public List <IData3DSet> AddMapImages(FGEImage [] list)
{
if (list.Length > 0)
{
var datasetMapImg = Data3DSetClass <TexturedQuadData> .Create("mapimage", Color.White, 1.0f);
for (int i = 0; i < list.Length; i++)
{
FGEImage img = list[i];
if (_cachedTextures.ContainsKey(img.FileName))
{
datasetMapImg.Add(_cachedTextures[img.FileName]);
}
else
{
Bitmap bmp = (Bitmap)Bitmap.FromFile(img.FilePath);
Vector3 centre = new Vector3((img.TopLeft.X + img.BottomRight.X) / 2, 0, (img.TopRight.Y + img.BottomLeft.Y) / 2);
float width = img.TopRight.X - img.BottomLeft.X;
float height = img.TopLeft.Y - img.BottomRight.Y; // its rectangular.. so does not really matter which left/right/top/bot you use
var texture = TexturedQuadData.FromBitmap(bmp, centre, TexturedQuadData.NoRotation, width, height);
_cachedTextures[img.FileName] = texture;
datasetMapImg.Add(texture);
}
}
_datasets.Add(datasetMapImg);
}
return(_datasets);
}
public static TexturedQuadData FromFGEImage(FGEImage img)
{
Bitmap bmp = (Bitmap)Bitmap.FromFile(img.FilePath);
Vector3d[] vertices = GetVertices(img);
Vector4d[] texcoords = GetTexCoords(img, bmp.Width, bmp.Height);
return(new TexturedQuadData(vertices, texcoords, bmp));
}
protected static Vector3d[] GetVertices(FGEImage img)
{
return(new Vector3d[]
{
new Vector3d(img.TopLeft.X, 0.0, img.TopLeft.Y),
new Vector3d(img.TopRight.X, 0.0, img.TopRight.Y),
new Vector3d(img.BottomRight.X, 0.0, img.BottomRight.Y),
new Vector3d(img.BottomLeft.X, 0.0, img.BottomLeft.Y)
});
}
protected static Vector4d[] GetTexCoords(FGEImage img, int width, int height)
{
Vector4d[] texcoords = new Vector4d[]
{
new Vector4d(img.pxTopLeft.X * 1.0 / width, img.pxTopLeft.Y * 1.0 / height, 0, 1),
new Vector4d(img.pxTopRight.X * 1.0 / width, img.pxTopRight.Y * 1.0 / height, 0, 1),
new Vector4d(img.pxBottomRight.X * 1.0 / width, img.pxBottomRight.Y * 1.0 / height, 0, 1),
new Vector4d(img.pxBottomLeft.X * 1.0 / width, img.pxBottomRight.Y * 1.0 / height, 0, 1)
};
if (img.TopLeft.X == img.BottomLeft.X &&
img.TopRight.X == img.BottomRight.X &&
img.TopLeft.Y == img.TopRight.Y &&
img.BottomLeft.Y == img.BottomRight.Y)
{
Vector2d a = new Vector2d(img.pxTopRight.X - img.pxBottomLeft.X, img.pxTopRight.Y - img.pxBottomLeft.Y);
Vector2d b = new Vector2d(img.pxTopLeft.X - img.pxBottomRight.X, img.pxTopLeft.Y - img.pxBottomRight.Y);
double cross = a.X * b.Y - b.X * a.Y;
if (cross != 0)
{
Vector2d c = new Vector2d(img.pxBottomLeft.X - img.pxBottomRight.X, img.pxBottomLeft.Y - img.pxBottomRight.Y);
double qa = (a.X * c.Y - c.X * a.Y) / cross;
double qb = (b.X * c.Y - c.X * b.Y) / cross;
if (qa > 0 && qa < 1 && qb > 0 && qb < 1)
{
texcoords = new Vector4d[]
{
texcoords[0] * qb,
texcoords[1] * qa,
texcoords[2] * (1 - qb),
texcoords[3] * (1 - qa)
};
}
}
}
return(texcoords);
}
