# Rectangular3D Class¶

class plask.mesh.Rectangular3D(axis0, axis1, axis2, ordering='012')
class plask.mesh.Rectangular3D(ordering='012')
class plask.mesh.Rectangular3D(geometry, ordering='012')

Three-dimensional mesh

create empty mesh

create mesh with axes supplied as mesh.OrderedAxis

create coarse mesh based on bounding boxes of geometry objects

ordering can be any a string containing any permutation of and specifies ordering of the mesh points (last index changing fastest).

## Subclasses¶

 Boundary Generic boundary specification for RectangularBase3D mesh BoundaryConditions Set of boundary conditions. DivideGenerator Generator of Rectilinear3D mesh by simple division of the geometry. Element Element (FEM-like, rectangular) of the Rectangular3D mesh Elements Element list in the Rectangular3D mesh RegularGenerator Generator of Rectilinear3D mesh with lines at transverse edges of all objects SimpleGenerator Generator of Rectangular3D mesh with lines at edges of all objects. SmoothGenerator Generator of Rectilinear3D mesh with dense sampling at edges and smooth change of element size.

## Methods¶

 Back() Back side of the mesh for setting boundary conditions BackOf(object[, path]) Boundary back of specified object Bottom() Bottom side of the mesh for setting boundary conditions BottomOf(object[, path]) Boundary bottom of specified object Front() Front side of the mesh for setting boundary conditions FrontOf(object[, path]) Boundary in front of specified object Left() Left side of the mesh for setting boundary conditions LeftOf(object[, path]) Boundary left of specified object Right() Right side of the mesh for setting boundary conditions RightOf(object[, path]) Boundary right of specified object Top() Top side of the mesh for setting boundary conditions TopOf(object[, path]) Boundary top of specified object copy() Make a copy of this mesh get_midpoints() Get new mesh with points in the middles of of elements of this mesh index(index0, index1, index2) Return single index of the point indexed with index0, index1, and index2 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 index2(index) Return index in the third axis of the point with given index major_index(index) Return index in the major axis of the point with given index middle_index(index) Return index in the middle 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 (longitudinal) axis of the mesh axis1 The second (transverse) axis of the mesh axis2 The third (vertical) axis of the mesh axis_long The first (longitudinal) axis of the mesh, alias for axis0 axis_tran The second (transverse) axis of the mesh, alias for axis1 axis_vert The third (vertical) axis of the mesh, alias for axis2 dim elements Element list in the mesh index_long Alias for index0 index_tran Alias for index1 index_vert Alias for index2 major_axis The slowest changing axis medium_axis The middle changing axis minor_axis The quickest changing axis ordering Ordering of the points in this mesh

## Descriptions¶

### Method Details¶

Rectangular3D.Back()

Back side of the mesh for setting boundary conditions

Rectangular3D.BackOf(object, path=None)

Boundary back of specified object

Rectangular3D.Bottom()

Bottom side of the mesh for setting boundary conditions

Rectangular3D.BottomOf(object, path=None)

Boundary bottom of specified object

Rectangular3D.Front()

Front side of the mesh for setting boundary conditions

Rectangular3D.FrontOf(object, path=None)

Boundary in front of specified object

Rectangular3D.Left()

Left side of the mesh for setting boundary conditions

Rectangular3D.LeftOf(object, path=None)

Boundary left of specified object

Rectangular3D.Right()

Right side of the mesh for setting boundary conditions

Rectangular3D.RightOf(object, path=None)

Boundary right of specified object

Rectangular3D.Top()

Top side of the mesh for setting boundary conditions

Rectangular3D.TopOf(object, path=None)

Boundary top of specified object

Rectangular3D.copy()

Make a copy of this mesh

Rectangular3D.get_midpoints()

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

Rectangular3D.index(index0, index1, index2)

Return single index of the point indexed with index0, index1, and index2

Rectangular3D.index0(index)

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

Rectangular3D.index1(index)

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

Rectangular3D.index2(index)

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

Rectangular3D.major_index(index)

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

Rectangular3D.middle_index(index)

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

Rectangular3D.minor_index(index)

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

Rectangular3D.set_optimal_ordering()

Set the optimal ordering of the points in this mesh

### Attribute Details¶

Rectangular3D.axis0

The first (longitudinal) axis of the mesh

Rectangular3D.axis1

The second (transverse) axis of the mesh

Rectangular3D.axis2

The third (vertical) axis of the mesh

Rectangular3D.axis_long

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

Rectangular3D.axis_tran

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

Rectangular3D.axis_vert

The third (vertical) axis of the mesh, alias for axis2

Rectangular3D.dim = 3
Rectangular3D.elements

Element list in the mesh

Rectangular3D.index_long

Alias for index0

Rectangular3D.index_tran

Alias for index1

Rectangular3D.index_vert

Alias for index2

Rectangular3D.major_axis

The slowest changing axis

Rectangular3D.medium_axis

The middle changing axis

Rectangular3D.minor_axis

The quickest changing axis

Rectangular3D.ordering

Ordering of the points in this mesh