RectangleMesh.h¶

Note

The documentation on this page was automatically extracted from the DOLFIN C++ code and may need to be edited or expanded.

class RectangleMesh¶

Parent class(es)

Mesh

Triangular mesh of the 2D rectangle spanned by two points p0 and p1. Given the number of cells (nx, ny) in each direction, the total number of triangles will be 2*nx*ny and the total number of vertices will be (nx + 1)*(ny + 1).

RectangleMesh(const Point &p0, const Point &p1, std::size_t nx, std::size_t ny, std::string diagonal = "right")¶

Arguments

p0 (Point): First point.
p1 (Point): Second point.
nx (double): Number of cells in \(x\)-direction.
ny (double): Number of cells in \(y\)-direction.
diagonal (string): Direction of diagonals: “left”, “right”, “left/right”, “crossed”

Example

// Mesh with 8 cells in each direction on the
// set [-1,2] x [-1,2]
Point p0(-1, -1);
Point p1(2, 2);
RectangleMesh mesh(p0, p1, 8, 8);

RectangleMesh(MPI_Comm comm, const Point &p0, const Point &p1, std::size_t nx, std::size_t ny, std::string diagonal = "right")¶

Arguments

comm (MPI_Comm): MPI communicator
p0 (Point): First point.
p1 (Point): Second point.
nx (double): Number of cells in \(x\)-direction.
ny (double): Number of cells in \(y\)-direction.
diagonal (string): Direction of diagonals: “left”, “right”, “left/right”, “crossed”

Example

// Mesh with 8 cells in each direction on the
// set [-1,2] x [-1,2]
Point p0(-1, -1);
Point p1(2, 2);
RectangleMesh mesh(MPI_COMM_WORLD, p0, p1, 8, 8);