NAME

       r.series.interp  - Interpolates raster maps located (temporal or spatial) in between input
       raster maps at specific sampling positions.

KEYWORDS

       raster, series, interpolation

SYNOPSIS

       r.series.interp
       r.series.interp --help
       r.series.interp   [input=name[,name,...]]    [datapos=float[,float,...]]     [infile=name]
       [output=name[,name,...]]           [samplingpos=float[,float,...]]          [outfile=name]
       [method=string]   [--overwrite]  [--help]  [--verbose]  [--quiet]  [--ui]

   Flags:
       --overwrite
           Allow output files to overwrite existing files

       --help
           Print usage summary

       --verbose
           Verbose module output

       --quiet
           Quiet module output

       --ui
           Force launching GUI dialog

   Parameters:
       input=name[,name,...]
           Name of input raster map(s)

       datapos=float[,float,...]
           Data point position for each input map

       infile=name
           Input file with one input raster map name and data  point  position  per  line,  field
           separator between name and sample point is |

       output=name[,name,...]
           Name for output raster map

       samplingpos=float[,float,...]
           Sampling point position for each output map

       outfile=name
           Input  file  with one output raster map name and sample point position per line, field
           separator between name and sample point is |

       method=string
           Interpolation method, currently only linear interpolation is supported
           Options: linear
           Default: linear

DESCRIPTION

       r.series.interp interpolates new raster  maps  located  temporal  or  spatial  in  between
       existing  raster maps.  The interpolation is performed at specific sampling positions. The
       sampling position for each output map must be specified, as well as the data  position  of
       the input maps.  The following interpolation methods are supported.

           •   linear:  Linear  interpolation.  At  least  two  input maps and data positions are
               required.

EXAMPLES

       Interpolate linear three new maps at 3 sampling positions in the interval (0.0;1.0)
       First prepare the input maps:
       g.region s=0 n=80 w=0 e=120 b=0 t=50 res=10 res3=10 -p3
       r.mapcalc expr="prec_1 = 100"
       r.mapcalc expr="prec_5 = 500"

       Interpolate
       r.series.interp --v input=prec_1,prec_5 datapos=0.0,1.0 \
                         output=prec_2,prec_3,prec_4 samplingpos=0.25,0.5,0.75 \
                         method=linear

       Interpolate using the file option.  First prepare the input file:
       echo "prec_2|0.25
       prec_3|0.5
       prec_4|0.75" >> outfile.txt

       Interpolate:
       r.series.interp --v input=prec_1,prec_5 datapos=0.0,1.0 file=outfile.txt method=linear
       The resulting maps will have the values 200, 300 and 400.

SEE ALSO

        g.region, r.series, r.series.accumulate

       Hints for large raster data processing

AUTHOR

       Sören Gebbert

       Last changed: $Date: 2014-09-24 15:20:45 +0200 (Wed, 24 Sep 2014) $

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       © 2003-2016 GRASS Development Team, GRASS GIS 7.0.3 Reference Manual