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cleverweb-cz/text-3d-captcha
============================

Simple axonometric 3D text CAPTCHA

v1.0.1(2y ago)3250MITPHPPHP ^8.0

Since Feb 3Pushed 2y agoCompare

[ Source](https://github.com/cleverweb-cz/Text-3D-CAPTCHA)[ Packagist](https://packagist.org/packages/cleverweb-cz/text-3d-captcha)[ RSS](/packages/cleverweb-cz-text-3d-captcha/feed)WikiDiscussions master Synced 3w ago

READMEChangelogDependencies (1)Versions (3)Used By (0)

Text 3D CAPTCHA
===============

[](#text-3d-captcha)

**Simple axonometric 3D text CAPTCHA**

[![Text 3D CAPTCHA](./example/example.svg)](./example/example.svg)

- Creates an axonometric letter projection that is difficult to read for OCR, but easy for humans.
- Uses the built-in bitmap fonts of the PHP GD library to create the source height-map array.
- Random noise is applied to the source map so that the result is not deterministic.
- The output is raster PNG or vector SVG.

---

Prerequisites
-------------

[](#prerequisites)

- PHP 8.0+
- [GD library](http://php.net/manual/en/book.image.php)

Installation
------------

[](#installation)

The preferred way to install this library is by using Composer:

```
composer require cleverweb-cz/text-3d-captcha

```

Usage
-----

[](#usage)

### Basic

[](#basic)

```
$map = new GdFont('ABCD 123');
$image = new Svg(new Axonometry($map));
header('Content-Type: '.Svg::getMimeType());
$image->save(); // Output to browser
```

### Custom

[](#custom)

```
/**
 * noise = 0
 * padding = 0.2 (20%)
 * emboss height volume = 0.7 (70%)
 */
$map = new GdFont('ABCD 123', 0, .2, .7);

/**
 * Projection scale = 6x
 * Projection angle = 1.57 rad (90 deg)
 * Foreground color = red
 * Background color = gray
 */
$image = new Png(new Axonometry($map, 6., 1.57), 0xff0000, 0xcccccc);
header('Content-Type: '.Png::getMimeType());
$image->save(); // Output to browser
```

Also check the examples in the `/example` directory.

###  Health Score

31

—

LowBetter than 66% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity15

Limited adoption so far

Community6

Small or concentrated contributor base

Maturity67

Established project with proven stability

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~1879 days

Total

2

Last Release

817d ago

PHP version history (2 changes)v1.0.0PHP ^7.1

v1.0.1PHP ^8.0

### Community

Maintainers

![](https://www.gravatar.com/avatar/f39db9ab327ece7398926d2d030251b12dd8bd05927ec64bf38ac7ae628e3af1?d=identicon)[hozikm](/maintainers/hozikm)

---

Top Contributors

[![hozikm](https://avatars.githubusercontent.com/u/5350234?v=4)](https://github.com/hozikm "hozikm (3 commits)")

---

Tags

3dcaptchaphppngsvgcaptcha3d

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/cleverweb-cz-text-3d-captcha/health.svg)

```
[![Health](https://phpackages.com/badges/cleverweb-cz-text-3d-captcha/health.svg)](https://phpackages.com/packages/cleverweb-cz-text-3d-captcha)
```

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