Graham-Scan | repository containing a C implementation | Learning library

by jwlodek C Version: Current License: MIT

X-Ray Key Features Code Snippets(2)Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | Graham-Scan Summary

Graham-Scan is a C library typically used in Tutorial, Learning, Example Codes applications. Graham-Scan has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

C implementation of the Graham Scan convex hull algorithm. I chose to write the implementations in C because of its execution speed, my familiarity with the language, and because I enjoy coding in it. I also wished to learn a C/C++ unit testing framework, as I have had only minimal exposure to such libraries in the past. I settled on using the Criterion library found here:

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Support

Graham-Scan has a low active ecosystem.

It has 7 star(s) with 1 fork(s). There are 1 watchers for this library.

It had no major release in the last 6 months.

Graham-Scan has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of Graham-Scan is current.

Quality

Graham-Scan has 0 bugs and 0 code smells.

Security

Graham-Scan has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

Graham-Scan code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

Graham-Scan is licensed under the MIT License. This license is Permissive.

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

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Graham-Scan 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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Graham-Scan Key Features

No Key Features are available at this moment for Graham-Scan.

Graham-Scan Examples and Code Snippets

Grammarize a set of points .

python

Lines of Code : 155

License : Permissive (MIT License)

Copy

def graham_scan(points: list[tuple[int, int]]) -> list[tuple[int, int]]:
    """Pure implementation of graham scan algorithm in Python

    :param points: The unique points on coordinates.
    :return: The points on convex hell.

    Examples:

Sort by two points

javascript

Lines of Code : 6

License : Non-SPDX (GNU General Public License v3.0)

Copy

function compare (a, b) {
  // Compare Function to Sort the points, a and b are points to compare
  if (a.x < b.x) return -1
  if (a.x === b.x && a.y < b.y) return -1
  return 1
}

Community Discussions

Trending Discussions on Graham-Scan

Pdfkit OSError: No wkhtmltopdf executable found

Unpacking a lambda function I found to understand what it is doing python

Graham Scan Convex Hull appending too many vertices

QUESTION

Pdfkit OSError: No wkhtmltopdf executable found

Asked 2019-Nov-20 at 04:15

I'm trying to convert a webpage to PDF, using pdfkit but it shows following error

...

ANSWER

Answered 2017-Feb-23 at 16:13

Your config path contains an ASCII Backspace, the \b in \bin, which pdfkit appears to be stripping out and converting C:\Program Files\wkhtmltopdf\bin\wkhtmltopdf.exe to C:\Program Files\wkhtmltopdf\wkhtmltopdf.exe.

This can be resolved by using r, which makes it a raw literal

Source https://stackoverflow.com/questions/42420570

QUESTION

Unpacking a lambda function I found to understand what it is doing python

Asked 2018-Oct-03 at 01:24

I am implementing the first half of the Grahm Scan convex hull algorithm to find a noncomplex polygon from my list of points.

My code is currently

...

ANSWER

Answered 2018-Oct-03 at 01:24

Python's sort method will first sort based on slope(p, start) then on -p[1] and then on p[0] (for tie-breaking). To be more specific to your query, p[1] is the y-coordinate, and -p[1] will sort based on the descending order of the y-coordinates. Similarly, p[0] is the x-coordinate, and so the sorting will be performed on the ascending order of the x-coordinates. Hope that helps.

Source https://stackoverflow.com/questions/52618261

QUESTION

Graham Scan Convex Hull appending too many vertices

Asked 2017-May-29 at 05:37

As above I am trying to implement a Graham Scan Convex Hull algorithm but I am having trouble with the stack appending too many vertices. The points are read from a .dat file here

For reading points my function is as follows:

...

ANSWER

Answered 2017-May-29 at 05:19

Angle sorting should be made against some extremal reference point (for example, the most bottom and left), that is undoubtedly included in convex hull. But your implementation uses the first point of list as reference.

Wiki excerpt:

swap points[1] with the point with the lowest y-coordinate

Source https://stackoverflow.com/questions/44234518

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

Vulnerabilities

No vulnerabilities reported

Install Graham-Scan

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 .

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