siOnBeginCommand does indeed appear to fit the bill. Adding even a single component to the mesh using the normal tools would be enough to make everything collapse, so I would like to consider it warranted.
Thanks! On Sun, Oct 20, 2013 at 8:47 AM, Martin <[email protected]> wrote: > A simple event with something than stops the user and make him think in > what is he doing (a msgbox perhaps) and then cancel the command should be > good enough to make him use the correct tool. And very easy to write and > disable. > > Martin > Sent from my iPhone > > > On 2013/10/20, at 14:50, Chris Chia <[email protected]> wrote: > > > > +1 > > Do it carefully. > > > > > >> On 20 Oct, 2013, at 11:40 AM, Alok Gandhi <[email protected]> > wrote: > >> > >> In my opinion, overriding the commands is not advisable. You are > effectively removing the native funtionality of the app, which might be > needed in certain cases, if not now, then in future. > >> > >> Yes you can do it by hooking into the command events but note that the > command is still going to finish doing what it is supposed to. You can only > do some pre/post stuff. In your case, for example, you can nullify the > extrude in a post procedure and proceed to your custom extrude. You also > call undo but not all commands support it. > >> > >> I would still consider overriding commands as a bad practice. Maybe in > some extreme scenario you can, if the situation absolutely warrants it. In > such case you have to remember which commands you have overridden and how, > so that you can restore the original behaviour when need be. You have to > baby-sit it basically. > >> > >>> On Oct 19, 2013, at 9:24 PM, Mathias N <[email protected]> wrote: > >>> > >>> Is it at all possible to intercept and override commands made by the > user? > >>> > >>> For instance, in my case I need to make a number of other changes > every time the user extrudes something. > >>> At the moment I have implemented my own separate extrude command, but > I imagine the user would often end > >>> up using the normal extrude tool purely out of habit. > >>> > >>> It would be nice to be able to prevent them from doing so, or better > yet redirect it to my own custom command. > > > >
