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dPolyline (Function) In french: dPolyligne
dStartDrawing(IMG_Drawing) // Draws a 4-pixel thick, green dotted line dPen(DarkGreen, 2, 4) // Line composed of 4 segments dPolyline(4, 10, 100, 50, 60, 80, 90, 150, 13)
dStartDrawing(IMG_Drawing) dPen(DarkGreen, 2, 4) // Draw a line from an array of point coordinates (syntax 2) arrCoordinatesXY is array of 0 by 2 int = [[2, 3], [14, 100], [10,70], [50, 80]] dPolyline(arrCoordinatesXY)
dPen(IMG_Drawing, DarkGreen, 2, 4) arrCoordinatesXY2 is array of 0 int = [2, 2, 140, 2, 150, 70, 0, 100, 200,100] dPolyline(IMG_Drawing, arrCoordinatesXY2)
Syntax
Building a line point by point Hide the details
dPolyline([<Image>, ] <NbPoint> , <X1> , <Y1> , <X2> , <Y2> [, <Xn> [, <Yn> [, <Line color>]]])
<Image>: Optional control name or optional Image, WDPic or picLayer variable <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:- corresponds to the color specified in the last call to dPen,
- is identical to the color used for the background if dPen has not been used.
Building a line via an array of X and Y coordinates Hide the details
dPolyline([<Image>, ] <Array of coordinates> [, <Line color>])
<Image>: Optional control name or optional Image, WDPic or picLayer variable <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 subscript represent the X coordinates while the odd subscripts represent the Y coordinates of 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:- corresponds to the color specified in the last call to dPen,
- is identical to the color used for the background if dPen has not been used.
Remarks Coordinates Coordinates are given with respect to the top 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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