[OpenSCAD] lookup_halfedge(): input error - explanation please?

Daniel K. Schneider Daniel.Schneider at unige.ch
Wed Mar 24 13:44:42 CET 2010


Clifford Wolf wrote:
> Hello,
>
> On Tue, Mar 23, 2010 at 06:52:41PM +0100, Daniel K. Schneider wrote:
>   
>> I understand about crashing I mean, but don't know what "oriented the 
>> same way means". I thought I did, e.g.
>> I managed to create a simple 3 triangle shape (inserted the picture in 
>> the wiki page above). I also know how to create the same shape by 
>> extrusion or difference, but I just want to do it "by hand", once :)
>>
>> A pointer to some text about "polygon orientation" made for non-CS, 
>> non-math, non-3D people is fine enough :)
>>     
>
> when you select 'Thrown together' from the view menu and compile the design
> (not compile and render!) you will see a preview with the miss-oriented
> polygons highlighted.
>
> (unfortunately this highlighting is not possible in the OpenCSG preview mode
> because it would interfere with the way the OpenCSG preview mode is
> implemented.)
>
> I hope that helps.
>
> yours,
>  - clifford
>
>   
brilliant :)

Wrote this down in your manual
http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Primitive_Solids

- Daniel

-- 
Dr Daniel K.Schneider, TECFA (Educational Technologies and Learning)

TECFA    (TEchnologies de Formation et Apprentissage)
FPSE     (Faculté de Psychologie et des Sciences de l'Education)
Université de Genève
54 Route des Acacias, CH-1227 Carouge

email: Daniel.Schneider at unige.ch
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Tel: 41 22 379 9377 - Fax: 41 22 379 9379




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