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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
| 0012840 | ParaView | (No Category) | public | 2012-01-05 03:23 | 2016-08-12 09:59 | ||||
| Reporter | Arno Mayrhofer | ||||||||
| Assigned To | Kitware Robot | ||||||||
| Priority | normal | Severity | minor | Reproducibility | have not tried | ||||
| Status | closed | Resolution | moved | ||||||
| Platform | OS | OS Version | |||||||
| Product Version | 3.12 | ||||||||
| Target Version | Fixed in Version | ||||||||
| Summary | 0012840: Threshold filter lowers precision of Points data | ||||||||
| Description | How to reproduce: 1.) Open a file that stores positions in double precision. 2.) Apply Threshold filter 3.) Look at point data in spreadsheet view Before the point data in spreadsheet view was double precision, after applying the filter the point data is only in single precision. I'm not a 100% sure but can this be related to line 40 in VTK/Graphics/vtkThreshold.cxx which reads this->PointsDataType = VTK_FLOAT; | ||||||||
| Tags | No tags attached. | ||||||||
| Project | TBD | ||||||||
| Topic Name | |||||||||
| Type | incorrect functionality | ||||||||
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| Notes | |
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(0027900) Arno Mayrhofer (reporter) 2012-01-05 03:38 |
I can confirm that changing VTK/Graphics/vtkThreshold.cxx:40 from this->PointsDataType = VTK_FLOAT; to this->PointsDataType = VTK_DOUBLE; fixes the issue. It would be nice if this could be included in the next release. |
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(0027901) Robert Maynard (developer) 2012-01-05 13:51 |
I would expect the correct solution is that by default the threshold points inherit the data type of the input DataSet. |
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(0027904) Arno Mayrhofer (reporter) 2012-01-06 02:12 |
Yeah you are right. I didn't know how to do this though and unfortunately lack the time to look into it any deeper. |
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(0027994) yifei wu (reporter) 2012-01-27 14:44 |
Arno, the code you changed is the default constructor. I believe in order to get it for double, you have to manually invoke // Description: // Set the data type of the output points (See the data types defined in // vtkType.h). The default data type is float. void SetPointsDataTypeToDouble() { this->SetPointsDataType( VTK_DOUBLE ); } void SetPointsDataTypeToFloat() { this->SetPointsDataType( VTK_FLOAT ); } Is there a method to id the datatype? If so, we can probably automatically overwrite the default. |
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(0038120) Kitware Robot (administrator) 2016-08-12 09:59 |
Resolving issue as `moved`. This issue tracker is no longer used. Further discussion of this issue may take place in the current ParaView Issues page linked in the banner at the top of this page. |
| Notes |
| Issue History | |||
| Date Modified | Username | Field | Change |
| 2012-01-05 03:23 | Arno Mayrhofer | New Issue | |
| 2012-01-05 03:38 | Arno Mayrhofer | Note Added: 0027900 | |
| 2012-01-05 13:51 | Robert Maynard | Note Added: 0027901 | |
| 2012-01-06 02:12 | Arno Mayrhofer | Note Added: 0027904 | |
| 2012-01-27 14:44 | yifei wu | Note Added: 0027994 | |
| 2016-08-12 09:59 | Kitware Robot | Note Added: 0038120 | |
| 2016-08-12 09:59 | Kitware Robot | Status | backlog => closed |
| 2016-08-12 09:59 | Kitware Robot | Resolution | open => moved |
| 2016-08-12 09:59 | Kitware Robot | Assigned To | => Kitware Robot |
| Issue History |
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