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pdf_example.py
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pdf_example.py
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from reportlab.platypus import SimpleDocTemplate, Paragraph
from reportlab.platypus.flowables import Flowable, Spacer
from reportlab.lib.styles import getSampleStyleSheet
from reportlab.lib.units import inch
from pdf_turtle import PdfTurtle
class TurtleArt(Flowable):
def __init__(self, scale=1.0):
self.scale = scale
def wrap(self, availWidth, availHeight):
self.width = availWidth
self.height = 600*self.scale
return (self.width, self.height)
def draw(self):
t = PdfTurtle(self.canv, width=self.width, height=self.height)
t.fillcolor('blue')
t.begin_fill()
for i in range(20):
d = (50 + i*i*1.5)*self.scale
t.pencolor(0, 0.05*i, 0)
t.width(i*self.scale)
t.forward(d)
t.right(144)
t.end_fill()
def go():
doc = SimpleDocTemplate("example.pdf")
styles = getSampleStyleSheet()
story = [Paragraph('PDF Example', styles['Title'])]
text = """\
This is an example of how to use turtle graphics in a PDF document."""
story.append(Paragraph(text, styles['Normal']))
story.append(Spacer(1, 0.055*inch))
story.append(TurtleArt(scale=0.75))
story.append(Paragraph("You can control the size of a graphic.",
styles['Normal']))
story.append(Spacer(1, 0.055*inch))
story.append(TurtleArt(scale=0.25))
story.append(Paragraph("Try creating your own documents.",
styles['Normal']))
doc.build(story)
go()
# Uncomment this to display the PDF after you generate it.
# from subprocess import call # @IgnorePep8
# call(["evince", "example.pdf"])