Mercurial > repos > public > sbplib
comparison +grid/Empty.m @ 582:ce44af8d7dd1 feature/grids
Rename grid.EmptyGrid to grid.Empty
| author | Jonatan Werpers <jonatan@werpers.com> |
|---|---|
| date | Thu, 07 Sep 2017 10:21:15 +0200 |
| parents | +grid/EmptyGrid.m@e45c9b56d50d |
| children |
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| 581:00261f8d7e15 | 582:ce44af8d7dd1 |
|---|---|
| 1 classdef Empty < grid.Grid & grid.Structured | |
| 2 properties | |
| 3 dim | |
| 4 end | |
| 5 | |
| 6 methods | |
| 7 function obj = Empty(D) | |
| 8 obj.dim = D; | |
| 9 end | |
| 10 % n returns the number of points in the grid | |
| 11 function o = N(obj) | |
| 12 o = 0; | |
| 13 end | |
| 14 | |
| 15 % d returns the spatial dimension of the grid | |
| 16 function o = D(obj) | |
| 17 o = obj.dim; | |
| 18 end | |
| 19 | |
| 20 % points returns a n x d matrix containing the coordinates for all points. | |
| 21 function X = points(obj) | |
| 22 X = sparse(0,obj.dim); | |
| 23 end | |
| 24 | |
| 25 % Restricts the grid function gf on obj to the subgrid g. | |
| 26 function gf = restrictFunc(obj, gf, g) | |
| 27 error('Restrict does not make sense for an empty grid') | |
| 28 end | |
| 29 | |
| 30 % Projects the grid function gf on obj to the grid g. | |
| 31 function gf = projectFunc(obj, gf, g) | |
| 32 error('Project does not make sense for an empty grid') | |
| 33 end | |
| 34 | |
| 35 % Return the grid.boundaryIdentifiers of all boundaries in a cell array. | |
| 36 function bs = getBoundaryNames(obj) | |
| 37 bs = {}; | |
| 38 end | |
| 39 | |
| 40 % Return coordinates for the given boundary | |
| 41 function b = getBoundary(obj, name) | |
| 42 b = sparse(0,obj.dim-1); | |
| 43 end | |
| 44 | |
| 45 function h = scaling(obj) | |
| 46 h = 1; | |
| 47 end | |
| 48 | |
| 49 function s = size(obj) | |
| 50 s = zeros(1, obj.dim); | |
| 51 end | |
| 52 end | |
| 53 end |