This method corrects a warped raster image
Parameters
| Name | Explanation |
|---|---|
| Px1-Px4 | The x coordinates of the four points defining the area for Affine changes. (in pixels) |
| Py1-Py4 | The y coordinates of the four points defining the area for Affine changes. (in pixels) |
Return Value
Returns True if successful, otherwise returns False.
Explanation
The Affine method corrects a warped raster image. (Px1,Py1), (Px2,Py2), (Px3,Py3), (Px4,Py4) are the points of the (irregular) quadrangle that surrounds the area in the image to be corrected. The corrected area is squared and scaled to fit into a regular rectangle.
To execute the Affine method, set the image handle of the image in the ImageHandle property or the Layer(LayerNo).ImageHandle property. The Affine method supports 1, 4, 8, 16, 24, and 32 bit color images. 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.