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Triangle

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(triangle.h)                                                             
Include file for programs that call Triangle.                            
Accompanies Triangle Version 1.6                                         
July 28, 2005                                                            
Copyright 1996, 2005                                                     
Jonathan Richard Shewchuk                                                
2360 Woolsey #H                                                          
Berkeley, California  94705-1927                                         
jrs@cs.berkeley.edu

How to compile Triangle​

Linux​

Following make file is used for compiling Triangle on Linux.

SRC = ./
BIN = ./
CC = cc
FC = gfortran
CSWITCHES = -O3 -DLINUX
TRILIBDEFS = -DTRILIBRARY 
RM = /bin/rm

all: $(BIN)tricall

trilibrary: $(BIN)triangle.o

$(BIN)triangle.o: $(SRC)triangle.c $(SRC)triangle.h
$(CC) $(CSWITCHES) $(TRILIBDEFS) -c -o $(BIN)triangle.o $(SRC)triangle.c

distclean:
$(RM)  $(BIN)triangle.o  $(BIN)report.o $(BIN)tricall

MacOSX​

How to call Triangle from another program​

If you haven't read Triangle's instructions (run "triangle -h" to read them), you won't understand what follows.

Triangle must be compiled into an object file (triangle.o) with the TRILIBRARY symbol defined (generally by using the -DTRILIBRARY compiler switch). The makefile included with Triangle will do this for you if you run "make trilibrary". The resulting object file can be called via the procedure triangulate().

If the size of the object file is important to you, you may wish to generate a reduced version of triangle.o.

info

The REDUCED symbol gets rid of all features that are primarily of research interest. Specifically, the -DREDUCED switch eliminates Triangle's -i, -F, -s, and -C switches.

note

The CDT_ONLY symbol gets rid of all meshing algorithms above and beyond constrained Delaunay triangulation. Specifically, the -DCDT_ONLY switch eliminates Triangle's -r, -q, -a, -u, -D, -Y, -S, and -s switches.

note

These definitions (TRILIBRARY, REDUCED, CDT_ONLY) must be made in the makefile or in triangle.c itself. Putting these definitions in this file (triangle.h) will not create the desired effect.

The calling convention for triangulate() follows.