Actual source code: tikz.c
1: /*
2: Defines the operations for the TikZ PetscDraw implementation.
3: */
5: #include <petsc/private/drawimpl.h>
7: typedef struct {
8: char *filename;
9: FILE *fd;
10: PetscBool written; /* something has been written to the current frame */
11: } PetscDraw_TikZ;
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"
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"
35: #define TikZ_END_FRAME "\\end{tikzpicture}\n\
36: \\end{center}\n\
37: \\end{changemargin}\n\
38: \\end{frame}\n"
40: #define TikZ_END_DOCUMENT "\\end{document}\n"
42: static PetscErrorCode PetscDrawDestroy_TikZ(PetscDraw draw)
43: {
44: PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data;
46: PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,TikZ_END_FRAME);
47: PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,TikZ_END_DOCUMENT);
48: PetscFClose(PetscObjectComm((PetscObject)draw),win->fd);
49: PetscFree(win->filename);
50: PetscFree(draw->data);
51: return 0;
52: }
54: static const char *TikZColors[] = {"white","black","red","green","cyan","blue","magenta",NULL,NULL,"orange","violet","brown","pink",NULL,"yellow",NULL};
56: static inline const char *TikZColorMap(int cl)
57: {
58: return((cl < 16) ? (TikZColors[cl] ? TikZColors[cl] : "black") : "black");
59: }
61: /*
62: These macros transform from the users coordinates to the (0,0) -> (1,1) coordinate system
63: */
64: #define XTRANS(draw,x) (double)(((draw)->port_xl + (((x - (draw)->coor_xl)*((draw)->port_xr - (draw)->port_xl))/((draw)->coor_xr - (draw)->coor_xl))))
65: #define YTRANS(draw,y) (double)(((draw)->port_yl + (((y - (draw)->coor_yl)*((draw)->port_yr - (draw)->port_yl))/((draw)->coor_yr - (draw)->coor_yl))))
67: static PetscErrorCode PetscDrawClear_TikZ(PetscDraw draw)
68: {
69: PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data;
70: PetscBool written;
72: /* often PETSc generates unneeded clears, we want avoid creating empy pictures for them */
73: MPI_Allreduce(&win->written,&written,1,MPIU_BOOL,MPI_LOR,PetscObjectComm((PetscObject)(draw)));
74: if (!written) return 0;
75: PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,TikZ_END_FRAME);
76: PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,TikZ_BEGIN_FRAME);
77: win->written = PETSC_FALSE;
78: return 0;
79: }
81: static PetscErrorCode PetscDrawLine_TikZ(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr,int cl)
82: {
83: PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data;
85: win->written = PETSC_TRUE;
86: 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));
87: return 0;
88: }
90: static PetscErrorCode PetscDrawRectangle_TikZ(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr,int c1,int c2,int c3,int c4)
91: {
92: PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data;
94: win->written = PETSC_TRUE;
95: 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));
96: return 0;
97: }
99: static PetscErrorCode PetscDrawTriangle_TikZ(PetscDraw draw,PetscReal x1,PetscReal y1,PetscReal x2,PetscReal y2,PetscReal x3,PetscReal y3,int c1,int c2,int c3)
100: {
101: PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data;
103: win->written = PETSC_TRUE;
104: 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));
105: return 0;
106: }
108: static PetscErrorCode PetscDrawEllipse_TikZ(PetscDraw draw,PetscReal x,PetscReal y,PetscReal a,PetscReal b,int c)
109: {
110: PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data;
111: PetscReal rx,ry;
113: win->written = PETSC_TRUE;
