kinematics | Arduino Kinematics library for differential drive

 by   linorobot C++ Version: Current License: No License

kandi X-RAY | kinematics Summary

kandi X-RAY | kinematics Summary

kinematics is a C++ library typically used in Internet of Things (IoT), Arduino applications. kinematics has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Arduino Kinematics library for differential drive(2WD, 4WD) and mecanum drive robots.
Support
    Quality
      Security
        License
          Reuse

            kandi-support Support

              kinematics has a low active ecosystem.
              It has 34 star(s) with 22 fork(s). There are 6 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              kinematics has no issues reported. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of kinematics is current.

            kandi-Quality Quality

              kinematics has 0 bugs and 0 code smells.

            kandi-Security Security

              kinematics has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              kinematics code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              kinematics does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              kinematics 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.

            Top functions reviewed by kandi - BETA

            kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of kinematics
            Get all kandi verified functions for this library.

            kinematics Key Features

            No Key Features are available at this moment for kinematics.

            kinematics Examples and Code Snippets

            No Code Snippets are available at this moment for kinematics.

            Community Discussions

            QUESTION

            Object Reference Not Set... Arm Chain Generator Not Working
            Asked 2022-Feb-17 at 17:03

            So this one is a bit convoluted.

            It started off with trying to learn kinematics for procedural animation. Then I went on a tangent about generating thicker lines. Now I'm trying to produce a program that generates a chain of inter-connected lines made out of DrawSpheres with variable length/angle/resolution.

            I had the original single line functioning perfectly. But I can not get the program to generate more. Each line is generated at the end target of the previous line, but there seems to be no starting object to reference. What do I change?

            The individual line code:

            ...

            ANSWER

            Answered 2022-Feb-11 at 21:58

            QUESTION

            RealityKit – How to add motion to a loaded ModelEntity from USDZ file?
            Asked 2022-Jan-29 at 09:50

            I have successfully loaded an USDZ file to my scene. Now I want to add motion the ModelEntity. I have added PhysicsMotionComponent but it is not working. After Loading model it is static as usual. No movement. How to give an entity motion in RealityKit?

            When I see the components I see that components are added. But The entity in not moving. What am I doing wrong?

            My codes:

            ...

            ANSWER

            Answered 2022-Jan-29 at 09:50

            Add to your code .generateCollisionShapes(recursive:) instance method for every participant (entity) that not only creates collision's shapes but also allows you to simulate physics.

            Source https://stackoverflow.com/questions/70890755

            QUESTION

            Need to multiply 3*3 matrixes in symbolic form in Python
            Asked 2022-Jan-19 at 06:17

            I need to matrix multiplication in symbolic form. I use this to determine inverse kinematics of a robot arm. So matrixes have trigonometric function and I need to multiply those matrixes as the symbolic view. Any tips or reference is highly appreciate.

            ...

            ANSWER

            Answered 2022-Jan-19 at 06:17

            QUESTION

            Clicking on anchor links only works sometimes
            Asked 2021-Nov-17 at 16:16

            I have added drop down menus to my website, but am running into a problem where my links do not always work when clicked. Sometimes clicking a link just makes the drop down menu disappear, but if you keep trying eventually it will take you to where you are trying to go.

            I originally suspected it had something to do with the transition duration, but playing around with the transitions/waiting for the transitions to complete before clicking does not appear to change anything.

            Here is the html block for the drop down menu navbar

            ...

            ANSWER

            Answered 2021-Nov-17 at 16:16

            Here are two things you might want to do to fix the problem.

            1. Style your a tag so it takes full width/height (easier to click)
            2. Change pointer-events: all to pointer-events: auto, since all is only for SVG (See: https://developer.mozilla.org/en-US/docs/Web/CSS/pointer-events).

            Source https://stackoverflow.com/questions/70007376

            QUESTION

            How to set SolverId when setting verbosity in IK solver options in Drake toolbox?
            Asked 2021-Oct-15 at 16:52
             drake::solvers::SolverOptions options;
                options.SetOption(drake::solvers::**?**, "verbose", {0, 1});   //{0,1} for verbose, {0,0} for no verbosity
                const auto result = Solve(ik.prog(), {}, options);
                const auto q_sol = result.GetSolution(ik.q());
            
            ...

            ANSWER

            Answered 2021-Oct-15 at 16:52

            You have two options here:

            1. Set the option for the specific solver you use. You can know which solver is invoked by checking the result

            Source https://stackoverflow.com/questions/69587803

            QUESTION

            How to locate a urdf file using parser.AddModelFromFile(full_name); in Drake
            Asked 2021-Oct-08 at 16:39
            #include "drake/geometry/scene_graph.h"
            #include "drake/multibody/parsing/parser.h"
            #include "drake/common/find_resource.h"
            
            int main(void) {
            // Building a floating-base plant
                drake::multibody::MultibodyPlant plant_{0.0};
                drake::geometry::SceneGraph scene_graph;
                std::string full_name = drake::FindResourceOrThrow(
                    "model/model.urdf");
                drake::multibody::Parser parser(&plant_, &scene_graph);
                parser.AddModelFromFile(full_name);
                plant_.Finalize();
                return 1;
            }
            
            ...

