private void drawIntersection(Shape shape, ref Bitmap bitmap, Color color)
{
Graphics gfx = Graphics.FromImage(bitmap);
Brush brush = new SolidBrush(color);
if (!Single.IsInfinity(xScale) && !Single.IsInfinity(yScale))
{
int l = 0;
for (int i = 0; i < shape.intersectingPolygons.GetLength(0); ++i)
{
for (int j = 0; j < shape.intersectingPolygons.GetLength(1); ++j, ++l)
{
if (shape.intersectingPolygons[i, j] != null && shape.intersectingPolygons[i, j].Length != 0)
{
DynamicPolygon polygon = shape.intersectingPolygons[i, j];
Point[] points = new Point[polygon.Length];
for (int k = 0; k < polygon.Length; ++k)
{
points[k] = worldToScreenCoordinates(polygon[k], bitmap);
}
gfx.FillPolygon(brush, points);
}
}
}
}
}
public DynamicGrid(Grid grid)
: base(grid)
{
gridIntersections = new Dictionary <double2, int>();
int nColumns = (int)Math.Ceiling((mbr.xMax - mbr.xMin - double2.Tolerance) / xRes);
int nRows = (int)Math.Ceiling((mbr.yMax - mbr.yMin - double2.Tolerance) / yRes) + 1;
gridPolygons = new DynamicPolygon[nColumns, nRows];
for (int i = 0; i < nColumns; ++i)
{
for (int j = 0; j < nRows; ++j)
{
gridPolygons[i, j] = new DynamicPolygon();
gridPolygons[i, j][0] = new double2(mbr.xMin + ((i) * xRes), mbr.yMax - ((j) * yRes));
gridPolygons[i, j][1] = new double2(mbr.xMin + ((i + 1) * xRes), mbr.yMax - ((j) * yRes));
gridPolygons[i, j][2] = new double2(mbr.xMin + ((i + 1) * xRes), mbr.yMax - ((j + 1) * yRes));
gridPolygons[i, j][3] = new double2(mbr.xMin + ((i) * xRes), mbr.yMax - ((j + 1) * yRes));
}
}
intersectionList = new IntersectionList();
}