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annotate +grid/equidistant.m @ 577:e45c9b56d50d feature/grids

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Add an Empty grid class The need turned up for the flexural code when we may or may not have a grid for the open water and want to plot that solution. In case there is no open water we need an empty grid to plot the empty gridfunction against to avoid errors.
author Jonatan Werpers <jonatan@werpers.com>
date Thu, 07 Sep 2017 09:16:12 +0200
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