r.pi.rectangle - GRASS GIS manual

NAME

r.pi.rectangle - Generates a rectangle based on a corner coordinate.

KEYWORDS

SYNOPSIS

r.pi.rectangle

r.pi.rectangle --help

r.pi.rectangle input=name output=name keyval=integer x=integer y=integer alignment=string [title="phrase"] [--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 [required]: Raster map with single pixels representing sampling points
output=name [required]: Name for output raster map
keyval=integer [required]: Pixel value in the input raster to be used
x=integer [required]: Extent of generated area on the x axis (width) in pixel
y=integer [required]: Extent of generated area on the y axis (height) in pixel
alignment=string [required]: Alignment of the rectangle relative to the input pixel. options: center, top-left, top-right, bottom; Options: center, top-left, top-right, bottom-left, bottom-right
title="phrase": Title for resultant raster map

DESCRIPTION
NOTES
EXAMPLE
SEE ALSO
AUTHORS

DESCRIPTION

r.pi.rectangle converts sampling points (e.g. GPS coordinates) of the corner of a sampling site into an area by generating a defined rectangle. Generates a rectangle based on a corner coordinate.

This modules aims at generating sampling areas which are only known by the coordinate of one corner. The input are single points, while the output are areas representing the corresponding area for each of the single points/coordinates.

NOTES

The areas can only be generated horizontally, not diagonal. This can be added as wish and might be implemented in the future.

EXAMPLE

An example for the North Carolina sample dataset:

g.region -d
...

AUTHORS

Programming: Elshad Shirinov
Scientific concept: Dr. Martin Wegmann
Department of Remote Sensing
Remote Sensing and Biodiversity Unit
University of Wuerzburg, Germany

Port to GRASS GIS 7: Markus Metz

SOURCE CODE

Available at: r.pi.rectangle source code (history)