Exemplo n.º 1
0
        private void CreateThumbnail()
        {
            string stlHashCode = this.PrintItem.FileHashCode.ToString();

            ImageBuffer bigRender = new ImageBuffer();

            if (!File.Exists(this.PrintItem.FileLocation))
            {
                return;
            }

            List <MeshGroup> loadedMeshGroups = MeshFileIo.Load(this.PrintItem.FileLocation);

            RenderType renderType = GetRenderType(this.PrintItem.FileLocation);

            switch (renderType)
            {
            case RenderType.RAY_TRACE:
            {
                ThumbnailTracer tracer = new ThumbnailTracer(loadedMeshGroups, BigRenderSize.x, BigRenderSize.y);
                tracer.DoTrace();

                bigRender = tracer.destImage;
            }
            break;

            case RenderType.PERSPECTIVE:
            {
                ThumbnailTracer tracer = new ThumbnailTracer(loadedMeshGroups, BigRenderSize.x, BigRenderSize.y);
                this.thumbnailImage = new ImageBuffer(this.buildingThumbnailImage);
                this.thumbnailImage.NewGraphics2D().Clear(new RGBA_Bytes(255, 255, 255, 0));

                bigRender = new ImageBuffer(BigRenderSize.x, BigRenderSize.y, 32, new BlenderBGRA());

                foreach (MeshGroup meshGroup in loadedMeshGroups)
                {
                    double minZ = double.MaxValue;
                    double maxZ = double.MinValue;
                    foreach (Mesh loadedMesh in meshGroup.Meshes)
                    {
                        tracer.GetMinMaxZ(loadedMesh, ref minZ, ref maxZ);
                    }

                    foreach (Mesh loadedMesh in meshGroup.Meshes)
                    {
                        tracer.DrawTo(bigRender.NewGraphics2D(), loadedMesh, RGBA_Bytes.White, minZ, maxZ);
                    }
                }

                if (bigRender == null)
                {
                    bigRender = new ImageBuffer(this.noThumbnailImage);
                }
            }
            break;

            case RenderType.NONE:
            case RenderType.ORTHOGROPHIC:

                this.thumbnailImage = new ImageBuffer(this.buildingThumbnailImage);
                this.thumbnailImage.NewGraphics2D().Clear(new RGBA_Bytes(255, 255, 255, 0));
                bigRender = BuildImageFromMeshGroups(loadedMeshGroups, stlHashCode, BigRenderSize);
                if (bigRender == null)
                {
                    bigRender = new ImageBuffer(this.noThumbnailImage);
                }
                break;
            }

            // and save it to disk
            string imageFileName = GetImageFileName(stlHashCode);

            if (partExtension == ".png")
            {
                ImageIO.SaveImageData(imageFileName, bigRender);
            }
            else
            {
                ImageTgaIO.SaveImageData(imageFileName, bigRender);
            }

            ImageBuffer unScaledImage = new ImageBuffer(bigRender.Width, bigRender.Height, 32, new BlenderBGRA());

            unScaledImage.NewGraphics2D().Render(bigRender, 0, 0);
            // If the source image (the one we downloaded) is more than twice as big as our dest image.
            while (unScaledImage.Width > Width * 2)
            {
                // The image sampler we use is a 2x2 filter so we need to scale by a max of 1/2 if we want to get good results.
                // So we scale as many times as we need to to get the Image to be the right size.
                // If this were going to be a non-uniform scale we could do the x and y separatly to get better results.
                ImageBuffer halfImage = new ImageBuffer(unScaledImage.Width / 2, unScaledImage.Height / 2, 32, new BlenderBGRA());
                halfImage.NewGraphics2D().Render(unScaledImage, 0, 0, 0, halfImage.Width / (double)unScaledImage.Width, halfImage.Height / (double)unScaledImage.Height);
                unScaledImage = halfImage;
            }

            this.thumbnailImage = new ImageBuffer((int)Width, (int)Height, 32, new BlenderBGRA());
            this.thumbnailImage.NewGraphics2D().Clear(new RGBA_Bytes(255, 255, 255, 0));
            this.thumbnailImage.NewGraphics2D().Render(unScaledImage, 0, 0, 0, (double)this.thumbnailImage.Width / unScaledImage.Width, (double)this.thumbnailImage.Height / unScaledImage.Height);

            UiThread.RunOnIdle(this.EnsureImageUpdated);

            OnDoneRendering();
        }
        private void CreateThumbnail()
        {
            string stlHashCode = this.ItemWrapper.FileHashCode.ToString();

            ImageBuffer bigRender = new ImageBuffer();

            if (!File.Exists(this.ItemWrapper.FileLocation))
            {
                return;
            }

            List <MeshGroup> loadedMeshGroups = MeshFileIo.Load(this.ItemWrapper.FileLocation);

            RenderType renderType = GetRenderType(this.ItemWrapper.FileLocation);

            switch (renderType)
            {
            case RenderType.RAY_TRACE:
            {
                ThumbnailTracer tracer = new ThumbnailTracer(loadedMeshGroups, BigRenderSize.x, BigRenderSize.y);
                tracer.DoTrace();

                bigRender = tracer.destImage;
            }
            break;

            case RenderType.PERSPECTIVE:
            {
                ThumbnailTracer tracer = new ThumbnailTracer(loadedMeshGroups, BigRenderSize.x, BigRenderSize.y);
                this.thumbnailImage = new ImageBuffer(this.buildingThumbnailImage);
                this.thumbnailImage.NewGraphics2D().Clear(new RGBA_Bytes(255, 255, 255, 0));

                bigRender = new ImageBuffer(BigRenderSize.x, BigRenderSize.y);

                foreach (MeshGroup meshGroup in loadedMeshGroups)
                {
                    double minZ = double.MaxValue;
                    double maxZ = double.MinValue;
                    foreach (Mesh loadedMesh in meshGroup.Meshes)
                    {
                        tracer.GetMinMaxZ(loadedMesh, ref minZ, ref maxZ);
                    }

                    foreach (Mesh loadedMesh in meshGroup.Meshes)
                    {
                        tracer.DrawTo(bigRender.NewGraphics2D(), loadedMesh, RGBA_Bytes.White, minZ, maxZ);
                    }
                }

                if (bigRender == null)
                {
                    bigRender = new ImageBuffer(this.noThumbnailImage);
                }
            }
            break;

            case RenderType.NONE:
            case RenderType.ORTHOGROPHIC:

                this.thumbnailImage = new ImageBuffer(this.buildingThumbnailImage);
                this.thumbnailImage.NewGraphics2D().Clear(new RGBA_Bytes(255, 255, 255, 0));
                bigRender = BuildImageFromMeshGroups(loadedMeshGroups, stlHashCode, BigRenderSize);
                if (bigRender == null)
                {
                    bigRender = new ImageBuffer(this.noThumbnailImage);
                }
                break;
            }

            // and save it to disk
            string imageFileName = GetImageFileName(stlHashCode);

            if (partExtension == ".png")
            {
                ImageIO.SaveImageData(imageFileName, bigRender);
            }
            else
            {
                ImageTgaIO.SaveImageData(imageFileName, bigRender);
            }

            bigRender.SetRecieveBlender(new BlenderPreMultBGRA());

            this.thumbnailImage = ImageBuffer.CreateScaledImage(bigRender, (int)Width, (int)Height);

            UiThread.RunOnIdle(this.EnsureImageUpdated);

            OnDoneRendering();
        }