ref: 3e26d07e60945b2cda301705ede608b924b4b915
dir: /src/autohint/mather.py/
#!/usr/bin/env python
#
#
# autohint math table builder
#
# Copyright 1996-2000 by
# David Turner, Robert Wilhelm, and Werner Lemberg.
#
# This file is part of the FreeType project, and may only be used, modified,
# and distributed under the terms of the FreeType project license,
# LICENSE.TXT. By continuing to use, modify, or distribute this file you
# indicate that you have read the license and understand and accept it
# fully.
import math
ag_pi = 256
def print_arctan( atan_bits ):
atan_base = 1 << atan_bits
print " static AH_Angle ag_arctan[1L << AG_ATAN_BITS] ="
print " {"
count = 0
line = " "
for n in range( atan_base ):
comma = ","
if ( n == atan_base - 1 ):
comma = ""
angle = math.atan( n * 1.0 / atan_base ) / math.pi * ag_pi
line = line + " " + repr( int( angle + 0.5 ) ) + comma
count = count + 1;
if ( count == 8 ):
count = 0
print line
line = " "
if ( count > 0 ):
print line
print " };"
# This routine is not used currently.
#
def print_sines():
print " static FT_Fixed ah_sines[AG_HALF_PI + 1] ="
print " {"
count = 0
line = " "
for n in range( ag_pi / 2 ):
sinus = math.sin( n * math.pi / ag_pi )
line = line + " " + repr( int( 65536.0 * sinus ) ) + ","
count = count + 1
if ( count == 8 ):
count = 0
print line
line = " "
if ( count > 0 ):
print line
print " 65536"
print " };"
print_arctan( 8 )
print
# END