1 | /* SolenoidPass.c |
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2 | Accelerator Toolbox |
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3 | Revision 7/16/03 |
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4 | Christoph Steier, CSteier@lbl.gov |
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5 | */ |
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6 | |
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7 | #include "mex.h" |
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8 | #include "elempass.h" |
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9 | #include "../atlalib.c" |
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10 | #include <stdlib.h> |
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11 | #include <math.h> |
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12 | |
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13 | /******************************************************************************/ |
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14 | /* PHYSICS SECTION ************************************************************/ |
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15 | |
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16 | void SRotationPass(double *r, double *R, int num_particles) |
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17 | { int c; |
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18 | double *r6; |
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19 | for(c = 0;c<num_particles;c++) |
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20 | { r6 = r+c*6; |
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21 | |
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22 | ATmultmv(r6,R); |
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23 | |
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24 | } |
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25 | } |
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26 | |
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27 | /********** END PHYSICS SECTION ***********************************************/ |
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28 | /******************************************************************************/ |
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29 | |
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30 | /********** WINDOWS DLL GATEWAY SECTION ***************************************/ |
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31 | |
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32 | |
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33 | ExportMode int* passFunction(const mxArray *ElemData, int *FieldNumbers, |
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34 | double *r_in, int num_particles, int mode) |
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35 | |
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36 | #define NUM_FIELDS_2_REMEMBER 1 |
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37 | |
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38 | { double *pr; |
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39 | mxArray *tmpmxptr; |
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40 | int *returnptr,fnum; |
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41 | int *NewFieldNumbers; |
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42 | |
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43 | switch(mode) |
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44 | { case NO_LOCAL_COPY: /* Get fields by names from MATLAB workspace */ |
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45 | { |
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46 | tmpmxptr=mxGetField(ElemData,0,"R"); |
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47 | if(tmpmxptr) |
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48 | pr = mxGetPr(tmpmxptr); |
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49 | else |
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50 | mexErrMsgTxt("Required field 'R' was not found in the element data structure"); |
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51 | |
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52 | returnptr = NULL; |
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53 | |
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54 | } break; |
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55 | case MAKE_LOCAL_COPY: /* Find field numbers first |
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56 | Save a list of field number in an array |
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57 | and make returnptr point to that array |
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58 | */ |
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59 | { |
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60 | NewFieldNumbers = (int*)mxCalloc(NUM_FIELDS_2_REMEMBER,sizeof(int)); |
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61 | |
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62 | fnum = mxGetFieldNumber(ElemData,"R"); |
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63 | if(fnum<0) |
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64 | mexErrMsgTxt("Required field 'R' was not found in the element data structure"); |
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65 | NewFieldNumbers[0] = fnum; |
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66 | |
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67 | |
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68 | pr = mxGetPr(mxGetFieldByNumber(ElemData,0,NewFieldNumbers[0])); |
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69 | |
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70 | returnptr = NewFieldNumbers; |
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71 | |
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72 | } break; |
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73 | |
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74 | case USE_LOCAL_COPY: /* Get fields from MATLAB using field numbers |
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75 | The second argument ponter to the array of field |
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76 | numbers is previously created with |
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77 | SRotationPass( ..., MAKE_LOCAL_COPY) |
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78 | */ |
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79 | |
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80 | { pr = mxGetPr(mxGetFieldByNumber(ElemData,0,FieldNumbers[0])); |
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81 | |
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82 | returnptr = FieldNumbers; |
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83 | |
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84 | |
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85 | } break; |
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86 | default: |
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87 | { mexErrMsgTxt("No match for calling mode in function SRotationPass\n"); |
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88 | } |
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89 | } |
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90 | |
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91 | SRotationPass(r_in, pr, num_particles); |
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92 | return(returnptr); |
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93 | } |
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94 | |
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95 | |
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96 | /********** END WINDOWS DLL GATEWAY SECTION ***************************************/ |
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97 | /********** MATLAB GATEWAY ***************************************/ |
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98 | |
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99 | void mexFunction( int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[]) |
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100 | { |
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101 | int m, n; |
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102 | double *r_in; |
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103 | double *pr; |
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104 | mxArray *tmpmxptr; |
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105 | |
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106 | /* ALLOCATE memory for the output array of the same size as the input */ |
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107 | m = mxGetM(prhs[1]); |
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108 | n = mxGetN(prhs[1]); |
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109 | if(m!=6) |
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110 | {mexErrMsgTxt("Second argument must be a 6 x N matrix");} |
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111 | |
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112 | |
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113 | tmpmxptr = mxGetField(prhs[0],0,"R"); |
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114 | if(tmpmxptr) |
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115 | pr = mxGetPr(tmpmxptr); |
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116 | else |
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117 | mexErrMsgTxt("Required field 'R' was not found in the element data structure"); |
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118 | |
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119 | plhs[0] = mxDuplicateArray(prhs[1]); |
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120 | r_in = mxGetPr(plhs[0]); |
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121 | SRotationPass(r_in, pr, n); |
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122 | } |
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123 | |
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124 | |
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