Can not generate trajectories

[MzXuan]

Hi, Thanks for your code.

However, our trajectory generation seems does not work well. We can not see a complete trajectory from the viewer.
The viewer shows trajectory generation procedure as follows,

And the recorded result in the file below.
2018-11-22-viewer.03.ppms.gz

Here is our code to generate trajectories.

Thanks for your help.

[ahq1993]

Hi,
Try setting up following
-->graph_renderer.cpp
i=0 // line 192
-->rrts_main.cpp
(i=0;i<1;i++) //line96
int t=0;t<100;t++ //line111

Thanks for pointing it out. I noticed the code is looping over environments rather than random start and goal. I have updated the code either use revised repo or modify the above line in your code and see if it works.

[MzXuan]

Hi,
Thanks for your reply.

I still have some problems on generating trajectories. In rrt_main.cpp line 107,

MPNet/data_generation/rrtstar/src/rrts_main.cpp

Line 107 in 94cebe2

path="graph/graph"+env_no+".dat";

Seems you read a graph_envno.data which contains the start and goal point. However, I can not find where to generate this graph file.
Can you help me to fix it?

Thank you very much.

[doctorsrn]

@MzXuan
Hi,
I meet the same problem that can not see a trajectory from the viewer, even though I have updated the code and modify some lines. Do you fix it?

Thank you very much.

[MzXuan]

@doctorsrn
No, I haven't..

[ahq1993]

Hi,
Sorry for the late response. I have tested the code, and it is working perfectly fine. If you see line 111 in rrts_main.cpp, the algorithms loads graph files from the graph folder which I think aren't linked in your code. Here are the quick steps to make it work:
1- Download graph.zip and place the unzipped graph folder in the data_generation.
2- I also included the following lines (line 55-56) in the rrts_main.cpp
string env_path="env";
mkdir(env_path.c_str(),ACCESSPERMS);
The above lines will automatically create an "env" folder where the data_generation code will save the generated paths.

[bbrito]

I tried your solution and it creates the following error:

error: expected constructor, destructor, or type conversion before ‘(’ token
mkdir(env_path.c_str(),ACCESSPERMS); // create folder with env label to store generated trajectories

Do you know how to fix it? Or am I doing something wrong?

[bbrito]

I moved line 56 to line 63 and then it compiles fine. I don't know if this is a proper fix.

[doctorsrn]

@ahq1993
Hi,
Thanks for your reply. I follow your steps and meet the same error as @bbrito . After I move the line56 mkdir(env_path.c_str(),ACCESSPERMS); to the main function, it compiles with no error. And now the viewer and rrtstar works normally.

[ZQ32]

@ ahq1993
嗨，
谢谢您的答复。我按照您的步骤操作，遇到了与@bbrito相同的错误。将line56 mkdir(env_path.c_str(),ACCESSPERMS); 移至main函数后，它编译无误。现在viewer和rrtstar可以正常使用。

I performed your operation, and there was no problem in compiling, but running the rrtstare and viewer executable files, the following situations occurred, can you help solve it?

[yaozhixin3190]

@ ahq1993
嗨，
谢谢您的答复。我按照您的步骤操作，遇到了与@bbrito相同的错误。将line56 mkdir(env_path.c_str(),ACCESSPERMS); 移至main函数后，它编译无误。现在viewer和rrtstar可以正常使用。

I performed your operation, and there was no problem in compiling, but running the rrtstare and viewer executable files, the following situations occurred, can you help solve it?

I have met the same bug, did you solve it?