pathfinder | practical GPU rasterizer for fonts and vector graphics | GPU library

by servo Rust Version: preview-3 License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | pathfinder Summary

pathfinder is a Rust library typically used in Hardware, GPU applications. pathfinder has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Pathfinder 3 is a fast, practical, GPU-based rasterizer for fonts and vector graphics using OpenGL 3.0+, OpenGL ES 3.0+, WebGL 2, and Metal. Please note that Pathfinder is under heavy development and is incomplete in various areas.

Support

Quality

Security

License

Reuse

Support

pathfinder has a medium active ecosystem.

It has 3180 star(s) with 177 fork(s). There are 91 watchers for this library.

It had no major release in the last 12 months.

There are 84 open issues and 198 have been closed. On average issues are closed in 98 days. There are 22 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of pathfinder is preview-3

Quality

pathfinder has 0 bugs and 0 code smells.

Security

pathfinder has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

pathfinder code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

pathfinder is licensed under the Apache-2.0 License. This license is Permissive.

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

Reuse

pathfinder releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

It has 785 lines of code, 27 functions and 23 files.

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

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pathfinder Key Features

No Key Features are available at this moment for pathfinder.

pathfinder Examples and Code Snippets

No Code Snippets are available at this moment for pathfinder.

Community Discussions

Trending Discussions on pathfinder

Subtracting SVG paths programmatically

Merging two bezier-based shapes into one to create a new outline

Cant access mineflayer pathfinder inside an object

How to count the number of s3 folders inside given path?

Installing package via vcpkg causing a "opencv2/opencv.hpp: No such file or directory" error

Using @SerializedName with hyphen not working

Get distance between two locations using non-solid blocks with bukkit

Dynamic pathfinder for includes

read file returns null Flutter

Is there a (CSS) filter to cut out the outlines of an image on top of another image?

QUESTION

Subtracting SVG paths programmatically

Asked 2022-Feb-11 at 20:51

I'm trying to find a way to subtract a SVG path from another, similar to an inverse clip mask. I can not use filters because I will need to find the intersection points of the compound path with other paths. Illustrator does this with the 'minus front' pathfinder tool like this:

The path of the red square before subtracting:

...

ANSWER

Answered 2022-Feb-11 at 20:51

This is a nontrivial problem in general.

It can be solved easily (little code) if you can accept rasterizing the shapes to pixels, perform the boolean operation there, and then vectorize back the result using marching squares + simplification.

Known algorithms to compute instead a somewhat exact* geometric result are quite complex and difficult to implement correctly while keeping them fast.

Clipper is an easy to use library to perform this kind of computation in C++, with ports to Javascript.

Please note that what is difficult is to correctly handle edge cases (e.g. when input lines are partially overlapping or vertices fall exactly on a line and when the result includes zero-area parts).

Code that only reasons about cases in which crossings are clear is a lot easier to write, but unfortunately can produce results that are macroscopically wrong when those edge cases do actually happen.

Floating point math is too unpredictable to be used for these computations... see for example https://hal.inria.fr/inria-00344310/document for a detailed discussion of the kind of issues that will be present when using floating point math for exact geometric computation.

Even a "simple" equation like the one that tells if three points are collinear, clock-wise or counter-clokwise behave crazily when computed with floating point math... (images from the paper)

(*) The coordinates of the intersection of two segments with integer coordinates cannot, in general, be represented exactly by double-precision numbers; thus the result will still be an approximation unless you use a numeric library with support for rationals.

Source https://stackoverflow.com/questions/70847082

QUESTION

Merging two bezier-based shapes into one to create a new outline

Asked 2022-Feb-11 at 15:12

Lets say I have the data to render two overlaying bezier-based shapes, that are overlapping, displayed in a svg or on the canvas (doesn't really matter where). I would like to calculate the outline of the shape resulting from the merge of the two shapes, so that I have a clean (new) outline and as few nodes and handles as possible. I would like to achieve the effect that vector programs like adobe illustrator offers with Pathfinder > Add or the font program glyphs with Remove Overlap. Example: https://helpx.adobe.com/illustrator/using/combining-objects.html

Is there possible a library or a concept for that task? I am working with javascript in the browser, but any other source for how to make such a calculation would help as well.

It is also important, that this calculation happens before the rendering an agnostic to the rendered result (be it svg/canvas).

In the illustration bellow, on the left side is the input shape. and on the right side the expected result. I have the data, meaning all the nodes and handles (from the bezier curve) and I would like to calculate the coordinates of the red (nodes) and green dots (handles) on the right side.

...

ANSWER

Answered 2022-Feb-11 at 15:12

Paper.js might be the perfect library for this task:
In particular it's Boolean operations – like unite() to merge path elements. The syntax looks something like this:

Source https://stackoverflow.com/questions/71077189

QUESTION

Cant access mineflayer pathfinder inside an object

Asked 2022-Feb-03 at 00:37

Here is all the code in nodejs

...

ANSWER

Answered 2022-Feb-03 at 00:37

pathfinder is a mineflayer plugin, which means it has to be loaded. I forgot to write

Source https://stackoverflow.com/questions/70962410

QUESTION

How to count the number of s3 folders inside given path?

Asked 2022-Jan-25 at 06:02

I tried to search for this solution through out but wasn't lucky. Hoping to find some solution quickly here. I have some migrated files in S3 and now there is a requirement to identify the number of folders involved in the give path. Say I have some files with as below.

If I give aws s3 ls s3://my-bucket/foo1 --recursive >> file_op.txt

"cat file_op.txt" - will look something like below:

...

