revolve | Robot evolution framework for the Triangle of Life project
kandi X-RAY | revolve Summary
kandi X-RAY | revolve Summary
Revolve is an open source software framework for robot evolution providing C++ and Python libraries to create, simulate and manage robots in the Gazebo general-purpose robot simulator. Given a specification, a robot body can be constructed by Revolve from a tree structure, starting with a root node extending to other body parts through its attachment slots. Revolve also ships with some simple generator classes, which can generate arbitrary robot bodies from scratch given a set of constraints. Revolve was originally developed and is maintained by researchers and engineers working at the Computational Intelligence Group within Vrije Universiteit Amsterdam for the purposes of conducting robot body and brain evolutionary-related research. The system is general enough to be applicable in a wide variety of other domains, as well.
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Top functions reviewed by kandi - BETA
- Start T5
- Read count bytes from the server
- Send a pigpio command
- Read data from the pin
- Send an i2c command
- Interrupt a given bscio control
- Send a sigpio command
- Compute the wave chain and filter test
- Set glitch filter
- Tensorboard
- Decomposes a matrix
- Default NeuralNet implementation
- Combine binary data
- Open a SPI pipe
- Convert robot to SDF
- Calculate the projection of a rotation matrix
- Perform a BSPI request
- Tests the duty cycle
- Builds a sDF robot
- Send i2c zipped zipped data
- The hardware PWM command
- Builds the network
- Test a GPIO pin
- Test for the device
- Runs the experiment
- Open a file
revolve Key Features
revolve Examples and Code Snippets
Lines of Code : 100
License : No License
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class Planet {
void revolve() {
System.out.println("Revolve");
}
public static void main(String[] args) {
Planet earth = new Planet();
earth.revolve();
}
}
class Planet {
void revolve() {
System.out.println("Revolve")
jshell> class Planet {
...> void revolve() {
...> System.out.println("Revolve");
...> }
...> }
replaced class Planet
update replaced variable planet, reset to null
update replaced variable earth, reset to null
up Community Discussions
Trending Discussions on revolve
QUESTION
unsigned short upper limit is 65535 and more than this number revolve to start with 0;
...ANSWER
Answered 2021-Jun-13 at 12:29- Use the correct format specifier if you want to print unsigned values:
QUESTION
I am new to async and parallel programming and my question revolves around attempting to run a method that takes a couple parameters, and then execute that method in parallel. I need to run this in parallel because the method being called is updating PLC's on my factory floor. If it is down synchrounsly, this process can take nearly 10 minutes because of how many there are. I am able to get the method to run once, using the last PLC in my custom class, but won't run for the other PLC's in my list. Sample code below:
...ANSWER
Answered 2021-Jun-10 at 19:21The problem is probably that your code does not wait for the completion of the tasks. You can wait for all of them to complete by using the blocking Task.WaitAll method.
QUESTION
I'm making a game using HTML canvas and javascript. My canvas is 1280 x 720 px (16:9 ratio). I want my game to be displayed at full screen, showing black bars if the screen ratio is not 16:9.
If I do this:
...ANSWER
Answered 2021-May-30 at 07:27First as stated in the comments already, canvas is a replaced-level element. As such object-fit can be applied to it just like with images that are used for this demonstration.
The solution starts with a "wrapper" (div.fullscreen). This element is positioned to fill the entire viewport by using: position: fixed; inset: 0; (inset: 0; = top, right, bottom, left: 0 not fully supported yet: https://developer.mozilla.org/en-US/docs/Web/CSS/inset).
Next we address the image within this wrapper (or the canvas in your case) and setting the max-height and max-width to 100%. Then we use object-fit: contain; to let the canvas maintain its aspect-ratio but filling the wrapper without getting cut off.
Last but not least we use display: flex; justify-content: center; align-items: center; to display the canvas in the vertical and horizontal center.
