Hi, a user of my extension got the following error message. [Test] Line 134: info = wallin.map(&:to_l) wallin = [“0.15”, “3.0”, “0”, “0.05”, “0”, “0”, “0.01”, “0”, “0”] Other users don’t have problem with this extension also it works well in my system. Can you help me to understand why it happe…

[image] majid866: I will ask the user to use “,” instead of “.” … NO. This is a computer wise setting. Your plugin needs to be regional-agile. if Sketchup::RegionalSettings.decimal_separator != '.' info = wallin.map {|s| s.sub('.',',') }.map(&:to_l) else info = wallin.map(&:to_l) end

[image] ene_su: Saving the input as a string can also lead to data loss if you type “3” in one model being set to m and have it read back in a model set to mm. For solving this problem I consider different saving spaces for different unit. So data that saved in meter unit is not same as data …

That alone wouldn’t guard against changing the system decimal separator, and it would prevent the previous input from being correctly formatted with the model unit if you mix m, cm and mm in your input. The string representations of Lengths just aren’t designed to be stored for later use this way. Y…

Btw, here’s a code snippet to detect metric/imperial model units. This can also be used to pick measurement system specific default values. def metric?(model = Sketchup.active_model) unit_options = model.options["UnitsOptions"] return false unless unit_options["LengthFormat"] == Length::Decimal…

[image] majid866: Would you please let me know how can we do it? Majid, please read ThomThom’s blog … [image] Dealing with Units in SketchUp There are extensions to the base classes in SketchUp’s Ruby API which often new SketchUp plugin developers overlook. If you aren’t aware of…

Thank you for the very useful document. Following come from it. " Because users have different decimal separators depending on their locale, never store unit data as formatted strings! Don’t write Length values out as length.to_s – instead convert it to a Float . That way you can be sure that you c…

Thank you so much my plugin user problem solved by your help.

[image] ene_su: [image] DanRathbun: > if Sketchup::RegionalSettings.decimal_separator != '.' info = wallin.map {|s| s.sub('.',',') }.map(&:to_l) else info = wallin.map(&:to_l) end > ``` This shouldn’t be needed if the right classes are used. Also this would break if any other decimal …

[image] majid866: I think “string.to_f.to_l” is really good This approach does not work. “10,5” would be red as 10, because String#to_f doesn’t honor the user’s chosen decimal sign. Also it doesn’t differentiate “10 m”, “10 cm” and “10””. Only use strings in the UI layer. Only use floats to …

This is the reason at the beginning I used the following codes. if Sketchup::RegionalSettings.decimal_separator == '.' wallin = wallin.map {|s| s.sub(',', '.')} else wallin = wallin.map {|s| s.sub('.', ',')} end If your system decimal separator is “.” and you type 10,5 it will change to 10.5. …

Rather than trying to duplicate String#to_l you can just use String#to_l. It is less work, less error prone and it automatically works with any new units SketchUp may add in the future.

Why unit conversion doesn't work?

Developers Ruby API

dezmo January 23, 2022, 5:15pm 30

Maybe you are using improper single quote ’ (and/or double quotes ")

Because for me it works:
qutes

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Why unit conversion doesn't work?

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