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

SOURCE CODE

       Available at: r.series.interp source code (history)

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       © 2003-2019 GRASS Development Team, GRASS GIS 7.8.2 Reference Manual