public void Render(LittleSharpRenderEngine engine, Graphics graphics, IPolygon polygon, IAreaStyle style)
{
if (polygon == null || style == null)
{
return;
}
System.Drawing.Drawing2D.GraphicsPath gp = new System.Drawing.Drawing2D.GraphicsPath();
gp.AddPolygon(RenderUtil.CoordToPoint(polygon.Shell.Coordinates));
foreach (ILinearRing l in polygon.Holes)
{
gp.AddPolygon(RenderUtil.CoordToPoint(l.Coordinates));
}
gp.CloseFigure();
if (style.Fill != null)
{
RenderUtil.RenderFill(engine, graphics, gp, style.Fill);
}
if (style.Outline != null)
{
RenderUtil.RenderOutline(engine, graphics, gp, style.Outline);
}
}
public void Render(LittleSharpRenderEngine engine, Graphics graphics, ILineString line, ILineStyle style)
{
if (line == null || style == null)
{
return;
}
System.Drawing.Drawing2D.GraphicsPath gp = new System.Drawing.Drawing2D.GraphicsPath();
//TODO: Does not seems to add a single long line, but multiple line segments
gp.AddLines(RenderUtil.CoordToPoint(line.Coordinates));
if (style.Outlines != null)
{
foreach (IOutline linestyle in style.Outlines)
{
RenderUtil.RenderOutline(engine, graphics, gp, linestyle);
}
}
}
public void Render(LittleSharpRenderEngine engine, Graphics graphics, IPoint point, IPointStyle style)
{
if (point == null || style == null)
{
return;
}
if (style.Type == global::LittleSharpRenderEngine.Style.Point.PointType.Symbol)
{
return;
}
else
{
int w = style.Size.Width / 2;
int h = style.Size.Height / 2;
System.Drawing.Point[] points;
switch (style.Type)
{
case global::LittleSharpRenderEngine.Style.Point.PointType.Circle:
int pc = (int)Math.Max(8, Math.Log10(Math.Max(w, h)));
points = new System.Drawing.Point[pc + 1];
double fr = (2 * Math.PI) / pc;
for (int i = 0; i < pc; i++)
{
points[i] = new System.Drawing.Point((int)(Math.Cos(fr * i) * w + point.X), (int)(Math.Sin(fr * i) * h + point.Y));
}
points[pc] = points[0];
break;
case global::LittleSharpRenderEngine.Style.Point.PointType.Square:
points = new System.Drawing.Point[]
{
new System.Drawing.Point((int)point.X - w, (int)point.Y - h),
new System.Drawing.Point((int)point.X + w, (int)point.Y - h),
new System.Drawing.Point((int)point.X + w, (int)point.Y + h),
new System.Drawing.Point((int)point.X - w, (int)point.Y + h),
new System.Drawing.Point((int)point.X - w, (int)point.Y - h),
};
break;
case global::LittleSharpRenderEngine.Style.Point.PointType.Triangle:
points = new System.Drawing.Point[]
{
new System.Drawing.Point((int)point.X - w, (int)point.Y + h),
new System.Drawing.Point((int)point.X, (int)point.Y - h),
new System.Drawing.Point((int)point.X + w, (int)point.Y + h),
new System.Drawing.Point((int)point.X - w, (int)point.Y + h),
};
break;
default:
return;
}
//TODO: Apply rotation
if (style.Type != global::LittleSharpRenderEngine.Style.Point.PointType.Circle)
{
}
//Apply offset
for (int i = 0; i < points.Length; i++)
{
points[i].X += (w - style.Center.X);
points[i].Y += (h - style.Center.Y);
}
System.Drawing.Drawing2D.GraphicsPath gp = new System.Drawing.Drawing2D.GraphicsPath();
gp.AddPolygon(points);
gp.CloseFigure();
if (style.Fill != null)
{
RenderUtil.RenderFill(engine, graphics, gp, style.Fill);
}
if (style.Outline != null)
{
RenderUtil.RenderOutline(engine, graphics, gp, style.Outline);
}
}
}