IBM Visualization Data Explorer Programmer's Reference

16.9 Image Fields

An image Field is a Field with regular positions and with regular quadrilateral connections. Images also contain a "colors" component. The sign of the deltas of the "positions" component determines the orientation of the image.

Functions of the routines listed here include creating a field image, returning a pointer to the data in an image field, and returning information about an image.

Field DXMakeImage()
Creates a new empty image Field. See DXMakeImage.
RGBColor *DXGetPixels()
Returns a pointer to the data in an image Field. See DXGetPixels.
Field DXGetImageSize() Object DXGetImageBounds();
Return information about image Fields. See DXGetImageSize, DXGetImageBounds.
Field DXOutputRGB()
Writes an image to a file in RGB format. See DXOutputRGB.

Object DXDisplayX() Object DXDisplayX8(); Object DXDisplayX12(); Object DXDisplayX24();
Display an image on an X window. See DXDisplayX, DXDisplayX8, DXDisplayX12, DXDisplayX24.

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`Field DXMakeImage()`	Creates a new empty image Field. See DXMakeImage.
*`RGBColor DXGetPixels()`**	Returns a pointer to the data in an image Field. See DXGetPixels.
`Field DXGetImageSize() Object DXGetImageBounds();`	Return information about image Fields. See DXGetImageSize, DXGetImageBounds.
`Field DXOutputRGB()`	Writes an image to a file in RGB format. See DXOutputRGB.
`Object DXDisplayX() Object DXDisplayX8(); Object DXDisplayX12(); Object DXDisplayX24();`	Display an image on an X window. See DXDisplayX, DXDisplayX8, DXDisplayX12, DXDisplayX24.