2008/4/8 »Æƽ <<a href="mailto:ph0007@ustc.edu">ph0007@ustc.edu</a>>:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div bgcolor="#eaeaea"><font size="2"><font face="ËÎÌå">Hi,Arlindo</font></font>
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<div>I installed "pygrads-1.0.8.win32_superpack.exe"</div>
<div> </div>
<div>After one afternoon's fumble, I have some preliminary understanding about
PyGrads and achieve some simple task.</div>
<div> </div>
<div>There is a little question: how to send the Python variables to
GrADS when I want set the attributes.</div>
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<div>For example:</div>
<div>in GrADS Scripting Language</div>
<div>x1=1</div>
<div>x2=5</div>
<div>y1=1</div>
<div>y2=3</div>
<div>'set parea 'x1' 'x2' 'y1' 'y2</div>
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<div>How to achieve this function in PyGrads simply?</div>
<div></div></div></blockquote><div><br>Here is one way:<br><br><div style="margin-left: 40px;"><span style="font-family: courier new,monospace;">bbox = (1,5,1,3)</span><span style="font-family: courier new,monospace;"></span><br>
<span style="font-family: courier new,monospace;">ga('set parea %d %d %d %d'%bbox)</span><br></div><br>and another<br><br><div style="margin-left: 40px;"><font face="courier new,monospace">x1 = 1</font><br><font face="courier new,monospace">x2 = 5</font><br>
<font face="courier new,monospace">y1 = 1</font><br><font face="courier new,monospace">y2 = 3</font><br><span style="font-family: courier new,monospace;">ga('set parea %d %d %d %d'%(x1,x2,y1,y2))</span><br></div><font face="courier new,monospace"><br>
You just pass a string to the ga() instance with the command you want to execute. In these examples I am using tuples and standard string formating operations in Python. Take your time to read the Python Tutorial,<br><br>
<a href="http://docs.python.org/tut/">http://docs.python.org/tut/</a><br></font><br>You can use pygrads from the command line without knowing much about Python, but<br>you will need to learn the language if you would like to program in it. <br>
<br> Good Luck,<br><br></div></div> Arlindo<br><br>-- <br>Arlindo da Silva<br><a href="mailto:dasilva@alum.mit.edu">dasilva@alum.mit.edu</a>