[GRASS-dev] [GRASS GIS] #1787: Profile Analysis Tool Problems

[GRASS GIS]

#1787: Profile Analysis Tool Problems
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 Reporter:  stu                     |       Owner:  grass-dev@…              
     Type:  defect                  |      Status:  new                      
 Priority:  major                   |   Milestone:  7.1.0                    
Component:  wxGUI                   |     Version:  svn-trunk                
 Keywords:  profile tool r.profile  |    Platform:  All                      
      Cpu:  x86-64                  |  
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Comment(by mlennert):

 Replying to [comment:11 annakrat]:
 > Replying to [comment:9 annakrat]:
 > > Replying to [comment:7 dadudeman]:
 > > > Used r.profile interactively in GRASS 7.1 SVN.  Same problems
 described by stu.  If I use horizontal and vertical units of meters, the
 plot is perfect.  If I change to horizontal and vertical units of feet,
 the Y axis of elevations is displayed correctly, but the X axis is
 squished to stop at the unit value in meters rather than feet.  Example:
 I had a 800 meter transect, but when reprojected to feet and profiled, the
 graph stops at 800 feet rather than the approximate 2600.  The endpoint
 triangle, however, is placed around the 2600 distance.  It's as if it
 thinks the units are meters horizontal.
 > >
 > > Yes, it's meters because meters come from r.profile and the GUI
 profiling tool just takes the values as they are. I wonder if this should
 be changed in r.profile rather than in the GUI?
 >
 > I fixed this problem in GUI (r61269). Please test. Still it would be
 worth changing the behavior of r.profile (and then revert this commit).

 This immediately raises once again the question of whether such temporary
 workaround fixes are really a good idea, especially when we know that a
 fix is actually needed elsewhere. Now that this actually seems to work,
 the needed fix is in risk of oblivion.

 I personally would plead for not applying such temporary fixes...

 Moritz

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Ticket URL: <https://trac.osgeo.org/grass/ticket/1787#comment:13>
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