114: rx = a/2*(draw->port_xr-draw->port_xl)/(draw->coor_xr-draw->coor_xl);
115: ry = b/2*(draw->port_yr-draw->port_yl)/(draw->coor_yr-draw->coor_yl);
116: 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);
117: return 0;
118: }
120: static PetscErrorCode PetscDrawString_TikZ(PetscDraw draw,PetscReal xl,PetscReal yl,int cl,const char text[])
121: {
122: PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data;
124: win->written = PETSC_TRUE;
125: PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,"\\node [above right, %s] at (%g,%g) {%s};\n",TikZColorMap(cl),XTRANS(draw,xl),YTRANS(draw,yl),text);
126: return 0;
127: }
129: static PetscErrorCode PetscDrawStringVertical_TikZ(PetscDraw draw,PetscReal xl,PetscReal yl,int cl,const char text[])
130: {
131: PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data;
132: size_t len;
133: PetscReal width;
135: win->written = PETSC_TRUE;
136: PetscStrlen(text,&len);
137: PetscDrawStringGetSize(draw,&width,NULL);
138: yl = yl - len*width*(draw->coor_yr - draw->coor_yl)/(draw->coor_xr - draw->coor_xl);
139: PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,"\\node [rotate=90, %s] at (%g,%g) {%s};\n",TikZColorMap(cl),XTRANS(draw,xl),YTRANS(draw,yl),text);
140: return 0;
141: }
143: /*
144: Does not handle multiline strings correctly
145: */
146: static PetscErrorCode PetscDrawStringBoxed_TikZ(PetscDraw draw,PetscReal xl,PetscReal yl,int cl,int ct,const char text[],PetscReal *w,PetscReal *h)
147: {
148: PetscDraw_TikZ *win = (PetscDraw_TikZ*)draw->data;
149: size_t len;
151: win->written = PETSC_TRUE;
152: 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);
154: /* make up totally bogus height and width of box */
155: PetscStrlen(text,&len);
156: if (w) *w = .07*len;
157: if (h) *h = .07;
158: return 0;
159: }
161: static PetscErrorCode PetscDrawStringGetSize_TikZ(PetscDraw draw,PetscReal *x,PetscReal *y)
162: {
163: if (x) *x = .014*(draw->coor_xr - draw->coor_xl)/((draw->port_xr - draw->port_xl));
164: if (y) *y = .05*(draw->coor_yr - draw->coor_yl)/((draw->port_yr - draw->port_yl));
165: return 0;
166: }
168: static struct _PetscDrawOps DvOps = { NULL,
169: NULL,
170: PetscDrawLine_TikZ,
171: NULL,
172: NULL,
173: NULL,
174: NULL,
175: PetscDrawString_TikZ,
176: PetscDrawStringVertical_TikZ,
177: NULL,
178: PetscDrawStringGetSize_TikZ,
179: NULL,
180: PetscDrawClear_TikZ,
181: PetscDrawRectangle_TikZ,
182: PetscDrawTriangle_TikZ,
183: PetscDrawEllipse_TikZ,
184: NULL,
185: NULL,
186: NULL,
187: NULL,
188: NULL,
189: NULL,
190: NULL,
191: NULL,
192: PetscDrawDestroy_TikZ,
193: NULL,
194: NULL,
195: NULL,
196: NULL,
197: NULL,
198: NULL,
199: NULL,
200: NULL,
201: NULL,
202: NULL,
203: PetscDrawStringBoxed_TikZ};
205: PETSC_EXTERN PetscErrorCode PetscDrawCreate_TikZ(PetscDraw draw)
206: {
207: PetscDraw_TikZ *win;
209: PetscMemcpy(draw->ops,&DvOps,sizeof(DvOps));
210: PetscNew(&win);
211: PetscLogObjectMemory((PetscObject)draw,sizeof(PetscDraw_TikZ));
213: draw->data = (void*) win;
215: if (draw->title) {
216: PetscStrallocpy(draw->title,&win->filename);
217: } else {
218: const char *fname;
219: PetscObjectGetName((PetscObject)draw,&fname);
220: PetscStrallocpy(fname,&win->filename);
221: }
222: PetscFOpen(PetscObjectComm((PetscObject)draw),win->filename,"w",&win->fd);
223: PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,TikZ_BEGIN_DOCUMENT);
224: PetscFPrintf(PetscObjectComm((PetscObject)draw),win->fd,TikZ_BEGIN_FRAME);
226: win->written = PETSC_FALSE;
227: return 0;
228: }