println units

hervé_pipon

Hello

Here is a small piece of code:

    var sketchPlane = evOwnerSketchPlane(context, { "entity" : definition.selectedEdge });

    var n = 100;

    var samples = evEdgeTangentLines(context, { "edge" : definition.selectedEdge, "parameters" : range(0, 1, n) });

    var origin = worldToPlane(sketchPlane, samples[0].origin);

    println(origin * centimeter );

It prints :

    (0 meter^2, 0 meter^2)

I want to display centimeter : what is wrong ?

NeilCooke

Units in println are always meters, plus you are multiplying origin (which has length units) by another length to get an area.

hervé_pipon

NeilCooke said:

Units in println are always meters.

@NeilCooke Thanks I didn't know.

Jacob_Corder

change your println to this

println(origin / centimeter );

Evan_Reese

If you wanna get fancy with it

printLn("origin = " ~ roundToPrecision(origin/centimeter, 3)~ " cm";

This will print "origin = 3.25 cm" or whatever. You round to not display 3.250000000001 or some floating point value.

Usually this isn't needed, but if there are a ton of things printing it can be nice to label them with strong concatenation.