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Use T as temp var type in polyanticlockwise()

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To match the input data type.
Cast inner computation to double to prevent int overflows for any
input type.
This commit is contained in:
Yannis Guyon
2022-08-08 22:41:05 +02:00
parent 8eaa8ac1cb
commit cd97cad52d
1 changed files with 6 additions and 6 deletions
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12
modules/mcc/src/common.hpp
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@@ -79,10 +79,10 @@ void polyanticlockwise(std::vector<T> &points)
// Sort the points in anti-clockwise order
// Trace a line between the first and second point.
// If the third point is at the right side, then the points are anti-clockwise
cv::Point v1 = points[1] - points[0];
cv::Point v2 = points[2] - points[0];
T v1 = points[1] - points[0];
T v2 = points[2] - points[0];
double o = (v1.x * v2.y) - (v1.y * v2.x);
double o = ((double)v1.x * v2.y) - ((double)v1.y * v2.x);
if (o < 0.0) //if the third point is in the left side, then sort in anti-clockwise order
std::swap(points[1], points[3]);
@@ -93,10 +93,10 @@ void polyclockwise(std::vector<T> &points)
// Sort the points in clockwise order
// Trace a line between the first and second point.
// If the third point is at the right side, then the points are clockwise
cv::Point v1 = points[1] - points[0];
cv::Point v2 = points[2] - points[0];
T v1 = points[1] - points[0];
T v2 = points[2] - points[0];
double o = (v1.x * v2.y) - (v1.y * v2.x);
double o = ((double)v1.x * v2.y) - ((double)v1.y * v2.x);
if (o > 0.0) //if the third point is in the left side, then sort in clockwise order
std::swap(points[1], points[3]);