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 (nonzero) if successful, otherwise returns False (0).
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.