NAME

prepair - repair GIS polygons

SYNOPSIS

prepair
[--wkt string | -f file | --ogr file] [--robustness] [--minarea AREA] [--isr GRIDSIZE] [--time] [--shpOut]

DESCRIPTION

prepair permits you to easily repair "broken" GIS polygons, and that according to the international standards ISO 19107. In brief, given a polygon stored in WKT, it automatically repairs it and gives you back a valid WKT. Automated repair methods can be considered as interpreting ambiguous or ill-defined polygons and giving a coherent and clearly defined output.

OPTIONS

--wkt 'POLYGON(0 0, 1 0, 1 1, 0 0)'

Process polygon from WKT string

-f infile.txt

Process polygon from WKT string on the first line of the file

--ogr infile.shp

Process first polygon of the input file

--robustness

Compute the robustness of the input/output

--setdiff

Uses the point set topology paradigm (default: odd-even paradigm)

--minarea AREA

Only output polygons larger than AREA

--isr GRIDSIZE

Snap round the input before repairing

--time

Benchmark the different stages of the process

--shpOut

Output a shapefile (out.shp) instead of a WKT

SEE ALSO

pprepair(1)