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Stored procedures
Draws a polygon in an Image control.
Versions 25 and later
Android This function is now available for Android applications.
Java This function is now available for Java applications.
New in version 25
Android This function is now available for Android applications.
Java This function is now available for Java applications.
Android This function is now available for Android applications.
Java This function is now available for Java applications.
Versions 15 and later
WEBDEV - Server codeLinux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.
New in version 15
WEBDEV - Server codeLinux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.
WEBDEV - Server codeLinux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.
Versions 16 and later
Android This function is now available for Android applications.
New in version 16
Android This function is now available for Android applications.
Android This function is now available for Android applications.
Versions 17 and later
iPhone/iPad This function is now available for iPhone/iPad applications.
New in version 17
iPhone/iPad This function is now available for iPhone/iPad applications.
iPhone/iPad This function is now available for iPhone/iPad applications.
Versions 18 and later
Universal Windows 10 App This function is now available in Windows Store apps mode.
New in version 18
Universal Windows 10 App This function is now available in Windows Store apps mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Versions 24 and later
Android The syntax that manages the Point and the Color types is now available for Android applications.
Java The syntax that manages the Point and the Color types is now available for Java applications.
New in version 24
Android The syntax that manages the Point and the Color types is now available for Android applications.
Java The syntax that manages the Point and the Color types is now available for Java applications.
Android The syntax that manages the Point and the Color types is now available for Android applications.
Java The syntax that manages the Point and the Color types is now available for Java applications.
Example
// Draw a 4-side polygon whose
// background is light yellow and whose border is light blue
IMG_Dessin.DrawPolygon(4, 10, 20, 20, 50, 40, 60, 50, 10, LightYellow, LightBlue)
Syntax

Building a polygon point by point Hide the details

<Image control>.DrawPolygon(<Number of sides> , <X1> , <Y1> , <X2> , <Y2> [, <X3> , <Y3> [... [, <Xn> , <Yn>]]] [, <Background color> [, <Side color>]])
<Image control>: Control name
Name of Image control to use.
<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)
Background color of polygon. 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:
  • corresponds to the color specified in the last call to <Image>.Pen,
  • is identical to the color used for the background if <Image>.Pen was not used.

Building a polygon via an array of X and Y coordinates Hide the details

<Image control>.DrawPolygon(<Array of coordinates> [, <Background color> [, <Side color>]])
<Image control>: Control name
Name of Image control to use.
<Array of coordinates>: Array of integers or array of points
  • WLanguage array of integers containing the coordinates of polygon points. The even subscript represent the X coordinates while the odd subscripts represent the Y coordinates of points. These coordinates are expressed in pixels.
  • Versions 22 and later
    WINDEVWEBDEV - Server codeiPhone/iPadWindows MobileUniversal Windows 10 App WLanguage array of Point variables containing the coordinates of polygon points. These coordinates are expressed in pixels.
    New in version 22
    WINDEVWEBDEV - Server codeiPhone/iPadWindows MobileUniversal Windows 10 App WLanguage array of Point variables containing the coordinates of polygon points. These coordinates are expressed in pixels.
    WINDEVWEBDEV - Server codeiPhone/iPadWindows MobileUniversal Windows 10 App WLanguage array of Point variables containing the coordinates of polygon points. These coordinates are expressed in pixels.
    WINDEVWEBDEV - Server codeAndroidiPhone/iPadWindows MobileUniversal Windows 10 AppJava WLanguage array of Point variables containing the coordinates of polygon points. These coordinates are expressed in pixels.
<Background color>: Integer or constant (optional)
Background color of polygon. 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:
  • corresponds to the color specified in the last call to <Image>.Pen,
  • is identical to the color used for the background if <Image>.Pen was not used.
Remarks

Coordinates

Drawing a polygon:
IMG_Drawing.DrawPolygon(5, 80, 10, 10, 150, 100, 200, 160, 80, 140, 40)
Drawing a polygon
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.
WINDEVWEBDEV - Server codeReports and QueriesWindowsAndroidJavaAjaxUser code (UMC)

Drawing with opacity or anti-aliasing

In the case of a drawing with opacity (<Image>.StartDrawing with the dWithOpacity constant) or anti-aliasing (<Image>.ChangeMode with the drawAntiAliasing constant), the outline is drawn over the inside of the polygon: therefore, the line is partly combined with the inside of the polygon. If the line is very thick, it will be displayed in two colors.
Related Examples:
The drawing functions 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
Business / GUI classification : Neutral code
Component : wd250pnt.dll
Minimum version required
  • Version 24
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