[ENHANCEMENT] Add fillet and radius parameter to Workplane.rect() method

[Jojain]

Hello,

I found myself needing to have a rounded rectangle to loft to, and realized that rect() doesn't have, fillet or chamfer parameters.
Since offset2D and chamfer2D have been implemented some time ago I think supporting this could be nice.

Looking at the source code for rect() it doesn't seems too complicated to implement.

For reference here a quick plugin I made that do rounded rect :

def rounded_rect(self, xlen, ylen, fillet_radius):
    rect = cq.Workplane().rect(xlen, ylen).val()
    pts = rect.Vertices()
    rect = rect.fillet2D(fillet_radius, pts)
    return self.eachpoint(lambda loc: rect.moved(loc), True)
cq.Workplane.rounded_rect = rounded_rect

[adam-urbanczyk]

In terms of API we want to go in a different direction - define a separate cq.Sketch class (similar to cq.Workplane but only for 2D) that will handle this kind of operations and will be integrated with cq.Workplane.

[Jojain]

I see, is it then planned to move all the 2D geometry from cq.Workplane to cq.Sketch ? (i.e rect, circle, ellipse, etc.).
Is cq.Sketch planned soon ? Or it's a long term view ?

[jmwright]

@Jojain No ETA on this feature yet. It will depend on when someone has both the time and motivation to tackle it. Here are a couple of related issues.

1. Implement Parametric 2d sketching #42
2. The idea of adding a sketchlet function into the 2D operations #52

[fozbstudios]

so is this still a no go with the other feature with no ETA? The code seems to be right there. Even if it is a band-aid eventually rendered moot by sketch(), does it hurt anything?

[adam-urbanczyk]

Pretty much yes, I'm working on sketching. In the meantime you can use the code above as a plugin.