Is openCV 3.2 suitable for this package?

[Ohayooooo]

When I run catkin_make, there are some errors:

Built target extract_positive_training_clusters /home/ohayoo/catkin_ws/src/leg_tracker/src/detect_leg_clusters.cpp: In member function ‘void DetectLegClusters::laserCallback(const ConstPtr&)’: /home/ohayoo/catkin_ws/src/leg_tracker/src/detect_leg_clusters.cpp:213:19: error: ‘class cv::ml::RTrees’ has no member named ‘getVotes’ forest->getVotes(cv::cvarrToMat(tmp_mat), result, 0); ^ I use openCV 3.2. Is the version appropriate?

[clement91190]

yes, i get the same problem. any fix ?

[angusleigh]

I can't reproduce. Can you pull and try again? It might be fixed after https://github.com/angusleigh/leg_tracker/commit/e073904709dd2f54dc5291270b516e7a018f8e28

[DavidHan008]

yes, i get the same problem. any fix ?

[DavidHan008]

detect_leg_clusters.cpp:213:19: error: ‘class cv::ml::RTrees’ has no member named ‘getVotes’ forest->getVotes(cv::cvarrToMat(tmp_mat), result, 0);

[DavidHan008]

ubuntu14.04 ros_indigo

[angusleigh]

Oh boy, I looks like this commit is not backwards compatible to OpenCV 3.2 or earlier. Are you able to update past OpenCV 3.3? If not, I suppose a temporary, hacky solution would be to just revert that change locally in your workspace.

Ref: This is the function we call in OpenCV 3.4: https://docs.opencv.org/3.4/d0/d65/classcv_1_1ml_1_1RTrees.html#a46cd96dee4738c07899067344efe2956 But it looks like it was newly added as it isn't in the OpenCV 3.2 docs: https://docs.opencv.org/3.2.0/d0/d65/classcv_1_1ml_1_1RTrees.html#details

[memexiaoda]

其上传的代码有误，forest.load(forest_file.c_str()); featcount = forest.get_active_var_mask()->cols; forest = cv::ml::StatModel::load(forest_file); featcount = forest->getVarCount(); 把源代码删掉，换成这个

[memexiaoda]

how to running leg_tracker on own robot?

[angusleigh]

Fixed in 5d00d51. Try pulling and running again from head.

[jnisa]

Anyone knows how to solve this problem for ROS Melodic in Ubuntu 18.04? My OpenCV version is 3.2. Thanks in advance

[angusleigh]

I thought 5d00d51 would fix it. Can you pull and try again? What's your error message? You might be able to try manually deleting this section of code to see if it's just the compiler directive not working properly? https://github.com/angusleigh/leg_tracker/blob/melodic/src/detect_leg_clusters.cpp#L213-L220