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 "\\documentclass{beamer}\n\n\ 14 \\usepackage{tikz}\n\ 15 \\usepackage{pgflibraryshapes}\n\ 16 \\usetikzlibrary{backgrounds}\n\ 17 \\usetikzlibrary{arrows}\n\ 18 \\newenvironment{changemargin}[2]{%%\n\ 19 \\begin{list}{}{%%\n\ 20 \\setlength{\\topsep}{0pt}%%\n\ 21 \\setlength{\\leftmargin}{#1}%%\n\ 22 \\setlength{\\rightmargin}{#2}%%\n\ 23 \\setlength{\\listparindent}{\\parindent}%%\n\ 24 \\setlength{\\itemindent}{\\parindent}%%\n\ 25 \\setlength{\\parsep}{\\parskip}%%\n\ 26 }%%\n\ 27 \\item[]}{\\end{list}}\n\n\ 28 \\begin{document}\n" 29 30 #define TikZ_BEGIN_FRAME "\\begin{frame}{}\n\ 31 \\begin{changemargin}{-1cm}{0cm}\n\ 32 \\begin{center}\n\ 33 \\begin{tikzpicture}[scale = 10.00,font=\\fontsize{8}{8}\\selectfont]\n" 34 35 #define TikZ_END_FRAME "\\end{tikzpicture}\n\ 36 \\end{center}\n\ 37 \\end{changemargin}\n\ 38 \\end{frame}\n" 39 40 #define TikZ_END_DOCUMENT "\\end{document}\n" 41 42 static PetscErrorCode PetscDrawDestroy_TikZ(PetscDraw draw) 43 { 44 PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data; 45 PetscErrorCode ierr; 46 47 PetscFunctionBegin; 48 ierr = PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,TikZ_END_FRAME);CHKERRQ(ierr); 49 ierr = PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,TikZ_END_DOCUMENT);CHKERRQ(ierr); 50 ierr = PetscFClose(PetscObjectComm((PetscObject)draw),win->fd);CHKERRQ(ierr); 51 ierr = PetscFree(win->filename);CHKERRQ(ierr); 52 ierr = PetscFree(draw->data);CHKERRQ(ierr); 53 PetscFunctionReturn(0); 54 } 55 56 static const char *TikZColors[] = {"white","black","red","green","cyan","blue","magenta",0,0,"orange","violet","brown","pink",0,"yellow",0}; 57 58 PETSC_STATIC_INLINE const char *TikZColorMap(int cl) 59 { 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 { 71 PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data; 72 PetscBool written; 73 PetscErrorCode ierr; 74 75 PetscFunctionBegin; 76 /* often PETSc generates unneeded clears, we want avoid creating empy pictures for them */ 77 ierr = MPI_Allreduce(&win->written,&written,1,MPIU_BOOL,MPI_LOR,PetscObjectComm((PetscObject)(draw)));CHKERRQ(ierr); 78 if (!written) PetscFunctionReturn(0); 79 ierr = PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,TikZ_END_FRAME);CHKERRQ(ierr); 80 ierr = PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,TikZ_BEGIN_FRAME);CHKERRQ(ierr); 81 win->written = PETSC_FALSE; 82 PetscFunctionReturn(0); 83 } 84 85 static PetscErrorCode PetscDrawLine_TikZ(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr,int cl) 86 { 87 PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data; 88 PetscErrorCode ierr; 89 90 PetscFunctionBegin; 91 win->written = PETSC_TRUE; 92 ierr = 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));CHKERRQ(ierr); 93 PetscFunctionReturn(0); 94 } 95 96 static PetscErrorCode PetscDrawString_TikZ(PetscDraw draw,PetscReal xl,PetscReal yl,int cl,const char text[]) 97 { 98 PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data; 99 PetscErrorCode ierr; 100 101 PetscFunctionBegin; 102 win->written = PETSC_TRUE; 103 ierr = PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,"\\node [above right, %s] at (%g,%g) {%s};\n",TikZColorMap(cl),XTRANS(draw,xl),YTRANS(draw,yl),text);CHKERRQ(ierr); 