1 2 #include <petsc/private/drawimpl.h> /*I "petscdraw.h" I*/ 3 4 /*@ 5 PetscDrawLGAddCommonPoint - Adds another point to each of the line graphs. All the points share 6 the same new X coordinate. The new point must have an X coordinate larger than the old points. 7 8 Logically Collective on lg 9 10 Input Parameters: 11 + lg - the line graph context 12 . x - the common x coordinate point 13 - y - the new y coordinate point for each curve. 14 15 Level: intermediate 16 17 Notes: 18 You must call `PetscDrawLGDraw()` to display any added points 19 20 Call `PetscDrawLGReset()` to remove all points 21 22 .seealso: `PetscDrawLG`, `PetscDrawLGCreate()`, `PetscDrawLGAddPoints()`, `PetscDrawLGAddPoint()`, `PetscDrawLGReset()`, `PetscDrawLGDraw()` 23 @*/ 24 PetscErrorCode PetscDrawLGAddCommonPoint(PetscDrawLG lg, const PetscReal x, const PetscReal *y) 25 { 26 PetscInt i; 27 28 PetscFunctionBegin; 29 PetscValidHeaderSpecific(lg, PETSC_DRAWLG_CLASSID, 1); 30 31 if (lg->loc + lg->dim >= lg->len) { /* allocate more space */ 32 PetscReal *tmpx, *tmpy; 33 PetscCall(PetscMalloc2(lg->len + lg->dim * PETSC_DRAW_LG_CHUNK_SIZE, &tmpx, lg->len + lg->dim * PETSC_DRAW_LG_CHUNK_SIZE, &tmpy)); 34 PetscCall(PetscArraycpy(tmpx, lg->x, lg->len)); 35 PetscCall(PetscArraycpy(tmpy, lg->y, lg->len)); 36 PetscCall(PetscFree2(lg->x, lg->y)); 37 lg->x = tmpx; 38 lg->y = tmpy; 39 lg->len += lg->dim * PETSC_DRAW_LG_CHUNK_SIZE; 40 } 41 for (i = 0; i < lg->dim; i++) { 42 if (x > lg->xmax) lg->xmax = x; 43 if (x < lg->xmin) lg->xmin = x; 44 if (y[i] > lg->ymax) lg->ymax = y[i]; 45 if (y[i] < lg->ymin) lg->ymin = y[i]; 46 47 lg->x[lg->loc] = x; 48 lg->y[lg->loc++] = y[i]; 49 } 50 lg->nopts++; 51 PetscFunctionReturn(0); 52 } 53 54 /*@ 55 PetscDrawLGAddPoint - Adds another point to each of the line graphs. 56 The new point must have an X coordinate larger than the old points. 57 58 Logically Collective on lg 59 60 Input Parameters: 61 + lg - the line graph context 62 - x, y - the points to two arrays containing the new x and y 63 point for each curve. 64 65 Notes: 66 You must call `PetscDrawLGDraw()` to display any added points 67 68 Call `PetscDrawLGReset()` to remove all points 69 70 Level: intermediate 71 72 .seealso: `PetscDrawLG`, `PetscDrawLGCreate()`, `PetscDrawLGAddPoints()`, `PetscDrawLGAddCommonPoint()`, `PetscDrawLGReset()`, `PetscDrawLGDraw()` 73 @*/ 74 PetscErrorCode PetscDrawLGAddPoint(PetscDrawLG lg, const PetscReal *x, const PetscReal *y) 75 { 76 PetscInt i; 77 PetscReal xx; 78 79 PetscFunctionBegin; 80 PetscValidHeaderSpecific(lg, PETSC_DRAWLG_CLASSID, 1); 81 82 if (lg->loc + lg->dim >= lg->len) { /* allocate more space */ 83 PetscReal *tmpx, *tmpy; 