Negative Value

[kulfi]

Hi,

I have the value for this either negative or Positive it sould it is not negative Value.

Thanks

(setq Depth (getreal "\nEnter the Depth of the Duct..= "))

[Ajilal.Vijayan]

Not sure from your question.

If you dont want negative value and zero use this line before getreal

(initget (+ 2 4))
(setq Depth (getreal "\nEnter the Depth of the Duct..= "))

 More info initget

[Kent1Cooper]

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@Ajilal.Vijayan wrote:

....

If you dont want negative value and zero use this line before getreal

(initget (+ 2 4))
(setq Depth (getreal "\nEnter the Depth of the Duct..= "))

...

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And if you use (getdist) instead of (getreal), the User will have the choice of whether to give that distance by entering a number as for (getreal) or picking two points on-screen.  And if entering a number, they can use any valid distance format including those that (getreal) will not accept, for instance if they use imperial units, they can enter a distance in feet and inches and fractions, decimal feet, etc.  [The option is only for the input format -- in all cases a real number will be returned.]