Morph shear a rectangle

Does anyone know a nice way to morph a rectangle so one of the shorter sides becomes shortened...

I want to create a draft angle on the rectangle, preferably with slider control on the angle.

I could do this by getting the corner points and moving the bottom 2 points, then joining back together, but I wondered if there was a nicer way of doing this? Been looking in the Transform menu but not seen anything yet.

Replies to This Discussion

Permalink Reply by Joseph Oster on January 12, 2016 at 5:46pm

Attachments:

morph_box_2016_Jan12a.gh, 11 KB

Permalink Reply by martyn hogg on January 12, 2016 at 5:53pm

ah, nice! I've just been trying the spatial deforms but they curve the sides!

Thanks!

Permalink Reply by martyn hogg on January 12, 2016 at 5:55pm

(just waiting for the dreaded Not Responding situation to clear after plugging curvy rectangles into the rest of my definition then I'll try that!)

Zzzzzzzz.....

Permalink Reply by Joseph Oster on January 12, 2016 at 7:08pm

To be formal about this, I guess I should have used 'Control Points (CP)' instead of 'Discontinuity (Disc)', though am a little surprised this works considering there are five control points, not four...

Attachments:

morph_box_2016_Jan12b.gh, 11 KB

Permalink Reply by martyn hogg on January 13, 2016 at 6:30am

That was the reason I avoided PDeform in the first place... Control points made no sense to me for a rectangle!

Permalink Reply by David Rutten on January 13, 2016 at 7:13am

It's five points because the first and last point are in the same place. If the polyline curve which represents the rectangle only had four points, it would be missing the fourth edge.

Permalink Reply by Joseph Oster on January 13, 2016 at 7:18am

And apparently when two control points are in the same place like this, 'PDeform' moves both of them as if they are a single point?

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