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- Coordinates
- Pattern and PHP
- Drawing in Browser code
<WDPic variable>.DrawPolyline (Function) In french: <Variable WDPic>.DessinePolyligne Draws a line composed of multiple segments in a variable of type WDPic. The first coordinate indicates the starting point of the first segment, then each coordinate indicates the end of the previous segment and the beginning of the next segment.
MonImageWDPic is WDPic = "Test.gif"
MonImageWDPic.Stylo(LightBlue, 2, 4)
tabCoordonnéesXY2 is array of 0 int = [2, 2, 140, 2, 150, 70, 0, 100, 200, 100]
MonImageWDPic.DessinePolyligne(tabCoordonnéesXY2)
IMG_MonDessin = MonImageWDPic
Syntax
Building a line point by point Hide the details
<WDPic image>.DrawPolyline(<NbPoint> , <X1> , <Y1> , <X2> , <Y2> [, <Xn> [, <Yn> [, <Line color>]]])
<WDPic image>: WDPic variable Name of the WDPic variable to be used. Only the background layer will be handled. <NbPoint>: Integer Number of line segments. This parameter defines the number of <X>, <Y> pairs to specify in the function. <X1>: Integer X-coordinate of the first segment of the line. These coordinates are expressed in pixels. <Y1>: Integer Y-coordinate of the first segment of the line. These coordinates are expressed in pixels. <X2>: Integer X-coordinate of the second segment of the line. These coordinates are expressed in pixels. <Y2>: Integer Y-coordinate of the second segment of the line. These coordinates are expressed in pixels. <Xn>: Optional integer X-coordinate of the N segment of the line. These coordinates are expressed in pixels. <Yn>: Optional integer Y-coordinate of the N segment of the line. These coordinates are expressed in pixels. <Line color>: Integer or constant (optional) Line color. This color can correspond to:If this parameter is not specified, the line color:- is Transparent if the function <WDPic variable>.Pen has not been used before.
New in version 2024In the case of an Variable type Image, the row will have the black Color.. - corresponds to the color specified in the last call to <WDPic variable>.Pen.
Building a line via an array of X and Y-coordinates Hide the details
<WDPic image>.DrawPolyline(<Array of coordinates> [, <Line color>])
<WDPic image>: WDPic variable Name of the WDPic variable to be used. Only the background layer will be handled. <Array of coordinates>: Array of integers or array of points WLanguage array of integers containing the coordinates of segments that make up the line. The even indices represent the X-coordinates while the odd indices represent the Y-coordinates of the points. These coordinates are expressed in pixels. <Line color>: Integer or constant (optional) Line color. This color can correspond to:If this parameter is not specified, the line color:- is Transparent if the function <WDPic variable>.Pen has not been used before.
New in version 2024In the case of an Variable type Image, the row will have the black Color.. - corresponds to the color specified in the last call to <WDPic variable>.Pen.
Remarks Coordinates Coordinates are specified with respect to the upper-left corner of the image (coordinates: (0.0)).
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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