Draw and fill the polygon with four vertices (positions in 2D) using the sharpdx API

Question

I have 4 float points (positions in 2D) and I want to draw and fill a polygon (with vertices in these 4 positions) in 2D using sharpdx. Can anybody help me? I am lost. sample code would be better for me as a beginner. thanks in advance

Answer 1

I found how to draw and fill a polygon. I used the drawGeometry and fillGeometry methods of the RenderTarget object.

I will not mention how to initialize directx

PathGeometry geo1; GeometrySink sink1; FactoryD2D factory = new FactoryD2D(); var dpi = factory.DesktopDpi; RenderTarget renderTarget; renderTarget = new RenderTarget(factory, backBuffer, new RenderTargetProperties() { DpiX = dpi.Width, DpiY = dpi.Height, MinLevel = SharpDX.Direct2D1.FeatureLevel.Level_DEFAULT, PixelFormat = new SharpDX.Direct2D1.PixelFormat(Format.Unknown, AlphaMode.Ignore), Type = RenderTargetType.Hardware, Usage = RenderTargetUsage.None }); // and after all initialization pta[0] = new SharpDX.Vector2(pts[4].X, pts[4].Y); pta[1] = new SharpDX.Vector2(pts[5].X, pts[5].Y); pta[2] = new SharpDX.Vector2(pts[6].X, pts[6].Y); pta[3] = new SharpDX.Vector2(pts[7].X, pts[7].Y); geo1 = new PathGeometry(factory); sink1 = geo1.Open(); sink1.BeginFigure(pta[0], new FigureBegin()); sink1.AddLines(new SharpDX.Vector2[] { pta[1], pta[2], pta[3] }); sink1.EndFigure(new FigureEnd()); sink1.Close(); Color penColor = Color.Black; SolidColorBrush penBrush = new SolidColorBrush(g, new SharpDX.Color(penColor.R, penColor.G, penColor.B)); Color color = AddColor(pt, zmin, zmax); SolidColorBrush aBrush = new SolidColorBrush(g, new SharpDX.Color(color.R, color.G, color.B)); renderTarget.DrawGeometry(geo1, penBrush); renderTarget.FillGeometry(geo1, aBrush); geo1.Dispose(); sink1.Dispose(); 

You can add other geospheres and shells to add more shapes to it.

Hope this help helps someone who is lost and trying to find an answer desperately like me.