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annotate +grid/equidistant.m @ 774:66eb4a2bbb72 feature/grids

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Remove default scaling of the system. The scaling doens't seem to help actual solutions. One example that fails in the flexural code. With large timesteps the solutions seems to blow up. One particular example is profilePresentation on the tdb_presentation_figures branch with k = 0.0005
author Jonatan Werpers <jonatan@werpers.com>
date Wed, 18 Jul 2018 15:42:52 -0700
parents c3378418d49a
children
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c7b2f645101f Added classes and functions for Cartesian and equidistant grids.
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1 % Creates a cartesian grid of dimension length(m).
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2 % over the doman xlim, ylim, ...
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3 % Examples:
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4 % g = grid.equidistant([mx, my], xlim, ylim)
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5 % g = grid.equidistant([10, 15], {0,1}, {0,2})
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6 function g = equidistant(m, varargin)
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7 if length(m) ~= length(varargin)
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8 error('grid:equidistant:NonMatchingParameters','The number of provided dimensions do not match.')
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9 end
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11 for i = 1:length(m)
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12 if ~iscell(varargin{i}) || numel(varargin{i}) ~= 2
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13 error('grid:equidistant:InvalidLimits','The limits should be cell arrays with 2 elements.');
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14 end
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16 if varargin{i}{1} > varargin{i}{2}
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17 error('grid:equidistant:InvalidLimits','The elements of the limit must be increasing.');
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18 end
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19 end
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21 X = {};
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22 h = [];
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23 for i = 1:length(m)
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24 [X{i}, h(i)] = util.get_grid(varargin{i}{:},m(i));
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25 end
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27 g = grid.Cartesian(X{:});
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28 g.h = h;
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29 end