            ANSWER

            Answered 2021-Oct-08 at 16:39

            I think you have a very easy problem to resolve. You're currently using drake::FindResourceOrThrow(). If you look at its documentation, you'll note:

            The resource_path refers to the relative path within the Drake source repository, prepended with drake/.

            You have a urdf in an arbitrary location. In that case, just pass a filesystem path without calling FindResource() (or any of its variants). Whether it is an absolute or relative path will depend on where your executable ends up w.r.t. the urdf in your built/installed system.

            Source https://stackoverflow.com/questions/69498883

            QUESTION

            How to improve the trajectory optimization results
            Asked 2021-Aug-08 at 17:25

            I want to do trajectory optimization with the Atlas robot model in Drake. Fallow the litterdog example and this repository, I tried the jump motion optimization here. Basically, I changed the in_stance sequence, added Initial guess of q, and added a different q_cost.

            But it seems hard to get the optimal solution, the SNOPT output is:

            ...

            ANSWER

            Answered 2021-Aug-08 at 17:25
            1. Better initial guess helps a lot. You can try to first solve a kinematic trajectory (without considering the forces), and then initialize your trajectory optimization variables with the kinematic trajectory.
            2. When the optimization is infeasible, you can check which constraints are violated at the infeasible solution. Using function result.GetInfeasibleConstraints(prog), it returns the list of violated constraints, and then you can try to relax/remove the constraints. You can call prog.RemoveConstraint() function to remove a constraint, or relaxing the constraint bounds by using constraint.UpdateLowerBound(), constraint.UpdateUpperBound().

            For Atlas jumping motion, we do have a Matlab implementation. If you check out the old matlab version of Drake, then in the folder drake/matlab/solvers/trajectoryOptimization/dev/testJump.m, it implements trajectory optimization for Atlas jumping up motion, using the idea in this paper

            In testJump.m, I didn't use a kinematic trajectory as initial guess. I computed a initial posture of the robot standing on the ground, with contact forces uniformly distributed on each leg.

            There are other nuances in testJump.m:

            1. I scaled the decision variables for the contact forces by mass * g. So the decision variable value for the contact force is roughly in the order of 1. In the currently version of Drake, you can try SetVariableScaling() method in MathematicalProgram.
            2. In testJump.m, the orientation of the floating base was represented by the Euler angles. In the current version of Drake, the floating base orientation is represented by unit quaternions. The time integration of the quaternion is a lot trickier than Euler angles. You can try QuaternionEulerIntegrationConstraint for the unit quaternion, and the rest of the joints can use Euler/Midpoint integration as usual.

            Source https://stackoverflow.com/questions/68698187

            QUESTION

            convert dataframe with to hierarchical dictionary in python
            Asked 2021-Jul-02 at 10:17

            I have dataframe with hierarchical structure:

            ...

            ANSWER

            Answered 2021-Jul-02 at 10:17

            QUESTION

            nvcc Intermediate Link failure
            Asked 2021-May-09 at 18:46

            I've been struggling to fix an intermediate linking error that I get when using CMake to build my nvcc project. I've been upgrading a previous project to utilize CUDA and was able to successfully call functions from that library from host code. When I try to call functions of that library from device code, I get the intermediate linking error. I annotated all of the functions with __device__ and __host__ descriptors.

            As a side note, this is a ROS project, so I'm using some of the catkin CMake functions.

            This is a snippet from the ParticleFilter code that calls the host and device functions:

            ...

            ANSWER

            Answered 2021-May-08 at 04:22

            Here's the key issue and the part that will be most helpful to other readers of this question. Catkin configures CMake to build shared libraries by default but CUDA separable compilation and nvlink only work with static libraries. You need to set your CUDA libraries (in your case, those in cwru_davinci_kinematics) to be static, always. You can do that by adding the STATIC keyword to the add_library call, as in:

            Source https://stackoverflow.com/questions/67269257

            QUESTION

            HTML/CSS dropdown menu hiding other dropdown menu
            Asked 2021-Apr-05 at 11:21

            this is my website that I am developing, and I trying to develop a calculator which depending on the subject and equation your are trying to use, the calculator will give you an answer.

            I made two dropdown menus, however, when I hover over the "Physics" menu, for some reason the "Maths" menu is covered. Also, the list for "Physics" is a bit too long and I wanted to make a scroll bar, but I don't know how to.

            I tried to look on w3schools and other resources, but I couldn't find a solutions which solved my problem.

            ...

            ANSWER

            Answered 2021-Apr-05 at 11:21

            You had a lot of errors in the code. Like in li, you gave css as display: inline;; and the sub-menu you didn't give any positions like position: absolute;

            I have applied my changes below.

            Thanks me later.

            Source https://stackoverflow.com/questions/66951809

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install kinematics

            You can download it from GitHub.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
            Find more information at:

            Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items

            Find more libraries
            CLONE
          • HTTPS

            https://github.com/linorobot/kinematics.git

          • CLI

            gh repo clone linorobot/kinematics

          • sshUrl

            git@github.com:linorobot/kinematics.git

          • Stay Updated

            Subscribe to our newsletter for trending solutions and developer bootcamps

            Agree to Sign up and Terms & Conditions

            Share this Page

            share link