Please, teach me how to multiply a matrix to a vector. I have really no idea. This is my code
#include <iostream>
#include <opencv2/opencv.hpp>
int main()
{
cv::Mat_<float> rotation_matrix = cv::Mat::eye(3, 3, CV_32FC1);
rotation_matrix(0, 0) = 2;
/* Translation vector */
cv::Vec3f current_translation(1.2,
2.3,
3.1);
/* Rotation */
std::cout << current_translation << std::endl;
std::cout << rotation_matrix << std::endl;
std::cout << rotation_matrix.dot(current_translation) << std::endl;
return 0;
}
When I build it, I've got the error:
/home/roman/CLionProjects/opencv_tests/cmake-build-debug/test_e
[1.2, 2.3, 3.1]
[2, 0, 0;
0, 1, 0;
0, 0, 1]
OpenCV Error: Assertion failed (mat.size == size) in dot, file /tmp/binarydeb/ros-kinetic-opencv3-3.3.1/modules/core/src/matmul.cpp, line 3383
terminate called after throwing an instance of 'cv::Exception'
what(): /tmp/binarydeb/ros-kinetic-opencv3-3.3.1/modules/core/src/matmul.cpp:3383: error: (-215) mat.size == size in function dot
Process finished with exit code 134 (interrupted by signal 6: SIGABRT)
I've also tried with '*' operator instead of .dot(), but it crashes even in compiling time. So, help me please.