static void ZBitmap_Executing(object sender, EventArgs e)
{
Window activeWindow = Window.ActiveWindow;
IDesignBody boxIDesBody = activeWindow.GetAllSelectedIDesignBodies().FirstOrDefault();
if (boxIDesBody == null)
{
return;
}
SaveFileDialog dialog = new SaveFileDialog();
dialog.Filter = "PNG Files (*.png)|*.png";
DialogResult result = dialog.ShowDialog();
if (result != DialogResult.OK)
{
return;
}
string fileName = dialog.FileName;
Box box = boxIDesBody.GetBoundingBox(Matrix.Identity);
int xCount = (int)(box.Size.X / resolution);
int yCount = (int)(box.Size.Y / resolution);
double min = box.MinCorner.Z;
double max = box.MaxCorner.Z;
System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(xCount, yCount);
for (int i = 0; i < xCount; i++)
{
double x = (double)i * resolution;
for (int j = 0; j < yCount; j++)
{
double y = (double)j * resolution;
CurveSegment ray = CurveSegment.Create(
Line.Create(Point.Create(x, y, 0), Direction.DirZ),
Interval.Create(-1000, 1000) // Interval.Create(double.MinValue, double.MaxValue) throws an exception when we calculate the intersections
);
foreach (IPart iPart in (activeWindow.Scene.Root as Part).WalkParts())
{
foreach (IDesignBody iDesBody in iPart.Bodies)
{
if (iDesBody.IsVisible(null) == false)
{
continue;
}
if (iDesBody.Master == boxIDesBody)
{
continue;
}
foreach (IDesignFace iDesFace in iDesBody.Faces)
{
ICollection <IntPoint <SurfaceEvaluation, CurveEvaluation> > intersections = iDesFace.Shape.IntersectCurve(ray);
double maxZ = double.MinValue;
foreach (IntPoint <SurfaceEvaluation, CurveEvaluation> intersection in intersections)
{
maxZ = Math.Max(intersection.Point.Z, maxZ);
}
int intensity = (int)(255 * Interpolation.Clamp(min, max, maxZ, 0, 1));
bitmap.SetPixel(i, yCount - j - 1, System.Drawing.Color.FromArgb(intensity, intensity, intensity));
}
}
}
}
}
bitmap.Save(fileName, System.Drawing.Imaging.ImageFormat.Png);
}