xiaohulugo / 3dlinedetection Goto Github PK

Could you please assist me to fix this issue?

'Starting build...
/usr/bin/g++ -fdiagnostics-color=always -g /home/amirabb/Desktop/3D_line_detection/3DLineDetection-1/src/main.cpp -o /home/amirabb/Desktop/3D_line_detection/3DLineDetection-1/src/main
/usr/bin/ld: /tmp/ccL2cPu8.o: in function main': /home/amirabb/Desktop/3D_line_detection/3DLineDetection-1/src/main.cpp:125: undefined reference to LineDetection3D::LineDetection3D()'
/usr/bin/ld: /home/amirabb/Desktop/3D_line_detection/3DLineDetection-1/src/main.cpp:129: undefined reference to LineDetection3D::run(PointCloud<double>&, int, std::vector<PLANE, std::allocator<PLANE> >&, std::vector<std::vector<cv::Point3_<double>, std::allocator<cv::Point3_<double> > >, std::allocator<std::vector<cv::Point3_<double>, std::allocator<cv::Point3_<double> > > > >&, std::vector<double, std::allocator<double> >&)' /usr/bin/ld: /home/amirabb/Desktop/3D_line_detection/3DLineDetection-1/src/main.cpp:135: undefined reference to LineDetection3D::~LineDetection3D()'
/usr/bin/ld: /home/amirabb/Desktop/3D_line_detection/3DLineDetection-1/src/main.cpp:135: undefined reference to `LineDetection3D::~LineDetection3D()'
collect2: error: ld returned 1 exit status

Build finished with error(s).

• The terminal process terminated with exit code: -1.
• Terminal will be reused by tasks, press any key to close it'

Hi,

The project looks really cool so I tried to build it. I have not touched C/C++ before so excuse me but I have an error during the make process that I can't understand.

I am on ubuntu 18.04. Cmake version 3.10.2. OpenCV version 3.4.2. I installed the following packages through the ubuntu to package manager for OpenMPI dependency:

• openmpi-bin
• openmpi-common
• openssh-client
• openssh-server

The steps I take are as follows:

1. Install dependencies
2. Download sample file birdfountain_station1_xyz_intensity_rgb.7z and unziphere
3. Update main.cpp line 117 to reflect absolute location of downloaded sample
4. Update main.cpp line 118 to update the results destination
5. run cmake at folder root
6. run make at folder root

This produces the following error:

[ 25%] Building CXX object src/CMakeFiles/LineFromPointCloud.dir/main.cpp.o
/home/bigdoods/projects/3DLineDetection/src/main.cpp:115:11: error: ‘::main’ must return ‘int’
 void main() 
           ^
src/CMakeFiles/LineFromPointCloud.dir/build.make:110: recipe for target 'src/CMakeFiles/LineFromPointCloud.dir/main.cpp.o' failed
make[2]: *** [src/CMakeFiles/LineFromPointCloud.dir/main.cpp.o] Error 1
CMakeFiles/Makefile2:85: recipe for target 'src/CMakeFiles/LineFromPointCloud.dir/all' failed
make[1]: *** [src/CMakeFiles/LineFromPointCloud.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2

Could you please advise how to get working please?

I tried the codes on Bremen TLS dataset (which should be similar to Semantic3D), however the results is strange. Those lines are not overlaid on the original point cloud. I'd like to figure it out.
Thanks.

error: ‘CV_RETR_LIST’ was not declared in this scope
cv::findContours(mask2, contours, hierarchy, CV_RETR_LIST, CV_CHAIN_APPROX_NONE);
^~~~~~~~~~~~

Inside this program line

感谢您提供的代码，但是我在运用过程中出现了如下结果

有很多线段飞出了地图的范围，想请教您出现这样情况的问题所在。

`void main()
{
string fileData = "D://Facade//data.txt";
string fileOut = "D://Facade//data";

// read in data
PointCloud<double> pointData; 
readDataFromFile( fileData, pointData );

int k = 20;
LineDetection3D detector;
std::vector<PLANE> planes;
std::vector<std::vector<cv::Point3d> > lines;
std::vector<double> ts;
detector.run( pointData, k, planes, lines, ts );
cout<<"lines number: "<<lines.size()<<endl;
cout<<"planes number: "<<planes.size()<<endl;

writeOutPlanes( fileOut, planes, detector.scale );
writeOutLines( fileOut, lines, detector.scale );

}`

What does the K value mean?
I have seen that the k value is used in other functions as well.
I'm curious about what k does and why it's set to 20.
And can better results be obtained by changing the value of k depending on the data used?

I want to test your code.
Could u plz provided some data file?
In the main.cpp there are lines:
string fileData = "D://Facade//data.txt";
string fileOut = "D://Facade//data";
I do not know how to change it in linux OS.
Thx in advance.

hello,
thank you for sharing such a nice code in advance
it's working well in my laptop :-)

but when I got my output files which are line.txt, plane.txt
I just don't know how to visualize this file like a picture in README.md file

Hello, Is it need to install openCV libraries? Beacuse they show me this message when I build with CMake.
CMake Error at CMakeLists.txt:11 (message):
message called with incorrect number of arguments