Mercurial > repos > public > sbplib
annotate +grid/Empty.m @ 1037:2d7ba44340d0 feature/burgers1d
Pass scheme specific parameters as cell array. This will enabale constructDiffOps to be more general. In addition, allow for schemes returning function handles as diffOps, which is currently how non-linear schemes such as Burgers1d are implemented.
| author | Vidar Stiernström <vidar.stiernstrom@it.uu.se> |
|---|---|
| date | Fri, 18 Jan 2019 09:02:02 +0100 |
| parents | ce44af8d7dd1 |
| children |
| rev | line source |
|---|---|
|
582
ce44af8d7dd1
Rename grid.EmptyGrid to grid.Empty
Jonatan Werpers <jonatan@werpers.com>
parents:
577
diff
changeset
|
1 classdef Empty < grid.Grid & grid.Structured |
| 577 | 2 properties |
| 3 dim | |
| 4 end | |
| 5 | |
| 6 methods | |
|
582
ce44af8d7dd1
Rename grid.EmptyGrid to grid.Empty
Jonatan Werpers <jonatan@werpers.com>
parents:
577
diff
changeset
|
7 function obj = Empty(D) |
| 577 | 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 | |
|
582
ce44af8d7dd1
Rename grid.EmptyGrid to grid.Empty
Jonatan Werpers <jonatan@werpers.com>
parents:
577
diff
changeset
|
44 |
|
ce44af8d7dd1
Rename grid.EmptyGrid to grid.Empty
Jonatan Werpers <jonatan@werpers.com>
parents:
577
diff
changeset
|
45 function h = scaling(obj) |
|
ce44af8d7dd1
Rename grid.EmptyGrid to grid.Empty
Jonatan Werpers <jonatan@werpers.com>
parents:
577
diff
changeset
|
46 h = 1; |
|
ce44af8d7dd1
Rename grid.EmptyGrid to grid.Empty
Jonatan Werpers <jonatan@werpers.com>
parents:
577
diff
changeset
|
47 end |
|
ce44af8d7dd1
Rename grid.EmptyGrid to grid.Empty
Jonatan Werpers <jonatan@werpers.com>
parents:
577
diff
changeset
|
48 |
|
ce44af8d7dd1
Rename grid.EmptyGrid to grid.Empty
Jonatan Werpers <jonatan@werpers.com>
parents:
577
diff
changeset
|
49 function s = size(obj) |
|
ce44af8d7dd1
Rename grid.EmptyGrid to grid.Empty
Jonatan Werpers <jonatan@werpers.com>
parents:
577
diff
changeset
|
50 s = zeros(1, obj.dim); |
|
ce44af8d7dd1
Rename grid.EmptyGrid to grid.Empty
Jonatan Werpers <jonatan@werpers.com>
parents:
577
diff
changeset
|
51 end |
| 577 | 52 end |
| 53 end |