Probably this:
(http://pastebin.com/fAgffsQf)
def attachPref(sh, worldSpace):
a= "%s.%s" % (sh, "delightVertexPointPref")
if cmds.objExists(a):
cmds.addAttr(sh, dt="doubleArray", ln="delightVertexPointPref")
# get points positons and write into one big string $data
ptsCnt = cmds.getAttr("%s.controlPoints" % sh, s=True)
data = [3*ptsCnt]
for i in xrange(ptsCnt):
if worldSpace:
pos = cmds.xform("%s.vtx[%d]" % (sh, i), q=True, ws=True, t=True)
else:
pos = cmds.xform("%s.vtx[%d]" % (sh, i), q=True)
data.extend(pos)
cmds.setAttr(a, data, type="doubleArray")
In python you can build up a list instead of formatting a string.
On Tue, Sep 11, 2012 at 8:43 AM, f.michal <[email protected]> wrote:
> Hello
> I have a workin MEL code that I need to convert to python.
> I'm not really sure how would I set values on doubleArray attributes - it's
> weird already with MEL.
>
> So, what would be the translation of following into python :
>
> global proc attachPref(string $sh, int $worldSpace)
> {
> string $a= $sh + "." + "delightVertexPointPref";
> if(!`objExists ($a)`)
> addAttr -dt "doubleArray" -ln "delightVertexPointPref" $sh;
>
> //get points positons and write into one big string $data
> int $ptsCnt= `getAttr -s ($sh+".controlPoints")`;
> string $data;
> float $pos[3];
> for($i= 0; $i<$ptsCnt; ++$i) {
> if($worldSpace) $pos= `xform -q -ws -t ($sh + ".vtx[" + $i +
> "]")`;
> else $pos= `xform -q -t ($sh + ".vtx[" + $i + "]")`;
> $data += $pos[0] + " " + $pos[1] + " " + $pos[2] + " ";
> }
>
> eval setAttr $a -type "doubleArray" (3*$ptsCnt) $data;
> }
>
> The last line is the important part :)
>
> Thanks !
> ps. this is urgent :)
>
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