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Solving the delcaration error

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Skreg 2024-10-17 06:05:56 +00:00 committed by GitHub
parent c0afff51c2
commit 8ea2f4764e
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1 changed files with 52 additions and 1 deletions
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53
modules/imgproc/src/drawing.cpp
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@ -2465,9 +2465,60 @@ void cv::polylines(InputOutputArray img, InputArrayOfArrays pts,
}
polylines(img, (const Point**)ptsptr, npts, (int)ncontours, isClosed, color, thickness, lineType, shift);
}
namespace cv
{
// Declaration of the helper function to draw contours iteratively
void drawContoursIteratively(Mat &image, InputArrayOfArrays _contours, int idx,
const Scalar &color, int thickness, int lineType,
InputArray _hierarchy, Point offset);
// Helper function for drawing contours iteratively
void drawContoursIteratively(Mat &image, InputArrayOfArrays _contours, int idx,
const Scalar &color, int thickness, int lineType,
InputArray _hierarchy, Point offset)
{
// Check if hierarchy is empty and return if it is
if (_hierarchy.empty())
{
CV_Error(Error::StsBadArg, "Hierarchy is empty. Contours cannot be drawn.");
return;
}
Mat hierarchy = _hierarchy.getMat();
std::stack<int> contourStack;
contourStack.push(idx);
while (!contourStack.empty())
{
int currentIdx = contourStack.top();
contourStack.pop();
Mat cnt = _contours.getMat(currentIdx);
if (!cnt.empty())
{
const int npoints = cnt.checkVector(2, CV_32S);
CV_Assert(npoints > 0);
double color_buf[4];
scalarToRawData(color, color_buf, image.type(), 0);
for (int j = 0; j < npoints; ++j)
{
const Point pt1 = cnt.at<Point>(j);
const Point pt2 = cnt.at<Point>((j + 1) % npoints);
cv::ThickLine(image, pt1 + offset, pt2 + offset, color_buf, thickness, lineType, 2, 0);
}
}
// Traverse child contours and push them onto the stack
int childIdx = hierarchy.at<Vec4i>(currentIdx)[2];
while (childIdx >= 0)
{
contourStack.push(childIdx);
childIdx = hierarchy.at<Vec4i>(childIdx)[0];
}
}
}
// Function for drawing contours
void drawContours(InputOutputArray _image, InputArrayOfArrays _contours,
int contourIdx, const Scalar &color, int thickness,