line-segments-intersect | See if two line segments

by pgkelley4 JavaScript Version: v1.1.0 License: MIT

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kandi X-RAY | line-segments-intersect Summary

line-segments-intersect is a JavaScript library typically used in Big Data applications. line-segments-intersect has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

See if two line segments intersect or not. This uses the vector cross product approach described here: This derives its algorithm from: "Intersection of two lines in three-space" by Ronald Goldman. I have included the unit tests I put together in the index html as an example.

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line-segments-intersect has a low active ecosystem.

It has 46 star(s) with 13 fork(s). There are 2 watchers for this library.

It had no major release in the last 12 months.

There are 0 open issues and 1 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of line-segments-intersect is v1.1.0

Quality

line-segments-intersect has 0 bugs and 0 code smells.

Security

line-segments-intersect has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

line-segments-intersect code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

line-segments-intersect 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

line-segments-intersect releases are available to install and integrate.

line-segments-intersect saves you 71 person hours of effort in developing the same functionality from scratch.

It has 184 lines of code, 0 functions and 5 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

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Community Discussions

Trending Discussions on line-segments-intersect

How do I calculate where do 2 line segments intersect?

Check, if one Line Segment intersects with a set of line segments

QUESTION

How do I calculate where do 2 line segments intersect?

Asked 2019-Oct-29 at 10:38

I've implemented line segment intersection formula from GeeksForGeeks.It works great, but I also need to know the point of intersection of these 2 line segments. How can I modify the code to do that? (C++)

First comes the Point class (just a 2d Vector really)

...

ANSWER

Answered 2019-Oct-29 at 10:38

You just need to implement one of the equations found in this wiki.

In the following code i chose to implement the first equation

Source https://stackoverflow.com/questions/58604841

QUESTION

Check, if one Line Segment intersects with a set of line segments

Asked 2018-Aug-17 at 21:48

I have a a line segment AB (2d) from point A to point B. For the representation of a coastline (closed polygon, 3*10^3 vertices), I have a NumPy array (2d) of points which start and end at the same point. I want to know, if the connection between point A and B intersects the coastline.

My first approach was to iterate over each line segment of the closed polygon and check if it intersects with AB. Here is the underlying method.

Even if I do this working with NumPy arrays or translating the function with cython, it is not fast enough, because I have to do it a lot of times for different As and Bs.

I thought, this may be a conceptual problem and I was wondering, if there is a smarter way to check only, if at least one intersection exists (True/False)?

I tried to use shapely as well. But this was kind of slow.

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ANSWER

Answered 2018-Aug-17 at 21:48

This is a collision detection problem.

So in your case the best is to put your coastline inside one spatial datastrcture such as bsp-tree, quad-tree, aabb-tree, etc.

Then perform intersection between your line segment and the tree-structure.

See for instance CGAL AABB_tree: https://doc.cgal.org/latest/AABB_tree/index.html

That library is for 3D but the same idea works for 2D. You can embedd almost any geometry inside aabbtree and query line intersection very fast

Source https://stackoverflow.com/questions/51897251

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

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Install line-segments-intersect

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