Bitmap/Flood fill: Difference between revisions
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m (→{{header|Tcl}}: use better template) |
(→{{header|PureBasic}}: Procedure Floodfill) |
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=={{header|PureBasic}}== |
=={{header|PureBasic}}== |
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=== built-in === |
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<lang PureBasic>FillArea(0,0,-1,$ff) |
<lang PureBasic>FillArea(0,0,-1,$ff) |
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; Fills an Area in red</lang> |
; Fills an Area in red</lang> |
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=== Iterative === |
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An implementation will follow, but it can be that simple. |
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<lang PureBasic> Procedure Floodfill(x,y,new_color) |
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old_color = Point(x,y) |
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NewList stack.POINT() |
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AddElement(stack()):stack()\x = x : stack()\y = y |
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While(LastElement(stack())) |
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x = stack()\x : y = stack()\y |
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DeleteElement(stack()) |
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If Point(x,y) = old_color |
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Plot(x, y, new_color) |
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AddElement(stack()):stack()\x = x : stack()\y = y +1 |
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AddElement(stack()):stack()\x = x : stack()\y = y -1 |
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AddElement(stack()):stack()\x = x +1 : stack()\y = y |
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AddElement(stack()):stack()\x = x -1 : stack()\y = y |
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EndIf |
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Wend |
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EndProcedure |
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If OpenWindow(0, 0, 0, 200, 200, "Floodfill Beispiel", #PB_Window_SystemMenu | #PB_Window_ScreenCentered) |
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StartDrawing(WindowOutput(0)) |
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Box(0, 0, 200, 200, RGB(255, 255, 255)) |
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DrawingMode(#PB_2DDrawing_Outlined ) |
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Circle(100, 100, 90, RGB(255 ,0,0)): Circle(120, 80, 30, RGB(255 ,0,0)): Circle(200,200, 70, RGB(255 ,0,0)) |
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Floodfill(40,40,RGB(0 ,255,0)) |
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StopDrawing() |
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Repeat |
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Event = WaitWindowEvent() |
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Until Event = #PB_Event_CloseWindow |
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EndIf</lang> |
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=={{header|Tcl}}== |
=={{header|Tcl}}== |
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