QUESTION
In a large corpus of text, I am interested in extracting every sentence which has a specific list of (Verb-Noun) or (Adjective-Noun) somewhere in the sentence. I have a long list but here is a sample. In my MWE I am trying to extract sentences with "write/wrote/writing/writes" and "book/s". I have around 30 such pairs of words.
Here is what I have tried but it's not catching most of the sentences:
...ANSWER
Answered 2021-May-29 at 08:53The issue is that in the Matcher, by default each dictionary in the pattern corresponds to exactly one token. So your regex doesn't match any number of characters, it matches any one token, which isn't what you want.
To get what you want, you can use the OP value to specify that you want to match any number of tokens. See the operators or quantifiers section in the docs.
However, given your problem, you probably want to actually use the Dependency Matcher instead, so I rewrote your code to use that as well. Try this:
QUESTION
I have a Vue 3 app. I'm using the Composition API as I've read it simplifies state management. As a result, I'm trying to to avoid using VueX. Perhaps, I've run into a scenario that warrants it. I currently have the following component structure in my app...
App
...ANSWER
Answered 2021-May-18 at 19:38You can use Vue.js event bus. Essentially, an event bus is a Vue.js instance that can emit events in one component, and then listen and react to the emitted event in another component directly — without the help of a parent component.
Here is reference link that can help you . 1https://blog.logrocket.com/using-event-bus-in-vue-js-to-pass-data-between-components/
QUESTION
This setup is extremely specific but I couldn't find any similar resources online so I'm posting here in case it helps anyone.
There are many questions about Jest and Async callback was not invoked, but I haven't found any questions whose root issue revolves around the use of jest.useFakeTimers(). My function should take no time to execute when using fake timers, but for some reason Jest is hanging.
I'm using Jest 26 so I'm manually specifying to use modern timers.
This is a complete code snippet that demonstrates the issue.
...ANSWER
Answered 2021-May-10 at 18:01My issue ended up being in my jest configuration.
We execute tests directly against an in-memory DB, and to keep our tests clean we wrap each test in a DB transaction. Jest doesn't provide a native aroundEach hook like many other test runners, so we achieved this by monkey-patching the global test and it functions so we could execute the test callback inside a transaction. Not sure if it matters but to be explicit we are using Sequelize as our ORM and for transactions.
The test I was executing (as seen above) recursively called setTimeout with a function which threw an error / rejected a Promise. Sequelize transactions apparently do not appreciate unhandled rejections, and it was causing the test to hang. I never was able to get to the root of why the test was hanging; the transaction successfully rolled back and all test expectations were run, but for some reason the test never exited.
My first solution is not pretty but it is pragmatic. I simply extended the Jest test function with a variant which does not use the monkey-patched test.
QUESTION
As far as I know, all the techniques mentioned in the title are rendering algorithms that seem quite similar. All ray based techniques seem to revolve about casting rays through each pixel of an image which are supposed to represent rays of real light. This allows to render very realistic images.
As a matter of fact I am making a simple program that renders such images myself based on Raytracing in one Weekend.
Now the thing is that I wanted to somehow name this program. I used the term “ray tracer” as this is the one used in the book.
I have heard a lot of different terms however and I would be interested to know what exactly is the difference between ray tracing, ray matching, ray casting, path tracing and potentially any other common ray-related algorithms. I was able to find some comparisons of these techniques online, but they all compared only two of these and some definitions overlapped, so I wanted to ask this question about all four techniques.
...ANSWER
Answered 2021-May-02 at 08:31My understanding of this is:
ray cast
is using raster image to hold the scene and usually stop on first hit (no reflections and ray splitting) and does not necessarily cast ray on per pixel basis (usually per row or column of screen). The 3D version of this is called Voxel space ray cast however the map is not voxel space instead 2 raster images
RGB,Heightare used.For more info see:
(back) ray trace
This usually follows physical properties of light so ray split in reflected and refracted and we stop usually after some number of hits. The scene is represented either with BR meshes or with Analytical equations or both.
for more info see:
the
backmeans we cast the rays from camera to scene (on per pixel basis) instead of from light source to everywhere ... to speed up the process a lot at the cost of wrong lighting (but that can be remedied with additional methods on top of this)...
