n-body | N-body simulation with GUI

 by   zer011b Python Version: Current License: No License

kandi X-RAY | n-body Summary

kandi X-RAY | n-body Summary

n-body is a Python library. n-body has no bugs, it has no vulnerabilities and it has low support. However n-body build file is not available. You can download it from GitHub.

N-body simulation with GUI
Support
    Quality
      Security
        License
          Reuse

            kandi-support Support

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

            kandi-Quality Quality

              n-body has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              n-body 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

              n-body releases are not available. You will need to build from source code and install.
              n-body has no build file. You will be need to create the build yourself to build the component from source.
              Installation instructions are not available. Examples and code snippets are available.
              It has 331 lines of code, 22 functions and 1 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed n-body and discovered the below as its top functions. This is intended to give you an instant insight into n-body implemented functionality, and help decide if they suit your requirements.
            • initialize the UI
            • Draw lines to qp
            • Called when button clicks .
            • Calculate the area .
            • Initialize the dictionary .
            • Initialize global variables
            Get all kandi verified functions for this library.

            n-body Key Features

            No Key Features are available at this moment for n-body.

            n-body Examples and Code Snippets

            No Code Snippets are available at this moment for n-body.

            Community Discussions

            QUESTION

            Vanilla JS remove a specific class from all elements that hold it
            Asked 2022-Mar-12 at 12:49

            ...

            ANSWER

            Answered 2022-Mar-11 at 23:15

            You need to keep track of what your last opened accordion was so that you can remove the no-rounded-bottom class from it when you open another element. So you can have something like this in your JS:

            Source https://stackoverflow.com/questions/71444977

            QUESTION

            Office-JS API with Fetch to get data from server, replace fields in Word
            Asked 2022-Mar-09 at 23:02

            I am new to the Office-JS API, but trying to develop a POC to demonstrate the ability to, with the click of a button, replace all fields in a Word document with corresponding data retrieved from an API.

            So I have developed an API as an Azure Function, which I can call, passing a value, and it will return the field names and values as JSON for the record that matches the passed value. I have tested this already using Postman.

            Now I am trying to get the Office-JS piece working. I started with the VS-2022 template.

            My intended approach is that when the user clicks the button, the application will call the API and obtain the record (data) fields as a set of name/value pairs.

            Then, I want loop through all of the (data) fields returned, and for each (data) field name, check to see if there is a (document) field in the document by that name; if so, replace the (document) field with the (data) field's value.

            In the end, I realize it would likely be more efficient to loop the other way (loop through the doc fields, and then get the (data) field's value, etc.), but I figure I can tweak this once I get it working.

            I also realize it's bad practice to perform a context.sync() within a loop, but again - I can clean that up once I get it working.

            Right now, my code is reporting "Error: InvalidRequestContext: Cannot use the object across different request contexts."

            My code follows:

            ...

            ANSWER

            Answered 2022-Mar-09 at 23:02

            This is another common symptom of nested calls of context.sync. Fix the nesting first. Also, performance is better when you push filtering logic as close to the data source as possible. Consider designing the Azure Function to take in a list of fields and send back only data for matching names. Then your client side code is greatly simplified because you can assume there is a matching field for every data record that is returned.

            Source https://stackoverflow.com/questions/71414777

            QUESTION

            Strongly type a recursively nested proxy
            Asked 2022-Mar-08 at 16:52

            I have some objects that I store content for some UI. They look like this:

            ...

            ANSWER

            Answered 2022-Mar-08 at 16:52

            You can use a mapped type to emulate what you are doing in the function code

            Source https://stackoverflow.com/questions/71393416

            QUESTION

            Webpack not including all dependencies on deploying serveless application
            Asked 2022-Feb-23 at 22:18

            Am getting an error when I am deploying serverless lambda function on AWS

            ...

            ANSWER

            Answered 2022-Feb-23 at 22:18

            Full credit to this blog post

            You are developing a NodeJS + Webpack + Sequelize + pg + pg-hstore application. You compile everything and when you execute your webpack bundle, you have the following error

            Source https://stackoverflow.com/questions/68964188

            QUESTION

            Fullcalendar how to add bottom border to calendar view except grid axis?
            Asked 2022-Feb-23 at 16:11

            Greetings I have problem. How get rid of border-bottom on calendar view(see image 1)? This appears if using this css.

            ...

            ANSWER

            Answered 2022-Feb-23 at 16:11

            I found solution for dayGrid and WeekGrid not for month yet.

            Source https://stackoverflow.com/questions/71236453

            QUESTION

            XSL-FO/Apache FOP: How to keep a word together when hyphenation is enabled
            Asked 2022-Feb-15 at 17:17

            The task is very simple: to prevent "donothyphenatethisextremelylongword" from getting hyphenated inside a block where hyphenate="true". What I tried:

            ...

