Martin Landa 22e3e2d77b replace GR_FATAL_* (rasters), GV_FATAL_* (vectors) by G_FATAL_* 13 년 전
..
Makefile d6700ffb2c Update LIBES, DEPENDENCIES from linkage database 16 년 전
README db49180dd7 welcome to GRASS 7.0.svn 17 년 전
chull.c 53a7939da4 v.hull: code reorganization + OGR support (read access) 15 년 전
globals.h 8868d4b686 indent -bad -bap -bbb -br -bli0 -bls -cli0 -ncs -fc1 -hnl -i4 \ 17 년 전
hull.c 8e11a4e54f add mising headers (compiling without gdal/ogr) 14 년 전
hull.h 53a7939da4 v.hull: code reorganization + OGR support (read access) 15 년 전
macros.h 8868d4b686 indent -bad -bap -bbb -br -bli0 -bls -cli0 -ncs -fc1 -hnl -i4 \ 17 년 전
main.c 22e3e2d77b replace GR_FATAL_* (rasters), GV_FATAL_* (vectors) by G_FATAL_* 13 년 전
read.c 5cfaea663a v.hull: support for vector lines 15 년 전
v.hull.html e437cd9f59 avoid caps HTML tags 13 년 전
v_hull.png db49180dd7 welcome to GRASS 7.0.svn 17 년 전
write.c 53a7939da4 v.hull: code reorganization + OGR support (read access) 15 년 전

README

ALGORITHM

v.hull calculates the planar convex hull of a sites list by
means of an algorithm like Graham scan, by computing
first the upper part of the convex hull, and the
the lower part. The algorighm has been converted to C
from the pseudo-code found in "Computational Geometry,
algorithms and applications", M. de Berg, M. van Kreveld,
M. Overmars, O. Schwarzkopf, Springer.
Some reference about the algoright can be found in the
online course "CMSC 754: Computational geometry" by Dave Mount.


Andrea Aime 9/2001

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chull.c
http://maven.smith.edu/~orourke/books/compgeom.html
http://maven.smith.edu/~orourke/books/ftp.html