[Scilab-users] Facet color in Vers. 5.5.2

[Jens Simon Strom]

Hi Rafeal,
Your code is fine. However I was looking for a more general use of 
plot3d beyond a rectangular mesh.
In the meantime I have found the solution. It is just the realisation 
that the hidden color can be the obvious one. See the following snippet.

plot3d([0 2 0]',[0 0 1]',[0 0 0.2 ]')
ce=gce();
ce.color_mode=5;// blue
ce.hiddencolor=3; //green
//
plot3d([0 0 2]',[0 1 0]',0.5+[0 0 -0.2 ]')//same points, reverse 
orientation
ce=gce();
ce.color_mode=5;// blue
ce.hiddencolor=3;//green
ca=gca(); ca.rotation_angles = [85,-60];

It seems that the data points sequence generates an /oriented/ facet. 
Its /positive side/ is painted by the "hidden" color. But this is a 
surmise only.

Regards
Jens
-------------------------------------------------------------

Am 12.11.2016 13:49, schrieb Rafael Guerra:
>
> Hi Jens,
>
> You need a proper input to plot3d (x and y monotonous with length n1 
> and n2, and z with size n1 x n2):
>
> clear;_clf_();
>
> plot3d([01],[01],[00;00])
>
> ce=_gce_();
>
> ce.color_flag=0;
>
> ce.color_mode=5;/// 5 = red; 1 = black/
>
> Regards,
>
> Rafael
>
> *From:*users [mailto:users-bounces at lists.scilab.org] *On Behalf Of 
> *Jens Simon Strom
> *Sent:* Saturday, November 12, 2016 12:00 PM
> *To:* Users mailing list for Scilab <users at lists.scilab.org>
> *Subject:* [Scilab-users] Facet color in Vers. 5.5.2
>
> Hi Scilab experts,
> please help me to get the facet black, not cyan.
>
> plot3d([0 1 1 0]',[0 0 1 1 ]',[0 0 0 0]')
> ce=gce();
> ce.color_flag=0;// Help page says: "All facets are painted using the 
> color index and method defined by color_mode"
> ce.color_mode=1//Help page says: "The color of the facet when 
> color_flag value is 0" Index 1 should produce Black, but CYAN is 
> delivered.
> //getcolor
>
> Regards
> Jens
>
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.scilab.org/pipermail/users/attachments/20161112/fd30fd0d/attachment.htm>