            ANSWER

            Answered 2021-Aug-04 at 09:21

            FWIW, your sample works fine in AH Formatter. So does wrapping the word in an fo:inline-container with an fo:block that has the hyphenate="false", but FOP 2.6 then puts the word on a separate line (because, I think, the width isn't specified).

            The only thing that I've found that works with FOP 2.6 is to turn every character in the fo:inline into an fo:character; i.e., , etc.

            Alternatively, you can drop the fo:inline and repeat the hyphenate on every fo:character: , etc.

            You can drop the keep-together="always". I haven't seen it have any effect.

            Making your own fo:character shouldn't be necessary. Section 1.1.2, Formatting, of the XSL 1.1 Recommendation includes (just after the graphic):

            As part of the step of objectifying, the characters that occur in the result tree are replaced by fo:character nodes.

            I don't know that any formatter would do that in practice because it would explode the number of objects with (usually) no good effect, but the formatter should behave as if the inherited properties that apply to fo:character apply to every character in a run of text.

            Source https://stackoverflow.com/questions/68646949

            QUESTION

            Bootstrap collapse all accordions on button click
            Asked 2022-Jan-04 at 11:19

            Is there a way to collapse/expand all accordions with a button click? I tried it with a simple button that removeClass active and addClass active but it did not work at all. I can only open them all up at once but not collapse again and then open up again.

            my current button :

            ...

            ANSWER

            Answered 2022-Jan-04 at 11:19

            I did it by myself with this code

            Source https://stackoverflow.com/questions/70577136

            QUESTION

            Android Huawei image segmentation not working on release build
            Asked 2021-Dec-27 at 09:39

            I'm using Huawei image segmentation for background removal from images. This code work perfectly fine on debug build but it does not work on a release build. I don't understand what could be the case.

            Code:

            ...

            ANSWER

            Answered 2021-Dec-27 at 08:50

            Stuff like this usually happens when you have ProGuard enabled but not correctly configured. Make sure to add appropriate rules to proguard-rules.pro file to prevent it from obfuscating relevant classes.

            Information about this is usually provided by the library developers. After a quick search I came up with this example. Sources seem to be documented well enough, so that it should not be a problem to find the correct settings.

            Keep in mind that you probably need to add rules for more than one library.

            Source https://stackoverflow.com/questions/70492455

            QUESTION

            How to index nearby 3D points on the fly?
            Asked 2021-Nov-30 at 02:43

            In physics simulations (for example n-body systems) it is sometimes necessary to keep track of which particles (points in 3D space) are close enough to interact (within some cutoff distance d) in some kind of index. However, particles can move around, so it is necessary to update the index, ideally on the fly without recomputing it entirely. Also, for efficiency in calculating interactions it is necessary to keep the list of interacting particles in the form of tiles: a tile is a fixed size array (eg 32x32) where the rows and columns are particles, and almost every row-particle is close enough to interact with almost every column particle (and the array keeps track of which ones actually do interact).

            What algorithms may be used to do this?

            Here is a more detailed description of the problem:

            1. Initial construction: Given a list of points in 3D space (on the order of a few thousand to a few million, stored as array of floats), produce a list of tiles of a fixed size (NxN), where each tile has two lists of points (N row points and N column points), and a boolean array NxN which describes whether the interaction between each row and column particle should be calculated, and for which:

              a. every pair of points p1,p2 for which distance(p1,p2) < d is found in at least one tile and marked as being calculated (no missing interactions), and

              b. if any pair of points is in more than one tile, it is only marked as being calculated in the boolean array in at most one tile (no duplicates),

              and also the number of tiles is relatively small if possible (but this is less important than being able to update the tiles efficiently)

            2. Update step: If the positions of the points change slightly (by much less than d), update the list of tiles in the fastest way possible so that they still meet the same conditions a and b (this step is repeated many times)

            It is okay to keep any necessary data structures that help with this, for example the bounding boxes of each tile, or a spatial index like a quadtree. It is probably too slow to calculate all particle pairwise distances for every update step (and in any case we only care about particles which are close, so we can skip most possible pairs of distances just by sorting along a single dimension for example). Also it is probably too slow to keep a full (quadtree or similar) index of all particle positions. On the other hand is perfectly fine to construct the tiles on a regular grid of some kind. The density of particles per unit volume in 3D space is roughly constant, so the tiles can probably be built from (essentially) fixed size bounding boxes.

