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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
| 0007308 | ParaView | (No Category) | public | 2008-07-08 15:16 | 2010-12-13 16:18 | ||||
| Reporter | ufnoise | ||||||||
| Assigned To | Dave DeMarle | ||||||||
| Priority | normal | Severity | feature | Reproducibility | always | ||||
| Status | closed | Resolution | won't fix | ||||||
| Platform | OS | OS Version | |||||||
| Product Version | |||||||||
| Target Version | Someday | Fixed in Version | |||||||
| Summary | 0007308: Please add new filter for colormap | ||||||||
| Description | Please allow an addition checkbox when editing the color map. Two candidates: log(abs(x) + smallvalue) asinh(x) This colormap filter would allow visualization of signed exponentially varying quantities. | ||||||||
| Additional Information | In semiconductor devices, the net doping is a signed quantity which can very exponentially. It is typical in most device simulation packages as it refers to the signed number of donors (positive) and acceptors (negative). Other candidates for a colormap options would be a "Use log of the absolute value", or even "Use asinh scale". | ||||||||
| Tags | No tags attached. | ||||||||
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(0012662) Ken Moreland (manager) 2008-07-08 17:01 |
I don't think the log(abs(x) + smallvalue) will work. In my experience what often happens is that if you just pick some very small value for the minimum, the majority of the scale gets placed below the range where values are. For example, if you pick 1e-300 for the smallvalue and you apply that to a data range from 0 to 1e10, any values above 1 will be in the top 3% of the scalar bar. When using a table map of 256 values (the default), all of these values will be the same (top) color. Raising the value of smallvalue is equally problematic. If you raise it too high, you will miss information at the lower end of the range. |
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(0023883) Dave DeMarle (administrator) 2010-12-10 14:09 |
If you still want to see this feature in ParaView please submit an idea to user voice. |
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(0023939) Alan Scott (manager) 2010-12-13 16:18 |
Agreed. Please post this request to User Voice. |
| Notes |
| Issue History | |||
| Date Modified | Username | Field | Change |
| 2008-07-08 15:16 | ufnoise | New Issue | |
| 2008-07-08 17:01 | Ken Moreland | Note Added: 0012662 | |
| 2009-05-13 13:49 | Utkarsh Ayachit | Target Version | => Someday |
| 2010-12-10 14:09 | Dave DeMarle | Note Added: 0023883 | |
| 2010-12-10 14:09 | Dave DeMarle | Status | backlog => @80@ |
| 2010-12-10 14:09 | Dave DeMarle | Resolution | open => won't fix |
| 2010-12-10 14:09 | Dave DeMarle | Assigned To | => Dave DeMarle |
| 2010-12-13 16:18 | Alan Scott | Note Added: 0023939 | |
| 2010-12-13 16:18 | Alan Scott | Status | @80@ => closed |
| 2011-06-16 13:10 | Zack Galbreath | Category | => (No Category) |
| Issue History |
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