104 PetscFunctionReturn(0); 105 } 106 107 static PetscErrorCode PetscDrawStringVertical_TikZ(PetscDraw draw,PetscReal xl,PetscReal yl,int cl,const char text[]) 108 { 109 PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data; 110 PetscErrorCode ierr; 111 size_t len; 112 PetscReal width; 113 114 PetscFunctionBegin; 115 win->written = PETSC_TRUE; 116 ierr = PetscStrlen(text,&len);CHKERRQ(ierr); 117 ierr = PetscDrawStringGetSize(draw,&width,NULL);CHKERRQ(ierr); 118 yl = yl - len*width*(draw->coor_yr - draw->coor_yl)/(draw->coor_xr - draw->coor_xl); 119 ierr = PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,"\\node [rotate=90, %s] at (%g,%g) {%s};\n",TikZColorMap(cl),XTRANS(draw,xl),YTRANS(draw,yl),text);CHKERRQ(ierr); 120 PetscFunctionReturn(0); 121 } 122 123 /* 124 Does not handle multiline strings correctly 125 */ 126 static PetscErrorCode PetscDrawStringBoxed_TikZ(PetscDraw draw,PetscReal xl,PetscReal yl,int cl,int ct,const char text[],PetscReal *w,PetscReal *h) 127 { 128 PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data; 129 PetscErrorCode ierr; 130 size_t len; 131 132 PetscFunctionBegin; 133 win->written = PETSC_TRUE; 134 ierr = 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);CHKERRQ(ierr); 135 136 /* make up totally bogus height and width of box */ 137 ierr = PetscStrlen(text,&len);CHKERRQ(ierr); 138 if (w) *w = .07*len; 139 if (h) *h = .07; 140 PetscFunctionReturn(0); 141 } 142 143 static PetscErrorCode PetscDrawStringGetSize_TikZ(PetscDraw draw,PetscReal *x,PetscReal *y) 144 { 145 PetscFunctionBegin; 146 if (x) *x = .014*(draw->coor_xr - draw->coor_xl)/((draw->port_xr - draw->port_xl)); 147 if (y) *y = .05*(draw->coor_yr - draw->coor_yl)/((draw->port_yr - draw->port_yl)); 148 PetscFunctionReturn(0); 149 } 150 151 static struct _PetscDrawOps DvOps = { 0, 152 0, 153 PetscDrawLine_TikZ, 154 0, 155 0, 156 0, 157 0, 158 PetscDrawString_TikZ, 159 PetscDrawStringVertical_TikZ, 160 0, 161 PetscDrawStringGetSize_TikZ, 162 0, 163 PetscDrawClear_TikZ, 164 0, 165 0, 166 0, 167 0, 168 0, 169 0, 170 0, 171 0, 172 0, 173 0, 174 0, 175 PetscDrawDestroy_TikZ, 176 0, 177 0, 178 0, 179 0, 180 0, 181 0, 182 0, 183 0, 184 0, 185 0, 186 PetscDrawStringBoxed_TikZ}; 187 188 PETSC_EXTERN PetscErrorCode PetscDrawCreate_TikZ(PetscDraw draw) 189 { 190 PetscDraw_TikZ *win; 191 PetscErrorCode ierr; 192 193 PetscFunctionBegin; 194 ierr = PetscMemcpy(draw->ops,&DvOps,sizeof(DvOps));CHKERRQ(ierr); 195 ierr = PetscNew(&win);CHKERRQ(ierr); 196 ierr = PetscLogObjectMemory((PetscObject)draw,sizeof(PetscDraw_TikZ));CHKERRQ(ierr); 197 198 draw->data = (void*) win; 199 200 if (draw->title) { 201 ierr = PetscStrallocpy(draw->title,&win->filename);CHKERRQ(ierr); 202 } else { 203 const char *fname; 204 ierr = PetscObjectGetName((PetscObject)draw,&fname);CHKERRQ(ierr); 205 ierr = PetscStrallocpy(fname,&win->filename);CHKERRQ(ierr); 206 } 207 ierr = PetscFOpen(PetscObjectComm((PetscObject)draw),win->filename,"w",&win->fd);CHKERRQ(ierr); 208 ierr = PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,TikZ_BEGIN_DOCUMENT);CHKERRQ(ierr); 209 ierr = PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,TikZ_BEGIN_FRAME);CHKERRQ(ierr); 210 211 win->written = PETSC_FALSE; 212 PetscFunctionReturn(0); 213 } 214