Ability to select sketch coordinate system when creating

konstantin_shiriazdanov

I noticed that no matter how coordinate system of the plane was defined when sketch is created on the plane it always created by newSketch( ) function. I would like to have more control under the orientation of coordinate system of the sketch (be able to create user defined sketch by newSketchOnPlane()). I think this functionality can be extended by allowing user to create sketch by selecting mate connector instead of planar face. Thus one may take control under coordinate system of the sketch.

konstantin_shiriazdanov

now i tried to modify original sketch.fs to make sketch tool create sketches based on coordinate system defined by mate connector, and some strange error occuring
https://cad.onshape.com/documents/8331d15630b35a24c141111b/w/0cbd83b60224be56f674efc3/e/f4cc466621b6b86b2fb058d5

don't know why this post was mooved from improvement requestst, because it is about extending functionality of built in sketch tool

MBartlett21

+1

ilya_baran

Sketches are very special, so making a custom feature by modifying sketch.fs won't work.
We adjust the coordinate system deliberately to minimize "parametric surprise" because for a random planar face, the internal coordinate system is not predictable.  I suppose we could make an exception for mate connectors, but what is your use case?  Fancy feature patterns?

konstantin_shiriazdanov

@ilya_baran my case was to reduce the number of user defined constraints inside the sketch by selecting it coordinate system so "horizontal"/"vertical" constraints would follow user defined directions rather then some projected vectors - the more explicit control the better.

ilya_baran

Ok, after a bit of internal discussion we'll make it so you can select a sketch from a mate connector and the sketch will have the mate connector's coordinate system.

MBartlett21

+1