Undo For A Custom Manipulator?

[olihey]

Hi,

I have a manipulator that similar to the Std-Maya-moveTool but only move objects in defined steps.

Now I want to give the user an ability to undo the changes he/she made with the manipulator!
How do I do this???

I have overwritten the doDrag()-method of the MPxManipContainer class and change the values on all selected objects according to the changes of the MFnFreePointTriadManip!

Please help!!!

[rob-bateman]

the only way you can impliment undo is to use mel script. Either make the manipulator perform the actions via mel, or use an MPxToolCommand with a context (ie, make the manips as part of a tool, rather than attached to a specific node type). That should allow you to use the manips as a proper maya tool with undo. Ultimately, either way it still has to impliment undo via mel.

[olihey]

Thanks for the tip!
I now use MGlobal::executeCommand to fire a bunch of "move"-Mel-commands to have undo! Not nice, but it works pretty good!

[joojaa]

QUOTE(olihey @ 04/18/06, 12:19 PM) [snapback]234619[/snapback]
I have a manipulator that similar to the Std-Maya-moveTool but only move objects in defined steps.

just out of curiosity how exactly cant you use mayas internal manipulator do this? Imean it has a dsicrete move option, Also having ggridsnap on has similliar behaivour altough not exactly.

[olihey]

When have a grid with different sizes for x,y and z!