Top "Computational-geometry" questions

is a branch of computer science devoted to the study of algorithms which can be stated in terms of geometry.

Difference between quadtree and kd-tree

What is the main difference between a quadtree and kd-tree? I understand they split points in many dimensions, but I …

computational-geometry kdtree quadtree
How can I find the alpha shape (concave hull) of a 2d point cloud?

I am looking for an implementation that calculates alpha shapes in two dimensions. I am running ubuntu. I would prefer …

python linux ubuntu geometry computational-geometry
Is there a robust C++ implementation of the Bentley-Ottmann algorithm?

The Bentley-Ottoman algorithm finds all crossings in a set of line segments. For a well known and important algorithm, it …

c++ computational-geometry
The Maximum Volume of Trapped Rain Water in 3D

A classic algorithm question in 2D version is typically described as Given n non-negative integers representing an elevation map where …

algorithm graphics computational-geometry
Calculate bounding polygon of alpha shape from the Delaunay triangulation

Given a set of points in the plane, a notion of alpha-shape, for a given positive number alpha, is defined …

algorithm d3.js geometry computational-geometry delaunay
Boundary enclosing a given set of points

I am having a bit of a problem with an algorithm that I am currently using. I wanted it to …

geometry computational-geometry concave-hull
Fill arbitrary 2D shape with given set of rectangles

I have a set of rectangles and arbitrary shape in 2D space. The shape is not necessary a polygon (it …

algorithm geometry computational-geometry
Voronoi Tessellation in Python

Node Assignment Problem The problem I want to solve is to tessellate the map given with the Blue Nodes(Source …

python algorithm computational-geometry voronoi operations-research
Efficient way to find overlapping of N rectangles

I am trying to find an efficient solution for finding overlapping of n rectangles where rectangles are stored in two …

python algorithm computational-geometry
How to detect border vertices of an open mesh 3d model?

There are two kinds of surface mesh models, closed mesh like a sphere or a cube and the second one …

math graphics geometry computational-geometry vertex