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Offline Hildebrando Pereira  
#1 Posted : 12 September 2022 21:33:22(UTC)
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Hey Guys,

It's possible to block the negative input in field's using smath viewer?

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Offline Davide Carpi  
#2 Posted : 14 September 2022 15:40:10(UTC)
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Nope, the best way to accomplish it easily is to filter the output applying abs() to the value before using it.

a:1

a:abs(a)

f(a): ...
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Offline Hildebrando Pereira  
#3 Posted : 14 September 2022 15:47:52(UTC)
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Thanks Davide! Actually i do this, i will use an formatted label to show some message warning the user
Offline Davide Carpi  
#4 Posted : 14 September 2022 16:51:57(UTC)
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You are welcome. As alternative one can develop a region that translates into a TextBox control with mask/validation filters. It might be tricky depending on the filter but it is feasible.
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Offline Hildebrando Pereira  
#5 Posted : 14 September 2022 17:04:57(UTC)
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Wow! It will be a great plugin! It can be extend the use of smath viewer in so many ways
Offline Hildebrando Pereira  
#6 Posted : 14 September 2022 21:53:11(UTC)
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Originally Posted by: Jean Giraud Go to Quoted Post
Originally Posted by: Hildebrando Pereira Go to Quoted Post
It's possible to block the negative input in field's using smath viewer ?

Pretty simple to zap negative values:
1. transform negatives to '0'
2. strip vector from '0'
No need using Smath Viewer.
Cheers ... Jean.

Random [rnd(n)] Filter.sm (11kb) downloaded 8 time(s).

Composite clean negatives.

CleanNegative.PNG


Thanks Jean, but it's not the case.

I have an long application developed in Smath Studio using Smath Viewer, and some of my algorithms need's a positive input for bending moment's. For now showing a warning message, and using an absolute value work, it's not the more elegant solution, but work.


Offline Hildebrando Pereira  
#7 Posted : 14 September 2022 22:41:46(UTC)
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Originally Posted by: Jean Giraud Go to Quoted Post
Originally Posted by: Hildebrando Pereira Go to Quoted Post
I have an long application developed in Smath Studio ... , and some of my algorithms need a positive input for bending moment's.

The very original document at the algorithms level might help.
Not my discipline, but curious.
Refreshed version of the previous Filter Negatives.
Jean.

Random [rnd(n)] Filter.sm (11kb) downloaded 8 time(s).



Sure! The document is here:

DIMIS_219.sm (839kb) downloaded 14 time(s).

The section is called "Flexão Composta" the value of Msd, for this algorithm need's to be positive.
Offline overlord  
#8 Posted : 14 September 2022 22:44:08(UTC)
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Originally Posted by: Hildebrando Pereira Go to Quoted Post
Thanks Jean, but it's not the case.

Get use to what he do, but never bow down or surrender.

He will try to hijack your topics with totally unrelated replies.
Just report his irrelevant posts, mods will take care it eventually.

Regards
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