View Issue Details [ Jump to Notes ] [ Print ]
IDProjectCategoryView StatusDate SubmittedLast Update
0011504VTK(No Category)public2010-11-24 09:392016-08-12 09:55
ReporterGerald Lodron 
Assigned ToDavid Partyka 
PrioritynormalSeveritymajorReproducibilityalways
StatusclosedResolutionmoved 
Platform64 bitOSWindows 7 ProfOS Version
Product Version 
Target VersionFixed in Version 
Summary0011504: Rendering 2D Polygons and cutting 2D Poligons
Description2 Errors:

Visualization of Polygon not correct: Mismatch between surface (press 's') and wireframe visualization (press 'w'), see first rendering in main.cpp of the two attatched polgons (.vtk files)

Cutting (vtkCutter) of one of them does not work (see second visualization)

Steps To ReproduceCompile main.cpp using latest vtk and change line 23:

oReader->SetFileName("C:\\TestRectangelWithSpike.vtk");

with your file path to the two attatched vtk datas. In the first visualization press s and w and compare visualization
Additional InformationThe file "TestRectangelWithSpike.vtk" implements a polygon with a spike, here the vtkCutter fails. Also the rendering is not correct.

The file "TestRectangelWithoutSpike.vtk" is a normal konkave polygon, the surface and wireframemode looks different, vtkCutter works

TagsNo tags attached.
Project
Type
Attached Filesrar file icon Bugtest.rar [^] (1,453 bytes) 2010-11-24 09:39
jpg file icon DonutWithKeyhole.jpg [^] (185,215 bytes) 2011-04-19 04:13

 Relationships

  Notes
(0023527)
Gerald Lodron (reporter)
2010-11-24 10:17

 ok i debugged it to line 1277 of vtkPolygon:

The difference between the data sets is in function

  success = this->EarCutTriangulation();

the success returns false if there are any peaks in the datasets
(0026209)
Gerald Lodron (reporter)
2011-04-18 03:22

 Also check out result of vtkCutter when using such a polygon:

0,0
1,1
0,2
-1,3
0,4
1,3
0,2
-1,1
0,0
(0026222)
Gerald Lodron (reporter)
2011-04-19 03:35

 ok in general the problem is not caused by peaks:

the problem appears if the boundaries "touch" each other, e.g. a donout polygon drawn with a single polygon which has a key hole for connecting outher to inner:

0,0
10,0
10,10
0,10
0,0
1,1
1,9
9,9
9,1
1,1
(0026223)
Gerald Lodron (reporter)
2011-04-19 04:13

 see DonutWithKeyhole.jpg for my donut example
(0031287)
Dave DeMarle (administrator)
2013-07-22 20:33

 Dave P no longer works on the project. If these old issues still exist in 6.0.0, reopen them and assign to Dave DeMarle
(0037213)
Kitware Robot (administrator)
2016-08-12 09:55

 Resolving issue as `moved`.

This issue tracker is no longer used. Further discussion of this issue may take place in the current VTK Issues page linked in the banner at the top of this page.

 Issue History
Date Modified Username Field Change
2010-11-24 09:39 Gerald Lodron New Issue
2010-11-24 09:39 Gerald Lodron File Added: Bugtest.rar
2010-11-24 10:17 Gerald Lodron Note Added: 0023527
2011-04-14 07:45 David Partyka Assigned To => David Partyka
2011-04-14 07:45 David Partyka Status backlog => tabled
2011-04-18 03:22 Gerald Lodron Note Added: 0026209
2011-04-19 03:35 Gerald Lodron Note Added: 0026222
2011-04-19 04:13 Gerald Lodron File Added: DonutWithKeyhole.jpg
2011-04-19 04:13 Gerald Lodron Note Added: 0026223
2013-07-22 20:33 Dave DeMarle Status backlog => expired
2013-07-22 20:33 Dave DeMarle Note Added: 0031287
2016-08-12 09:55 Kitware Robot Note Added: 0037213
2016-08-12 09:55 Kitware Robot Status expired => closed
2016-08-12 09:55 Kitware Robot Resolution open => moved

Copyright © 2000 - 2018 MantisBT Team