Part Design draft angle does not accept units

nahshon · Post by **nahshon** » Mon Aug 12, 2019 6:26 pm

I tried to get the graft angle from an expression with unit '10 deg'. The dialog accepted the units but when I confirmed with "OK" I got an unexpected error message "std::bad_cast".

: err1.png (50.86 KiB) Viewed 881 times

Then I tried to do that using the property panel and got the explanation, units are not expected here!

The attachment err2.png is no longer available

It looks like a bug, I do not know what's the expected behavior. Is there a way to allow units and maintain compatibility with documents that do not use units?

TheMarkster · Post by **TheMarkster** » Mon Aug 12, 2019 6:54 pm

The property type chosen for the Angle is FloatConstraint rather than Angle, not sure why. A workaround is to add /deg to your formula.

For example, suppose you have an angle constraint in a sketch you want to refer to for the draft angle.

Instead of

Sketch.Constraints.my_angle

you would use

Sketch.Constraints.my_angle/deg

nahshon · Post by **nahshon** » Mon Aug 12, 2019 8:38 pm

I know the work-around. Looking for a real fix.

Post by **chrisb** » Mon Aug 12, 2019 9:17 pm

TheMarkster wrote: ↑Mon Aug 12, 2019 6:54 pm Sketch.Constraints.my_angle/dev

Typo?
Sketch.Constraints.my_angle/deg

TheMarkster · Post by **TheMarkster** » Mon Aug 12, 2019 9:42 pm

chrisb wrote: ↑Mon Aug 12, 2019 9:17 pm
TheMarkster wrote: ↑Mon Aug 12, 2019 6:54 pm Sketch.Constraints.my_angle/dev
Typo?
Sketch.Constraints.my_angle/deg

Good eye.

TheMarkster · Post by **TheMarkster** » Tue Aug 13, 2019 2:57 am

https://github.com/FreeCAD/FreeCAD/pull/2423

Part Design draft angle does not accept units

Part Design draft angle does not accept units

Re: Part Design draft angle does not accept units

Re: Part Design draft angle does not accept units

Re: Part Design draft angle does not accept units

Re: Part Design draft angle does not accept units

Re: Part Design draft angle does not accept units