- fixed wrong zigzag direction

git-svn-id: svn://svn.code.sf.net/p/gwyddion/code@16767 25697fe4-d644-49b8-9d30-be5465f2adf3
- Z values printed in legend

git-svn-id: svn://svn.code.sf.net/p/gwyddion/code@16768 25697fe4-d644-49b8-9d30-be5465f2adf3
- Small title fix

git-svn-id: svn://svn.code.sf.net/p/gwyddion/code@16769 25697fe4-d644-49b8-9d30-be5465f2adf3