Giter Club home page Giter Club logo

customgisapi's Introduction

自定义 GIS API

矩阵基础（Canvas Matrix）

坐标

  • Latlon => 地理经纬度坐标
  • Projection => 地理平面坐标（投影坐标）
  • Screen => 屏幕平面坐标

Matrix

  • a水平方向的缩放 (Scale X)
  • b水平方向的倾斜偏移
  • c竖直方向的倾斜偏移
  • d竖直方向的缩放 (scale Y)
  • e水平方向的移动 (translate X)
  • f竖直方向的移动 (translate Y)
[a, b, e
 b, d, f
 0, 0, 1]

Matrix API

  • Get & Set：getTransform & setTransform
  • transform(a, b, c, d, e, f) （屏幕坐标 => 屏幕坐标）
  • setTransform(a, b, c, d, e, f) （地理坐标 => 屏幕坐标）
  • scale(x, y) & translate(x, y) （屏幕坐标 => 屏幕坐标）

customgisapi's People

Contributors

xizher avatar

Stargazers

avatar

Watchers

avatar

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google ❤️ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.