Ticket #445 (closed task: fixed)
Opened 2011-04-20T16:37:59-05:00
Last modified 2013-09-16T14:54:05-05:00
Add unit support to IJ2 as needed
| Reported by: | bdezonia | Owned by: | curtis |
|---|---|---|---|
| Priority: | major | Milestone: | imagej2-b8-analysis |
| Component: | Core | Version: | |
| Severity: | serious | Keywords: | |
| Cc: | Blocked By: | #1999 | |
| Blocking: |
Description (last modified by bdezonia)
Add the capability to tag axes with units. Curtis had planned to use an existing Java library for this support. I'm not sure if this should be done at the imglib level or the imagej2 level.
Change History
comment:2 Changed 2011-04-29T14:56:30-05:00 by bdezonia
- Summary changed from Add unit support to as needed to Add unit support to IJ2 as needed
comment:3 Changed 2011-10-24T14:50:58-05:00 by bdezonia
- Milestone changed from imagej-2.0-beta1 to imagej-2.0-beta2
comment:4 Changed 2011-10-25T09:28:03-05:00 by bdezonia
- Owner changed from bdezonia to curtis
- Status changed from new to assigned
Curtis, this could be part of the project to meld dimensions and axes and calibration values. I'm assigning to you for now and you can modify that ticket as you see fit or assign this back.
comment:5 Changed 2012-05-14T15:55:52-05:00 by curtis
- Blocking 490, 564 removed
- Milestone changed from imagej-2.0.0-beta3 to imagej-2.0.0-beta4
We should consider using the Units of Measurement API, probably the JScience implementation thereof. See this thread on imagej-devel for details.
comment:7 Changed 2012-08-14T15:55:58-05:00 by bdezonia
- Blocking 564 added
(In #564) Don't know why blocked by 445 was removed. The implementation of this feature requires one to display units in the info window.
comment:8 Changed 2012-09-06T14:30:31-05:00 by curtis
- Blocking 9 added; 1333 removed
- Milestone changed from imagej-2.0.0-beta4 to imagej-2.0.0-beta5
comment:10 Changed 2012-10-24T11:41:45-05:00 by bdezonia
Note that Roger Leigh is working on the roi-model through the SciJava group and he has mentioned in his notes the usefulness of physical units at the SciJava level.
comment:11 Changed 2012-12-03T13:16:12-06:00 by curtis
As discussed in #imagejdev today, the other possibility we had been considering is UCAR Units. But from what I have read so far, I like JScience better right now. Requires further investigation as part of this ticket, of course.
comment:12 Changed 2012-12-03T16:08:19-06:00 by aivar
Other possibilities that might work:
Units of Measurement API
http://code.google.com/p/unitsofmeasure/
Frink Interpreter
http://futureboy.us/frinkdocs/
http://futureboy.us/frinkdocs/#EmbeddingFrink
comment:13 Changed 2012-12-03T16:14:51-06:00 by dscho
How well researched are unitsofmeasure and frink? Curtis spent a considerable amount of time to investigate the strengths and weaknesses of ucar-units and JScience. Before considering to use alternatives, those alternatives should be equally well investigated.
comment:14 Changed 2012-12-04T09:42:52-06:00 by curtis
The Units of Measurement API is a specification, not an implementation. The JScience code implements that specification, and is BSD licensed.
Frink looks very cool in that it targets the Android platform, but it is not open source. The license is not clear, but the binary JAR is obfuscated to make decompilation more difficult, so it is highly unlikely the author would be amenable to changing the license.
Please at least verify the license of a package before suggesting it for use with ImageJ2.
comment:15 Changed 2012-12-04T13:02:31-06:00 by dscho
Thanks, Curtis, for clarifying. You are correct, of course, in your implicit assumption that I should do the research myself in the future, rather than letting you do my homework.
comment:17 Changed 2013-03-07T12:52:07-06:00 by bdezonia
- Blocking 1620 removed
comment:18 Changed 2013-06-07T15:52:27-05:00 by curtis
- Milestone changed from imagej2-b7-ndim-data to imagej2-b8-analysis
This work is pending on the img-metadata branches of imagej.git and imglib.git. But will not make it into beta7.
comment:19 Changed 2013-08-27T11:09:53-05:00 by bdezonia
The img-metadata package was merged to master recently. Soon we can set units. But actual unit conversion still requires us to choose a unit library and use it.
comment:22 Changed 2013-08-29T15:21:14-05:00 by bdezonia
- Blocking 564 removed
(In #564) Fixed with commit 8d63e7ef9cbe902a0ad316c118b9b30a09c6f1d6
comment:23 Changed 2013-09-16T14:54:05-05:00 by bdezonia
- Status changed from assigned to closed
- Resolution set to fixed
Unit library chosen (UCAR UDUNITS).