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# Copyright 2007 Mitchell N. Charity
# Copyright 2009 Walter Bender
#
# This file is part of Ruler.
#
# Ruler is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ruler is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ruler. If not, see <http://www.gnu.org/licenses/>
from __future__ import division
import cairo
from util import mm
from util import set_background_color
from util import set_color
from math import pi,sin,cos
from colorsys import * #XXX
def d2r(d):
return d/180*pi
class Angles90():
def __init__(self,font,font_bold,w,h):
self.font = font
self.font_bold = font_bold
self.w = w
self.h = h
def draw(self,c,dpi):
set_background_color(c,self.w,self.h)
c.set_antialias(True)
ox = mm(dpi,0)
oy = mm(dpi,99)
d = mm(dpi,90)
def xy(angle,m=d):
return cos(-angle)*m+ox,sin(-angle)*m+oy
def ray(angle,r0=0,r1=d):
c.move_to(*xy(angle,r0))
c.line_to(*xy(angle,r1))
lw = 6
c.set_line_width(lw)
c.move_to(ox,oy+lw/2)
c.line_to(*xy(pi/2))
ray(0)
c.stroke()
c.save()
c.set_line_width(3)
c.set_dash([mm(dpi,5)])
ray(pi/4)
c.stroke()
c.restore()
c.set_line_width(4)
for a in range(10,81,10):
ray(d2r(a),mm(dpi,10),mm(dpi,85))
c.stroke()
c.set_line_width(2)
for a in range(10,81,10):
ray(d2r(a),mm(dpi,3),mm(dpi,20))
c.stroke()
c.set_line_width(2)
for a in range(1,90,1):
ray(d2r(a),mm(dpi,70),mm(dpi,80))
c.stroke()
c.set_line_width(2)
for a in range(0,90,5):
ray(d2r(a),mm(dpi,20),mm(dpi,81))
c.stroke()
class Angles360():
def __init__(self,font,font_bold,w,h):
self.font = font
self.font_bold = font_bold
self.w = w
self.h = h
def draw(self,c,dpi):
set_background_color(c,self.w,self.h)
c.set_antialias(True)
ox = mm(dpi,75)
oy = mm(dpi,50)
d = mm(dpi,44)
def xy(angle,m=d):
return cos(-angle)*m+ox,sin(-angle)*m+oy
def ray(angle,r0=0,r1=d):
c.move_to(*xy(angle,r0))
c.line_to(*xy(angle,r1))
def annulus(a0,a1,r0,r1):
c.move_to(*xy(a0,r0))
c.arc_to(ox,oy,r0,a0,a1)
c.rel_line_to(*xy(a1,r1))
c.arc_to(ox,oy,r1,a1,a0)
c.close_path()
def rays(step,r0=0,r1=d,w=1):
c.save()
c.set_line_width(w)
for a in range(0,360,step):
ray(d2r(a),r0,r1)
c.stroke()
c.restore()
rays(1,mm(dpi,35),w=2,r1=mm(dpi,43))
rays(5,mm(dpi,10),w=2)
rays(10,mm(dpi,10),w=4)
# rays(10,mm(dpi,3),mm(dpi,20),w=2)
c.save()
#c.set_dash([mm(dpi,5)])
set_color(c,'dark gray')
rays(45,0,mm(dpi,45),w=6)
c.restore()
rays(90,0,mm(dpi,45),w=6)
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