public static void SetGraphTransform(GeometryGraph geometryGraph, System.Drawing.Rectangle rectangle, Graphics graphics)
{
RectangleF clientRectangle = rectangle;
var gr = geometryGraph.BoundingBox;
if (clientRectangle.Height > 1 && clientRectangle.Width > 1)
{
var scale = Math.Min(clientRectangle.Width * 0.9 / gr.Width, clientRectangle.Height * 0.9 / gr.Height);
var g0 = (gr.Left + gr.Right) / 2;
var g1 = (gr.Top + gr.Bottom) / 2;
var c0 = (clientRectangle.Left + clientRectangle.Right) / 2;
var c1 = (clientRectangle.Top + clientRectangle.Bottom) / 2;
var dx = c0 - scale * g0;
var dy = c1 - scale * g1;
/*
* //instead of setting transormation for graphics it is possible to transform the geometry graph, just to test that GeometryGraph.Transform() works
*
* var planeTransformation=new PlaneTransformation(scale,0,dx, 0, scale, dy);
* geometryGraph.Transform(planeTransformation);
*/
graphics.Transform = new Matrix((float)scale, 0, 0, (float)scale, (float)dx, (float)dy);
}
}
public static void DrawFromGraph(System.Drawing.Rectangle clientRectangle, GeometryGraph geometryGraph, Graphics graphics)
{
SetGraphTransform(geometryGraph, clientRectangle, graphics);
var pen = new Pen(Brushes.Black);
DrawNodes(geometryGraph, pen, graphics);
DrawEdges(geometryGraph, pen, graphics);
}
