转载请注明出处，谢谢合作
#!/usr/bin/env python
# -*- coding: cp936 -*-
'''
@brief 功能说明：
实现从supermap后台的mssql里点数据集到AutoCAD里文本型的转换。
要是改为多线程的效果可能会更好。但现在的处理量很小，用不着给自己找麻烦
@author 施峰<sf.cumt@163.com>
2011-10-4~2011-10-5
'''
import pyodbc
import logging
import comtypes.client
import numbers
import array
import re
import ConfigParser
def getconnect(db_type=None,db_arg=None):
'''
sql server:
connector=pyodbc.connect('DRIVER={SQL SERVER};SERVER=LUOBO\\SQLEXPRESS;DATABASE=chengguuo')
'''
if db_type in ('MSSQL','JET'):
try:
connector = pyodbc.connect(db_arg)
except :
logging.error("数据库连接错误！")
raise
return connector
def getdrawscript(f=None):
'''
如果给定文件名则打开该CAD文件。
如果没有给定文件名则认为待编辑的CAD文件已经打开。
'''
if not f:
try:
cad=comtypes.client.GetActiveObject('AutoCAD.Application') #这个可能有点问题
cad.Visible=False
drawingscript=cad.ActiveDocument
except :
logging.error("获得活动cad文件失败。请查看草稿文件是否已经打开，或请关闭除了草稿文件以外的所有cad文件。")
raise
else:
try:
cad=comtypes.client.CreateObject('AutoCAD.Application')
except :
logging.error("请确定本机上安装了autocad")
raise
try:
drawingscript=cad.Documents.Open(f)
except :
logging.error("cad文件打开失败。")
cad.Quit()
raise
return drawingscript
def getrows(sqlstring,connect=None,*args,**kargs):
'''
当返回大量记录时可以要占用大量内存空间
>>> sqlstring = 'SELECT SmX,SmY,name FROM SMDTV_93'
>>> connect = pyodbc.connect('DRIVER={SQL SERVER};SERVER=LUOBO\\SQLEXPRESS;DATABASE=chengguuo')
>>> rows = getrows(sqlstring,connect)
>>> isinstance(rows,list)
True
>>> row=rows[1]
>>> isinstance(row[0],numbers.Real)
True
>>> isinstance(row[1],numbers.Real)
True
>>> isinstance(row[2],str)
True
'''
cursor=connect.cursor()
try:
cursor.execute(sqlstring)
rows = cursor.fetchall()
except :
logging.error("数据库进行sql查寻时出错")
raise
finally:
connect.close()
return rows # 返回引用，注意防止修改
def drawtext(x=None,y=None,text='什么都没有',draw=None,size=50):
'''
@brief 在cad里输入文字。
>>> drawtext(x=36395514.9324,y=3250445.33498,text=r'\A1;T{\H0.7x;\S^3;}x',draw=getdrawscript('D:\\Drawing11.dwg')) == 0
True
'''
if isinstance(x,numbers.Real) and isinstance(y,numbers.Real) and text: #无文字则不绘
point=array.array('d',[x,y,0])
try:
ms=draw.ModelSpace #draw必须没有关闭
#draw.ModelSpace.AddText(text,point,size) #单行文本
ms.AddMText(point,size,text) #多行文本
except:
logging.error("绘制文字出错！")
logging.error("\nx:%s\ny:%s\ntext:%s\npoint:%s\ndraw:%s\nms:\s"%(x,y,text,point,draw,ms))
draw.Application.Quit()
raise
return 0
return 1
def removesharp(text):
'''
@brief 去掉text中的表示supermap标签专题图上下标的特殊符号
>>> removesharp("T#-3#=x")
'T3x'
>>> removesharp("J#-2#=S#+2")
'J2S2'
>>> removesharp("")
''
>>> removesharp(None)
''
'''
if text:
sharppattern=re.compile(r'#[+-=]')
modifiedtext=sharppattern.sub(r"",text,count=0)
else:
modifiedtext=""
return modifiedtext
def addchinesenote(test):
pass
def sharp2mtext(text):
'''
>>> text1 = 'T#-3#=x'
>>> text2 = 'J#-2#=S#+2'
>>> text3 = None
>>> sharp2mtext(text1) == '\\A1;T{\H0.7x;\\\\S^3;}x'
True
>>> #注意这是用的是repr()函数输出。
>>> print sharp2mtext(text1)
\A1;T{\H0.7x;\\S^3;}x
>>> sharp2mtext(text2) == '\\A1;J{\H0.7x;\\S^2;}S{\H0.7x;\\S2^;}'
True
>>> sharp2mtext(text3) == ''
True
'''
if not text:
return ''
else:
ws=text.split('#')
logging.info(ws)
ws_conved=[]
for w in ws[1:]:
w_tem=''
if w[0] == '+':
w_tem = r'{\H0.7x;\S' + w[1:] + r'^;}'
elif w[0] == '-':
w_tem = r'{\H0.7x;\S^' + w[1:] + r';}'
elif w[0] == '=':
w_tem = w[1:]
ws_conved.append(w_tem)
text_conved = r'\A1;'+ws[0]+''.join(ws_conved)
return text_conved
def main(*args,**kargs):
'''
>>> #main(filename="D:\\Drawing1.dwg",sqlstring="SELECT SmX,SmY,name FROM SMDTV_93")
0
>>> # main(filename="D:\\Drawing2.dwg",sqlstring="SELECT SmX,SmY,name FROM SMDTV_93") 失败，由于Drawing2.dwg还不存在
>>> # 0
>>> config = ConfigParser.ConfigParser()
>>> config.read('dot2text.cfg')
['dot2text.cfg']
>>> connectstring = config.get('APPLICATION','connectstring')
>>> connectstring='DRIVER={SQL SERVER};SERVER=LUOBO\\SQLEXPRESS;DATABASE=chengguuo'
>>> filename = config.get('APPLICATION','outputfile')
>>> sqlstring = config.get('APPLICATION','sqlstring')
>>> dbtype =config.get('APPLICATION','dbtype')
>>> main(filename=filename,sqlstring=sqlstring,dbtype=dbtype,connectstring=connectstring)
0
'''
try:
filename=kargs['filename']
sqlstring=kargs['sqlstring']
dbtype=kargs['dbtype']
connectstring=kargs['connectstring']
except:
logging.info("请给出正确的关键字参数")
return 1
if not filename:
draw=getdrawscript()
else:
draw=getdrawscript(filename)
try:
layer=draw.Layers.Add("DOT_2_TEXT") #新增图层
draw.ActiveLayer=layer
except :
logging.error("添加新图层出错")
draw.Application.Quit()
raise
# 这里出过大bug，主要是异常的处理
#try:
# dbconnect=getconnect(db_type=dbtype,db_arg=connectstring)
#except:
# raise
#finally:
# draw.Application.Quit()
try:
dbconnect=getconnect(db_type=dbtype,db_arg=connectstring)
except:
draw.Application.Quit()
raise
try:
rows=getrows(sqlstring,dbconnect)
except:
return 1
try:
for row in rows:
#drawtext(x=row[0],y=row[1],text=removesharp(row[2]),draw=draw)
drawtext(x=row[0],y=row[1],text=sharp2mtext(row[2]),draw=draw)
draw.save()
except:
logging.error("主函数中的drawtext操作出错")
logging.error("drawtext:\nrow[0]:%s\nrow[1]:%s\nrow[2]:%s\n"%(row[0],row[1],row[2]))
return 1
draw.Application.Quit()
return 0
if __name__ == "__main__":
#filename = raw_input("请输入文件名\n") # D:\Drawing1.dwg
#sqlstring = raw_input("***请不要误操作！***\n请输入查询语句。\n") # select SmX,SmY,name from SMDTV93
config = ConfigParser.ConfigParser()
config.read('dot2text.cfg')
connectstring = config.get('APPLICATION','connectstring')
filename = config.get('APPLICATION','outputfile')
sqlstring = config.get('APPLICATION','sqlstring')
dbtype =config.get('APPLICATION','dbtype')
main(filename=filename,sqlstring=sqlstring,dbtype=dbtype,connectstring=connectstring)
