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Pixel graphics in terminal with unicode braille characters

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Drawing in terminal with unicode braille characters

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A high-level terminal interface library for node.js.

Quick Overview

Drawille is a Python library that allows you to create and manipulate text-based graphics using Unicode characters. It provides a simple and efficient way to generate and display ASCII-based drawings, charts, and visualizations in the terminal or other text-based environments.

Pros

  • Cross-platform Compatibility: Drawille works on various operating systems, including Windows, macOS, and Linux, making it a versatile tool for developers and users.
  • Lightweight and Efficient: The library is lightweight and efficient, with a small footprint and fast rendering capabilities, making it suitable for use in resource-constrained environments.
  • Flexible API: Drawille offers a flexible API that allows users to easily create, manipulate, and display a wide range of text-based graphics.
  • Integrates with Other Libraries: The library can be integrated with other Python libraries, such as Matplotlib, to create more complex visualizations and data representations.

Cons

  • Limited to Text-based Environments: Drawille is primarily designed for text-based environments, such as the terminal, and may not be the best choice for creating high-resolution or graphical-intensive visualizations.
  • Learning Curve: While the library is relatively easy to use, there may be a learning curve for users who are not familiar with text-based graphics or the Braille-based drawing technique used by Drawille.
  • Lack of Advanced Features: Compared to more sophisticated visualization libraries, Drawille may lack some advanced features, such as support for interactive plots or complex color palettes.
  • Potential Compatibility Issues: As a relatively niche library, Drawille may occasionally encounter compatibility issues with newer versions of Python or other dependencies.

Code Examples

Here are a few examples of how to use the Drawille library:

  1. Drawing a Simple Shape:
from drawille import Canvas, line

canvas = Canvas()
line(canvas, 5, 5, 20, 20)
print(canvas.frame())

This code creates a Canvas object, draws a line between the coordinates (5, 5) and (20, 20), and then prints the resulting frame.

  1. Generating a Sine Wave:
import math
from drawille import Canvas, line

canvas = Canvas()

for x in range(0, 80):
    y = int(math.sin(x * 0.1) * 10) + 10
    line(canvas, x, 0, x, y)

print(canvas.frame())

This code generates a sine wave by iterating over the x-axis, calculating the y-coordinate based on a sine function, and then drawing a line from the bottom of the canvas to the calculated y-coordinate.

  1. Integrating with Matplotlib:
import matplotlib.pyplot as plt
from drawille import Canvas, line

fig, ax = plt.subplots()
ax.plot([1, 2, 3, 4], [1, 4, 9, 16])

canvas = Canvas()
for x, y in zip(ax.get_xticks(), ax.get_yticks()):
    line(canvas, x, y, x, y)

print(canvas.frame())

This example shows how to integrate Drawille with Matplotlib to create a text-based representation of a simple plot.

Getting Started

To get started with Drawille, you can install the library using pip:

pip install drawille

Once installed, you can import the necessary modules and start creating your text-based graphics. The following example demonstrates how to draw a simple shape:

from drawille import Canvas, line

canvas = Canvas()
line(canvas, 5, 5, 20, 20)
print(canvas.frame())

This code will output the following text-based representation of the drawn shape:

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Competitor Comparisons

Drawing in terminal with unicode braille characters

Pros of node-drawille

  • Provides a Node.js implementation of the Drawille library, allowing for easy integration with Node.js projects.
  • Supports a wider range of terminal emulators, including Windows PowerShell and Windows Command Prompt.
  • Includes additional features like support for custom character sets and the ability to draw lines and shapes.

Cons of node-drawille

  • May have a smaller user base and community compared to the original Drawille library.
  • Potential for compatibility issues with certain Node.js versions or environments.
  • May have a slightly higher learning curve for developers already familiar with the original Drawille library.

Code Comparison

asciimoo/drawille:

from drawille import Canvas, line

c = Canvas()
c.set(10, 10)
c.set(20, 20)
print(c.frame())

madbence/node-drawille:

const { Canvas, line } = require('node-drawille');

const c = new Canvas();
c.set(10, 10);
c.set(20, 20);
console.log(c.frame());

The code snippets demonstrate the similar usage of the Canvas and line functions in both the Python and Node.js implementations of the Drawille library.

Small C++ program to display images in a (modern) terminal using RGB ANSI codes and unicode block graphics characters

Pros of TerminalImageViewer

  • Supports a wider range of image formats, including JPEG, PNG, and GIF, whereas Drawille is primarily focused on ASCII art.
  • Provides a more user-friendly interface with keyboard controls for zooming, panning, and toggling between different display modes.
  • Offers better performance and responsiveness when rendering images, especially larger ones.

Cons of TerminalImageViewer

  • Requires additional dependencies, such as the Java Runtime Environment, which may not be available on all systems.
  • The installation process may be more complex compared to Drawille, which is a single Python script.
  • The project has a smaller community and fewer contributors compared to Drawille, which may result in slower development and fewer updates.

