Martin Landa 5cfaea663a v.hull: support for vector lines 15 tahun lalu
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Makefile d6700ffb2c Update LIBES, DEPENDENCIES from linkage database 15 tahun lalu
README db49180dd7 welcome to GRASS 7.0.svn 17 tahun lalu
chull.c 53a7939da4 v.hull: code reorganization + OGR support (read access) 15 tahun lalu
globals.h 8868d4b686 indent -bad -bap -bbb -br -bli0 -bls -cli0 -ncs -fc1 -hnl -i4 \ 17 tahun lalu
hull.c 53a7939da4 v.hull: code reorganization + OGR support (read access) 15 tahun lalu
hull.h 53a7939da4 v.hull: code reorganization + OGR support (read access) 15 tahun lalu
macros.h 8868d4b686 indent -bad -bap -bbb -br -bli0 -bls -cli0 -ncs -fc1 -hnl -i4 \ 17 tahun lalu
main.c 5cfaea663a v.hull: support for vector lines 15 tahun lalu
read.c 5cfaea663a v.hull: support for vector lines 15 tahun lalu
v.hull.html 5cfaea663a v.hull: support for vector lines 15 tahun lalu
v_hull.png db49180dd7 welcome to GRASS 7.0.svn 17 tahun lalu
write.c 53a7939da4 v.hull: code reorganization + OGR support (read access) 15 tahun lalu

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