layermesh.quadtree module¶
Quadtrees for spatial searching in 2D meshes.
- class layermesh.quadtree.quadtree(bounds, elements, parent=None)¶
Bases:
objectQuadtree for spatial searching of mesh columns. On creation, the quadtree’s bounding box, elements and optional parent quadtree are specified.
Adapted from the quadtree data structure in PyTOUGH.
- all_elements¶
The elements list of the zeroth-generation quadtree.
- bounds¶
The quadtree’s bounding box.
- child¶
A list of the quadtree’s child quadtrees.
- elements¶
The elements in the quadtree.
- generation¶
The generation index of the quadtree.
- leaf(pos)¶
Returns the leaf containing the specified point pos.
- property num_children¶
Number of children of the quadtree.
- property num_elements¶
Number of elements in the quadtree.
- parent¶
The quadtree’s parent quadtree.
- search(pos)¶
Returns the element containing the specified point pos.
- search_wave(pos)¶
Executes search wave for specified point pos on a quadtree leaf.
- translate(shift)¶
Translates the quadtree horizontally by the specified shift vector (an array of length 2).