mesh_down
ABSTRACT
Calculates the lowest y coordinate of a mesh-tree. This operation doesn't equate to using mesh_direction with a downward-facing vector, as that would be the negative of this result.
PARAMETERS
| mesh | Specifies consideration of each mesh in the mesh-tree when determining the lowest point. |
| root | Specifies the container mesh-tree from which meshes are selected for identifying the lowest point. |
| tag_predicate(tag) | Determines whether a mesh should be included in computing the lowest point if it has the given tag. |
RETURN
The y coordinate of the lowest point among the selected meshes.
DECLARATION
func mesh_down([mesh_tree] {[full] {mesh}, [tag_pred] {root, tag_predicate(tag)}})