manual/tex.py

   1 #!/usr/bin/env python
   2 import sys
   3 sys.path.append("..")
   4 from pyx import *
   5
   6
   7 c = canvas.canvas()
   8 t = c.insert(tex.tex())
   9 t.text(0, 0, "Hello, world!")
  10 print "width:", t.textwd("Hello, world!")
  11 print "height:", t.textht("Hello, world!")
  12 print "depth:", t.textdp("Hello, world!")
  13 c.writetofile("tex1")
  14
  15
  16 c = canvas.canvas()
  17 t = c.insert(tex.tex())
  18 t.text(0, 0, "Hello, world!")
  19 t.text(0, -0.5, "Hello, world!", tex.fontsize.large)
  20 t.text(0, -1.5,
  21        r"\sum_{n=1}^{\infty} {1\over{n^2}} = {{\pi^2}\over 6}",
  22        tex.style.math)
  23
  24 c.stroke(path.line(5, -0.5, 9, -0.5))
  25 c.stroke(path.line(5, -1, 9, -1))
  26 c.stroke(path.line(5, -1.5, 9, -1.5))
  27 c.stroke(path.line(7, -1.5, 7, 0))
  28 t.text(7, -0.5, "left aligned") # default is tex.halign.left
  29 t.text(7, -1, "center aligned", tex.halign.center)
  30 t.text(7, -1.5, "right aligned", tex.halign.right)
  31
  32 c.stroke(path.line(0, -4, 2, -4))
  33 c.stroke(path.line(0, -2.5, 0, -5.5))
  34 c.stroke(path.line(2, -2.5, 2, -5.5))
  35 t.text(0, -4,
  36        "a b c d e f g h i j k l m n o p q r s t u v w x y z",
  37        tex.valign.top(2))
  38 c.stroke(path.line(2.5, -4, 4.5, -4))
  39 c.stroke(path.line(2.5, -2.5, 2.5, -5.5))
  40 c.stroke(path.line(4.5, -2.5, 4.5, -5.5))
  41 t.text(2.5, -4,
  42        "a b c d e f g h i j k l m n o p q r s t u v w x y z",
  43        tex.valign.bottom(2))
  44
  45 c.stroke(path.line(5, -4, 9, -4))
  46 c.stroke(path.line(7, -5.5, 7, -2.5))
  47 t.text(7, -4, "horizontal")
  48 t.text(7, -4, "vertical", tex.direction.vertical)
  49 t.text(7, -4, "rvertical", tex.direction.rvertical)
  50 t.text(7, -4, "upsidedown", tex.direction.upsidedown)
  51 t.text(7.5, -3.5, "45", tex.direction(45))
  52 t.text(6.5, -3.5, "135", tex.direction(135))
  53 t.text(6.5, -4.5, "225", tex.direction(225))
  54 t.text(7.5, -4.5, "315", tex.direction(315))
  55
  56 t.text(0, -6, "red", color.rgb.red)
  57 t.text(3, -6, "green", color.rgb.green)
  58 t.text(6, -6, "blue", color.rgb.blue)
  59 c.writetofile("tex2")
  60