11 double x0, y0, x1, y1, ox, oy, dx, dy, ndx, ndy;
13 for (i = 0; i < nobj; i++) {
26 troff(text[p->o_nt1].t_val);
34 if (p->o_attr & FILLBIT) {
36 fillstart(p->o_fillval);
38 if (p->o_attr & INVIS || p->o_type == BLOCK)
39 ; /* nothing at all */
40 else if (p->o_attr & (DOTBIT|DASHBIT))
41 dotbox(x0, y0, x1, y1, p->o_attr, p->o_ddval);
44 if (p->o_attr & FILLBIT)
47 dotext(p); /* if there are any text strings */
49 move(isright(m) ? x1 : x0, oy); /* right side */
51 move(ox, isdown(m) ? y0 : y1); /* bottom */
56 if (p->o_attr & FILLBIT)
57 fillstart(p->o_fillval);
58 if ((p->o_attr & INVIS) == 0)
60 if (p->o_attr & FILLBIT)
65 move(ox + isright(m) ? x1 : -x1, oy);
67 move(ox, oy + isup(m) ? x1 : -x1);
70 if (p->o_attr & FILLBIT)
71 fillstart(p->o_fillval);
72 if ((p->o_attr & INVIS) == 0)
73 ellipse(ox, oy, x1, y1);
74 if (p->o_attr & FILLBIT)
79 move(ox + isright(m) ? x1 : -x1, oy);
81 move(ox, oy - isdown(m) ? y1 : -y1);
86 if (p->o_attr & HEAD1)
87 arrow(x1 - (y1 - oy), y1 + (x1 - ox),
88 x1, y1, p->o_val[4], p->o_val[5], p->o_val[5]/p->o_val[6]/2, p->o_nhead);
89 if (p->o_attr & INVIS)
90 /* probably wrong when it's cw */
93 arc(ox, oy, x1, y1, p->o_val[2], p->o_val[3]);
94 if (p->o_attr & HEAD2)
95 arrow(p->o_val[2] + p->o_val[3] - oy, p->o_val[3] - (p->o_val[2] - ox),
96 p->o_val[2], p->o_val[3], p->o_val[4], p->o_val[5], -p->o_val[5]/p->o_val[6]/2, p->o_nhead);
97 if (p->o_attr & CW_ARC)
98 move(x1, y1); /* because drawn backwards */
103 move((ox + x1)/2, (oy + y1)/2); /* center */
105 if (p->o_attr & HEAD1)
106 arrow(ox + p->o_val[5], oy + p->o_val[6], ox, oy, p->o_val[2], p->o_val[3], 0.0, p->o_nhead);
107 if (p->o_attr & INVIS)
109 else if (p->o_type == SPLINE)
110 spline(ox, oy, p->o_val[4], &p->o_val[5], p->o_attr & (DOTBIT|DASHBIT), p->o_ddval);
114 for (k=0, j=5; k < p->o_val[4]; k++, j += 2) {
115 ndx = dx + p->o_val[j];
116 ndy = dy + p->o_val[j+1];
117 if (p->o_attr & (DOTBIT|DASHBIT))
118 dotline(dx, dy, ndx, ndy, p->o_attr, p->o_ddval);
120 line(dx, dy, ndx, ndy);
125 if (p->o_attr & HEAD2) {
128 for (k = 0, j = 5; k < p->o_val[4] - 1; k++, j += 2) {
132 arrow(dx, dy, x1, y1, p->o_val[2], p->o_val[3], 0.0, p->o_nhead);
146 dotline(double x0, double y0, double x1, double y1, int ddtype, double ddval) /* dotted line */
148 static double prevval = 0.05; /* 20 per inch by default */
155 /* don't save dot/dash value */
158 if (ddtype & DOTBIT) {
159 numdots = sqrt(dx*dx + dy*dy) / prevval + 0.5;
161 for (i = 0; i <= numdots; i++) {
162 a = (double) i / (double) numdots;
163 move(x0 + (a * dx), y0 + (a * dy));
166 } else if (ddtype & DASHBIT) {
167 double d, dashsize, spacesize;
168 d = sqrt(dx*dx + dy*dy);
169 if (d <= 2 * prevval) {
170 line(x0, y0, x1, y1);
173 numdots = d / (2 * prevval) + 1; /* ceiling */
175 spacesize = (d - numdots * dashsize) / (numdots - 1);
177 for (i = 0; i < numdots-1; i++) {
178 a = i * (dashsize + spacesize) / d;
179 b = a + dashsize / d;
180 line(x0 + (a*dx), y0 + (a*dy), x0 + (b*dx), y0 + (b*dy));
182 b = a + spacesize / d;
183 move(x0 + (a*dx), y0 + (a*dy));
185 line(x0 + (b * dx), y0 + (b * dy), x1, y1);
192 dotbox(double x0, double y0, double x1, double y1, int ddtype, double ddval) /* dotted or dashed box */
194 dotline(x0, y0, x1, y0, ddtype, ddval);
195 dotline(x1, y0, x1, y1, ddtype, ddval);
196 dotline(x1, y1, x0, y1, ddtype, ddval);
197 dotline(x0, y1, x0, y0, ddtype, ddval);
201 dotext(obj *p) /* print text strings of p in proper vertical spacing */
205 nhalf = p->o_nt2 - p->o_nt1 - 1;
206 for (i = p->o_nt1; i < p->o_nt2; i++) {
207 label(text[i].t_val, text[i].t_type, nhalf);