It can seems a strange question, but there is a "mobile rule" in inkscape?
inside a object, frequently I have to measure distances. Ex: from the top of truck ceiling to beginning of top of glass. so, what you do in these ocasions? are you used to work with X and Y coordinates and sum or subtract these values? do you use the inkscape "fixed" ruler for reference?
Beginners' Questions measuring with ruler
Inkscape.org
It can seems a strange question, but there is a "mobile rule" in inkscape?
inside a object, frequently I have to measure distances. Ex: from the top of truck ceiling to beginning of top of glass. so, what you do in these ocasions? are you used to work with X and Y coordinates and sum or subtract these values? do you use the inkscape "fixed" ruler for reference?
or there are other ways?
The measure tool in the toolbox looks like a ruler.
https://wiki.inkscape.org/wiki/index.php/Release_notes/1.0#Measurement_Tool