LinaVG VS canvas_ity

Compare LinaVG vs canvas_ity and see what are their differences.

LinaVG

2D Vector-Graphics library for drawing anti-aliased convex shapes, lines and texts. (by inanevin)
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LinaVG canvas_ity
1 8
212 347
- -
7.8 2.5
8 days ago 9 months ago
C C++
GNU General Public License v3.0 or later ISC License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

LinaVG

Posts with mentions or reviews of LinaVG. We have used some of these posts to build our list of alternatives and similar projects.

canvas_ity

Posts with mentions or reviews of canvas_ity. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-07-06.
  • GPU-Friendly Stroke Expansion
    3 projects | news.ycombinator.com | 6 Jul 2024
    There's a relatively straightforward trick that you can do here. If you've got a transform that turns a circle into an ellipse with the relative radii and orientation that you want, then:

    1. Apply the inverse of that transform to your path.

    2. Stroke the path.

    3. Apply the transform to the result.

    This way, the path stays in place but the stroke is transformed to give it a calligraphic look. JSFiddle example: [0].

    (This was something that I tested in my tiny, single-header -like 2D rasterizer library for C++ and my Javascript port of its test suite [1].)

    For Inkscape, I think you can convert an object to a path, apply the inverse transform, do a minimal simplification to bake the transform into the path, stroke it, and then apply the forward transform. It's a bit clumsy, but I bet someone could easily create an extension script to do it.

    [0] https://jsfiddle.net/y7m16wa0/

    [1] https://github.com/a-e-k/canvas_ity/blob/main/test/test.cpp#..., https://github.com/a-e-k/canvas_ity/blob/main/test/test.html...

  • Writing a TrueType font renderer
    9 projects | news.ycombinator.com | 1 Jan 2024
    I have a small TTF implementation that's in the neighborhood of that size and is open source. It's part of my canvas_ity single-header library [0] that's around 2300 LOC / 36 KB object size and implements a C++ version of most of the 2D HTML5 canvas spec [1].

    The core implementation of the TTF parsing and drawing is in L1526-L1846 with another small bit at L3205-L3274 of src/canvas_ity.hpp.

    It's something of a toy implementation that only supports western left-to-right text, and doesn't do any hinting at all, nor kerning, nor shaping. But it's enough to draw a basic "Hello world!" using any typical TTF file.

    The test suite in test/test.cpp L84-304 embeds a few custom Base64-encoded TTF files. They're small and only have a few glyphs but they do exercise a number of interesting edge cases in the OpenType TTF spec [2]. Have a look at the HTML5 port of the test suite at test/test.html in different browsers to see how their canvas implementations render those fonts.

    [0] https://github.com/a-e-k/canvas_ity

    [1] https://www.w3.org/TR/2015/REC-2dcontext-20151119/

    [2] https://standards.iso.org/ittf/PubliclyAvailableStandards/c0...

  • The Lone Developer Problem
    3 projects | news.ycombinator.com | 27 Feb 2023
    Agreed, that sort of documentation is pure gold when done well.

    It's something I always try to pay forward by doing in my own code. For example, one of my own solo projects was an STB-style single-header -like rasterizer library for C++. I started the implementation half of the library with a short outline of the rendering pipeline's dataflow and the top-level functions responsible for each stage:

    https://github.com/a-e-k/canvas_ity/blob/f32fbb37e2fe7c0fcae...

  • Ask HN: What have you created that deserves a second chance on HN?
    44 projects | news.ycombinator.com | 26 Jan 2023
    https://github.com/a-e-k/canvas_ity

    This is an STB-style single-header C++ library with no dependencies beyond the standard C++ library. In about 2300 lines of 78-column code (not counting blanks or comments), or 1300 semicolons, it implements an API based on the basic W3C specification to draw 2D vector graphics into an image buffer:

    - Strokes and fills (with antialiasing and gamma-correct blending)

    - Linear and radial gradients

    - Patterns (with repeat modes and bi-cubic resampling)

    - Line caps and line joins (handling high curvature)

    - Dash patterns and dash offsets

    - Transforms

    - Lines, quadratic and cubic Beziers, arcs, and rectangles

    - Text (very basic, but does its own TTF font file parsing!)

    - Raster images (i.e., sprites)

    - Clipping (via masking)

    - Compositing modes (Porter-Duff)

    - Drop shadows with Gaussian blurs

    I also uncovered a number of interesting browser quirks along the way with the HTML5 port of my testing suite.

  • Hello, PNG
    13 projects | news.ycombinator.com | 18 Jan 2023
  • A tiny, single-header -like 2D rasterizer for C++
    1 project | news.ycombinator.com | 10 Oct 2022
  • canvas_ity - A tiny, single-header <canvas>-like 2D rasterizer
    2 projects | /r/cpp | 10 Oct 2022
    Repository: https://github.com/a-e-k/canvas_ity
  • Show HN: Canvas_ity – A tiny, single-header -like 2D rasterizer for C++
    1 project | news.ycombinator.com | 9 Oct 2022

What are some alternatives?

When comparing LinaVG and canvas_ity you can also consider the following projects:

DearPyGui - Dear PyGui: A fast and powerful Graphical User Interface Toolkit for Python with minimal dependencies

nanovgXC - Lightweight vector graphics library implementing exact-coverage antialiasing in OpenGL

Fluid-Simulation-Rendering - Implementation of IISPH and Screen Space Fluid Rendering. Currently in progress.

tinf - Tiny inflate library (inflate, gzip, zlib)

herebedragons - A basic 3D scene implemented with various engines, frameworks or APIs.

art - @Bigfan/art is a React custom renderer for HTML5 Canvas.

haiku_darkstyle - Haiku-os ControlLook & Decorator for darkFlat, moonFlat and lightFlat UI mode.

figlet-fonts - my collection of figlet / toilet ascii art fonts

oblivision - A simple UI library rendered directly from a pixel buffer

fpnge - Demo of a fast PNG encoder.

Tephra - A modern, high-performance C++17 graphics and compute library based on Vulkan

skrift - A pure Ruby conversion (*not* wrapper) of the libschrift TrueType font renderer

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