QCAD Bugtracker

  • Status Closed
  • Percent Complete
  • Task Type Bug Report
  • Category QCAD (main)
  • Assigned To
  • Operating System Windows 10
  • Severity Low
  • Priority Very Low
  • Reported Version 3.21.2
  • Due in Version Undecided
  • Due Date Undecided
  • Votes
  • Private
Attached to Project: QCAD Bugtracker
Opened by Ahmed Sadek - 21.08.2018
Last edited by Andrew - 21.08.2018

FS#1800 - circle/arc intersection bug with line

There is a case that qcad do not detect intersection between a circle/arc and a line. Attached is an example.

Closed by  Andrew
21.08.2018 08:05
Reason for closing:  Not a bug
28.08.2018 : A request to re-open the task has been made. Reason for request: The dxf files generated by QCad has this problem. I do not use any other software. If it cannot be fixed, we need a facility to reset all Z coordinates to zero.
Andrew commented on 21.08.2018 08:05

The line is not on Z level 0, but slightly off 0 (3D) which means there is no intersection with the arc on Z level 0.

Ahmed Sadek commented on 27.08.2018 11:35

It is not clear to me, why QCad might change the Z level while the whole drawing is a 2D one. I cannot see in the software that we can embed any 3D (Z) coordinates for any element. How I can solve this problem ?

Andrew commented on 27.08.2018 11:42
It is not clear to me, why QCad might change the Z level while the whole drawing is a 2D one.

Those coordinates come from the DXF file.

How I can solve this problem ?

Edit > Application Preferences > Widgets > Property Editor > Show Z coordinates

Note that Z is shown as 0 as it's extremely close to 0.
Change Z to something else (e.g. 5)
Change Z back to 0

Ahmed Sadek commented on 27.08.2018 11:47

Thank you for the information. But it is still a bug. I start the drawing on QCad, why it changes the Z coordinates. and it makes the design process more complicated if the intersection detection is needed with a part of a block, which will make me explode the block and re-set the Z coordinates by hand. The Z coordinates should not change as the whole drawing is 2D. Can we have facility to reset all z coordinates to 0 in a drawing ?


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