本文整理汇总了Python中reportlab.pdfgen.canvas.Canvas.ellipse方法的典型用法代码示例。如果您正苦于以下问题：Python Canvas.ellipse方法的具体用法？Python Canvas.ellipse怎么用？Python Canvas.ellipse使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类reportlab.pdfgen.canvas.Canvas的用法示例。
在下文中一共展示了Canvas.ellipse方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: SpiralTest
# 需要导入模块: from reportlab.pdfgen.canvas import Canvas [as 别名]
# 或者: from reportlab.pdfgen.canvas.Canvas import ellipse [as 别名]
class SpiralTest(unittest.TestCase):
""" Construct and draw image with ColorSpiral colours placed on the
HSV spiral
"""
def setUp(self):
""" Set up canvas for drawing"""
output_filename = os.path.join("Graphics", "spiral_test.pdf")
self.c = Canvas(output_filename, pagesize=A4)
# co-ordinates of the centre of the canvas
self.x_0, self.y_0 = 0.5 * A4[0], 0.5 * A4[1]
def test_colorlist(self):
""" Get set of eight colours, no jitter, using ColorSpiral."""
cs = ColorSpiral(a=4, b=0.33, jitter=0)
colours = list(cs.get_colors(8))
cstr = ["(%.2f, %.2f, %.2f)" % (r, g, b)
for r, g, b in colours]
expected = \
['(0.64, 0.74, 0.81)', '(0.68, 0.52, 0.76)', '(0.72, 0.41, 0.55)',
'(0.68, 0.39, 0.31)', '(0.63, 0.54, 0.22)', '(0.48, 0.59, 0.13)',
'(0.24, 0.54, 0.06)', '(0.01, 0.50, -0.00)']
self.assertEqual(cstr, expected)
def test_colorspiral(self):
""" Get set of 16 colours, no jitter, using ColorSpiral."""
cs = ColorSpiral(a=4, b=0.33, jitter=0)
radius = A4[0] * 0.025
for r, g, b in cs.get_colors(16):
self.c.setFillColor((r, g, b))
# Convert HSV colour to rectangular coordinates on HSV disc
h, s, v = colorsys.rgb_to_hsv(r, g, b)
coords = cmath.rect(s * A4[0] * 0.45, h * 2 * pi)
x, y = self.x_0 + coords.real, self.y_0 + coords.imag
self.c.ellipse(x - radius, y - radius, x + radius, y + radius,
stroke=0, fill=1)
self.finish()
def finish(self):
""" Clean up and save image."""
self.c.save()示例2: oblique
# 需要导入模块: from reportlab.pdfgen.canvas import Canvas [as 别名]
# 或者: from reportlab.pdfgen.canvas.Canvas import ellipse [as 别名]
can.line(1*cm, 1*cm, 20*cm, 1*cm) # ligne horizontale en bas
can.line(1*cm, 28*cm, 20*cm, 1*cm) # ligne oblique (descendante)
can.setLineWidth(3) # nouvelle épaisseur des lignes
can.setFillColorRGB(1,1,.5) # couleur de remplissage (RVB)
can.rect(2*cm, 2*cm, 18*cm, 20*cm, fill=1) # rectangle de 18 x 20 cm
# Dessin d'un bitmap (aligné par son coin inférieur gauche). La méthode
# drawImage renvoie les dimensions du bitmap (en pixels) dans un tuple :
dX, dY =can.drawImage("cocci3.gif", 1*cm, 23*cm, mask="auto")
ratio =dY/dX # rapport haut./larg. de l'image
can.drawImage("cocci3.gif", 1*cm, 14*cm,
width=3*cm, height=3*cm*ratio, mask="auto")
can.drawImage("cocci3.gif", 1*cm, 7*cm, width=12*cm, height=5*cm, mask="auto")
can.setFillColorCMYK(.7,0,.5,0) # couleur de remplissage (CMJN)
can.ellipse(3*cm, 4*cm, 19*cm, 10*cm, fill=1) # ellipse (! axes = 16 x 6 cm)
can.setLineWidth(1) # nouvelle épaisseur des lignes
can.ellipse(centreX -.5*cm, centreY -.5*cm, # petit cercle indiquant la
centreX +.5*cm, centreY +.5*cm) # position du centre de la page
# Quelques textes, avec polices, orientation et alignement divers :
can.setFillColor("navy") # couleur des textes
texteC ="Petite pluie abat grand vent." # texte à centrer
can.setFont("Times-Bold", 18)
can.drawCentredString(centreX, centreY, texteC)
texteG ="Qui ne risque rien, n'a rien." # texte à aligner à gauche
can.setFont("Helvetica", 18)
can.drawString(centreX, centreY -1*cm, texteG)
texteD ="La nuit porte conseil." # texte à aligner à droite
can.setFont("Courier", 18)
can.drawRightString(centreX, centreY -2*cm, texteD)示例3: PDFGenerator
# 需要导入模块: from reportlab.pdfgen.canvas import Canvas [as 别名]
# 或者: from reportlab.pdfgen.canvas.Canvas import ellipse [as 别名]
#.........这里部分代码省略.........
self.canvas.rect(
self.report.margin_left + graphic.left,
top_position - graphic.top - graphic.height,
graphic.width,
graphic.height,
graphic.stroke,
graphic.fill,
)
elif isinstance(element, Line):
self.canvas.line(
self.report.margin_left + graphic.left,
top_position - graphic.top,
self.report.margin_left + graphic.right,
top_position - graphic.bottom,
)
elif isinstance(element, Circle):
self.canvas.circle(
self.report.margin_left + graphic.left_center,
top_position - graphic.top_center,
graphic.radius,
graphic.stroke,
graphic.fill,
)
elif isinstance(element, Arc):
self.canvas.arc(
self.report.margin_left + graphic.left,
top_position - graphic.top,
self.report.margin_left + graphic.right,
top_position - graphic.bottom,
graphic.start_angle,
graphic.extent,
)
elif isinstance(element, Ellipse):
self.canvas.ellipse(
self.report.margin_left + graphic.left,
top_position - graphic.top,
self.report.margin_left + graphic.right,
top_position - graphic.bottom,
graphic.stroke,
graphic.fill,
)
elif isinstance(element, Image):
self.canvas.drawInlineImage(
graphic.image,
self.report.margin_left + graphic.left,
top_position - graphic.top - graphic.height,
graphic.width,
graphic.height,
)
# Band borders
if band.borders.get('all', None):
self.canvas.rect(
band_rect['left'],
band_rect['top'] - band.height,
band_rect['right'] - band_rect['left'],
band.height,
)
if band.borders.get('top', None):
self.canvas.line(band_rect['left'], band_rect['top'], band_rect['right'],
band_rect['top'])
if band.borders.get('right', None):
self.canvas.line(band_rect['right'], band_rect['top'], band_rect['right'],
band_rect['bottom'])