1 #include <2geom/region.h>
2 #include <2geom/utils.h>
4 #include <2geom/shape.h>
6 namespace Geom {
8 Region Region::operator*(Matrix const &m) const {
9 Region r((m.flips() ? boundary.reverse() : boundary) * m, fill);
10 if(box && m.onlyScaleAndTranslation()) r.box = (*box) * m;
11 return r;
12 }
14 bool Region::invariants() const {
15 return self_crossings(boundary).empty();
16 }
18 unsigned outer_index(Regions const &ps) {
19 if(ps.size() <= 1 || ps[0].contains(ps[1])) {
20 return 0;
21 } else {
22 /* Since we've already shown that chunks[0] is not outside
23 it can be used as an exemplar inner. */
24 Point exemplar = Path(ps[0]).initialPoint();
25 for(unsigned i = 1; i < ps.size(); i++) {
26 if(ps[i].contains(exemplar)) {
27 return i;
28 }
29 }
30 }
31 return ps.size();
32 }
34 }
36 /*
37 Local Variables:
38 mode:c++
39 c-file-style:"stroustrup"
40 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
41 indent-tabs-mode:nil
42 fill-column:99
43 End:
44 */
45 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :