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<DIV>HELLO,</DIV>
<DIV> </DIV>
<DIV
style="TEXT-INDENT: 2em">The diagonal generated by Cairo library is like this
,</DIV>
<DIV style="TEXT-INDENT: 2em"> </DIV>
<DIV style="TEXT-INDENT: 2em"><IMG
src="cid:_Foxmail.0@D998DF00-45DE-4E2D-81A4-4904C570027C"></DIV>
<DIV style="TEXT-INDENT: 2em"> </DIV>
<DIV style="TEXT-INDENT: 2em"> we need this effect
below, which can be omitted </DIV>
<DIV style="TEXT-INDENT: 2em"> </DIV>
<DIV style="TEXT-INDENT: 2em"><IMG style="HEIGHT: 370px; WIDTH: 463px"
src="cid:_Foxmail.1@AE1BB60B-727B-45E1-BF65-C10E1B1FD471" width=1705
height=1279></DIV>
<DIV style="TEXT-INDENT: 2em"> </DIV>
<DIV style="TEXT-INDENT: 2em"> </DIV>
<DIV style="TEXT-INDENT: 2em">do you have idea</DIV>
<DIV> </DIV>
<HR style="HEIGHT: 1px; WIDTH: 210px" align=left color=#b5c4df SIZE=1>
<DIV><SPAN>lixuanzhao</SPAN></DIV></BODY></HTML>