Function read_obj_solid 

pub fn read_obj_solid(
    topo: &mut Topology,
    input: &str,
    tolerance: f64,
) -> Result<SolidId, IoError>

Read an OBJ file and import it as a solid with one planar face per triangle.

This is a convenience wrapper that calls read_obj followed by import_mesh. Vertices within tolerance of each other are merged.

Errors

Returns IoError if the file is malformed or the mesh cannot be converted to a valid solid.