NAME

       i.ortho.elev  - Select or modify the target elevation model.

KEYWORDS

       imagery, orthorectify

SYNOPSIS

       i.ortho.elev
       i.ortho.elev --help
       i.ortho.elev       [-p]      group=name       [project=name]        [mapset=name]        [elevation=name]
       [math_expression=string]    [units=string]    [null_value=string]    [--help]    [--verbose]    [--quiet]
       [--ui]

   Flags:
       -p
           Print currently selected elevation map and exit

       --help
           Print usage summary

       --verbose
           Verbose module output

       --quiet
           Quiet module output

       --ui
           Force launching GUI dialog

   Parameters:
       group=name [required]
           Name of imagery group for ortho-rectification

       project=name
           Project (location) name
           Name of the target project (location)

       mapset=name
           Name of mapset (default: current search path)
           Name of the target mapset

       elevation=name
           Name of elevation map to use for ortho-rectification

       math_expression=string
           Math expression to convert to real elevation

       units=string
           Unit of the elevation map
           Options: miles, feet, meters, kilometers, acres, hectares

       null_value=string
           No data value

DESCRIPTION

       i.ortho.elev  is  used  to select or modify the target elevation model for orthorectification of imagery.
       This elevation model is essential for both the computation of  photo-to-target  parameters  and  for  the
       actual  orthorectification  of imagery group files.  The elevation model selected should cover the entire
       area of the image group to be orthorectified.  Optionally, scaled elevation data can be converted to real
       elevation values specifying a mathematical expression.

SEE ALSO

        i.ortho.photo
       i.ortho.camera
       g.gui.photo2image
       g.gui.image2target
       i.ortho.init
       i.rectify

AUTHORS

       Mike Baba,  DBA Systems, Inc.
       Bugfixes and enhancements for GRASS GIS 7 by Markus Metz

SOURCE CODE

       Available at: i.ortho.elev source code (history)

       Accessed: Friday Apr 04 01:20:59 2025

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       © 2003-2025 GRASS Development Team, GRASS GIS 8.4.1 Reference Manual

GRASS 8.4.1                                                                                 i.ortho.elev(1grass)