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POHow to save Geometry as image?
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2012-01-31T13:21:42.233
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2012-10-19T17:52:37.767
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Body
How to save <code>Geometry</code> as image? For example i have <code>List<Geometry></code>. I want it to be as follows: <pre><code>for (int i = 0; i < GeometryList.Count; i++) { Pen TestPen = new Pen(Brushes.Black, 1); GeometryDrawing TestDrawing = new GeometryDrawing(Brushes.Black, TestPen, TestGeometry); Bitmap b = TestDrawing as Bitmap; b.Save(System.AppDomain.CurrentDomain.BaseDirectory + i + ".png", ImageFormat.Png); } </code></pre> Update: The code I wrote a few hours ago: <pre><code> private void CreateFontMap(string PathTofont) { GlyphTypeface font = new GlyphTypeface(new Uri(PathTofont)); List<ushort> fontNum = new List<ushort>(); foreach (KeyValuePair<int, ushort> kvp in font.CharacterToGlyphMap) { fontNum.Add(kvp.Value); } if (fontNum.Count > 0) { int mapWidth = 50 * 20; int mapHeight = 50 * (getRowNum(fontNum.Count + 1) + 1); Bitmap b = new Bitmap(mapWidth, mapHeight); Graphics g = Graphics.FromImage(b); System.Windows.Media.Pen glyphPen = new System.Windows.Media.Pen(System.Windows.Media.Brushes.Red, 1); Geometry glyphGeometry; for (int i = 0; i < fontNum.Count; i++) { glyphGeometry = font.GetGlyphOutline(fontNum[i], 50, 1); RenderTargetBitmap bmp = new RenderTargetBitmap(50, 50, 96, 96, PixelFormats.Pbgra32); DrawingVisual viz = new DrawingVisual(); DrawingContext dc = viz.RenderOpen(); dc.DrawGeometry(System.Windows.Media.Brushes.Red, null, glyphGeometry); dc.Close(); bmp.Render(viz); PngBitmapEncoder encoder = new PngBitmapEncoder(); encoder.Frames.Add(BitmapFrame.Create(bmp)); MemoryStream myStream = new MemoryStream(); encoder.Save(myStream); int rowNum = (getRowNum(i)); g.DrawImage(System.Drawing.Bitmap.FromStream(myStream), new PointF((i - rowNum * 20) * 50, rowNum * 50)); } g.Dispose(); b.Save(System.AppDomain.CurrentDomain.BaseDirectory + "map.png", ImageFormat.Png); b.Dispose(); } } private int getRowNum(int p) { return p / 20; } </code></pre> But instead of <img src="https://i.stack.imgur.com/4F0DY.png" alt="Img1">, I get <a href="https://i.stack.imgur.com/4pxXw.png" rel="nofollow noreferrer">Img2</a>. Update 2: I changed this: <pre><code>DrawingVisual viz = new DrawingVisual(); DrawingContext dc = viz.RenderOpen(); dc.DrawGeometry(System.Windows.Media.Brushes.Red, null, glyphGeometry); dc.Close(); </code></pre> to: <pre><code>DrawingVisual viz = new DrawingVisual(); DrawingContext dc = viz.RenderOpen(); dc.DrawImage(geometryImage, new Rect(0, 0, 50, 50)); dc.Close(); </code></pre> and added: <pre><code>glyphDrawing = new GeometryDrawing(System.Windows.Media.Brushes.Black, glyphPen, glyphGeometry); DrawingImage geometryImage = new DrawingImage(glyphDrawing); geometryImage.Freeze(); img1.Source = geometryImage; </code></pre> And all working.
Tags
<c#><wpf><image><geometry><geometrydrawing>
Title
How to save Geometry as image?
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