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我做了一些研究,但无法弄清楚。Reportlab:条形码未在PDF文件顶部绘制
我有下面的代码,在PDF文件上写条形码。我试着改变这部分代码的宽度和高度,但它只在pdf文件的底部改变。我如何在PDF文件的开始处写入条形码?
drawon_width = 0.1*inch
drawon_height = 0.1*inch
barcode.drawOn(c, drawon_width, drawon_height)
全码:
import os
import sys
from reportlab.graphics.barcode import code128
from reportlab.graphics.shapes import Drawing
from reportlab.lib.pagesizes import letter
from reportlab.lib.units import mm, inch
from reportlab.pdfgen import canvas
from reportlab.graphics import renderPDF
"""
barcode style is code128
"""
class BarCodeGeneration():
path = os.path.dirname(os.path.abspath(__file__))
files_path = os.path.join(path, 'barcode_files_generated')
def generate_codes(self, code_list):
absolute_file_path = BarCodeGeneration.files_path + 'Ahjfg7887kk'
c = canvas.Canvas("test.pdf")
for i in range(1):
barcode = code128.Code128("Ahjfg7887kk", barHeight=1.2*inch,barWidth = 1.6)
#import pdb; pdb.set_trace()
c.setPageSize((200*mm,80*mm))
drawon_width = 0.1*inch
drawon_height = 0.1*inch
import pdb; pdb.set_trace()
barcode.drawOn(c, drawon_width, drawon_height, 0.1)
textobject = c.beginText()
textobject.setTextOrigin(inch, 2.5*inch)
lines = ["Hi", "Hello"]
for line in lines:
textobject.textLine(line)
c.drawText(textobject)
c.showPage()
c.save()
obj1 = BarCodeGeneration()
obj1.generate_codes([('Ahjfg7887kk', 3)])