Model Expressions

Things change when an expression consists of models instead of just values. We call this a model expression:

std::geo2d::Rect(1cm) - std::geo2d::Circle(radius = 3mm);

In this expression which consists of a subtraction operation of the results of two calls to Rect and Circle.

Output :

Building a group (using curly braces) of both operands and applying the builtin method subtract to it is equivalent to the above code:

use __builtin::ops::subtract;

{
    std::geo2d::Rect(1cm);
    std::geo2d::Circle(radius = 3mm);
}.subtract();

Output :

The following operations can be applied to 2D or 3D models: