本文整理汇总了Python中reportlab.graphics.shapes.Group.getBounds方法的典型用法代码示例。如果您正苦于以下问题：Python Group.getBounds方法的具体用法？Python Group.getBounds怎么用？Python Group.getBounds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.graphics.shapes.Group的用法示例。
在下文中一共展示了Group.getBounds方法的2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: getCaptcha
# 需要导入模块: from reportlab.graphics.shapes import Group [as 别名]
# 或者: from reportlab.graphics.shapes.Group import getBounds [as 别名]
def getCaptcha(n=5,fontName='Courier',fontSize=14,text=None,fillColor=None):
'''return n random chars in a string and in a byte string structured
as a GIF image'''
from reportlab.graphics.shapes import Drawing, Group, String, \
rotate, skewX, skewY, mmult, translate, Rect
if not text:
from random import randint, uniform
text=''.join([_allowed[randint(0,_mx)] for i in range(n)])
else:
uniform = lambda l,h: 0.5*(l+h)
n = len(text)
baseline = 0
x = 0
G0 = Group()
for c in text:
x += 1
A = translate(x,uniform(baseline-5,baseline+5))
A = mmult(A,rotate(uniform(-15,15)))
A = mmult(A,skewX(uniform(-8,8)))
A = mmult(A,skewY(uniform(-8,8)))
G = Group(transform=A)
G.add(String(0,0,c,fontname=fontName,fontSize=fontSize))
G0.add(G)
x0,y0,x1,y1 = G0.getBounds()
x = 1+x1
G0.transform=translate(2-x0,2-y0)
W = 4+x1-x0
H = 4+y1-y0
D = Drawing(W,H)
if fillColor:
from reportlab.lib.colors import toColor
D.add(Rect(0,0,W,H, fillColor = toColor(fillColor),strokeColor=None))
D.add(G0)
return text, D.asString('gif')示例2: frozenset
# 需要导入模块: from reportlab.graphics.shapes import Group [as 别名]
# 或者: from reportlab.graphics.shapes.Group import getBounds [as 别名]
class Renderer:
LINK = '{http://www.w3.org/1999/xlink}href'
SVG_NS = '{http://www.w3.org/2000/svg}'
SVG_ROOT = SVG_NS + 'svg'
SVG_A = SVG_NS + 'a'
SVG_G = SVG_NS + 'g'
SVG_TITLE = SVG_NS + 'title'
SVG_DESC = SVG_NS + 'desc'
SVG_DEFS = SVG_NS + 'defs'
SVG_SYMBOL = SVG_NS + 'symbol'
SVG_USE = SVG_NS + 'use'
SVG_RECT = SVG_NS + 'rect'
SVG_CIRCLE = SVG_NS + 'circle'
SVG_ELLIPSE = SVG_NS + 'ellipse'
SVG_LINE = SVG_NS + 'line'
SVG_POLYLINE = SVG_NS + 'polyline'
SVG_POLYGON = SVG_NS + 'polygon'
SVG_PATH = SVG_NS + 'path'
SVG_TEXT = SVG_NS + 'text'
SVG_TSPAN = SVG_NS + 'tspan'
SVG_IMAGE = SVG_NS + 'image'
SVG_NODES = frozenset((
SVG_ROOT, SVG_A, SVG_G, SVG_TITLE, SVG_DESC, SVG_DEFS, SVG_SYMBOL,
SVG_USE, SVG_RECT, SVG_CIRCLE, SVG_ELLIPSE, SVG_LINE, SVG_POLYLINE,
SVG_POLYGON, SVG_PATH, SVG_TEXT, SVG_TSPAN, SVG_IMAGE
))
SKIP_NODES = frozenset((SVG_TITLE, SVG_DESC, SVG_DEFS, SVG_SYMBOL))
PATH_NODES = frozenset((SVG_RECT, SVG_CIRCLE, SVG_ELLIPSE, SVG_LINE,
SVG_POLYLINE, SVG_POLYGON, SVG_PATH, SVG_TEXT))
def __init__(self, filename):
self.filename = filename
self.level = 0
self.styles = {}
self.mainGroup = Group()
self.drawing = None
self.root = None
def render(self, node, parent=None):
if parent is None:
parent = self.mainGroup
# ignore if display = none
display = node.get('display')
if display == "none":
return
if node.tag == self.SVG_ROOT:
self.level += 1
if not self.drawing is None:
raise SVGError('drawing already created!')
self.root = node
# default styles
style = {
'color':'none',
'fill':'none',
'stroke':'none',
'font-family':'Helvetica',
'font-size':'12'
}
self.styles[self.level] = style
# iterate children
for child in node:
self.render(child, self.mainGroup)
# create drawing
width = node.get('width', '100%')
height = node.get('height', '100%')
if node.get("viewBox"):
try:
minx, miny, width, height = node.get("viewBox").split()
except ValueError:
raise SVGError("viewBox values not valid")
if width.endswith('%') and height.endswith('%'):
# handle relative size
wscale = parseLength(width) / 100.
hscale = parseLength(height) / 100.
xL,yL,xH,yH = self.mainGroup.getBounds()
self.drawing = Drawing(xH*wscale + xL, yH*hscale + yL)
else:
self.drawing = Drawing(parseLength(width), parseLength(height))
height = self.drawing.height
self.mainGroup.scale(1, -1)
self.mainGroup.translate(0, -height)
self.drawing.add(self.mainGroup)
self.level -= 1
#.........这里部分代码省略.........