# Rectangular2D Class¶

class plask.mesh.Rectangular2D(ordering='01')
class plask.mesh.Rectangular2D(axis0, axis1, ordering='01')
class plask.mesh.Rectangular2D(geometry, ordering='01')

Two-dimensional mesh

create empty mesh

create mesh with axes supplied as sequences of numbers

create coarse mesh based on bounding boxes of geometry objects

ordering can be either ‘01’, ‘10’ and specifies ordering of the mesh points (last index changing fastest).

## Subclasses¶

 Boundary Generic boundary specification for RectangularBase2D mesh BoundaryConditions Set of boundary conditions. DivideGenerator Generator of Rectilinear2D mesh by simple division of the geometry. Element Element (FEM-like, rectangular) of the Rectangular2D mesh Elements Element list in the Rectangular2D mesh RegularGenerator Generator of Rectilinear2D mesh with lines at transverse edges of all objects and fine regular division of each object with spacing approximately equal to specified spacing. SimpleGenerator Generator of Rectangular2D mesh with lines at edges of all objects. SmoothGenerator Generator of Rectilinear2D mesh with dense sampling at edges and smooth change of element size.

## Methods¶

 Bottom() Bottom edge of the mesh for setting boundary conditions BottomOf(object[, path]) Boundary bottom of specified object Horizontal(…) Boundary at horizontal line Left() Left edge of the mesh for setting boundary conditions LeftOf(object[, path]) Boundary left of specified object Right() Right edge of the mesh for setting boundary conditions RightOf(object[, path]) Boundary right of specified object Top() Top edge of the mesh for setting boundary conditions TopOf(object[, path]) Boundary top of specified object Vertical(…) Boundary at vertical line copy() Make a copy of this mesh get_midpoints() Get new mesh with points in the middles of elements of this mesh index(index0, index1) Return single index of the point indexed with index0 and index1 index0(index) Return index in the first axis of the point with given index index1(index) Return index in the second axis of the point with given index major_index(index) Return index in the major axis of the point with given index minor_index(index) Return index in the minor axis of the point with given index set_optimal_ordering() Set the optimal ordering of the points in this mesh

## Attributes¶

 axis0 The first (transverse) axis of the mesh axis1 The second (vertical) axis of the mesh axis_tran The first (transverse) axis of the mesh, alias for axis0 axis_vert The second (vertical) axis of the mesh, alias for axis1 dim elements Element list in the mesh index_tran Alias for index0 index_vert Alias for index1 major_axis The slower changing axis minor_axis The quicker changing axis ordering Ordering of the points in this mesh

## Descriptions¶

### Method Details¶

static Rectangular2D.Bottom()

Bottom edge of the mesh for setting boundary conditions

static Rectangular2D.BottomOf(object, path=None)

Boundary bottom of specified object

static Rectangular2D.Horizontal(at)
static Rectangular2D.Horizontal(at, start, stop)

Boundary at horizontal line

Boundary at horizontal line

static Rectangular2D.Left()

Left edge of the mesh for setting boundary conditions

static Rectangular2D.LeftOf(object, path=None)

Boundary left of specified object

static Rectangular2D.Right()

Right edge of the mesh for setting boundary conditions

static Rectangular2D.RightOf(object, path=None)

Boundary right of specified object

static Rectangular2D.Top()

Top edge of the mesh for setting boundary conditions

static Rectangular2D.TopOf(object, path=None)

Boundary top of specified object

static Rectangular2D.Vertical(at)
static Rectangular2D.Vertical(at, start, stop)

Boundary at vertical line

Boundary at vertical line

Rectangular2D.copy()

Make a copy of this mesh

Rectangular2D.get_midpoints()

Get new mesh with points in the middles of elements of this mesh

Rectangular2D.index(index0, index1)

Return single index of the point indexed with index0 and index1

Rectangular2D.index0(index)

Return index in the first axis of the point with given index

Rectangular2D.index1(index)

Return index in the second axis of the point with given index

Rectangular2D.major_index(index)

Return index in the major axis of the point with given index

Rectangular2D.minor_index(index)

Return index in the minor axis of the point with given index

Rectangular2D.set_optimal_ordering()

Set the optimal ordering of the points in this mesh

### Attribute Details¶

Rectangular2D.axis0

The first (transverse) axis of the mesh

Rectangular2D.axis1

The second (vertical) axis of the mesh

Rectangular2D.axis_tran

The first (transverse) axis of the mesh, alias for axis0

Rectangular2D.axis_vert

The second (vertical) axis of the mesh, alias for axis1

Rectangular2D.dim = 2
Rectangular2D.elements

Element list in the mesh

Rectangular2D.index_tran

Alias for index0

Rectangular2D.index_vert

Alias for index1

Rectangular2D.major_axis

The slower changing axis

Rectangular2D.minor_axis

The quicker changing axis

Rectangular2D.ordering

Ordering of the points in this mesh