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dPolygon (Function) In french: dPolygone
// Initialize the drawing in an Image control dStartDrawing(IMG_Drawing) // Draw a 4-side polygon whose // background is light yellow and whose border is light blue dPolygon(4, 10, 20, 20, 50, 40, 60, 50, 10, LightYellow, LightBlue)
Versions 24 and later New in version 24 Syntax
Building a polygon point by point Hide the details
dPolygon([<Image>, ] <Number of sides> , <X1> , <Y1> , <X2> , <Y2> [, <X3> , <Y3> [... [, <Xn> , <Yn>]]] [, <Background color> [, <Side color>]])
<Image>: Optional control name or optional Image, WDPic or picLayer variable Versions 24 and later New in version 24
<Number of sides>: entier Number of sides in the polygon (up to 23 sides). This parameter defines the number of <X>, <Y> pairs to specify in the function. <X1>: entier X coordinate of first point of the polygon. These coordinates are expressed in pixels. <Y1>: entier Y coordinate of first point of the polygon. These coordinates are expressed in pixels. <X2>: entier X coordinate of second point of the polygon. These coordinates are expressed in pixels. <Y2>: entier Y coordinate of second point of the polygon. These coordinates are expressed in pixels. <X3>: entier X coordinate of 3rd point of the polygon. These coordinates are expressed in pixels. <Y3>: entier Y coordinate of 3rd point of the polygon. These coordinates are expressed in pixels. <Xn>: Optional integer X coordinate of nth point of the polygon. These coordinates are expressed in pixels. <Yn>: Optional integer Y coordinate of nth point of the polygon. These coordinates are expressed in pixels. <Background color>: Integer or constant (optional) Polygon background color. This color can correspond to:If this parameter is not specified, the background color: - is Transparent if function dBackground has not been used before,
- corresponds to the Color specified in the last call to function dBackground.
<Side color>: Integer or constant (optional) Color of polygon sides. This color can correspond to:If this parameter is not specified, the line color: - corresponds to the color specified in the last call to dPen,
- is identical to the Color used for the Background if the dPen function has not been used.
Building a polygon via an array of X and Y coordinates Hide the details
dPolygon([<Image>, ] <Array of coordinates> [, <Background color> [, <Side color>]])
Versions 26 and later New in version 26Remarks Coordinates Drawing a polygon:
dPolygon(5, 80, 10, 10, 150, 100, 200, 160, 80, 140, 40)
Coordinates are given with respect to the top left corner of the image (coordinates: (0.0)). Important: There is no need to close the polygon (the coordinates of last point do not have to be equal to the coordinates of first point). The polygon is automatically "closed". Limits: a polygon can contain up to 100 000 points in WINDEV, WEBDEV and Java, and up to 1000 points in Windows CE. Versions 16 and later New in version 16
Related Examples:
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Unit examples (WINDEV): The drawing functions
[ + ] Using the main drawing functions of WINDEV to: - Initialize an Image control for drawing - Draw simple shapes - Write a text into a drawing - Change the color in a drawing
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Business / UI classification : Neutral code
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