<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000'>Hello,<br>I was giving a wrong example for what we need to accomplish.<br>More exactly, the signature of scale and reflect functions are different in igeom.h between version 1.4.0 and 1.4.1<br>Because of that, the python bindings look different (pytaps)<br><br><br>The test though, should test differently, in <br><pytaps>/test/igeom/creation.py<br><br>def testScale(self):<br> ent = self.geom.createBrick(2, 2, 2)<br> <span style="background-color: rgb(255, 0, 0);">self.geom.scaleEnt(ent, [1,2,3])</span><br> lo, hi = self.geom.getEntBoundBox(ent)<br> self.assertArray(lo, [-1,-2,-3])<br> self.assertArray(hi, [ 1, 2, 3])<br><br>instead of calling <br>self.geom.scaleEnt(ent, [1, 2, 3])<br>we should call it with<br> self.geom.scaleEnt(ent,[0,0,0], [1, 2, 3]) for newer version of igeom<br><br>how can we differentiate in the test itself? Is there something that can be "exported" like a version number?<br><br>In <pytaps>iGeom.c, in pytaps, we differentiate between versions, we can do it, because this is c code:<br><br><font size="2" face="courier new,courier,monaco,monospace,sans-serif">#if IBASE_VERSION_GE(1,4,1)<br>static PyObject *<br>iGeomObj_scaleEnt(iGeom_Object *self,PyObject *args,PyObject *kw)<br>{<br> static char *kwlist[] = {"entity","point","scale",0};<br> int err;<br> iBaseEntity_Object *entity;<br> PyObject *in_vec,*vec, *in_point, *point;<br><br> if(!PyArg_ParseTupleAndKeywords(args,kw,"O!OO",kwlist,&iBaseEntity_Type,<br> &entity,&in_point,&in_vec))<br> return NULL;<br><br> vec = PyArray_ToVectors(in_vec,NPY_DOUBLE,1,3,0);<br> if(vec == NULL)<br> return NULL;<br> point = PyArray_ToVectors(in_point,NPY_DOUBLE,1,3,0);<br> if(point == NULL)<br> return NULL;<br><br> double *coords = PyArray_DATA(vec);<br> double *pt_coords = PyArray_DATA(point);<br> iGeom_scaleEnt(self->handle,entity->handle,pt_coords[0], pt_coords[1], pt_coords[2],<br> coords[0],coords[1],coords[2],<br> &err);<br> Py_DECREF(vec);<br> Py_DECREF(point);<br><br> if(checkError(self->handle,err))<br> return NULL;<br> Py_RETURN_NONE;<br>}<br>#else<br>static PyObject *<br>iGeomObj_scaleEnt(iGeom_Object *self,PyObject *args,PyObject *kw)<br>{<br> static char *kwlist[] = {"entity","scale",0};<br> int err;<br> iBaseEntity_Object *entity;<br> PyObject *in_vec,*vec;<br><br> if(!PyArg_ParseTupleAndKeywords(args,kw,"O!O",kwlist,&iBaseEntity_Type,<br> &entity,&in_vec))<br> return NULL;<br><br> vec = PyArray_ToVectors(in_vec,NPY_DOUBLE,1,3,0);<br> if(vec == NULL)<br> return NULL;<br><br> double *coords = PyArray_DATA(vec);<br> iGeom_scaleEnt(self->handle,entity->handle,coords[0],coords[1],coords[2],<br> &err);<br> Py_DECREF(vec);<br><br> if(checkError(self->handle,err))<br> return NULL;<br> Py_RETURN_NONE;<br>}<br>#endif</font><br><br><br><br><hr id="zwchr"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Mon, Dec 16, 2013 at 7:49 AM, Paul Wilson <span dir="ltr"><<a href="mailto:wilsonp@engr.wisc.edu" target="_blank">wilsonp@engr.wisc.edu</a>></span> wrote:<br>
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Hi Andy, Iulian,<br>
<br>
I've added Anthony Scopatz into this conversation, as he has a
growing interest in PyTAPS. He is also a python expert. I'm not
sure if he is on the CGMA list yet.<br></div></blockquote><div><br></div><div>Hello All, </div><div><br></div><div>I didn't know there was a cgma-dev list :) I have applied now.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div><nudge>Tim was also planning to move it to bitbucket soon
(last month?) to facilitate collaborative development </nudge><br></div></blockquote><div><br></div><div><doublenudge /></div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div><br>
<div>On 12/13/2013 12:22 PM, Iulian
Grindeanu wrote:<br>
</div>
<blockquote>
<div style="font-size:12pt;font-family:'times new roman','new york',times,serif">It looks like in python there
is no equivalent to ifdefs. <br></div></blockquote></div></blockquote><div>It isn't entirely clear to me what you are trying to ifdef around here. The code here was for the OS but Andy was mentioning code version. Still, I would say that the ifdef concept doesn't exactly apply. In Python, the API should be the same across all platforms and the implementation should vary based on the system you are on. Think of this kind of a environment-based duck typing :). It is much more normal in Python to write something like the following:</div>
