mpc | A software pipeline using the Model Predictive Control method to drive a car around a virtual track | Robotics library

by mithi C++ Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | mpc Summary

mpc is a C++ library typically used in Automation, Robotics applications. mpc has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This is my turn-in code for one of the project in partial fulfillment of the requirements for Udacity's self-driving car Nanodegree program. In this project, I have implemented a software pipeline using the model predictive control (MPC) method to drive a car around a track in a simulator. There is a 100 millisecond latency between actuation commands on top of the connection latency.

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Quality

Security

License

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Support

mpc has a low active ecosystem.

It has 130 star(s) with 59 fork(s). There are 12 watchers for this library.

It had no major release in the last 6 months.

There are 3 open issues and 0 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of mpc is current.

Quality

mpc has no bugs reported.

Security

mpc has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

mpc is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

mpc releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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mpc Key Features

No Key Features are available at this moment for mpc.

mpc Examples and Code Snippets

No Code Snippets are available at this moment for mpc.

Community Discussions

Trending Discussions on mpc

I was expecting segmentation fault or some kind of out of bound exception but did not get it when using command line arguments in a C program

Installation problem on Raspberry Pi 4 Debian 10

How to fill out an area of a graph with ggplot2

MPC for a mecanum wheeled model using Drake

GCC C++ linking error : Undefined reference to 'WinMain@16'

How can I include header files contained in the same directory as source files?

Updating packages in conda

GLIBCXX not found in local built libstdc++.so.6 GCC10.2.0 on REHL7.4 and CentOS8

Loop through and add values to array via for loop

MySQL: Invalid use of group function updating two columns with update/select

QUESTION

I was expecting segmentation fault or some kind of out of bound exception but did not get it when using command line arguments in a C program

Asked 2021-May-30 at 09:48

I am learning C programming from "Learn c the hard way by Zed Shaw". He asks the learner to try and break their own code.

So I tried the following C code and thought printing more values that I gave argv will break it but it did not until later.

...

ANSWER

Answered 2021-May-30 at 09:48

A segmentation fault happens when the code try to access a memory region that is not available.

Accessing an array out of bounds doesn't means that the memory before or after the area occupied by the array is not available: The compiler or the runtime usually put all varibales or data in general in a given block of memory. If your array is the last item of such a memory block, the accessing it with a to big index will produce a Segmentaion Fault but is the array is in the middle of the memory block, you will just access memory used for other data, giving unexpected result and undefined behavior.

If the array (In may example, but valid for anything) is written, accessing available memory will not produce a segmentation fault but will overwrite something else. It may produce unexpected results or crash or segmentation fault later! This kind of bug is frequently very difficult to find because the unexpected result/behavior looks completely independent of the root cause.

Source https://stackoverflow.com/questions/67759381

QUESTION

Installation problem on Raspberry Pi 4 Debian 10

Asked 2021-May-03 at 08:45

I can't install Onboard-SDK on my raspberry PI. What I should do? I used instruction from and was blocked during use cmake ..: https://developer.dji.com/onboard-sdk/documentation/quickstart/development-environment.html

pi@raspberrypi:~/Onboard-SDK/build $ lsb_release -a

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ANSWER

Answered 2021-May-03 at 08:45

The error message is pretty clear

Cannot Find FFMPEG

You can install it via sudo apt install ffmpeg libavcodec-dev libavformat-dev libavfilter-dev

Source https://stackoverflow.com/questions/67358799

QUESTION

How to fill out an area of a graph with ggplot2

Asked 2021-May-03 at 00:53

I'm working on a graph using R for one of my economics classes, and I want to fill out an area of the graph to represent the deadweight loss.

Below is the code I've used to make the graph:

...

ANSWER

Answered 2021-May-02 at 09:34

Obviously, a triangle is a specific polygon (rather than a rectangle) ;)

You can define a dataframe with the coordinates. I do this inside the geom call. However, from a coding perspective you may want to do this outside. As a side note: you could use this external dataframe to define the points in one geom_point() call as well.

Source https://stackoverflow.com/questions/67352454

QUESTION

MPC for a mecanum wheeled model using Drake

Asked 2021-Apr-26 at 17:58

I'm new to MIT Drake, I was using CasADi (ipopt) for a mecanum wheeled model for MPC.

In CasADi, I can create a symbolic variable for the optimization parameters (i.e., initial state and target state).

Then use it to compute the error in state, how can I get an equivalent functionality in Drake?

...