            To give an example of the typical scale/properties of this kind of problem, suppose there is 1 million particles, which are arranged as a random packing of spheres of diameter 1 unit into a cube with of size roughly 100x100x100. Suppose the cutoff distance is 5 units, so typically each particle would be interacting with (2*5)**3 or ~1000 other particles or so. The tile size is 32x32. There are roughly 1e+9 interacting pairs of particles, so the minimum possible number of tiles is ~1e+6. Now assume each time the positions change, the particles move a distance around 0.0001 unit in a random direction, but always in a way such that they are at least 1 unit away from any other particle and the typical density of particles per unit volume stays the same. There would typically be many millions of position update steps like that. The number of newly created pairs of interactions per step due to the movement is (back of the envelope) (10**2 * 6 * 0.0001 / 10**3) * 1e+9 = 60000, so one update step can be handled in principle by marking 60000 particles as non-interacting in their original tiles, and adding at most 60000 new tiles (mostly empty - one per pair of newly interacting particles). This would rapidly get to a point where most tiles are empty, so it is definitely necessary to combine/merge tiles somehow pretty often - but how to do it without a full rebuild of the tile list?

            P.S. It is probably useful to describe how this differs from the typical spatial index (eg octrees) scenario: a. we only care about grouping close by points together into tiles, not looking up which points are in an arbitrary bounding box or which points are closest to a query point - a bit closer to clustering that querying and b. the density of points in space is pretty constant and c. the index has to be updated very often, but most moves are tiny

            ...

            ANSWER

            Answered 2021-Nov-27 at 13:46

            I suggest the following algorithm. E.g we have cube 1x1x1 and the cutoff distance is 0.001

            1. Let's choose three base anchor points: (0,0,0) (0,1,0) (1,0,0)
            2. Associate array of size 1000 ( 1 / 0.001) with each anchor point
            3. Add three numbers into each regular point. We will store the distance between the given point and each anchor point inside these fields
            4. At the same time this distance will be used as an index in an array inside the anchor point. E.g. 0.4324 means index 432.
            5. Let's store the set of points inside of each three arrays
            6. Calculate distance between the regular point and each anchor point every time when update point
            7. Move point between sets in arrays during the update

            The given structures will give you an easy way to find all closer points: it is the intersection between three sets. And we choose these sets based on the distance between point and anchor points.

            In short, it is the intersection between three spheres. Maybe you need to apply additional filtering for the result if you want to erase the corners of this intersection.

            Source https://stackoverflow.com/questions/70026017

            QUESTION

            What XSLT:FO layout should I use for my multi-page iterative PDF converter?
            Asked 2021-Nov-15 at 20:29

            I am using Apache's XML Graphics FOP 2.6 to create a PDF document containing at least 2 pages. There is no maximum number of pages.

            The exact same header is used on every page.

            Page 1 (see attached)

            Needs to contain text with the total number of boxes, the total number of items included in the total number of boxes and a table with 1, 2 or 3 rows. On each row, there is a photo of the box, its name and the number of items it contains. There will be at least one box containing at least one item.

            Page 2

            Exists only if there are 4 or more boxes and it contains rows 4, 5, 6, 7, 8 and 9 (6 rows in total) of the table from Page 1. If there are more than 9 (= 3 + 6 X 1) boxes, there needs to be a new page that will contain the layout from Page 2, but containing the rows for boxes 10, ..., 15. This pattern will be followed until the last box.

            Page 3

            Will contain the photo, name and number of items of the first box. Underneath there will be a table, with a row containing the column names and at most 4 rows, corresponding to the first 4 items from the first box.

            Page 4

            If the first box has more than 4 items, there will be new page, called Page 4, containing only the continuation of the table, including the row with the column names. It will have 7 items in total and be followed by another page if the first box has more than 11 (= 4 + 7 X 1) items. And so on until the end of all items.

            Page 5 (not attached to avoid repetition)

            Will follow the same logic as Page 3, but in this case for the second box, if there is a second box. And so on until the end of all boxes.

            Can anyone, please help me with an idea on how to build the layout-master-set in the XSL file for my requirements? I am not looking for the entire solution. Only for the general layout structure. The answer does not have to be too detailed or too bespoke for my needs. I can adapt it if needed.

            ...

            ANSWER

            Answered 2021-Nov-04 at 12:01

            Use fo:table, and for each fo:table-row specify height (https://www.w3.org/TR/xsl11/#height) with a suitable value that will get you the required number of rows per page.

            You may also need to specify keep-together.within-page="always" to avoid breaking a table row. FOP may or may not support that on fo:table-row (or fo:table-cell).

            Source https://stackoverflow.com/questions/69838428

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

            Vulnerabilities

            No vulnerabilities reported

            Install n-body

            You can download it from GitHub.
            You can use n-body like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

            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/zer011b/n-body.git

          • CLI

            gh repo clone zer011b/n-body

          • sshUrl

            git@github.com:zer011b/n-body.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