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annotate +sbp/D1Upwind.m @ 264:8a625c5a3633 operator_remake

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Changed input parameter L (domain length) to lim (cell with domain boundaries)
author Martin Almquist <martin.almquist@it.uu.se>
date Fri, 09 Sep 2016 10:39:12 +0200
parents 21a180acbd49
children 4b9310edcdf8
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07fa0d6a05bb Renamned class files and added nonequidistant operators.
Martin Almquist <martin.almquist@it.uu.se>
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1 classdef D1Upwind < sbp.OpSet
07fa0d6a05bb Renamned class files and added nonequidistant operators.
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2 properties
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21a180acbd49 Renamed standard class to D2Standard etc, Rewrote class properties.
Martin Almquist <martin.almquist@it.uu.se>
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3 D1 % SBP operator approximating first derivative
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4 H % Norm matrix
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5 HI % H^-1
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6 Q % Skew-symmetric matrix
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7 e_1 % Left boundary operator
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8 e_m % Right boundary operator
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9 m % Number of grid points.
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10 h % Step size
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11 x % grid
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12 borrowing % Struct with borrowing limits for different norm matrices
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13 end
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14
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15 methods
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8a625c5a3633 Changed input parameter L (domain length) to lim (cell with domain boundaries)
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16 function obj = D1Upwind(m,lim,order)
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17
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18 x_l = lim{1};
8a625c5a3633 Changed input parameter L (domain length) to lim (cell with domain boundaries)
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19 x_r = lim{2};
8a625c5a3633 Changed input parameter L (domain length) to lim (cell with domain boundaries)
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20 L = x_r-x_l;
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21 obj.h = L/(m-1);
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8a625c5a3633 Changed input parameter L (domain length) to lim (cell with domain boundaries)
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22 obj.x = linspace(x_l,x_r,m)';
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23
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24 switch order
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25 case 2
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26 [obj.H, obj.HI, obj.Dp, obj.Dm, obj.e_1, obj.e_m] = ...
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27 sbp.implementations.d1_upwind_2(m,obj.h);
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28 case 3
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29 [obj.H, obj.HI, obj.Dp, obj.Dm, obj.e_1, obj.e_m] = ...
21a180acbd49 Renamed standard class to D2Standard etc, Rewrote class properties.
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30 sbp.implementations.d1_upwind_3(m,obj.h);
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31 case 4
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32 [obj.H, obj.HI, obj.Dp, obj.Dm, obj.e_1, obj.e_m] = ...
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33 sbp.implementations.d1_upwind_4(m,obj.h);
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34 case 5
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35 [obj.H, obj.HI, obj.Dp, obj.Dm, obj.e_1, obj.e_m] = ...
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36 sbp.implementations.d1_upwind_5(m,obj.h);
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37 case 6
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38 [obj.H, obj.HI, obj.Dp, obj.Dm, obj.e_1, obj.e_m] = ...
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39 sbp.implementations.d1_upwind_6(m,obj.h);
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40 case 7
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41 [obj.H, obj.HI, obj.Dp, obj.Dm, obj.e_1, obj.e_m] = ...
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42 sbp.implementations.d1_upwind_7(m,obj.h);
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43 case 8
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44 [obj.H, obj.HI, obj.Dp, obj.Dm, obj.e_1, obj.e_m] = ...
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45 sbp.implementations.d1_upwind_8(m,obj.h);
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46 case 9
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47 [obj.H, obj.HI, obj.Dp, obj.Dm, obj.e_1, obj.e_m] = ...
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48 sbp.implementations.d1_upwind_9(m,obj.h);
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49 otherwise
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50 error('Invalid operator order %d.',order);
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51 end
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53 obj.m = m;
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54 obj.borrowing = [];
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56 end
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57 end
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23051a86faa4 Removed static method smallestGrid
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60 end
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