[Scilab-users] Efficiency map

[Stéphane Mottelet]

Moreover, knowing if you are looking for closed curves (or not) would help.

S.

Le 12/04/2020 à 17:00, Stéphane Mottelet a écrit :
>
> Hello Daniel,
>
> There can be different answers depending on what you are trying to 
> obtain at the end.
>
> Do you need to smooth curves by themselves, or are you somewhat trying 
> to build  a smooth surface based on iso-value curves (your TORQUE X 
> SPEED curve ?) ?
>
> In this latter case, can you provide the efficiency value associated 
> to each TORQUE X SPEED curve ?
>
> In the former case, you need some ordering of your data, e.g. by angle 
> computed with center located at the mass center of points, then least 
> squares splines could be applied more efficiently.
>
> S.
>
> Le 07/04/2020 à 00:13, Daniel Stringari a écrit :
>> Dear friends, I'm still a layman at SCILAB, but I'm using SCILAB this 
>> week to be able to plot an efficiency map through a routine I created 
>> on it. Basically the efficiency map is summarized in* annex 1_0 and  
>> annex 1_1*(I took it from the internet to exemplify the problem), 
>> where through a TORQUE X SPEED curve I have efficiency lines.
>> In *annex 2*, I have an example of how my curve looks so far. Based 
>> on the example, I have two problems:
>> 1) I tried to use the SPLIN function to interpolate the points, but 
>> it doesn't work considering that it works only with strictly 
>> increasing vectors. Any suggestions for me to smooth the curve?
>> 2) When trying to add colors, I realized that most plotting functions 
>> do not work with values that are not real, which is my case ... All 
>> values with decimal places. Any suggestions for solving this other 
>> problem?
>>
>> Friends, I appreciate any form of help...
>>
>> attachments: 
>> https://drive.google.com/open?id=1DZORDJfpoezDhzYYyn4oold1O1V1Yz0Z 
>> <https://antispam.utc.fr/proxy/2/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/antispam.utc.fr/proxy/2/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/drive.google.com/open?id=1DZORDJfpoezDhzYYyn4oold1O1V1Yz0Z>
>>
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> -- 
> Stéphane Mottelet
> Ingénieur de recherche
> EA 4297 Transformations Intégrées de la Matière Renouvelable
> Département Génie des Procédés Industriels
> Sorbonne Universités - Université de Technologie de Compiègne
> CS 60319, 60203 Compiègne cedex
> Tel : +33(0)344234688
> http://www.utc.fr/~mottelet
>
> _______________________________________________
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-- 
Stéphane Mottelet
Ingénieur de recherche
EA 4297 Transformations Intégrées de la Matière Renouvelable
Département Génie des Procédés Industriels
Sorbonne Universités - Université de Technologie de Compiègne
CS 60319, 60203 Compiègne cedex
Tel : +33(0)344234688
http://www.utc.fr/~mottelet

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