ANSWER

Answered 2021-Apr-10 at 15:52

I've definitely seen mechanum wheels work in drake, but doing trajectory optimization for them requires some thought. For most every wheeled robot trajectory optimization, you want to use a minimal coordinates model. I discuss that briefly in the ballbot example in the notebook associated with http://underactuated.csail.mit.edu/acrobot.html

And for formulating your MPC, I would recommend the notes in http://underactuated.csail.mit.edu/trajopt.html

Source https://stackoverflow.com/questions/67035718

QUESTION

GCC C++ linking error : Undefined reference to 'WinMain@16'

Asked 2021-Apr-24 at 05:00

I'm have linking issue's on codelite when I try to build my project. I get the error 'undefined reference to 'WinMain@16'.

...

ANSWER

Answered 2021-Apr-24 at 05:00

Rename your main to be WinMain with the following parameters

Source https://stackoverflow.com/questions/67239445

QUESTION

How can I include header files contained in the same directory as source files?

Asked 2021-Apr-20 at 21:11

I have the following arrangement in my project:

And, my CMakeLists.txt has the following text:

...

ANSWER

Answered 2021-Apr-20 at 21:08

As @Cory Kramer Mentioned, You should be including the folder which contains all your header files into cmake, rather than providing the actual files.

If your Header files are in same location as your main file (.cpp) file, then that would not be necessary.

The include_directories are generally used when your include files and your source codes are in diffferent folders ( which generally would be the case on a professionaly maintained code like blas libraries and so on ).

@Edited based on comments by @Devolus

Eg: Lets say if the directory in which your header files are present is "mysourcebase/includepath/directory" then you should do

Source https://stackoverflow.com/questions/67185882

QUESTION

Updating packages in conda

Asked 2021-Apr-14 at 20:26

I have a problem with updating packages in conda. The list of my installed packages is:

...

ANSWER

Answered 2021-Apr-14 at 20:26

Channel pypi means that the package was installed with pip. You may need to upgrade it with pip as well

Source https://stackoverflow.com/questions/67097308

QUESTION

GLIBCXX not found in local built libstdc++.so.6 GCC10.2.0 on REHL7.4 and CentOS8

Asked 2021-Apr-06 at 02:23

I have two servers one of which is running RHEL 7.4 and the other one is CentOS 8 the RHEL comes with gcc 4.8.5 and libc.so.6 at 2.17 the CentOS comes with gcc 8.3.1 and libc 2.28

I built a GCC 10.2 on both server and install to customized path something like /dist/gcc/10.2.0 to built the GCC 10.2, I also built gmp 6.2.0, mpc 1.1.0 and mpfr 4.0.2, those three libs are also install under my customized path like /dist/gmp/6.2.0..

things has been smooth on both servers for a long time, I built all kinds of customized library on both REHL and CentOS with my brand new GCC10.2. However last week I started to build a simple C++ application which links a 3rd party lib( shared object) built with old gcc(4.7 4.8 likely), I know there could be ABI issues so I took that seriously and tried building on both servers. The result is surprising, without D_GLIBCXX_USE_CXX11_ABI=0, CentOS environment builds smoothly but the REHL one complains with something like /......./linux64-demo/../../libs/LINUX64/libsomething.so: undefined reference to `std::ostream::operator<<(double)@GLIBCXX_3.4' which I believe has something to do with ABI, or linking wrong lib, I tried both with and without flag D_GLIBCXX_USE_CXX11_ABI, the result is same.

So I did strings /dist/gcc/10.2.0/lib64/libstdc++.so.6 | grep GLIBC '''

...

ANSWER

Answered 2021-Apr-06 at 02:20

after a whole weekend trail and error, I found that the reason behind all these is because of the aging binutils that comes with the OS

I was inspired by this post https://unix.stackexchange.com/questions/596280/no-version-symbols-in-freshly-compiled-libstdc

simply build a newer version binutils and use that to build the gcc 10.2 solves all these problems.

Source https://stackoverflow.com/questions/66917044

QUESTION

Loop through and add values to array via for loop

Asked 2021-Apr-05 at 16:18

Morning, I am trying to add all my values of Distance and Speed to an array, so I can plot them with PLT. However, python is only appending 1 value, why? What am I doing wrong? Code and output below: '''

...

ANSWER

Answered 2021-Apr-05 at 16:18

In every loop iteration, you very specifically erase your previous list, and replace it with two copies of the current data. I'll focus on only one variable:

Source https://stackoverflow.com/questions/66955712

QUESTION

MySQL: Invalid use of group function updating two columns with update/select

Asked 2021-Apr-02 at 20:37

I am trying to update two columns within a table from a select statment in MySQL 5.7. The error I get is "invalid use of group function"

Stmt:

...

ANSWER

Answered 2021-Apr-02 at 20:37

You must aggregate first in reviews and then join to catalog:

Source https://stackoverflow.com/questions/66924865

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Vulnerabilities

No vulnerabilities reported

Install mpc

You can download it from GitHub.

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