[scilab-Users] 3D display view: Spherical coordinates [alpha,theta] + lighting

[Antoine Monmayrant]

Le 26/11/2010 13:35, Stephane Mottelet a écrit :
> Sam Mathew <sam at cctech.co.in> a écrit :
>
>> Thanks Stéphane,
>>
>> I tried to install the library online on 5.3 beta 4,
>> but it doesn't work.
>
> the installation process or the plotlib itself ? Be sure to install 
> the lastest version (0.42).
>
>> But on the 5.2.2 version it did work. Is there any problem with 5.3 
>> beta 4
>> for installing atoms modules?
>>
>> Besides, as I am not yet very conversant with SCILAB, I don't know 
>> how to
>> access help for the new toolboxes after installation!
>>
>> I would like to colour my surfaces with variable colours depending on 
>> the
>> value they represent.
Last time I tried plotlib, I didn't success in getting both color as a 
function of data and shadow/lighting.
>> I guess the help/demo/examples for plotlib would help
>> much. How can one access it?
>
> in the demo menu. If you want to copy/paste demos code, type (once for 
> all
> at the beginning of scilab session)
>
> --> plotlibmode
>
> or put it in your .scilab
>
> S.
>
>>
>> Regards,
>>
>> Sam
>>
>>
>> 2010/11/26 Stéphane Mottelet <stephane.mottelet at utc.fr>
>>
>>>  Hi,
>>>
>>> the plotlib module (available thru the Atoms module manager) allows
>>> to plot a surface with lighting (surfl and trisurfl functions). You can
>>> choose
>>> the direction of the light source, so this should solve your problem.
>>>
>>> Concerning your problem with view angles, the problem is that even 
>>> if you
>>> force the view angles to be the same, you should also force the axis 
>>> limits
>>> to have an equivalent view.
>>>
>>>
>>> S.
>>>
>>
>>
>>
>> -- 
>>
>> Asst. Manager, CFD
>> Centre for Computational Technologies
>> www.cctech.co.in
>> Phone: +91 20 2552 1873
>>
>
>
>


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