Used when finding subelements of a feature. Many of the comparisons used to also
check for string lengths, but as far as I can tell they are not strictly
necessary (see https://www.cplusplus.com/reference/string/string/substr/) and
just `substr` can be used without them. However, `compare` explicitly is for
comparing, and does not make a new object that `substr` does.
- Helix: the property Turns has the App::PropertyFloatConstraint thus also the pointer to it must have the same property
- LinearPattern and Helix: make constraints static class member (forgot this in commit 114bdf6b)
- Draft: make the constraint const
- PolarPattern and LinearPattern assure that the header file is loaded at last to avoid potential troubles
- Rebase App::Origin on App::DocumentObject
- Keep all control over the Origin structure inside the Origin and it's
ViewProvider
- Add OriginFeature class as common base for App::Plane and App::Line
- Rebase App::Plane and App::Line on top of newly created class and
move to the file.
- Change Origin's ViewProvider API associated with temporary display
- Lots of associated changes to files
- Several minor fixes
- Lots of new bugs
- remove StdDirection,StdAxis and StdMirrorPlane properties
- support sketch H_Axis, V_Axis, N_axis as valid references in patterns
- polish reference selection gui (unified for standard axes and custom references)
