An image file can be created as a raster image and added into the sdTextureManager. The raster image(sdTextureItem) can later be assigned to the sdImage object.
private void btImage_Click(object sender, EventArgs e)
// Add a raster image into the TextureManager's collection.
sdTextureItem ti = fDrawCtrl1.Document.TextureMng.Add("droidPhoto.png");
// Create a sdImage object with the associated textureItem ti.
fDrawCtrl1.Document.AddImage(ti, new Point3D(0, -10, 0), 5, 0);