1 /* 2 Defines the operations for the TikZ PetscDraw implementation. 3 */ 4 5 #include <petsc/private/drawimpl.h> /*I "petscsys.h" I*/ 6 7 typedef struct { 8 char *filename; 9 FILE *fd; 10 PetscBool written; /* something has been written to the current frame */ 11 } PetscDraw_TikZ; 12 13 #define TikZ_BEGIN_DOCUMENT \ 14 "\\documentclass{beamer}\n\n\ 15 \\usepackage{tikz}\n\ 16 \\usepackage{pgflibraryshapes}\n\ 17 \\usetikzlibrary{backgrounds}\n\ 18 \\usetikzlibrary{arrows}\n\ 19 \\newenvironment{changemargin}[2]{%%\n\ 20 \\begin{list}{}{%%\n\ 21 \\setlength{\\topsep}{0pt}%%\n\ 22 \\setlength{\\leftmargin}{#1}%%\n\ 23 \\setlength{\\rightmargin}{#2}%%\n\ 24 \\setlength{\\listparindent}{\\parindent}%%\n\ 25 \\setlength{\\itemindent}{\\parindent}%%\n\ 26 \\setlength{\\parsep}{\\parskip}%%\n\ 27 }%%\n\ 28 \\item[]}{\\end{list}}\n\n\ 29 \\begin{document}\n" 30 31 #define TikZ_BEGIN_FRAME \ 32 "\\begin{frame}{}\n\ 33 \\begin{changemargin}{-1cm}{0cm}\n\ 34 \\begin{center}\n\ 35 \\begin{tikzpicture}[scale = 10.00,font=\\fontsize{8}{8}\\selectfont]\n" 36 37 #define TikZ_END_FRAME \ 38 "\\end{tikzpicture}\n\ 39 \\end{center}\n\ 40 \\end{changemargin}\n\ 41 \\end{frame}\n" 42 43 #define TikZ_END_DOCUMENT "\\end{document}\n" 44 45 static PetscErrorCode PetscDrawDestroy_TikZ(PetscDraw draw) { 46 PetscDraw_TikZ *win = (PetscDraw_TikZ *)draw->data; 47 48 PetscFunctionBegin; 49 PetscCall(PetscFPrintf(PetscObjectComm((PetscObject)draw), win->fd, TikZ_END_FRAME)); 50 PetscCall(PetscFPrintf(PetscObjectComm((PetscObject)draw), win->fd, TikZ_END_DOCUMENT)); 51 PetscCall(PetscFClose(PetscObjectComm((PetscObject)draw), win->fd)); 52 PetscCall(PetscFree(win->filename)); 53 PetscCall(PetscFree(draw->data)); 54 PetscFunctionReturn(0); 55 } 56 57 static const char *TikZColors[] = {"white", "black", "red", "green", "cyan", "blue", "magenta", NULL, NULL, "orange", "violet", "brown", "pink", NULL, "yellow", NULL}; 58 59 static inline const char *TikZColorMap(int cl) { 60 return ((cl < 16) ? (TikZColors[cl] ? TikZColors[cl] : "black") : "black"); 61 } 62 63 /* 64 These macros transform from the users coordinates to the (0,0) -> (1,1) coordinate system 65 */ 66 #define XTRANS(draw, x) (double)(((draw)->port_xl + (((x - (draw)->coor_xl) * ((draw)->port_xr - (draw)->port_xl)) / ((draw)->coor_xr - (draw)->coor_xl)))) 67 #define YTRANS(draw, y) (double)(((draw)->port_yl + (((y - (draw)->coor_yl) * ((draw)->port_yr - (draw)->port_yl)) / ((draw)->coor_yr - (draw)->coor_yl)))) 68 69 static PetscErrorCode PetscDrawClear_TikZ(PetscDraw draw) { 70 PetscDraw_TikZ *win = (PetscDraw_TikZ *)draw->data; 71 PetscBool written; 72 73 PetscFunctionBegin; 74 /* often PETSc generates unneeded clears, we want avoid creating empy pictures for them */ 75 PetscCallMPI(MPI_Allreduce(&win->written, &written, 1, MPIU_BOOL, MPI_LOR, PetscObjectComm((PetscObject)(draw)))); 76 if (!written) PetscFunctionReturn(0); 77 PetscCall(PetscFPrintf(PetscObjectComm((PetscObject)draw), win->fd, TikZ_END_FRAME)); 78 