0004124: Sketcher angle produces errors when units set in m/kg/degree

ID	Project	Category	View Status	Date Submitted	Last Update

0004124	Sketcher	Bug	public	2019-09-11 20:43	2021-02-20 17:33

Reporter	dimitar	Assigned To
Priority	normal	Severity	minor	Reproducibility	random
Status	new	Resolution	open
Platform	Windows	OS	Windows	OS Version	10
Product Version	0.18
Target Version	0.20

Summary	0004124: Sketcher angle produces errors when units set in m/kg/degree
Description	Sketcher Angle produces errors when in meters constantly when creating angle constraints. As per the forum below, it seems to be an imprecision issue. Even, as in the suggestion of the forum, creating enabling advanced solver, and enabling sketch size multiplier, the issue persists. Forum thread: https://forum.freecadweb.org/viewtopic.php?f=3&t=37716&hilit=angle
Steps To Reproduce	1. Create a sketch 2. Create 2 lines a good distance away from the sketch origin 3. Add angle constraint 4. Leave the sketch 5. Adjust the angle constraint in the sketch properties 6. Sometimes the sketch fails to recompute throwing an Sketcher Invalid Constraint Index 22 or just an Error or Error 3.
Additional Information	OS: Windows 10 Word size of OS: 64-bit Word size of FreeCAD: 64-bit Version: 0.18.16117 (Git) Build type: Release Branch: releases/FreeCAD-0-18 Hash: dbb4cc6415bac848a294f03b80f65e888d531742 Python version: 3.6.6 Qt version: 5.6.2 Coin version: 4.0.0a OCC version: 7.3.0 Locale: English/UnitedKingdom (en_GB)
Tags	#pending-forum, units

FreeCAD Information

dimitar 2019-09-11 20:43 reporter	edgeAngleError.FCStd (13,889 bytes)

dimitar 2019-09-12 00:26 reporter ~0013582	I've started another thread with a fresh example. In the attached file, if the spreadsheet number gets changed, the angle sometimes adjusts itself, sometimes it doesn't. https://forum.freecadweb.org/viewtopic.php?f=3&t=39276 angled constraints issues.FCStd (18,534 bytes)

dimitar 2019-09-13 17:05 reporter ~0013592	i've just experienced this behavior with a radius constraint. I suspect it must be a rounding issue due to the fact that I am working in meters. In the following example, if i change the radius from 70m to 50m, i get the following error, also, if i go down to what it gives me and then try to go back up I also get and invalid constraints with index 8. FreeCAD_Dv3e0Ajbbs.png (29,945 bytes) FreeCAD_Dv3e0Ajbbs.png (29,945 bytes) FreeCAD_wjaJcbFmgB.png (20,931 bytes) FreeCAD_wjaJcbFmgB.png (20,931 bytes) constraints issue.FCStd (15,072 bytes)

Kunda1 2021-02-20 17:33 administrator ~0015391	Moved to Sketcher category @abdullah care to take look?

yorik 2022-03-03 13:55 administrator ~0016820	This ticket has been migrated to GitHub as issue 5986.

Date Modified	Username	Field	Change
2019-09-11 20:43	dimitar	New Issue
2019-09-11 20:43	dimitar	File Added: edgeAngleError.FCStd
2019-09-12 00:26	dimitar	File Added: angled constraints issues.FCStd
2019-09-12 00:26	dimitar	Note Added: 0013582
2019-09-12 16:24	Kunda1	Tag Attached: units
2019-09-12 16:24	Kunda1	Tag Attached: #pending-forum
2019-09-13 17:05	dimitar	File Added: FreeCAD_Dv3e0Ajbbs.png
2019-09-13 17:05	dimitar	File Added: FreeCAD_wjaJcbFmgB.png
2019-09-13 17:05	dimitar	File Added: constraints issue.FCStd
2019-09-13 17:05	dimitar	Note Added: 0013592
2021-02-06 06:50	abdullah	Target Version	=> 0.20
2021-02-20 17:32	Kunda1	Project	FreeCAD => Sketcher
2021-02-20 17:33	Kunda1	Note Added: 0015391