#include #include #include #include #include #include #include #include #include #include #include #define MAXN 100005 #define MAXM 211111 #define eps 1e-8 #define INF 50000001 using namespace std; inline int dblcmp(double d) { if(fabs(d) < eps) return 0; return d > eps ? 1 : -1; } struct point { double x, y; point(){} point(double _x, double _y): x(_x), y(_y) {} void input() { scanf("%lf%lf", &x, &y); } bool operator ==(point a)const { return dblcmp(a.x - x) == 0 && dblcmp(a.y - y) == 0; } point sub(point p) { return point(x - p.x, y - p.y); } double dot(point p) { return x * p.x + y * p.y; } double det(point p) { return x * p.y - y * p.x; } double distance(point p) { return hypot(x - p.x, y - p.y); } }p[33]; struct line { point a, b; line(){} line(point _a, point _b){ a = _a; b = _b;} void input() { a.input(); b.input(); } int segcrossseg(line v) { int d1 = dblcmp(b.sub(a).det(v.a.sub(a))); int d2 = dblcmp(b.sub(a).det(v.b.sub(a))); int d3 = dblcmp(v.b.sub(v.a).det(a.sub(v.a))); int d4 = dblcmp(v.b.sub(v.a).det(b.sub(v.a))); if ((d1 ^ d2) == -2 && (d3 ^ d4) == -2)return 2; return (d1 == 0 && dblcmp(v.a.sub(a).dot(v.a.sub(b))) <= 0|| d2 == 0 && dblcmp(v.b.sub(a).dot(v.b.sub(b))) <= 0|| d3 == 0 && dblcmp(a.sub(v.a).dot(a.sub(v.b))) <= 0|| d4 == 0 && dblcmp(b.sub(v.a).dot(b.sub(v.b))) <= 0); } int linecrossseg(line v)//v is seg { int d1 = dblcmp(b.sub(a).det(v.a.sub(a))); int d2 = dblcmp(b.sub(a).det(v.b.sub(a))); if ((d1 ^ d2) == -2) return 2; return (d1 == 0 || d2 == 0); } point crosspoint(line v) { double a1 = v.b.sub(v.a).det(a.sub(v.a)); double a2 = v.b.sub(v.a).det(b.sub(v.a)); return point((a.x * a2 - b.x * a1) / (a2 - a1), (a.y * a2 - b.y * a1) / (a2 - a1)); } }; struct node { string name; vectorseg; }; char sa[55], sb[55]; vectorg; vectorans[55]; bool cmp(node x, node y) { return x.name < y.name; } bool ok(int k1, int k2) { int sz1 = g[k1].seg.size(); int sz2 = g[k2].seg.size(); for(int i = 0; i < sz1; i++) for(int j = 0; j < sz2; j++) if(g[k1].seg[i].segcrossseg(g[k2].seg[j])) return true; return false; } void solve() { for(int i = 0; i < 50; i++) ans[i].clear(); sort(g.begin(), g.end(), cmp); int sz = g.size(); for(int i = 0; i < sz; i++) { for(int j = 0; j < sz; j++) { if(i == j) continue; if(ok(i, j)) ans[i].push_back(g[j].name); } } for(int i = 0; i < sz; i++) { if(ans[i].size() == 0) printf("%s has no intersections\n", g[i].name.c_str()); else { if(ans[i].size() == 1) { printf("%s intersects with %s\n", g[i].name.c_str(), ans[i][0].c_str()); } else if(ans[i].size() == 2) { printf("%s intersects with %s and %s\n", g[i].name.c_str(), ans[i][0].c_str(), ans[i][1].c_str()); } else { printf("%s intersects with ", g[i].name.c_str()); for(int j = 0; j < ans[i].size() - 1; j++) printf("%s, ", ans[i][j].c_str()); printf("and %s\n", ans[i][ans[i].size() - 1].c_str()); } } } g.clear(); printf("\n"); } int main() { double xa, ya, xb, yb; while(scanf("%s", sa) != EOF) { if(strcmp(sa, "-") == 0) { solve(); continue; } if(strcmp(sa, ".") == 0) break; node tmp; tmp.name = sa; scanf("%s", sb); if(sb[0] == 's') { point a, c; scanf(" (%lf,%lf)", &a.x, &a.y); scanf(" (%lf,%lf)", &c.x, &c.y); point b, d; double x, y, mx, my; mx = (a.x + c.x)/2.0, my = (a.y + c.y) / 2.0; x = a.x - mx; y = a.y - my; b.x = -y + mx; b.y = x + my; x = c.x - mx; y = c.y - my; d.x = - y + mx; d.y = x + my; tmp.seg.push_back(line(a, b)); tmp.seg.push_back(line(b, c)); tmp.seg.push_back(line(a, d)); tmp.seg.push_back(line(c, d)); } else if(sb[0] == 'l') { point a, b; scanf(" (%lf,%lf)", &a.x, &a.y); scanf(" (%lf,%lf)", &b.x, &b.y); tmp.seg.push_back(line(a, b)); } else if(sb[0] == 't') { point a, b, c; scanf(" (%lf,%lf)", &a.x, &a.y); scanf(" (%lf,%lf)", &b.x, &b.y); scanf(" (%lf,%lf)", &c.x, &c.y); tmp.seg.push_back(line(a, b)); tmp.seg.push_back(line(a, c)); tmp.seg.push_back(line(b, c)); } else if(sb[0] == 'r') { point a, b, c, d; scanf(" (%lf,%lf)", &a.x, &a.y); scanf(" (%lf,%lf)", &b.x, &b.y); scanf(" (%lf,%lf)", &c.x, &c.y); double dx = b.x - a.x; d.x = c.x - dx; double dy = b.y - a.y; d.y = c.y - dy; tmp.seg.push_back(line(a, b)); tmp.seg.push_back(line(b, c)); tmp.seg.push_back(line(a, d)); tmp.seg.push_back(line(c, d)); } else { int t; scanf("%d", &t); for(int i = 0; i < t; i++) scanf(" (%lf,%lf)", &p[i].x, &p[i].y); for(int i = 0; i < t; i++) tmp.seg.push_back(line(p[i], p[(i + 1) % t])); } g.push_back(tmp); } return 0; }