Quest User Guide

The Quest component of Axom provides several spatial operations and queries on a mint::Mesh.

• Operations

  • Read a surface mesh from an STL file

  • Check for some common mesh errors; deduplicate vertices

    • vertex welding: merge vertices closer than a specified distance “epsilon”

    • find self-intersections and degenerate triangles in a surface mesh

    • watertightness test: is a surface mesh a watertight manifold?

• Point queries

  • Surface mesh point queries in C or in C++

    • in/out query: is a point inside or outside a surface mesh?

    • signed distance query: find the minimum distance from a query point to a surface mesh

  • Point in cell query: for a query point, find the cell of the mesh that holds the point and the point’s isoparametric coordinates within that cell

  • All nearest neighbors: given a list of point locations and regions, find all neighbors of each point in a different region

  • Isosurface detection: generate an isosurface mesh from a nodal scalar field and an isovalue.

API Documentation

Doxygen generated API documentation can be found here: API documentation

Contents

• Reading in a mesh
  • Reading an STL file
  • Reading a Pro/E file
• Check and repair a mesh
  • Check for watertightness
• Surface mesh point queries: C API
  • In/out C API
  • Signed Distance query C API
• Surface mesh point queries: C++ API
  • In/out Octree
  • Signed Distance
• Point-in-cell query
• All nearest neighbors query
• Isosurface Detection