Bug report #1008: zoom to layer missbehaves when the layer is a single vector point - QGIS Application - QGIS Issue Tracking

Bug report #1008

zoom to layer missbehaves when the layer is a single vector point

Added by Maciej Sieczka - over 16 years ago. Updated about 15 years ago.

Status:	Closed
Priority:	Low
Assignee:	nobody -
Category:	Map Canvas
Affected QGIS version:		Regression?:	No
Operating System:	All	Easy fix?:	No
Pull Request or Patch supplied:		Resolution:	fixed
Crashes QGIS or corrupts data:		Copied to github as #:	11068

Description

1. Open the attached shapefile in QGIS.

2. Zoom to layer.

3. Map canvas becomes blank. Current map scale dialog does not get updated. Zoom tools start behaving strange - mouse scroll zooming does not work, click-zoom in/out and box-zoom out either. Only box-zoom in is OK. Once you box-zoom in or zoom to another layer all is fine again.

Debug output after zoom to single point layer:

Debug: /home/shoofi/src/straight/qgis09/src/gui/qgsmapcanvas.cpp: 452: (setExtent) Setting empty extent!
Debug: /home/shoofi/src/straight/qgis09/src/core/qgsmaprender.cpp: 202: (render) ========== Rendering ==========
Debug: empty extent... not rendering
[[QgsGrassPlugin]]::postRender()

Might be related to #651 #154 and #80.

pts.tar.bz2 - single vectro point Shapefile (608 Bytes) Maciej Sieczka -, 2008-03-25 10:37 AM