PetscCall(PetscFPrintf(PetscObjectComm((PetscObject)draw), win->fd, TikZ_BEGIN_FRAME)); 79 win->written = PETSC_FALSE; 80 PetscFunctionReturn(0); 81 } 82 83 static PetscErrorCode PetscDrawLine_TikZ(PetscDraw draw, PetscReal xl, PetscReal yl, PetscReal xr, PetscReal yr, int cl) { 84 PetscDraw_TikZ *win = (PetscDraw_TikZ *)draw->data; 85 86 PetscFunctionBegin; 87 win->written = PETSC_TRUE; 88 PetscCall(PetscFPrintf(PetscObjectComm((PetscObject)draw), win->fd, "\\draw [%s] (%g,%g) --(%g,%g);\n", TikZColorMap(cl), XTRANS(draw, xl), YTRANS(draw, yl), XTRANS(draw, xr), YTRANS(draw, yr))); 89 PetscFunctionReturn(0); 90 } 91 92 static PetscErrorCode PetscDrawRectangle_TikZ(PetscDraw draw, PetscReal xl, PetscReal yl, PetscReal xr, PetscReal yr, int c1, int c2, int c3, int c4) { 93 PetscDraw_TikZ *win = (PetscDraw_TikZ *)draw->data; 94 95 PetscFunctionBegin; 96 win->written = PETSC_TRUE; 97 PetscCall(PetscFPrintf(PetscObjectComm((PetscObject)draw), win->fd, "\\fill [bottom color=%s,top color=%s] (%g,%g) rectangle (%g,%g);\n", TikZColorMap(c1), TikZColorMap(c4), XTRANS(draw, xl), YTRANS(draw, yl), XTRANS(draw, xr), YTRANS(draw, yr))); 98 PetscFunctionReturn(0); 99 } 100 101 static PetscErrorCode PetscDrawTriangle_TikZ(PetscDraw draw, PetscReal x1, PetscReal y1, PetscReal x2, PetscReal y2, PetscReal x3, PetscReal y3, int c1, int c2, int c3) { 102 PetscDraw_TikZ *win = (PetscDraw_TikZ *)draw->data; 103 104 PetscFunctionBegin; 105 win->written = PETSC_TRUE; 106 PetscCall(PetscFPrintf(PetscObjectComm((PetscObject)draw), win->fd, "\\fill [color=%s] (%g,%g) -- (%g,%g) -- (%g,%g) -- cycle;\n", TikZColorMap(c1), XTRANS(draw, x1), YTRANS(draw, y1), XTRANS(draw, x2), YTRANS(draw, y2), XTRANS(draw, x3), YTRANS(draw, y3))); 107 PetscFunctionReturn(0); 108 } 109 110 static PetscErrorCode PetscDrawEllipse_TikZ(PetscDraw draw, PetscReal x, PetscReal y, PetscReal a, PetscReal b, int c) { 111 PetscDraw_TikZ *win = (PetscDraw_TikZ *)draw->data; 112 PetscReal rx, ry; 113 114 PetscFunctionBegin; 115 win->written = PETSC_TRUE; 116 rx = a / 2 * (draw->port_xr - draw->port_xl) / (draw->coor_xr - draw->coor_xl); 117 ry = b / 2 * (draw->port_yr - draw->port_yl) / (draw->coor_yr - draw->coor_yl); 118 PetscCall(PetscFPrintf(PetscObjectComm((PetscObject)draw), win->fd, "\\fill [color=%s] (%g,%g) circle [x radius=%g,y radius=%g];\n", TikZColorMap(c), XTRANS(draw, x), YTRANS(draw, y), (double)rx, (double)ry)); 119 PetscFunctionReturn(0); 120 } 121 122 static PetscErrorCode PetscDrawString_TikZ(PetscDraw draw, PetscReal xl, PetscReal yl, int cl, const char text[]) { 123 PetscDraw_TikZ *win = (PetscDraw_TikZ *)draw->data; 124 125 PetscFunctionBegin; 126 win->written = PETSC_TRUE; 127 PetscCall(PetscFPrintf(PetscObjectComm((PetscObject)draw), win->fd, "\\node [above right, %s] at (%g,%g) {%s};\n", TikZColorMap(cl), XTRANS(draw, xl), YTRANS(draw, yl), text)); 128 PetscFunctionReturn(0); 129 } 130 131 static PetscErrorCode PetscDrawStringVertical_TikZ(PetscDraw draw, PetscReal xl, PetscReal yl, int cl, const char text[]) { 132 