84 PetscCall(PetscMalloc2(lg->len + lg->dim * PETSC_DRAW_LG_CHUNK_SIZE, &tmpx, lg->len + lg->dim * PETSC_DRAW_LG_CHUNK_SIZE, &tmpy)); 85 PetscCall(PetscArraycpy(tmpx, lg->x, lg->len)); 86 PetscCall(PetscArraycpy(tmpy, lg->y, lg->len)); 87 PetscCall(PetscFree2(lg->x, lg->y)); 88 lg->x = tmpx; 89 lg->y = tmpy; 90 lg->len += lg->dim * PETSC_DRAW_LG_CHUNK_SIZE; 91 } 92 for (i = 0; i < lg->dim; i++) { 93 if (!x) { 94 xx = lg->nopts; 95 } else { 96 xx = x[i]; 97 } 98 if (xx > lg->xmax) lg->xmax = xx; 99 if (xx < lg->xmin) lg->xmin = xx; 100 if (y[i] > lg->ymax) lg->ymax = y[i]; 101 if (y[i] < lg->ymin) lg->ymin = y[i]; 102 103 lg->x[lg->loc] = xx; 104 lg->y[lg->loc++] = y[i]; 105 } 106 lg->nopts++; 107 PetscFunctionReturn(0); 108 } 109 110 /*@C 111 PetscDrawLGAddPoints - Adds several points to each of the line graphs. 112 The new points must have an X coordinate larger than the old points. 113 114 Logically Collective on lg 115 116 Input Parameters: 117 + lg - the line graph context 118 . xx,yy - points to two arrays of pointers that point to arrays 119 containing the new x and y points for each curve. 120 - n - number of points being added 121 122 Level: intermediate 123 124 Notes: 125 You must call `PetscDrawLGDraw()` to display any added points 126 127 Call `PetscDrawLGReset()` to remove all points 128 129 .seealso: `PetscDrawLG`, `PetscDrawLGCreate()`, `PetscDrawLGAddPoint()`, `PetscDrawLGAddCommonPoint()`, `PetscDrawLGReset()`, `PetscDrawLGDraw()` 130 @*/ 131 PetscErrorCode PetscDrawLGAddPoints(PetscDrawLG lg, PetscInt n, PetscReal **xx, PetscReal **yy) 132 { 133 PetscInt i, j, k; 134 PetscReal *x, *y; 135 136 PetscFunctionBegin; 137 PetscValidHeaderSpecific(lg, PETSC_DRAWLG_CLASSID, 1); 138 139 if (lg->loc + n * lg->dim >= lg->len) { /* allocate more space */ 140 PetscReal *tmpx, *tmpy; 141 PetscInt chunk = PETSC_DRAW_LG_CHUNK_SIZE; 142 143 if (n > chunk) chunk = n; 144 PetscCall(PetscMalloc2(lg->len + lg->dim * chunk, &tmpx, lg->len + lg->dim * chunk, &tmpy)); 145 PetscCall(PetscArraycpy(tmpx, lg->x, lg->len)); 146 PetscCall(PetscArraycpy(tmpy, lg->y, lg->len)); 147 PetscCall(PetscFree2(lg->x, lg->y)); 148 lg->x = tmpx; 149 lg->y = tmpy; 150 lg->len += lg->dim * chunk; 151 } 152 for (j = 0; j < lg->dim; j++) { 153 x = xx[j]; 154 y = yy[j]; 155 k = lg->loc + j; 156 for (i = 0; i < n; i++) { 157 if (x[i] > lg->xmax) lg->xmax = x[i]; 158 if (x[i] < lg->xmin) lg->xmin = x[i]; 159 if (y[i] > lg->ymax) lg->ymax = y[i]; 160 if (y[i] < lg->ymin) lg->ymin = y[i]; 161 162 lg->x[k] = x[i]; 163 lg->y[k] = y[i]; 164 k += lg->dim; 165 } 166 } 167 lg->loc += n * lg->dim; 168 lg->nopts += n; 169 PetscFunctionReturn(0); 170 } 171