Hello,
I am seeing an occasional error while trying to save out textures for multi-patch features. It will throw an exception of "Parameter is not valid." when creating an Image from a MemoryStream. It works for about 70% of the textures, but some fail.
Code snippet.
var patches = builder.Patches;
for (int x = 0; x < patches.Count; ++x) {
TextureResource texture = null;
BasicMaterial bm = patches.Material as BasicMaterial;
EsriMultipatchMaterial material = new EsriMultipatchMaterial();
material.material_index = -1;
if (multipatch.HasMaterials) {
material.material_index = multipatch.GetPatchMaterialIndex(x);
}
if (bm != null) {
texture = bm.TextureResource;
}
if (texture != null && material.material_index >= 0) {
if (m_texture_dir == null || m_texture_dir.Length == 0) continue;
material.type = see_multipatch_material_type.SEE_TXR_FILE
string file_name = string.Format("text_{0}_{1}_{2}.jpg",
layer_name, object_id, material.material_index.ToString("D5"));
material.txr_file_name = file_name;
string file_path = m_texture_dir + "\\" + file_name;
if (!File.Exists(file_path)) {
// Get the pixel data and save the file.
// Retrieve the texture pixels and save to JPEG.
try {
TextureMap txr_map = texture.Texture as TextureMap; //
byte[] img_buffer = txr_map.Buffer;
MemoryStream stream = new MemoryStream(img_buffer);
Image image = Image.FromStream(stream); ( Exception: Parameter is not valid)
ImageFormat format = ImageFormat.Jpeg;
image.Save(file_path, format);
image.Dispose();
}
..... etc. ....
}}
Any suggestions would be greatly appreciated.
Thanks,
-Bill
