lisyarus/psemek
1
0
Fork 1
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fix geom::intersection(segment,box) for axis-aligned segments

Browse source
This commit is contained in:
Nikita Lisitsa 2022-06-19 22:25:56 +03:00
parent 0bddeaf865
commit 0cb197a6c4
1 changed files with 12 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
libs/geom/include/psemek/geom/intersection.hpp
View file

@ -139,12 +139,20 @@ namespace psemek::geom
for (std::size_t i = 0; i < N; ++i)
{
T tmin = (b[i].min - s[0][i]) / (s[1][i] - s[0][i]);
T tmax = (b[i].max - s[0][i]) / (s[1][i] - s[0][i]);
if (s[1][i] != s[0][i])
{
T tmin = (b[i].min - s[0][i]) / (s[1][i] - s[0][i]);
T tmax = (b[i].max - s[0][i]) / (s[1][i] - s[0][i]);
if (tmin > tmax) std::swap(tmin, tmax);
if (tmin > tmax) std::swap(tmin, tmax);
t &= interval<T>{tmin, tmax};
t &= interval<T>{tmin, tmax};
}
else
{
if (!contains(b[i], s[0][i]))
return interval<T>{};
}
}
return t;