exportData problem

[np]

We're trying to use LTISceneBuffer::exportData() to export to a Windows RGB dib section. It works fine with 8 bit MrSID files but not with 16 bit MrSID files.

The call looks like this:

scenebuff.exportData((void *&)pBits,3,LizardTech::LTISceneBuffer::addAlignment(rectImage.Width() * 3,sizeof(DWORD)),1);

We expected that exportData() would output the data in the specified format (24 bits per pixel) but the end result is garbage - pretty colors but garbage none the less.

Using C++ 6.0 with Geo SDK 4.0.9.713

Any help would be appreciated.

[mpg]

The LTISceneBuffer is designed around the data type of the data source -- in this case, 16-bit unsigned data.

If you want to convert your data to 8-bit, you need to add an image stage after the reader which does the conversion. I think there is some demo code showing how to do this in the examples directory.

-mpg