Check if rhino object was moved (Python)

Hello. Is it possible to automatically recalculate python component when geometry in rhino document was moved or changed? Also I need to know an id of the object that was moved.

On the picture below I used timer to update all geometry. But it becomes slow with a large number of geometry and components. So I need to update geometry that really needs to be updated.

Replies to This Discussion

Permalink Reply by emlplsn on June 17, 2015 at 5:32pm

Good question. Every time I've bumped in to this problem I have solved it with a timer, as you have done above. Would be interesting to know if anyone has found a better solution. Feels like it should be possible to track down the event handler of the specific object if you know the Id..

Permalink Reply by Jason Lim on June 24, 2015 at 10:27am

Hi,

Here's a solution that appears to work. The key idea is to attach a callback function to the AddRhinoObject event.

See: http://discourse.mcneel.com/t/monitor-mouse-event/4481/3

Attachments:

150624_event.gh, 7 KB

Permalink Reply by Mkr on June 27, 2015 at 9:56am

Thank you! It's working and it's great!

Permalink Reply by Mkr on June 27, 2015 at 10:02am

As I understood function will be removed from event when you are closing Rhino. Is it right?

Permalink Reply by Nik Willmore on June 24, 2015 at 11:18am

Can't you just assign the object to a brep and input that to your Python script with a wire and let Grasshopper issue a recalculation when it changes in the Rhino doc?

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