【下载文档:  python使用reportlab画图示例（含中文汉字）.txt 】

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python使用reportlab画图示例（含中文汉字）
准备工作
开发环境：python2.6，reportlab
准备中文字体文件：simsun.ttc
代码：
复制代码 代码如下:#!/usr/bin/env python2.6#coding:utf-8
import traceback
from reportlab.graphics.shapes import Drawingfrom reportlab.graphics.charts.lineplots import LinePlotfrom reportlab.graphics.charts.textlabels import Labelfrom reportlab.graphics import renderPDFfrom reportlab.graphics.widgets.markers import makeMarkerfrom reportlab.pdfbase import pdfmetrics, ttfonts
#注意data的类型，#每一个数据点是一个元组#一条曲线对应一个存储数据点元组的元组#一个图形可以包含多条曲线，用列表存储曲线元组data=[((1,100),(2,200),(3,300),(4,400),(5,500)),((1,50),(2,80),(3,400),(4,40),(5,70))]
drawing = Drawing(500, 300)
lp = LinePlot()lp.x = 50 #坐标轴中心坐标lp.y = 30lp.height = 250lp.width = 400lp.data = datalp.joinedLines = 1lp.lines.symbol = makeMarker('FilledCircle')
lp.xValueAxis.valueMin = 1lp.xValueAxis.valueMax = 5lp.xValueAxis.valueStep = 1
lp.yValueAxis.valueMin = 0lp.yValueAxis.valueMax = 500lp.yValueAxis.valueStep = 100drawing.add(lp)
title = Label()#若需要显示中文，需要先注册一个中文字体pdfmetrics.registerFont(ttfonts.TTFont("haha", "simsun.ttc"))title.fontName = "haha"title.fontSize = 12title_text = unicode('你好','gbk')#title_text = "abc"title._text = title_texttitle.x = 250title.y = 280title.textAnchor ='middle'drawing.add(title)
Xlabel = Label()Xlabel._text = 'x'Xlabel.fontSize = 12Xlabel.x = 480Xlabel.y = 30Xlabel.textAnchor ='middle'drawing.add(Xlabel)
Ylabel = Label()Ylabel._text = "y"Ylabel.fontSize = 12Ylabel.x = 40Ylabel.y = 295Ylabel.textAnchor ='middle'drawing.add(Ylabel)try: drawing.save(formats=['gif'],outDir=".",fnRoot="abc")except: traceback.print_exc()