public void Draw(UVMesh mesh, int imageSize, string texturePath, string exportPath, bool enableDrawBackground)
{
using (var texture = !File.Exists(texturePath) ? null : IsTGA(texturePath) ? new TGASharpLib.TGA(texturePath).ToBitmap() : new Bitmap(texturePath))
{
var textureRepeatCount = CalcTextureRepeatCount(mesh);
var unitSize = CalcUnitSize(imageSize, texture?.Width ?? imageSize, texture?.Height ?? imageSize);
using (var bmp = new Bitmap(unitSize.X * textureRepeatCount.X, unitSize.Y * textureRepeatCount.Y))
using (var background = texture != null && enableDrawBackground ? CreateBackgroundImage(texture, textureRepeatCount) : null)
{
DrawMesh(bmp, background, mesh, unitSize);
bmp.Save(exportPath, ImageFormat.Png);
}
}
}
private static void DrawMesh(Bitmap drawTartget, Bitmap background, UVMesh mesh, Point unitSize)
{
var uvDrawOffset = new Point(-mesh.MinBound.X, -mesh.MinBound.Y);
var imagePosMesh = mesh.Mesh.Select(e => e.Add(uvDrawOffset.X, uvDrawOffset.Y).Mul(unitSize.X - 1, unitSize.Y - 1));
using (var graph = Graphics.FromImage(drawTartget))
using (var pen = new Pen(Color.Black)
{
Width = 1
})
{
graph.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;
if (background != null)
{
graph.DrawImage(background, 0, 0, drawTartget.Width, drawTartget.Height);
}
foreach (var edge in imagePosMesh)
{
graph.DrawLine(pen, edge.UV[0], edge.UV[1]);
}
}
}
public Point CalcTextureRepeatCount(UVMesh mesh) => new Point(mesh.MaxBound.X - mesh.MinBound.X, mesh.MaxBound.Y - mesh.MinBound.Y);
internal void ExportUVImage(int imageSize, string exportPath, bool drawTexture)
{
var uvMesh = new ExportUV.UVMesh(Current.Material.Vertices, Current.Material.Faces);
new ExportUV.GDIUVDrawer().Draw(uvMesh, imageSize, Current.Material.TexFullPath, exportPath, drawTexture);
}