public static TextureCoordinatesAndBitmap GenerateTexture(AddTextureInfo?texInfo, MeshGeometry3D mesh, string logFilePath)
{
if (texInfo == null || texInfo.Value.ImageInfos == null || texInfo.Value.ImageInfos.Length < 1 ||
texInfo.Value.ImageInfos.Any(imageInfo => imageInfo.ImageBitmap == null) ||
mesh == null || mesh.Positions == null || mesh.Positions.Count < 3)
{
return(null);
}
var addTextureInfo = texInfo.Value;
var logger = new Logger(logFilePath);
//if the normals are not present, add them
if (mesh.Normals == null || mesh.Normals.Count != mesh.Positions.Count)
{
logger.Log("TextureProcessor: start setting normals for model.");
NormalCalculator.SetNormalsForModel(mesh);
logger.Log("TextureProcessor: End setting normals for model.");
}
var imageSpecifics = addTextureInfo.ImageInfos;
var cameraRatio = addTextureInfo.CameraRatio;
var unmergedCoordinates = TexCoordinateProcessor.GetTextureCoordinates(imageSpecifics, cameraRatio, mesh.Normals, mesh.Positions);
var xCoodRangesForEachImage = new MinAndMaxTexCoodValueLimits[imageSpecifics.Count()];
for (var ctr = 0; ctr < imageSpecifics.Count(); ctr++)
{
var valRange = from texCood in unmergedCoordinates where texCood.ImgIndex == ctr select texCood.TexCood.X;
xCoodRangesForEachImage[ctr] = new MinAndMaxTexCoodValueLimits {
Min = valRange.Min(), Max = valRange.Max()
};
}
var xLimitsAtYIndices = ImgWidthOptimizer.OptimizeTexImageWidths(unmergedCoordinates, imageSpecifics);
var mergedImage = TextureImageHandler.GetMergedImage(addTextureInfo.ImageInfos, xLimitsAtYIndices, logFilePath);
var mergedImageSpecifics = new ImageSpecifics {
Width = mergedImage.Width, Height = mergedImage.Height
};
//remap these coordinates and return
var textureCoordinates = GetRemappedTextureCoordinates(unmergedCoordinates, imageSpecifics, xLimitsAtYIndices, mergedImageSpecifics);
logger.Log("Texture generation complete.");
return(new TextureCoordinatesAndBitmap
{
TextureCoordinates = textureCoordinates,
Bitmap = mergedImage,
XCoodRangesForEachImage = xCoodRangesForEachImage
});
}
/// <summary>
/// Remap the texture coordinates based on the merged image
/// </summary>
/// <param name="unmappedCoods"></param>
/// <param name="allImageSpecifics"></param>
/// <param name="xLimitsAtYIndices"></param>
/// <param name="mergedImageSpecifics"></param>
/// <returns></returns>
private static PointCollection GetRemappedTextureCoordinates(IEnumerable <TexCoodAndImgIndex> unmappedCoods,
ImageDimensions[] allImageSpecifics, OptimizedImgParams[] xLimitsAtYIndices, ImageSpecifics mergedImageSpecifics)
{
var remappedTexCoods = new PointCollection();
foreach (var texCood in
unmappedCoods.Select(unmappedCood => TextureImageHandler.GetMergedTexCoordinate(unmappedCood.ImgIndex,
unmappedCood.TexCood, allImageSpecifics, xLimitsAtYIndices, mergedImageSpecifics)))
{
remappedTexCoods.Add(texCood);
}
return(remappedTexCoods);
}