The other therms I am not so sure as I do not use those techniques (at least knowingly):
path tracing
is optimization technique to avoid recursive ray split in ray trace using Monte Carlo (stochastic) approach. So it really does not split the ray but chose randomly between the 2 options (similarly how photons behave in real world) and more rendered frames are then blended together.
ray marching
is optimization technique to speed up ray trace by using SDF (signed distance function) to determine safe advance along the ray so it does not hit anything. But it is confined only to analytical scene.
QUESTION
I am currently trying to implement a banner-like view where given a list of strings, the view will cyclically show each string one after the other with a pause when they arrive in the center of the screen. An example of what I want to do is the following
In HTML, this element is a swiper slide from swiperjs, however, Android has no native element that does this simply.
I have looked online for a couple of days now, testing various implementations using a custom RecyclerView, simple TextView with marquee (which doesn't have the pause I want to add) and have found that the majority of "solutions" revolve around either a RecyclerView, a ListView or a ViewPager with usually a TimerTask to handle the scrolling timing.
Unfortunately, I haven't found any implementation that works nor any indication as to which view is best to use.
All solutions implement an image and a dot selector showing which image from the list is shown on screen but I have absolutely no desire to have an image, I simply want a TextView with the same functionality. Before anyone asks, yes I have tried to simply replace the Images with a TextView but it simply doesn't work.
One important aspect to note is that since I am only trying to make some text scroll into view, I don't think ViewPager is an effective solution since I am not at all implementing some scrolling fragments. Here is a layout of how the screen elements are disposed (Note this is the MainActivity screen and I have a fragment host within it for all other fragments):
...ANSWER
Answered 2021-Apr-29 at 09:50I did it using LoopingViewPager like this.
Step 1: add dependancy in your app gradle
QUESTION
I'm having troubling installing the pg gem on Windows 10.
I've looked around and was able to progress with the first set of errors, but now am stuck with the error shown below.
Most answers I found all are for Linux and OSX and usually revolve around installing libpq-dev,which I'm not able to find for Windows. Given that I've moved past the initial missing libpq-fe.h error, I'm assuming that the required dev files are already included in the Windows installer.
I've tried specifying the folder/lib locations several ways, including:
gem install pg -v '1.1' -- --with-pg-dir="C:\Program Files\PostgreSQL\13" --with-pq-dir="C:\Program Files\PostgreSQL\13"
and
gem install pg -v '1.1' -- --with-pg-config="C:\Program Files\PostgreSQL\13\bin\pg_config.exe"
But neither seem to work. Any suggestions?
Additional info:
Console output
...ANSWER
Answered 2021-Apr-25 at 22:39The issue was apparently being caused because I was using the 32 bit version of Ruby. Installed the 64 bit and the issue was resolved.
QUESTION
Accepting suggestions for a better title, in lieu of that I am outlining my exact use case
I am writing a library that allows for the remote execution of methods and accessing of properties behind a serialised boundary such as a Web Worker.
The general flow revolves around traversing the shape of your source object, function, array through a property/value "handle" expressed as an IHandle interface.
ANSWER
Answered 2021-Apr-25 at 00:36I don't know if I 100% understand your use case, especially when it comes to what to do with the return type of the callback... for now I'm going to assume it stays the same. Furthermore, I'm confused that IHandle gets an exec() method even when T is not function-like. That is, I really don't know what you plan to do if someone takes an IHandle<{foo: string}> and calls the exec() method, or any of the other edge cases that might occur. Since you're not explicitly asking about that and your example code doesn't test that, I'll consider such issues outside the scope of the question in what follows.
My approach here would be to write a type alias HandlifyParams that leaves a non-callback type T alone, but turns a callback type T into a new callback type whose parameters are each wrapped in IHandle<>, and whose return type is left alone (again, not sure if that's what you want):
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