PetscDraw_TikZ *win = (PetscDraw_TikZ *)draw->data; 133 size_t len; 134 PetscReal width; 135 136 PetscFunctionBegin; 137 win->written = PETSC_TRUE; 138 PetscCall(PetscStrlen(text, &len)); 139 PetscCall(PetscDrawStringGetSize(draw, &width, NULL)); 140 yl = yl - len * width * (draw->coor_yr - draw->coor_yl) / (draw->coor_xr - draw->coor_xl); 141 PetscCall(PetscFPrintf(PetscObjectComm((PetscObject)draw), win->fd, "\\node [rotate=90, %s] at (%g,%g) {%s};\n", TikZColorMap(cl), XTRANS(draw, xl), YTRANS(draw, yl), text)); 142 PetscFunctionReturn(0); 143 } 144 145 /* 146 Does not handle multiline strings correctly 147 */ 148 static PetscErrorCode PetscDrawStringBoxed_TikZ(PetscDraw draw, PetscReal xl, PetscReal yl, int cl, int ct, const char text[], PetscReal *w, PetscReal *h) { 149 PetscDraw_TikZ *win = (PetscDraw_TikZ *)draw->data; 150 size_t len; 151 152 PetscFunctionBegin; 153 win->written = PETSC_TRUE; 154 PetscCall(PetscFPrintf(PetscObjectComm((PetscObject)draw), win->fd, "\\draw (%g,%g) node [rectangle, draw, align=center, inner sep=1ex] {%s};\n", XTRANS(draw, xl), YTRANS(draw, yl), text)); 155 156 /* make up totally bogus height and width of box */ 157 PetscCall(PetscStrlen(text, &len)); 158 if (w) *w = .07 * len; 159 if (h) *h = .07; 160 PetscFunctionReturn(0); 161 } 162 163 static PetscErrorCode PetscDrawStringGetSize_TikZ(PetscDraw draw, PetscReal *x, PetscReal *y) { 164 PetscFunctionBegin; 165 if (x) *x = .014 * (draw->coor_xr - draw->coor_xl) / ((draw->port_xr - draw->port_xl)); 166 if (y) *y = .05 * (draw->coor_yr - draw->coor_yl) / ((draw->port_yr - draw->port_yl)); 167 PetscFunctionReturn(0); 168 } 169 170 static struct _PetscDrawOps DvOps = {NULL, NULL, PetscDrawLine_TikZ, NULL, NULL, NULL, NULL, PetscDrawString_TikZ, PetscDrawStringVertical_TikZ, NULL, PetscDrawStringGetSize_TikZ, NULL, PetscDrawClear_TikZ, PetscDrawRectangle_TikZ, PetscDrawTriangle_TikZ, PetscDrawEllipse_TikZ, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, PetscDrawDestroy_TikZ, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, PetscDrawStringBoxed_TikZ}; 171 172 PETSC_EXTERN PetscErrorCode PetscDrawCreate_TikZ(PetscDraw draw) { 173 PetscDraw_TikZ *win; 174 175 PetscFunctionBegin; 176 PetscCall(PetscMemcpy(draw->ops, &DvOps, sizeof(DvOps))); 177 PetscCall(PetscNew(&win)); 178 PetscCall(PetscLogObjectMemory((PetscObject)draw, sizeof(PetscDraw_TikZ))); 179 180 draw->data = (void *)win; 181 182 if (draw->title) { 183 PetscCall(PetscStrallocpy(draw->title, &win->filename)); 184 } else { 185 const char *fname; 186 PetscCall(PetscObjectGetName((PetscObject)draw, &fname)); 187 PetscCall(PetscStrallocpy(fname, &win->filename)); 188 } 189 PetscCall(PetscFOpen(PetscObjectComm((PetscObject)draw), win->filename, "w", &win->fd)); 190 PetscCall(PetscFPrintf(PetscObjectComm((PetscObject)draw), win->fd, TikZ_BEGIN_DOCUMENT)); 191 PetscCall(PetscFPrintf(PetscObjectComm((PetscObject)draw), win->fd, TikZ_BEGIN_FRAME)); 192 193 win->written = PETSC_FALSE; 194 PetscFunctionReturn(0); 195 } 196