Bug report #789: QGIS has a "hole" in my SHAPE file - QGIS Application - QGIS Issue Tracking

Bug report #789

QGIS has a "hole" in my SHAPE file

Added by Redmine Admin about 17 years ago. Updated over 15 years ago.

Status:	Closed
Priority:	Low
Assignee:	nobody -
Category:	Build/Install
Affected QGIS version:		Regression?:	No
Operating System:	Windows	Easy fix?:	No
Pull Request or Patch supplied:		Resolution:	wontfix
Crashes QGIS or corrupts data:		Copied to github as #:	10848

Description

Hi:
The attached SHAPE file is not shown correctly in QGIS. The polygon with an attribute MU equal to 31 is black and cannot be symbolized, I tried to symbolize it using the MU and the SEC_NAME attributes and it was shown in black in both cases.

Bob Bruce

History

#1 Updated by Martin Dobias about 17 years ago

It seems like you've forgotten to attach the shape file :)

#2 Updated by Redmine Admin about 17 years ago

I couldn't attach the SHAPE file, the system said that it was too big. It is 638Kb in size when zipped. I will email it to Gary and ask him to attach it.

Bob Bruce

#3 Updated by Jürgen Fischer about 17 years ago

Any progress on the testcase shape?

#4 Updated by Redmine Admin about 17 years ago

Replying to [comment:3 jef]:

Any progress on the testcase shape?

Hi Jef:
I emailed the data to Gary hoping that he could attach it but it is not here. Can you attach it if I email it to you? If so then just let me know where to send it, the zip file is about 700kb. Unfortunately I don't even have an FTP server to put it on.

Bob Bruce

#5 Updated by Jürgen Fischer about 17 years ago

go ahead jef <at> norbit.de

#6 Updated by Jürgen Fischer about 17 years ago

The file is at http://www.norbit.de/~jef/ForestManagementUnits.zip until this bug is fixed.

#7 Updated by Marco Hugentobler about 17 years ago

This works for me correctly (kubuntu linux, 0.9.1 svn). I need to test it on windows later in the day.

Marco

#8 Updated by Redmine Admin about 17 years ago

Replying to [comment:7 mhugent]:

This works for me correctly (kubuntu linux, 0.9.1 svn). I need to test it on windows later in the day.

Marco

Hi Marco:
after Jürgen said the same thing I tested it on three more Windows XP systems, all differently set up and got the same results, namely reproduced these problems (this ticket and Ticket #820).

Bob

#9 Updated by Marco Hugentobler about 17 years ago

I still cannot reproduce this problem, also on windows (both release package and current svn).

#10 Updated by Marco Hugentobler about 17 years ago

Status changed from Open to Closed
Resolution set to wontfix

Oh, I can reproduce it now. You are right, it happens if antialiasing is not enabled in the options dialog. This a most likely a Qt bug, so I'm closing this ticket. As a short-time workaround, you may enable antialiasing (Settings -> Options -> Rendering -> Make lines appear less jagged at the expense of some drawing performance). The map looks also nicer then.