QCAD Bugtracker

  • Status Closed
  • Percent Complete
  • Task Type Bug Report
  • Category QCAD (main)
  • Assigned To
  • Operating System Windows 7
  • Severity Low
  • Priority Very Low
  • Reported Version 3 Beta 3
  • Due in Version Undecided
  • Due Date Undecided
  • Votes
  • Private
Attached to Project: QCAD Bugtracker
Opened by kurt - 09.11.2011
Last edited by Andrew - 11.12.2011

FS#378 - Poor performance when trying to move multiple entities

I have a dwg file and find the performance very poor when trying to move an entity. QCAD3 beta 3 appears incapable of performing the necessary calculations for the “Auto Snap” when trying to select the reference point (the mouse pointer does not track the path). If Auto Snap is turned off there is no performance issue.

I can provide a problem file (via email) but am unable to upload it to the internet as it is a proprietary drawing.

Closed by  Andrew
11.12.2011 00:01
Reason for closing:  Fixed
Andrew commented on 09.11.2011 12:38

Please provide example file via e-mail, thanks.

Andrew commented on 09.11.2011 12:38

Please note also that your version of QCAD is not up to date. The current version is QCAD 3, RC1 (although the update will likely not improve performance).

kurt commented on 09.11.2011 12:50

I have installed RC1 just now and the same phenomena is present.

Andrew commented on 12.11.2011 09:50

Internal note: Performance has been improved a lot in the latest development version. More improvements are possible by passing the query box to all calls of getShapes(). This affects drawings with block references only.

kurt commented on 16.11.2011 10:32

this phenomena is emphasised when drawing iso projections that contain circles. if you create a file containing a 5.4 m circle (as an example) drawn in mm and create an iso projection the resulting entity is a polyline and not an ellipse? the polyline has 33 931 vertices and begins to affect performance based on the same observation above. it would be ideal to have circles and ellipses when projected to be projected as ellipses as the mathematical transformation is well known and would eliminate the observed performance issue under these circumstances.

Andrew commented on 18.11.2011 19:44

The ISO projection issue is covered by a separate task:
 FS#397  - ISO project: circles and arcs as ellipses


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