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# About
This package provides utilities for a variety of different structural shapes. Currently, the following are included:
- Rods
- Rectangular bars
- Pipes
- Box Beams
- I-Beams
- Composite Shapes

# Usage
Here are some basic examples of usage

```rust
use structural_shapes::StructuralShape;
let x = StructuralShape::new_rod(1.0).with_cog(0.0, 1.0);
println!("cross sectional area: {:?}", x.area().value);
println!("area moment of inertia: {:?}", x.moi_x().value);
println!("polar moment of inertia: {:?}", x.polar_moi().value);
```

You can also create composite shapes that are composed of more than one primitive:
```rust
use structural_shapes::{CompositeShape, StructuralShape};
let x = CompositeShape::new()
    .add(StructuralShape::new_rod(2.0).with_cog(2.0, 0.0))
    .add(StructuralShape::new_rod(2.0).with_cog(-2.0, 0.0));
println!("cross sectional area: {:?}", x.area().value);
println!("area moment of inertia: {:?}", x.moi_x().value);
println!("polar moment of inertia: {:?}", x.polar_moi().value);
```