[GRASS-dev] New histogramming tool for GRASS 7

[Michael Barton]

Thanks for taking a look Martin.

I'm not sure how you can get to histogram2 from anything other than the toolbar button menu. I've tried it from the image menu and from the original histogram toolbar button menu and get the original histogram tool. How else are you getting it to launch?

Histogram2 shares virtually nothing with Histogram code-wise. It is a completely different kind of module. However it does share a significant fraction of code with profile.py (which I used as a starting point). I'm thinking about a scatterplot tool for image analysis too. All 3 would use PyPlot and could in theory share considerable chunks of code. 

Michael
____________________
C. Michael Barton
Director, Center for Social Dynamics & Complexity 
Professor of Anthropology, School of Human Evolution & Social Change
Arizona State University

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On Sep 22, 2011, at 8:26 AM, Martin Landa wrote:

> Hi,
> 
> 2011/9/22 Michael Barton <Michael.Barton at asu.edu>:
>> Something that I've thought about for quite awhile but only now managed to
>> get around to doing. I have added a new histogramming tool to GRASS 7, based
>> on PyPlot like the profiling tool. It will histogram a single raster map or
>> all the maps in an imagery group. It gives user control over colors and line
>> styles, axes, legends, fonts, and grid.
>> It is available from the analysis toolbar button on the display canvas as
>> "Create histogram with PyPlot" for now. I've left in the old tool that
>> displays d.hist in a window. It should be especially useful for image
>> analysis.
> 
> cool!
> 
>> Give it a try and let me know if you hit any bugs.
> 
> yes, both Histogram and Histogram2() launched PyPlot-based
> histogramming tool, fixed (including some cosmetics changes in
> r48410).
> 
> I also worry about duplication of the code. Ideally
> histogram.HistFrame and histogram2.HistFrame should have common
> superclass. Same probably for histogram2.HistFrame and
> profile.ProfileFrame.
> 
> Martin
> 
> -- 
> Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa