drawAxis           14 samples/cpp/tutorial_code/ml/introduction_to_pca/introduction_to_pca.cpp void drawAxis(Mat&, Point, Point, Scalar, const float);
drawAxis           85 samples/cpp/tutorial_code/ml/introduction_to_pca/introduction_to_pca.cpp     drawAxis(img, cntr, p1, Scalar(0, 255, 0), 1);
drawAxis           86 samples/cpp/tutorial_code/ml/introduction_to_pca/introduction_to_pca.cpp     drawAxis(img, cntr, p2, Scalar(255, 255, 0), 5);