3D surface plot options needs improvement

[Keith Brown]

The Surface Plot Options dialog seems to have a lot of the same problems as the General Plot options did before #7865.

Basically the dialog has the following problems:

• It doesn't remember data after switching between axes on the Scale and Axis tabs.
• It bypasses it's own apply button in a few cases.
• The Apply button only applies the options from that current tab and (in the case of scale and axis tabs) axis.
• Numerical fields only use text entry fields, when they could be spinboxes.
• The dialog can't be invoked by right clicking on the graph.

There are also a couple of issues with the invoking format menu.

• A lot of the options in the format menu (when a 3D plot is the window in focus) could be put into that dialog.
• The format menu has four different options for opening this dialog, just under a different tab.

Improve the dialog so that it fixes (or at least improves on) each of the highlighted points.

[Nick Draper]

bulk move to assigned at the into of the triage step

[Stuart Campbell]

This ticket has been transferred to github issue ​9148