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- Coordinates
- Non-solid figure
- Drawing with opacity or anti-aliasing
- Drawing in PHP
- Drawing in Browser code
<Image>.DrawSlice (Function) In french: <Image>.DessinePortion
// Draw a circle section whose // background is light yellow and whose border is light blue IMG_Drawing.DrawSlice(10, 10, 50, 50, 20, 20, 40, 50, LightYellow, LightBlue)
Syntax
<Image control>.DrawSlice(<X1> , <Y1> , <X2> , <Y2> , <X3> , <Y3> , <X4> , <Y4> [, <Background color> [, <Line color>]])
<Image control>: Control name Name of the Image control to use. <X1>: Integer X coordinate of top left corner of the rectangle containing the circle. These coordinates are expressed in pixels. <Y1>: Integer Y coordinate of top left corner of the rectangle containing the circle. These coordinates are expressed in pixels. <X2>: Integer X coordinate of bottom right corner of the rectangle containing the circle. These coordinates are expressed in pixels. <Y2>: Integer Y coordinate of bottom right corner of the rectangle containing the circle. These coordinates are expressed in pixels. <X3>: Integer X coordinate of start point of the circle section. These coordinates are expressed in pixels. <Y3>: Integer Y coordinate of start point of the circle section. These coordinates are expressed in pixels. <X4>: Integer X coordinate of end point of the circle section. These coordinates are expressed in pixels. <Y4>: Integer Y coordinate of end point of the circle section. These coordinates are expressed in pixels. <Background color>: Integer or constant (optional) Background color of circle section. This color can correspond to:If this parameter is not specified, the background color: <Line color>: Integer or constant (optional) Color of the line for the circle section. This color can correspond to:If this parameter is not specified, the line color: - corresponds to the color specified in the last call to <Image>.Pen,
- is identical to the color used for the background if <Image>.Pen has not been used.
Remarks Coordinates If the start point and the end point are not located on the border of the circle (or on the border of the ellipse), the point taken into account corresponds to the intersection between the circle and the line that joins the specified point and the center of the rectangle (which means the center of the circle).
The coordinates are specified in relation to the top left corner of the Image control (coordinates set to (0,0)). The drawing sections are drawn anticlockwise. Non-solid figure To draw a non-solid figure (without taking into account the center of the circle), use <Image>.DrawChord.
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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