|Target version:||Candidate for next bugfix release|
Running gmt 5.4.0 on ubuntu 16.04.
I'm generating grids with sph2grd, for example with L=10, M=5, C=1, S=0. When setting the normalistaion flag to -Ng, I get grids who's inner products sum to 4*pi. However, when the flag is -Nm, they appear to sum to 0.5 rather than 1.
#1 Updated by Paul about 4 years ago
- Status changed from New to Feedback
- Target version set to Candidate for next bugfix release
Would you mind showing how you computed the 0.5 so I can make a test script for this. I am looking at the code and find
plm[mm] = pmm * 0.5 / d_sqrt(M_PI);
so that 0.5 is suspicious in light of your post. But I'd like to verify first.
- Affected version changed from 5.x-svn to 6.x-svn
This is definitibvely not the place to report anything anymore - please use www.generic-mapping-tools.org for a portal to all things GMT, including the GitHub site where bugs and issues can be reported.
Looking at the code there are in fact two places where the plm[mm] = pmm * 0.5 / d_sqrt(M_PI);
type expressions appear, and it looks like Remko only fixed one as there is another where the 0.5 still lives. I will fix that in master now. You will need to build and test to be sure of send me a simple script that I can use to verify the result.