FS#1012Make threshold from which arcs are approximated as lines configurable
- Type
- Feature Request
- Status
- Closed
- Resolution
- Implemented
- Category
- QCAD (main)
- Severity
- Low
- Priority
- Low
- Reported version
- 3.4.5
- Operating system
- All
- Reported
- 2014-01-19 by ayni
- Closed
- 2014-01-21 by andrew
Tried to draw a guitar and when drawing top arch (R=10600 mm), I noticed that when arc length is less than 5% (in ths case less than 530 mm) of arcs radius arc appears totally straight both in screen and print.
Data is stored right, details are right, reference points are right, snap on entity goes right, but the line appears totally straight.
I have iMac mid 2011 with Mavericks and latest Qcad.
Comments (2)
This is expected geometric principle. Try manually using a compass and pencil you will get the same result with such short arc lengths.
To achieve what you need try using the spline tools, maybe the 'Fit to Points' option.
This is indeed expected behavior.
There is a threshold below which QCAD approximates arcs as straight lines.
I will change this report into a feature request to make that threshold configurable.