#
# Makefile designed for use with gcc, MetaPost and plain TeX.
#
# Copyright (C) 2002-2006, Fredrik Jonsson <fj@phys.soton.ac.uk>
#
CC       = gcc
CCOPTS   = -O2 -Wall -ansi -std=iso9899:1990 -pedantic
LNOPTS   = -lm
TEX      = tex
DVIPS    = dvips
METAPOST = mpost
BOXCOUNTPATH = ../
BOXCOUNT = $(BOXCOUNTPATH)/boxcount

all: koch
	@echo "==============================================================="
	@echo " Run 'make kochgraphs' to generate Encapsulated PostScript"
	@echo " graphs of Koch snowflake fractal of iteration orders up to"
	@echo " and including n=6."
	@echo " Run 'make fractaldimension' to estimate the fractal dimension."
	@echo "==============================================================="

koch: koch.o
	$(CC) $(CCOPTS) -o koch koch.o $(LNOPTS)

koch.o: koch.c
	$(CC) $(CCOPTS) -c koch.c

kochgraphs:
	make koch
	for k in 1 2 3 4 5 6 ; do \
	./koch $$k > kochgraph-$$k.dat ;\
	echo "input graph;"\
	   "beginfig(1);"\
	   "w:=42mm; h:=42mm;"\
	   "draw begingraph(w,h);"\
	   "pickup pencircle scaled .5pt;"\
	   "setrange(-1.1,-1.1,1.1,1.1);"\
	   "pickup pencircle scaled .5pt;"\
	   "gdraw \"kochgraph-"$$k".dat\";"\
	   "autogrid(itick bot,itick lft);"\
	   "glabel.llft(btex $$ n="$$k" $$ etex,(0.9,0.9));"\
	   "if ("$$k"=1): glabel.lrt(btex intiator etex,(-1.0,0.9)); fi;"\
	   "if ("$$k"=2): glabel.lrt(btex generator etex,(-1.0,0.9)); fi;"\
	   "if (0=1): glabel.bot(btex $$ x $$ etex,OUT); fi;"\
	   "if (0=1): glabel.lft(btex $$ y $$ etex,OUT); fi;"\
	   "endgraph;"\
	   "endfig;"\
	   "end">kochgraph-$$k.mp;\
	$(METAPOST) kochgraph-$$k.mp;\
	$(TEX) -jobname=kochgraph-$$k '\input epsf\nopagenumbers\
	   \centerline{\epsfxsize=120mm\epsfbox{kochgraph-'$$k'.1}}\bye';\
	$(DVIPS) -D1200 -E kochgraph-$$k -o kochgraph-$$k.eps;\
	done

fractaldimension:
	make koch
	make boxcount -C ../
	./koch 10 > koch.trj
	@$(BOXCOUNT) --minlevel 6 --maxlevel 12 \
	   --trajectoryfile koch.trj --outputfile overwrite koch

clean:
	-rm -Rf koch *~ *.o *.exe *.dat *.mp *.mpx *.trj
	-rm -Rf *.tex *.aux *.log *.toc *.idx *.scn *.dvi *.1 *.eps

archive:
	make -ik clean
	tar --gzip --directory=../ -cf koch.tgz koch