QCAD Bugtracker

  • Status Closed
  • Percent Complete
  • Task Type Bug Report
  • Category QCAD (main)
  • Assigned To
  • Operating System All
  • Severity Low
  • Priority Very Low
  • Reported Version 3.24.2
  • Due in Version Undecided
  • Due Date Undecided
  • Votes
  • Private
Attached to Project: QCAD Bugtracker
Opened by Dmitry - 11.02.2020
Last edited by Andrew - 11.02.2020

FS#2042 - linetangent can't draw a tangent to arc through a point on that arc

Very often I need to draw a tangent line through a point on the arc or circle. Currently I solve this by drawing the perpendicular in that point and then the perpendicular to that perpendicular. As this problem is solvable I set the severity to “Low”.

But I think linetangent should be able to draw such tangents. And I think this tool should firstly ask for arc or circle and only then for a point. Currently linetangent firstly asks for a point.

Closed by  Andrew
11.02.2020 09:44
Reason for closing:  Not a bug
Dmitry commented on 11.02.2020 08:15

I found that Librecad 2.1.2 are able to draw that kind of tangent lines.

And actually the input order isn't important for me.

Andrew commented on 11.02.2020 09:44

This tool draws a line from a point to an arc, tangentially to that arc. If the point is on the arc, the line would have a length of zero.

You might want to use Draw > Line > Relative Angle instead with a relative angle of 0.

Dmitry commented on 11.02.2020 10:02

Thank you


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