Parameters
| Name | Explanation |
|---|---|
| x | An array of x coordinate values defining points of a polygonal area on the image. (in pixels) * (see Note below) |
| y | An array of y coordinate values defining points of a polygonal area on the image. (in pixels) * (see Note below) |
| Points | The number of points defining the polygonal area on the image. |
| * NOTE for retrieving array values: In Visual Basic, if the array is defined as Dim x(0 To 2) As Long, then the arguments are returned in x(0). In Visual C++, pass the pointer to the first element in the array. In VB.NET, the arguments are returned in x(0). In C#.NET, the arguments are returned in x[0]. |
|
Return Value
Returns True (nonzero) if successful, otherwise returns False (0).
Explanation
The AntiAlias method smoothes edges in raster images. To execute the AntiAlias method, set the image handle of the image in the ImageHandle property or the Layer(LayerNo).ImageHandle property. The AntiAlias method supports 8-bit grayscale, 16, 24, and 32 bit images.
This method is recommended when using scripting or other languages that require variant types or when using 64 bit builds in VB.NET or C#.
Before executing the AntiAlias method, you must set the area on the image that will be affected. There are 4 ways to do this.
- To use a mask image, set the SelectMode property to 0. Set the mask image handle in the MaskImageHandle property
- To process the total image, set the SelectMode property to 1
- To process the polygonal area on the image, set the SelectMode property to 2. Select the polygon by setting the appropriate coordinate values for the points of the polygon in two arrays, one array for the x coordinate values and one array for the y coordinate values. The pass these arrays to the x and y arguments of the AntiAlias method. The number of points defining the polygon must be 3 or more
- To process an elliptical area on the image, set the SelectMode property to 3. Select the ellipse by setting the appropriate values for the bounding rectangle in the RectLeft, RectTop, RectRight, and RectBottom properties
Note: When the SelectMode property is set to values other than 2 (ikEffectPolygon), please set dummy arrays in the x and y parameters and set the Points parameter to 0.
If successful the resulting raster image data is set in the LayerNo property (the ImageHandle property or the Layer(LayerNo).ImageHandle property. If unsuccessful, 0 is returned.
When the Caption, Message, and ButtonName properties are blank, the progress dialog box will not be displayed. When the progress dialog box is displayed, the percentage that the processing has completed will be shown in the dialog box.
For scripting languages and other programs that require variant types or when using 64 bit builds in VB.NET or C#, please refer to the AntiAliasVariant method.