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1.1 root 1: #include <stdio.h>
2: #include "pic.h"
3: #include "y.tab.h"
4:
5: obj *circgen(int type)
6: {
7: static double rad[2] = { HT2, WID2 };
8: static double rad2[2] = { HT2, HT2 };
9: int i, at, t, with, battr;
10: double xwith, ywith;
11: double r, r2, ddval, fillval;
12: obj *p, *ppos;
13: Attr *ap;
14:
15: battr = at = 0;
16: with = xwith = ywith = fillval = ddval = 0;
17: t = (type == CIRCLE) ? 0 : 1;
18: if (type == CIRCLE)
19: r = r2 = getfval("circlerad");
20: else if (type == ELLIPSE) {
21: r = getfval("ellipsewid") / 2;
22: r2 = getfval("ellipseht") / 2;
23: }
24: for (i = 0; i < nattr; i++) {
25: ap = &attr[i];
26: switch (ap->a_type) {
27: case TEXTATTR:
28: savetext(ap->a_sub, ap->a_val.p);
29: break;
30: case RADIUS:
31: r = ap->a_val.f;
32: break;
33: case DIAMETER:
34: case WIDTH:
35: r = ap->a_val.f / 2;
36: break;
37: case HEIGHT:
38: r2 = ap->a_val.f / 2;
39: break;
40: case SAME:
41: r = rad[t];
42: r2 = rad2[t];
43: break;
44: case WITH:
45: with = ap->a_val.i;
46: break;
47: case AT:
48: ppos = ap->a_val.o;
49: curx = ppos->o_x;
50: cury = ppos->o_y;
51: at++;
52: break;
53: case INVIS:
54: battr |= INVIS;
55: break;
56: case NOEDGE:
57: battr |= NOEDGEBIT;
58: break;
59: case DOT:
60: case DASH:
61: battr |= ap->a_type==DOT ? DOTBIT : DASHBIT;
62: if (ap->a_sub == DEFAULT)
63: ddval = getfval("dashwid");
64: else
65: ddval = ap->a_val.f;
66: break;
67: case FILL:
68: battr |= FILLBIT;
69: if (ap->a_sub == DEFAULT)
70: fillval = getfval("fillval");
71: else
72: fillval = ap->a_val.f;
73: break;
74: }
75: }
76: if (type == CIRCLE)
77: r2 = r; /* probably superfluous */
78: if (with) {
79: switch (with) {
80: case NORTH: ywith = -r2; break;
81: case SOUTH: ywith = r2; break;
82: case EAST: xwith = -r; break;
83: case WEST: xwith = r; break;
84: case NE: xwith = -r * 0.707; ywith = -r2 * 0.707; break;
85: case SE: xwith = -r * 0.707; ywith = r2 * 0.707; break;
86: case NW: xwith = r * 0.707; ywith = -r2 * 0.707; break;
87: case SW: xwith = r * 0.707; ywith = r2 * 0.707; break;
88: }
89: curx += xwith;
90: cury += ywith;
91: }
92: if (!at) {
93: if (isright(hvmode))
94: curx += r;
95: else if (isleft(hvmode))
96: curx -= r;
97: else if (isup(hvmode))
98: cury += r2;
99: else
100: cury -= r2;
101: }
102: p = makenode(type, 2);
103: p->o_val[0] = rad[t] = r;
104: p->o_val[1] = rad2[t] = r2;
105: if (r <= 0 || r2 <= 0) {
106: ERROR "%s has invalid radius %g\n", (type==CIRCLE) ? "circle" : "ellipse", r<r2 ? r : r2 WARNING;
107: }
108: p->o_attr = battr;
109: p->o_ddval = ddval;
110: p->o_fillval = fillval;
111: extreme(curx+r, cury+r2);
112: extreme(curx-r, cury-r2);
113: if (type == CIRCLE)
114: dprintf("C %g %g %g\n", curx, cury, r);
115: if (type == ELLIPSE)
116: dprintf("E %g %g %g %g\n", curx, cury, r, r2);
117: if (isright(hvmode))
118: curx += r;
119: else if (isleft(hvmode))
120: curx -= r;
121: else if (isup(hvmode))
122: cury += r2;
123: else
124: cury -= r2;
125: return(p);
126: }
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