diff +grid/equidistant.m @ 886:8894e9c49e40 feature/timesteppers

Merge with default for latest changes
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Thu, 15 Nov 2018 16:36:21 -0800
parents c3378418d49a
children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/+grid/equidistant.m	Thu Nov 15 16:36:21 2018 -0800
@@ -0,0 +1,29 @@
+% Creates a cartesian grid of dimension length(m).
+% over the doman xlim, ylim, ...
+% Examples:
+%   g = grid.equidistant([mx, my], xlim, ylim)
+%   g = grid.equidistant([10, 15], {0,1}, {0,2})
+function g = equidistant(m, varargin)
+    if length(m) ~= length(varargin)
+        error('grid:equidistant:NonMatchingParameters','The number of provided dimensions do not match.')
+    end
+
+    for i = 1:length(m)
+        if ~iscell(varargin{i}) || numel(varargin{i}) ~= 2
+           error('grid:equidistant:InvalidLimits','The limits should be cell arrays with 2 elements.');
+        end
+
+        if varargin{i}{1} > varargin{i}{2}
+            error('grid:equidistant:InvalidLimits','The elements of the limit must be increasing.');
+        end
+    end
+
+    X = {};
+    h = [];
+    for i = 1:length(m)
+        [X{i}, h(i)] = util.get_grid(varargin{i}{:},m(i));
+    end
+
+    g = grid.Cartesian(X{:});
+    g.h = h;
+end
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