<div><br></div><div><font face="courier new, monospace">import os</font></div><div><font face="courier new, monospace"><br></font></div><div><font face="courier new, monospace">def foo(x):</font></div><div><font face="courier new, monospace"> if <a href="http://os.name" target="_blank">os.name</a> == 'posix':</font></div>
<div><font face="courier new, monospace"> rtn = x * x</font></div><div><font face="courier new, monospace"> else:</font></div><div><font face="courier new, monospace"> rtn = x + 42</font></div><div><font face="courier new, monospace"> return rtn</font></div>
<div><br></div><div>This is different than the version written by Iulian because you are guaranteed the same foo() object no matter where you are. If you are going to be doing this comparison a lot it might behoove you to bank the result globally.</div>
<div><br></div><div><div><font face="courier new, monospace">import os</font></div><div><span style="font-family:'courier new',monospace">ON_POSIX = <a href="http://os.name" target="_blank">os.name</a> == 'posix'</span><font face="courier new, monospace"><br>
</font></div><div><font face="courier new, monospace"><br></font></div><div><font face="courier new, monospace">def foo(x):</font></div><div><font face="courier new, monospace"> if ON_POSIX:</font></div><div><font face="courier new, monospace"> rtn = x * x</font></div>
<div><font face="courier new, monospace"> else:</font></div><div><font face="courier new, monospace"> rtn = x + 42</font></div><div><font face="courier new, monospace"> return rtn</font></div></div><div><br>
</div>
<div>Hope this helps!</div><div>Be Well</div><div>Anthony</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div><blockquote><div style="font-size:12pt;font-family:'times new roman','new york',times,serif">
We could simply use an if statement, but we need to have
something different for cgm >= 13<br>
Python is an interpreted language, and we can do something like
this:<br>
<pre><code><span>import</span><span> os
</span><span>if</span><span> os</span><span>.</span><span>name </span><span>==</span><span> </span><span>"posix"</span><span>:</span><span>
</span><span>def</span><span> foo</span><span>(</span><span>x</span><span>):</span><span>
</span><span>return</span><span> x </span><span>*</span><span> x
</span><span>else</span><span>:</span><span>
</span><span>def</span><span> foo</span><span>(</span><span>x</span><span>):</span><span>
</span><span>return</span><span> x </span><span>+</span><span> </span><span>42
</span></code></pre>
Now, we need to export somehow the version from iGeom.h /
iBase.h, to be visible in pytaps.<br>
<br>
Another solution is to create an svn branch for pytaps too (I
prefer not to, because there is not much difference, so far) And
as long as iGeom.h does not change, we do not really need
different branches.<br>
<br>
Any suggestions?<br>
<br>
Iulian<br>
<br>
<hr>
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<div style="font-size:12pt;font-family:'times new roman','new york',times,serif">Hello,<br>
Does anybody know how to do ifdefs in python? Or something
similar? <br>
This is what I am using for pytaps built with cgm trunk
(actually, cgm/tags/13.1.1)<br>
(you should be able to apply this patch on pytaps source,
and use it also for trunk version)<br>
<br>
Iulian<br>
<hr>
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HI<br>
<br>
I think the iMesh implmentation in CGM13.1 is mismatched
for the PyTAPS <br>
1.4, PyTAPS 1.4 failed to build when using CGM 13.1, but
is fine with <br>
12.2. The error messages are all code issues regarding
mismatched <br>
arguments to functions, passing ints when it should be
doubles and so on.<br>
<br>
I figured this should be reported here since I couldnt
find PyTAPS dev<br>
<br>
Thanks<br>
<br>
Andy<br>
<br>
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<br>
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</font></span></div><span><font color="#888888">
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<pre>--
-- ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ --
Paul Wilson ~ UW-Madison ~ <a href="tel:608-263-0807" target="_blank">608-263-0807</a> ~ cal: <a href="http://bit.ly/pphw-cal" target="_blank">http://bit.ly/pphw-cal</a>
Professor, Engineering Physics. ~ <a href="http://cnerg.engr.wisc.edu" target="_blank">http://cnerg.engr.wisc.edu</a>
Faculty Director, Advanced Computing Infrastructure</pre>
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