Code Comparison

Drawille (Python):

from drawille import Canvas, line

c = Canvas()
c.set(10, 10)
c.set(20, 20)
print(c.frame())

TerminalImageViewer (Java):

public static void main(String[] args) {
    TerminalImageViewer viewer = new TerminalImageViewer();
    viewer.showImage("path/to/image.jpg");
}
49,200

Rich is a Python library for rich text and beautiful formatting in the terminal.

Pros of Rich

  • Rich provides a wide range of features for creating rich, formatted text in the terminal, including support for colors, styles, and emojis.
  • The library has a large and active community, with extensive documentation and a wide range of examples.
  • Rich integrates well with other popular Python libraries, such as Pandas and Matplotlib, making it a versatile tool for data visualization and reporting.

Cons of Rich

  • Rich may have a larger memory footprint compared to Drawille, as it includes a more comprehensive set of features.
  • The learning curve for Rich may be steeper than Drawille, as it has a more complex API and a wider range of functionality.
  • Rich may not be as well-suited for creating simple, lightweight terminal-based applications as Drawille.

Code Comparison

Drawille:

from drawille import Canvas

c = Canvas()
c.set(10, 10)
print(c.frame())

Rich:

from rich.console import Console
from rich.text import Text

console = Console()
text = Text("Hello, World!", style="bold red")
console.print(text)

:tea: All Gang of Four Design Patterns written in Unity C# with many examples. And some Game Programming Patterns written in Unity C#. | 各种设计模式的Unity3D C#版本实现

Pros of Unity-Design-Pattern

  • Provides a comprehensive collection of design patterns implemented in Unity, covering a wide range of use cases.
  • Includes detailed explanations and examples for each design pattern, making it easier for developers to understand and apply them.
  • Offers a structured and organized approach to implementing design patterns in Unity projects.

Cons of Unity-Design-Pattern

  • Primarily focused on Unity-specific design patterns, which may not be as applicable to non-Unity projects.
  • The repository may not be as actively maintained as drawille, potentially leading to outdated information or lack of updates.
  • The documentation, while detailed, may not be as concise or user-friendly as the drawille project.

Code Comparison

drawille

from drawille import Canvas

c = Canvas()
c.set(10, 10)
c.dump()

Unity-Design-Pattern

public class Singleton<T> where T : class, new()
{
    private static T instance;

    public static T Instance
    {
        get
        {
            if (instance == null)
            {
                instance = new T();
            }
            return instance;
        }
    }
}

The drawille project is a Python library for creating ASCII art using a terminal, while the Unity-Design-Pattern repository is a collection of design patterns implemented in C# for Unity projects. The code comparison shows the simplicity of the drawille library, where a single line of code can create a simple ASCII art canvas, compared to the more complex implementation of the Singleton design pattern in Unity-Design-Pattern.

11,248

A high-level terminal interface library for node.js.

Pros of Blessed

  • Blessed provides a more comprehensive set of UI components and widgets, including text boxes, menus, and modal dialogs, making it easier to build complex terminal-based applications.
  • Blessed has better support for handling user input and events, with built-in support for keyboard, mouse, and touch events.
  • Blessed's rendering engine is more efficient and can handle larger and more complex terminal interfaces.

Cons of Blessed

  • Blessed has a larger codebase and dependency tree, which can make it more difficult to set up and configure for smaller projects.
  • Blessed's API can be more complex and less intuitive than Drawille, especially for simple terminal-based applications.
  • Blessed may have a steeper learning curve for developers who are new to terminal-based UI development.

Code Comparison

Drawille:

from drawille import Canvas, line

c = Canvas()
c.set(10, 10)
c.set(20, 20)
print(c.frame())

Blessed:

const blessed = require('blessed');

const screen = blessed.screen();
const box = blessed.box({
  top: 'center',
  left: 'center',
  width: '50%',
  height: '50%',
  content: 'Hello, world!',
  border: {
    type: 'line'
  },
  style: {
    fg: 'white',
    bg: 'magenta',
    border: {
      fg: '#f0f0f0'
    }
  }
});

screen.append(box);
screen.render();

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README

DRAWILLE

Drawing in terminal with Unicode Braille characters

Flattr this git repo

Drawille

Drawille

Drawille

Drawille

USAGE

from __future__ import print_function
from drawille import Canvas
from math import sin, radians

c = Canvas()

for x in range(0, 1800, 10):
    c.set(x / 10, 10 + sin(radians(x)) * 10)

print(c.frame())

Usage

from drawille import Turtle

t = Turtle()

for _ in range(36):
    t.right(10)
    for _ in range(36):
        t.right(10)
        t.forward(8)

print(t.frame())

Turtle

Installation

To install drawille, simply:

$ pip install drawille

or

$ easy_install drawille

Bugs

Bugs or suggestions? Visit the issue tracker.

Tested fonts

FontWorks
TerminusYes
FixedYes
DejaVuSansMonoYes

Tested terminals

TerminalWorks
rxvt-unicodeYes

LICENSE

drawille is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

drawille is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with drawille. If not, see < http://www.gnu.org/licenses/ >.

(C) 2014- by Adam Tauber, <asciimoo@gmail.com>

Other implementations / similar projects

Further reading