Feature[] features = new Feature[1] {
feature
};
draggedControlPointStyle.Draw(features, canvas, labelsInAllLayers, labelsInAllLayers);
}
}