ANSWER

Answered 2022-Jan-25 at 04:47

You have clarified that you wanted to count the unique names, ignoring the top two levels (my-bucket and foo1) and the last level (the file name).

Source https://stackoverflow.com/questions/70824735

QUESTION

Installing package via vcpkg causing a "opencv2/opencv.hpp: No such file or directory" error

Asked 2022-Jan-11 at 11:46

I have installed vcpkg and opencv using vcpkg to try import the opencv library in c++ and I keep getting the following error:

...

ANSWER

Answered 2022-Jan-11 at 11:46

Simply said:
a) VS Code is not affect by vcpkg integrate install, only MSBuild is ...
b) setting the CMAKE_TOOLCHAIN_FILE only works before the very first project() call
c) setting CMAKE_TOOLCHAIN_FILE before project() via cmake.configureSettings or other means does not work if there is already a configured cmake cache. d) don't modify CMAKE_PREFIX_PATH

So starting from a clean cmake build without any cache: Set CMAKE_TOOLCHAIN_FILE before project() by any means you want and it works. You might also need to set VCPKG_TARGET_TRIPLET. (using #include seems fine)

Source https://stackoverflow.com/questions/70484581

QUESTION

Using @SerializedName with hyphen not working

Asked 2021-Dec-10 at 01:05

I am trying to deserialize this JSON response into an object and one of my keys has a hyphen on it. Unfortunately, Kotlin does not support hyphens in variable names which is why I used @SerializedName() but it is still now working. Any clues as to why?

JSON Response

...

ANSWER

Answered 2021-Dec-10 at 01:05

Shouldn't it be @SerialName("")?

https://kotlin.github.io/kotlinx.serialization/kotlinx-serialization-core/kotlinx-serialization-core/kotlinx.serialization/-serial-name/index.html

Source https://stackoverflow.com/questions/70298344

QUESTION

Get distance between two locations using non-solid blocks with bukkit

Asked 2021-Nov-27 at 15:06

My goal is to achieve that players on my bukkit server only hear each other, when there are no walls between them. So my idea was to get the distance between the sender of a message on the AsyncPlayerChatEvent and the recipient (getRecipients()) using a (Flying)Pathfinder(Goal), so that there is a path (throught the air) to the other player. If there is no way or the path is too long, I would remove the recipient from the list.

What I have so far:

...

ANSWER

Answered 2021-Nov-27 at 15:06

I was working on how to find the best way to go at specific location. So, I made BaritoneCalculator.

You should do like that to use it :

Source https://stackoverflow.com/questions/69873417

QUESTION

Dynamic pathfinder for includes

Asked 2021-Nov-04 at 09:32

So I I've been creating this HEADER and today I included it in a file which wasn't in the same folder as the other .php files. This resulted in the path from the includes inside the HEADER wasn't the right once.

I was wondering if there was a dynamic pathfinder way to solve this?

In the HEADER I have this

and was wondering if it would be possible to create a function which includes the path instead like

I've tried different things, but can't seem to understand how or even if this is possible.

...

ANSWER

Answered 2021-Nov-04 at 09:32

One possible solution is to use a base tag. This sets the base URL for every href in the page:

Source https://stackoverflow.com/questions/69836224

QUESTION

read file returns null Flutter

Asked 2021-Oct-19 at 02:36

I have a page that writes a color on file, called "colors.txt".Then the page is closed, when it will be opened again this file will be read and its content (String) printed on the screen.

This is the class that handles reads and writes :

...

ANSWER

Answered 2021-Oct-19 at 01:53

  void initState() {
    super.initState();
    String colorRead;
    () async {
      pf = new Pathfinder();
      colorRead = await pf.readColor();
    }();
    print("Color in initState: " + colorRead.toString()); /// << this will execute before the async code in the function is executed
  }

Source https://stackoverflow.com/questions/69624122

QUESTION

Is there a (CSS) filter to cut out the outlines of an image on top of another image?

Asked 2021-Sep-04 at 08:17

I've got two images on top of my webpages. One is a rectangle-shaped JPG file banner, the other is a wave-shaped SVG vector file. Similar to how Adobe Illustrator has its pathfinder tool to cutout shapes: Is there any way to invert-cutout the wave from the banner, using any sort of CSS filter or blend mode or something?

The reason I want to do this using CSS is because it would only require me to change one HTML template for the banner. Otherwise I would have to edit 125+ unique banner image files. Editing the wave file is not a problem if needed, as I would only need it once for the banner template.

Example banner:

Example wave:

Desired result: (the banner should look like this)

...

ANSWER

Answered 2021-Sep-04 at 08:17

I think you can use clip-path
https://developer.mozilla.org/en-US/docs/Web/CSS/clip-path

Source https://stackoverflow.com/questions/69053460

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

Vulnerabilities

No vulnerabilities reported

Install pathfinder

Pathfinder contains a library that implements a subset of the HTML canvas API. You can quickly add vector rendering to any Rust or C/C++ app with it. The library is available on crates.io. See examples/canvas_minimal for a small example of usage.

Support

There's a Matrix chat room available at #pathfinder:mozilla.org. If you're on the Mozilla Matrix server, you can search for Pathfinder to find it. For more information on connecting to the Matrix network, see this wiki.mozilla.org page. The entire Pathfinder community, including the chat room and GitHub project, is expected to abide by the same Code of Conduct that the Rust project itself follows. (At the moment, the authors will handle violations.).

Find more information at: