/// <summary>
/// Initialize the graphics buffer (should be called in the forms load event).
/// </summary>
public void Initialize()
{
zoom.Initialize(this.ClientRectangle);
InitializeBuffer();
initialized = true;
this.Invalidate();
}
/// <summary>
/// Initialize the graphics buffer (should be called in the forms load event).
/// </summary>
public void Initialize(Mesh mesh)
{
renderer = new TopologyRenderer(mesh);
zoom.Initialize(this.ClientRectangle);
//zoom.ClipMargin = 10.0f;
var b = mesh.Bounds;
zoom.Update(new BoundingBox((float)b.MinX, (float)b.MaxX,
(float)b.MinY, (float)b.MaxY));
InitializeBuffer();
initialized = true;
this.Render();
}
/// <summary>
/// Export the mesh to PNG format.
/// </summary>
/// <param name="mesh">The current mesh.</param>
/// <param name="filename">The PNG filename.</param>
/// <param name="width">The desired width (pixel) of the image.</param>
public void Export(Mesh mesh, string filename, int width)
{
// Get mesh data -- TODO: Use RenderControl's RenderData
RenderData data = new RenderData();
data.SetMesh(mesh);
// Check file name
if (String.IsNullOrWhiteSpace(filename))
{
filename = String.Format("mesh-{0}.png", DateTime.Now.ToString("yyyy-M-d-hh-mm-ss"));
}
Bitmap bitmap;
// Check if the specified width is reasonable
if (width < 2 * Math.Sqrt(mesh.Vertices.Count))
{
bitmap = new Bitmap(400, 200);
Graphics g = Graphics.FromImage(bitmap);
g.Clear(colors.Background);
string message = String.Format("Sorry, I won't render {0} points on such a small image!", mesh.Vertices.Count);
SizeF sz = g.MeasureString(message, SystemFonts.DefaultFont);
g.SmoothingMode = SmoothingMode.AntiAlias;
g.DrawString(message, SystemFonts.DefaultFont, colors.Point,
200 - sz.Width / 2, 100 - sz.Height / 2);
g.Dispose();
}
else
{
var bounds = data.Bounds;
// World margin on each side
float margin = (float)bounds.Height * 0.05f;
float scale = width / ((float)bounds.Width + 2 * margin);
var target = new Rectangle(0, 0, width, (int)((bounds.Height + 2 * margin) * scale));
bitmap = new Bitmap(width, target.Height, PixelFormat.Format32bppPArgb);
Zoom zoom = new Zoom();
zoom.Initialize(target, bounds);
Graphics g = Graphics.FromImage(bitmap);
g.Clear(colors.Background);
g.SmoothingMode = SmoothingMode.HighQuality;
MeshRenderer meshRenderer = new MeshRenderer(data, colors);
meshRenderer.Render(g, zoom);
g.Dispose();
}
if (Path.GetExtension(filename) != ".png")
{
filename += ".png";
}
bitmap.Save(filename, ImageFormat.Png);
}