[GRASS-dev] [GRASS GIS] #912: r3.mapcalc depth() and z() function upside down

[GRASS GIS]

#912: r3.mapcalc depth() and z() function upside down
----------------------+-----------------------------------------------------
  Reporter:  ayepri   |       Owner:  grass-dev@…              
      Type:  defect   |      Status:  closed                   
  Priority:  normal   |   Milestone:  6.4.0                    
 Component:  Default  |     Version:  unspecified              
Resolution:  fixed    |    Keywords:                           
  Platform:  All      |         Cpu:  Unspecified              
----------------------+-----------------------------------------------------
Changes (by huhabla):

  * status:  new => closed
  * platform:  MacOSX => All
  * resolution:  => fixed


Comment:

 This issue should be fixed in trunk r52769, 6.4.svn r52771 and 6.5.svn
 r52772.
 Now the z-coordinate is computed from bottom to the top.


 Example:
 {{{
 GRASS 7.0.svn (TestLL):~ > g.region b=0 t=100 n=90 s=-90 e=180 w=-180
 res3=20 res=20 -p3
 projection: 3 (Latitude-Longitude)
 zone:       0
 datum:      wgs84
 ellipsoid:  wgs84
 north:      90N
 south:      90S
 west:       180W
 east:       180E
 top:        100.00000000
 bottom:     0.00000000
 nsres:      20
 nsres3:     20
 ewres:      20
 ewres3:     20
 tbres:      20
 rows:       9
 rows3:      9
 cols:       18
 cols3:      18
 depths:     5
 cells:      162
 cells3:     810
 GRASS 7.0.svn (TestLL):~ > r3.mapcalc  expr="test = z()" --o
  100%
 GRASS 7.0.svn (TestLL):~ > r3.out.vtk input=test output=/tmp/test.vtk --o
 && paraview --data=/tmp/test.vtk
  100%
 }}}
 Result see attachment: r3mapclac_paraview_z_coordinate.png

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Ticket URL: <http://trac.osgeo.org/grass/ticket/912#comment:1>
GRASS GIS <http://grass.osgeo.org>