protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
try
{
Graphics3DForm graphics = new Graphics3DForm(this, e.Graphics);
double angleHorizRad = AngleHoriz * Math.PI / 180.0;
double angleVertRad = AngleVert * Math.PI / 180.0;
double cameraDistance = 100000.0;
graphics.CameraPosition = new Vector3D(
cameraDistance * Math.Cos(angleHorizRad) * Math.Cos(angleVertRad)
, cameraDistance * Math.Sin(angleHorizRad) * Math.Cos(angleVertRad)
, cameraDistance * Math.Sin(angleVertRad));
// set camera target
graphics.Target = Vector3D.Zero;
// set viewport (not actually needed)
graphics.SetViewport(-500.0f, -500.0f, 500.0f, 500.0f);
// show images
graphics.ShowTextures = true;
graphics.ShowDimensions = ShowDimensions;
graphics.FontSizeRatio = 10.0f / (float)Size.Height;
if (null != DrawingContainer)
{
try
{
DrawingContainer.Draw(this, graphics);
}
catch (Exception ex)
{
e.Graphics.DrawString(ex.ToString()
, new Font("Arial", 12)
, new SolidBrush(Color.Red)
, new Point(0, 0)
, StringFormat.GenericDefault);
_log.Error(ex.ToString());
}
}
else if (null != Viewer)
{
try
{
Viewer.Draw(graphics, Transform3D.Identity);
}
catch (Exception ex)
{
e.Graphics.DrawString(ex.Message
, new Font("Arial", 12)
, new SolidBrush(Color.Red)
, new Point(0, 0)
, StringFormat.GenericDefault);
_log.Error(ex.Message);
}
}
graphics.Flush();
if (null != Viewer)
{
Viewer.CurrentTransformation = graphics.GetCurrentTransformation();
Viewer.ViewDir = graphics.ViewDirection;
}
// draw toolbar
if (ShowToolBar)
{
DrawToolBar(e.Graphics);
}
}
catch (Exception ex)
{
_log.Error(ex.ToString());
}
}