<html>
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<p>Using BMesh you can use custom data layers (see
<a class="moz-txt-link-freetext" href="https://www.blender.org/api/blender_python_api_2_77_0/bmesh.types.html#custom-data-layer-access">https://www.blender.org/api/blender_python_api_2_77_0/bmesh.types.html#custom-data-layer-access</a>
) - generic int/float/string ones.</p>
<p>Beyond that not much to do, mesh items have no uid at all,
outside of bmesh I guess you could encode some data into a vgroup
e.g. (for vertices at least), but that’s rather limited and
hackish.<br>
</p>
<br>
<div class="moz-cite-prefix">Le 30/06/2016 à 17:35, Khalifa Lame a
écrit :<br>
</div>
<blockquote
cite="mid:CAKQbnQ3A0TTtQaCrsTc4fXNFU2HbL4V5uu_di3ZudLZ2==4z_g@mail.gmail.com"
type="cite">
<div dir="ltr">Alternatively, do those mesh elements have internal
unique constant IDs i can access? Indices change all the time (I
believe), so they are not a reliable way to identify mesh
elements.<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Jun 30, 2016 at 3:21 PM,
Khalifa Lame <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:khalibloo@gmail.com" target="_blank">khalibloo@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Ah, that explains a lot. An error message
during prop creation would have been very helpful. So what
options (if any) do I have? Verts, edges and faces do have
individual properties like bevel and crease weights. How
were those properties created? Can I somehow squeeze in my
own custom properties as well?<br>
</div>
<div class="gmail_extra">
<div>
<div class="h5"><br>
<div class="gmail_quote">On Thu, Jun 30, 2016 at 1:11
PM, Bastien Montagne <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:montagne29@wanadoo.fr"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:montagne29@wanadoo.fr">montagne29@wanadoo.fr</a></a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<p>ID properties are only available for IDs (and
a few other special cases, like bones and some
UI classes). Other types just do not support
them at all.</p>
<p>To check wether a type supports ID
properties, just try to use one of its mapping
protocol item (e.g. <tt>C.object.keys()</tt>
works, while <tt>C.object.vertex_groups[0].keys()</tt>
does not).<br>
</p>
<div>
<div> <br>
<div>Le 30/06/2016 à 13:08, Khalifa Lame a
écrit :<br>
</div>
</div>
</div>
<blockquote type="cite">
<div>
<div>
<div dir="ltr">
<div>Hi. I need assign custom properties
to mesh vertices, edges and faces. It
doesn't throw any errors on creation
of the custom props, but after they've
been created, they don't behave as one
would expect. They are read-only
tuples rather than
bpy.props.IntProperty() for example.<br>
<br>
</div>
For comparison, here's the normal
behavior of a custom property<br>
<div>
<div><img
src="cid:part3.7049F35E.DDE4EC74@wanadoo.fr"
height="60" width="387"><br>
<br>
</div>
<div>Here's what I get on certain
bpy.types<br>
<img
src="cid:part4.DCF042BC.5633C913@wanadoo.fr"
height="61" width="430"><br>
</div>
<div>An unusable tuple!<br>
<br>
</div>
<div>And if I try to assign a value, I
get<br>
<img
src="cid:part5.F6293210.B676E080@wanadoo.fr"
height="65" width="440"><br>
<br>
<br>
</div>
<div>Is there a reason for this? Is
there a known workaround or hack? I
really do need to store custom props
on vertices, edges, faces and vertex
groups.<br>
</div>
<div><br clear="all">
<div><br>
-- <br>
<div
data-smartmail="gmail_signature">khalibloo®<br>
<br>
</div>
</div>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
</div>
</div>
<pre>_______________________________________________
Bf-python mailing list
<a moz-do-not-send="true" href="mailto:Bf-python@blender.org" target="_blank">Bf-python@blender.org</a>
<a moz-do-not-send="true" href="https://lists.blender.org/mailman/listinfo/bf-python" target="_blank">https://lists.blender.org/mailman/listinfo/bf-python</a>
</pre>
</blockquote>
<br>
</div>
<br>
_______________________________________________<br>
Bf-python mailing list<br>
<a moz-do-not-send="true"
href="mailto:Bf-python@blender.org"
target="_blank">Bf-python@blender.org</a><br>
<a moz-do-not-send="true"
href="https://lists.blender.org/mailman/listinfo/bf-python"
rel="noreferrer" target="_blank">https://lists.blender.org/mailman/listinfo/bf-python</a><br>
<br>
</blockquote>
</div>
<br>
<br clear="all">
<br>
</div>
</div>
<span class="HOEnZb"><font color="#888888">-- <br>
<div data-smartmail="gmail_signature">khalibloo®<br>
<br>
</div>
</font></span></div>
</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
<div class="gmail_signature" data-smartmail="gmail_signature">khalibloo®<br>
<br>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Bf-python mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Bf-python@blender.org">Bf-python@blender.org</a>
<a class="moz-txt-link-freetext" href="https://lists.blender.org/mailman/listinfo/bf-python">https://lists.blender.org/mailman/listinfo/bf-python</a>
</pre>
</blockquote>
<br>
</body>
</html>