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- Coordinates
- Drawing with opacity or anti-aliasing
- Drawing in PHP
- Drawing in Browser code
<Image variable>.DrawPolygon (Function) In french: <Variable Image>.DessinePolygone Draws a polygon in an Image variable. MonImage is Image = "Test.gif"
MonImage.DrawPolygon(4, 10, 20, 20, 50, 40, 60, 50, 10, LightYellow, LightBlue)
IMG_MonDessin = MonImage
Syntax
Building a polygon point by point Hide the details
<Image variable>.DrawPolygon(<Number of sides> , <X1> , <Y1> , <X2> , <Y2> [, <X3> , <Y3> [... [, <Xn> , <Yn>]]] [, <Background color> [, <Side color>]])
<Image variable>: Image variable Name of the Image variable to be used. <Number of sides>: Integer 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>: Integer X-coordinate of first point of the polygon. These coordinates are expressed in pixels. <Y1>: Integer Y-coordinate of first point of the polygon. These coordinates are expressed in pixels. <X2>: Integer X-coordinate of second point of the polygon. These coordinates are expressed in pixels. <Y2>: Integer Y-coordinate of second point of the polygon. These coordinates are expressed in pixels. <X3>: Integer X-coordinate of 3rd point of the polygon. These coordinates are expressed in pixels. <Y3>: Integer 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: <Side color>: Integer or constant (optional) Color of polygon sides. This color can correspond to:If this parameter is not specified, the line color:
Building a polygon via an array of X and Y-coordinates Hide the details
<Image variable>.DrawPolygon(<Array of coordinates> [, <Background color> [, <Side color>]])
<Image variable>: Image variable Name of the Image variable to be used. <Array of coordinates>: Array of integers or array of points - WLanguage array of integers containing the coordinates of polygon points. The even indexes represent the X-coordinates while the odd indexes represent the Y-coordinates of the points. These coordinates are expressed in pixels.
WLanguage array of Point variables containing the coordinates of the polygon points. 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: <Side color>: Integer or constant (optional) Color of polygon sides. This color can correspond to:If this parameter is not specified, the line color: Remarks Coordinates Drawing a polygon:
MonImage.DessinePolygone(5, 80, 10, 10, 150, 100, 200, 160, 80, 140, 40)
Coordinates are specified with respect to the upper-left corner of the image (coordinates: (0.0)). Important It is not necessary to close the polygon (the coordinates of the last point do not have to be equal to the coordinates of the first point). The polygon is automatically "closed". Limits A polygon can have a maximum of 100,000 points in WINDEV, WEBDEV and Java, and 1,000 points in Windows CE.
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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