11/7/2022 0 Comments Free pascal random 255![]() ![]() Using a command for the outline, we achieve to draw a textured ellipse with a border. ![]() If you want an antialiased junction between polygons, you need to use TBGRAMultishapeFiller in the BGRAPolygon unit and draw everything at once. Nevertheless, even if you pay attention to this, the result will not be perfect. Indeed, when the pen width is 1, the inner radius is 0.5 smaller and the outer radius is 0.5 greater. Free pascal random 255 generator#You may not call random until you have initialized the random number generator with initrandom. If you disable Turbo Pascal compatibility by invoking ALICE with the -t option, the call to random has the form i : random This returns a pseudo-random integer. Notice that the radius is 0.5 pixel smaller for the filling. The actual random numbers are obtained from a function named random. The first is the filling, and the second is the outline. To fill an ellipse with a texture, just pass the texture as a parameter instead of the color. free end Īs you can see, a texture is just some bitmap. EllipseAntialias ( x, y, rx, ry, c, 1 ) //draw outline tex. FillEllipseAntialias ( x, y, rx - 0.5, ry - 0.5, tex ) image. CreateBrushTexture ( bsDiagCross, BGRAWhite, BGRA ( 255, 192, 0 )) as TBGRABitmap image. ![]() Create ( ClientWidth, ClientHeight, ColorToBGRA ( ColorToRGB ( clBtnFace ))) c := ColorToBGRA ( ColorToRGB ( clWindowText )) //ellipse coordinates x := 150 y := 100 rx := 100 ry := 50 //loads a "diagcross" brush with white pattern and orange background tex := image. FormPaint ( Sender : TObject ) var image, tex : TBGRABitmap c : TBGRAPixel x, y, rx, ry : single begin image := TBGRABitmap. ![]()
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