private void AddPoint(WriteableBitmap context, SqlGeometry point, Func <Point, Point> transform, int border, int fill, ImageSource imageSymbol, sb.Primitives.Geometry <sb.Primitives.Point> geometrySymbol)
{
var center = transform(point.AsWpfPoint()).AsPoint();
if (geometrySymbol != null)
{
GeometryHelper.Transform(context, geometrySymbol, center, border, fill);
}
else if (imageSymbol != null)
{
throw new NotImplementedException();
}
else
{
context.DrawEllipseCentered((int)center.X, (int)center.Y, pointSize, pointSize, border);
}
}
//int intBorderColor;
//int intFillColor;
public WriteableBitmap ParseSqlGeometry(List <SqlGeometry> geometries, Func <Point, Point> transform, int width, int height, Color border, Color fill, ImageSource pointSymbol = null, sb.Primitives.Geometry <sb.Primitives.Point> symbol = null)
{
//int? intBorderColor = border.HasValue ? WriteableBitmapExtensions.ConvertColor(border.Value) : (int?)null;
//int? intFillColor = fill.HasValue ? WriteableBitmapExtensions.ConvertColor(fill.Value) : (int?)null;
int intBorderColor = WriteableBitmapExtensions.ConvertColor(border);
int intFillColor = WriteableBitmapExtensions.ConvertColor(fill);
WriteableBitmap result = new WriteableBitmap(width, height, 96, 96, PixelFormats.Pbgra32, null);
if (geometries != null)
{
using (result.GetBitmapContext())
{
foreach (SqlGeometry item in geometries)
{
AddGeometry(result, item, transform, intBorderColor, intFillColor, pointSymbol, symbol);
}
}
}
//result.Freeze();
return(result);
}
private int AddGeometry(WriteableBitmap context, SqlGeometry geometry, Func <Point, Point> transform, int border, int fill, ImageSource imageSymbol, sb.Primitives.Geometry <sb.Primitives.Point> geometrySymbol)
{
if (geometry.IsNotValidOrEmpty())
{
return(1);
}
var type = geometry.GetOpenGisType();
switch (type)
{
case OpenGisGeometryType.Point:
AddPoint(context, geometry, transform, border, fill, imageSymbol, geometrySymbol);
break;
case OpenGisGeometryType.LineString:
AddLineString(context, geometry, transform, border, fill);
break;
case OpenGisGeometryType.Polygon:
AddPolygon(context, geometry, transform, border, fill);
break;
case OpenGisGeometryType.MultiPoint:
AddMultiPoint(context, geometry, transform, border, fill, imageSymbol, geometrySymbol);
break;
case OpenGisGeometryType.MultiLineString:
AddMultiLineString(context, geometry, transform, border, fill);
break;
case OpenGisGeometryType.MultiPolygon:
AddMultiPolygon(context, geometry, transform, border, fill);
break;
case OpenGisGeometryType.GeometryCollection:
case OpenGisGeometryType.CircularString:
case OpenGisGeometryType.CompoundCurve:
case OpenGisGeometryType.CurvePolygon:
default:
break;
}
return(0);
}
private void AddMultiPoint(WriteableBitmap context, SqlGeometry multiPoint, Func <Point, Point> transform, int border, int fill, ImageSource imageSymbol, sb.Primitives.Geometry <sb.Primitives.Point> geometrySymbol)
{
int numberOfPoints = multiPoint.STNumGeometries().Value;
for (int i = 0; i < numberOfPoints; i++)
{
var point = multiPoint.STGeometryN(i + 1);
if (point.IsNotValidOrEmpty())
{
continue;
}
AddPoint(context, point, transform, border, fill, imageSymbol, geometrySymbol);
}
}
