Martin Landa 2877afe850 add missing headers (compiled without GDAL) 9 年 前
..
Makefile d6700ffb2c Update LIBES, DEPENDENCIES from linkage database 15 年 前
README 377d53c972 fix links pointing to skagit 11 年 前
enforce.h 87cfda0cca More error handling: 15 年 前
enforce_ds.c 2877afe850 add missing headers (compiled without GDAL) 9 年 前
lobf.c 153220b0ca fixed unlucky formatted messages (thanks to Glynn) 16 年 前
main.c 3b8386fa9f manual: some cleanup of HTML and examples 10 年 前
r.carve.html b64d9e63e0 rename section BUGS to KNOWN ISSUES in manuals 9 年 前
raster.c df4d81abd4 Move raster-specific functions from lib/gis to lib/raster: 15 年 前
support.c 6c41b6394b Re-write raster history implementation 14 年 前
vect.c 67014631cb Added missing checks for Vect_open_* return value to avoid potential segmentation fault 10 年 前

README

http://www4.ncsu.edu/~hmitaso/gmslab/reports/cerl99/rep99.html
Terrain modeling and Soil Erosion Simulations for Fort Hood and Fort Polk
test areas

Geographic Modeling and Systems Laboratory,
University of Illinois atUrbana-Champaign
Helena Mitasova, Lubos Mitas, William M. Brown, Douglas M. Johnston


rast=name raster input file
vect=name vector input file containing stream

output=name raster output file
[points=name] vector output file for adjusted stream points
[width=value] width of streams (in meters)
[depth=value] additional depth

-q quiet - do not show progress
-n no flat areas allowed in flow direction

r.carve does not create a depressionless DEM because many depressions are in
flat areas and not in the streams.

http://www4.ncsu.edu/~hmitaso/gmslab/reports/cerl99/demstr.gif

The program will take the vector stream data, transform them to raster, and
subtracts a defaultdepth + additionaldepth from the DEM. If the given
width is more than 1 cell it will carve the stream with the given width.
With -n option it should eliminate all flat cells within the stream, so
when and if the water gets into the stream it will flow. Vector
('points') option generates x,y,z for points which define the stream
with the z value of the bottom of the carved-in stream. These points
can then be combined with contour points to interpolate a new DEM with
better representation of valleys.

It has not been thoroughly tested so not all option may work properly -
but this was the intention.