Need some precision/help

Questions
1

Hello so here is my project and i need some help because un want so see the line when i press the first click and she follow my mouse i don’t know if it’s clear and if someone can show me how to do a metric system (for know how much the line is ) can be helpful

2

Here is how to do it :

Don’t forget to check this doc page Babylon.js docs

metric system (for know how much the line is )

I guess you want to compte the length of the line? Babylon.js docs

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