Introduction to particlesJS usage related content-JS Tutorial-php.cn

Introduction to particlesJS usage related content

jacklove

Release： 2018-06-15 15:15:15

Original

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particles.js

A lightweight JavaScript library for creating particles.
A lightweight JavaScript library for creating particle backgrounds

Let’s take a look at the renderings first:
Standard version:

Introduction to particlesJS usage related content

Starry sky version:
Introduction to particlesJS usage related content
Bubble version:

Snow version:

We can use this What to do?
I think this is more suitable for pages without background, or if you can’t find a suitable picture to use as the background, then we can all use this.
For example:
Introduction to particlesJS usage related content

Introduction to particlesJS usage related content

Well, the effect is quite good.
So, here’s how to use particles.js.

particlesJS Open source on Github: https://github.com/VincentGarreau/particles.js

This project provides a demo, you can download this project directly. Open the index.html file in the demo to see the effect.

So, if we want to build our own project, how do we introduce files?
The suggestions are as follows:

<!DOCTYPE html><html lang="en"><head>
  <meta charset="utf-8">
  <title>particles.js</title>
  <meta name="description" content="particles.js is a lightweight JavaScript library for creating particles.">
  <meta name="author" content="Vincent Garreau" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
  <link rel="stylesheet" media="screen" href="css/style.css"></head><body><p id="particles-js"></p><!-- scripts --><script src="js/particles.js"></script><script src="js/app.js"></script></body></html>

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particles.js is its library, we must introduce it, app.js is the parameter configuration file, we also It needs to be introduced, but there is no need to introduce stats.js in the demo.
style.css We can also introduce that the background color is set in css.

Based on this template, we can add the functions we want to implement, such as the registration and login function. What needs to be noted is:
Use p to encapsulate the functional code block we want to implement. , and set absolute positioning for this p in css.

The following introduces the use of parameter configuration file app.js file:

particles.number.value : The number of particles

particles.number.density : The density of particles

particles.number.density.enable : Enable the density of particles Density (true or false)

particles.number.density.value_area: The space occupied by each particle (available only when particle density is enabled)

particles.color.value: The color of particles (supports hexadecimal "#b61924", rgb "{r:182, g:25, b:36}", hsl, and random)

particles.shape.type: The shape of the particles ("circle" "edge" "triangle" "polygon" "star" "image")

particles.opacity.value : Transparency of particles

particles.size.anim.enable: Whether to enable particle speed (true/false)

particles.size.anim .speed: Particle animation frequency

particles.size.anim.sync: Whether the particle running speed and animation are synchronized

particles.move.speed : Particle movement speed

You can configure your favorite background based on these configuration files. Two complete configuration files are provided belowapp.js.
Configuration file one (classic background):

{  "particles": {    "number": {      "value": 80,      "density": {        "enable": true,        "value_area": 800
      }
    },    "color": {      "value": "#ffffff"
    },    "shape": {      "type": "polygon",      "stroke": {        "width": 0,        "color": "#000000"
      },      "polygon": {        "nb_sides": 5
      },      "image": {        "src": "img/github.svg",        "width": 100,        "height": 100
      }
    },    "opacity": {      "value": 0.5,      "random": false,      "anim": {        "enable": false,        "speed": 1,        "opacity_min": 0.1,        "sync": false
      }
    },    "size": {      "value": 3,      "random": true,      "anim": {        "enable": false,        "speed": 40,        "size_min": 0.1,        "sync": false
      }
    },    "line_linked": {      "enable": true,      "distance": 150,      "color": "#ffffff",      "opacity": 0.4,      "width": 1
    },    "move": {      "enable": true,      "speed": 6,      "direction": "none",      "random": false,      "straight": false,      "out_mode": "out",      "bounce": false,      "attract": {        "enable": false,        "rotateX": 600,        "rotateY": 1200
      }
    }
  },  "interactivity": {    "detect_on": "canvas",    "events": {      "onhover": {        "enable": true,        "mode": "repulse"
      },      "onclick": {        "enable": true,        "mode": "push"
      },      "resize": true
    },    "modes": {      "grab": {        "distance": 400,        "line_linked": {          "opacity": 1
        }
      },      "bubble": {        "distance": 400,        "size": 40,        "duration": 2,        "opacity": 8,        "speed": 3
      },      "repulse": {        "distance": 200,        "duration": 0.4
      },      "push": {        "particles_nb": 4
      },      "remove": {        "particles_nb": 2
      }
    }
  },  "retina_detect": false}

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Configuration file two (starry sky background):

{  "particles": {    "number": {      "value": 160,      "density": {        "enable": true,        "value_area": 800
      }
    },    "color": {      "value": "#ffffff"
    },    "shape": {      "type": "circle",      "stroke": {        "width": 0,        "color": "#000000"
      },      "polygon": {        "nb_sides": 5
      },      "image": {        "src": "img/github.svg",        "width": 100,        "height": 100
      }
    },    "opacity": {      "value": 1,      "random": true,      "anim": {        "enable": true,        "speed": 1,        "opacity_min": 0,        "sync": false
      }
    },    "size": {      "value": 3,      "random": true,      "anim": {        "enable": false,        "speed": 4,        "size_min": 0.3,        "sync": false
      }
    },    "line_linked": {      "enable": false,      "distance": 150,      "color": "#ffffff",      "opacity": 0.4,      "width": 1
    },    "move": {      "enable": true,      "speed": 1,      "direction": "none",      "random": true,      "straight": false,      "out_mode": "out",      "bounce": false,      "attract": {        "enable": false,        "rotateX": 600,        "rotateY": 600
      }
    }
  },  "interactivity": {    "detect_on": "canvas",    "events": {      "onhover": {        "enable": true,        "mode": "bubble"
      },      "onclick": {        "enable": true,        "mode": "repulse"
      },      "resize": true
    },    "modes": {      "grab": {        "distance": 400,        "line_linked": {          "opacity": 1
        }
      },      "bubble": {        "distance": 250,        "size": 0,        "duration": 2,        "opacity": 0,        "speed": 3
      },      "repulse": {        "distance": 400,        "duration": 0.4
      },      "push": {        "particles_nb": 4
      },      "remove": {        "particles_nb": 2
      }
    }
  },  "retina_detect": true}

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