I have a problem to display elevation data with pseudocolours. The channel 1 is from -3.40282e+38 to 149.717 . A colleague used 1.7. and it looks like it should (from blue to Red) when I use QGis 1.8 the complete raster is red with an unreasonable classified legend with four colours (three with minus values, one with maximum value red)

How do I do this?

1 Answer 1


My first guess is that -3.40282e+38 is the Null value and that your colleague's system correctly recognized and handled that but it doesn't work on your system.

Try specifying the null value or just create a colormap that makes sense.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.