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Made count_points_on_side_of_line() take a lower threshold in addition to the

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upper threshold.  This changes the function's API.
This commit is contained in:
Davis King 2018-06-22 20:56:31 -04:00
parent 5f9c881f7b
commit 0c652dd46a
2 changed files with 12 additions and 5 deletions
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5
dlib/geometry/line.h
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@ -134,7 +134,8 @@ namespace dlib
line l,
const dpoint& reference_point,
const std::vector<vector<T,2>>& pts,
const double& dist_thresh
const double& dist_thresh_min = 0,
const double& dist_thresh_max = std::numeric_limits<double>::infinity()
)
{
if (signed_distance_to_line(l,reference_point) < 0)
@ -144,7 +145,7 @@ namespace dlib
for (auto& p : pts)
{
double dist = signed_distance_to_line(l,p);
if (0 <= dist && dist <= dist_thresh)
if (dist_thresh_min <= dist && dist <= dist_thresh_max)
++cnt;
}
return cnt;

12
dlib/geometry/line_abstract.h
View File

@ -176,12 +176,18 @@ namespace dlib
const line& l,
const dpoint& reference_point,
const std::vector<vector<T,2>>& pts,
const double& dist_thresh
const double& dist_thresh_min = 0,
const double& dist_thresh_max = std::numeric_limits<double>::infinity()
);
/*!
ensures
- Returns a count of how many points in pts are on the same side of l as
reference_point, but also no more than dist_thresh distance from the line.
- Returns a count of how many points in pts have a distance from the line l
that is in the range [dist_thresh_min, dist_thresh_max]. This distance is a
signed value that indicates how far a point is from the line. Moreover, if
the point is on the same side as reference_point then the distance is
positive, otherwise it is negative. So for example, If this range is [0,
infinity] then this function counts how many points are on the same side of l
as reference_point.
!*/
// ----------------------------------------------------------------------------------------