9.2.1. 1.Independent version ¶
We can download echarts.min.js directly and introduce it with the < script >tag.
In addition, the source code version echarts.js can be used in the development environment and introduced with the < script > tag, and the source code version contains common error tips and warnings.
We can also directly download more diverse versions on the official website of ECharts, including different themes and languages. The download address is: https://echarts.apache.org/zh/download.html .
These built echarts provide the following customizations:
Full version:
echarts/dist/echarts.jswhich is the largest and containsall the charts and components, see:echarts/echarts.all.js.Common version:
echarts/dist/echarts.common.jssize, contains common charts and components, which can be found in:echarts/echarts.common.js.Simplified version:
echarts/dist/echarts.simple.jsis small and contains only the most commonly used charts and components, which can be found in:echarts/echarts.simple.js.
9.2.2. 2.Use the CDN method ¶
The following recommend two relatively stable foreign CDN, domestic has not found which one is better, it is still recommended to download to the local.
Staticfile CDN (domestic): https://cdn.staticfile.org/echarts/4.3.0/echarts.min.js
JsDelivr: https://cdn.jsdelivr.net/npm/echarts@4.3.0/dist/echarts.min.js .
Cdnjs: https://cdnjs.cloudflare.com/ajax/libs/echarts/4.3.0/echarts.min.js
Staticfile CDN (domestic) ¶
JsDelivr ¶
Cdnjs ¶
9.2.3. 3.NPM method ¶
Due to the npm installation speed is slow. This tutorial uses Taobao image and its commands. cnpm reference for installation and use: use Taobao NPM image.
npm version needs to be greater than 3.0, and if it is lower than this version, you need to upgrade it:
# View version
$ npm -v
2.3.0
#upgradation npm
cnpm install npm -g
# Upgrade or Install cnpm
npm install cnpm -g
Obtain echarts through cnpm:
# Latest stable version
$ cnpm install echarts --save
After the installation, ECharts and zrender will be placed in the node_modules directory, we can use it directly in the project code require('echarts') to use it.
Example ¶
varecharts=require('echarts');//Based on the prepared dom，Initialize Echarts instance varmyChart=echarts.init(document.getElementById('main'));//Draw a chart myChart.setOption({title:{text:'ECharts
Getting Started Example'},tooltip:{},xAxis:{data:['Shirt', 'sweater', 'chiffon shirt', 'pants',' high heels', 'socks']},yAxis:{},series:[{name:'sales volume',type:'bar',data:[5,20,36,10,10,20]}]});
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1. Geographical Information Systems in the World Wide Web Era
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2. Basic technology of WebGIS
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3. Geographic Web Services
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4. aggregation of geographical information
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5. mobile GIS
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6. Geographic information portal
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7. New generation national spatial data infrastructure and GIS
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8. Application of WebGIS in E-Commerce
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9. Application of WebGIS in E-government
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10. Hotspots and frontiers of WebGIS
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1. Angularjs2
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1. SVG tutorial
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1. Memcached
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1. C# tutorial
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1. Sqlite
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2. Go
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2. Docker
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2. Vue3
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2. Servlet
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3. React
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3. SOAP tutorial
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3. Android
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3. Mongodb
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3. Kotlin
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4. Lua
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4. MySQL tutorial
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4. Appml
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5. Perl
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5. Postgresql
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web
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5. Web Services tutorial
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6. Ruby
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6. Design-pattern
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7. Django
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7. Rust
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6. WSDL tutorial
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8. Foundation
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9. Ios
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8. Css3
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9. Swift
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11. HTML tutorial-(HTML5 Standard)
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12. Http
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13. Regex
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14. Regexp
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Principles, Technologies, and Methods of Geographic Information Systems
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In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.
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1. Introduction to Geographic Information Systems
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2. From the Real World to the Bit World
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3. Spatial Data Model
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4. Spatial Reference Systems and Map Projections
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5. Data in GIS
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6. Spatial data acquisition
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7. Spatial Data Management
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8. Spatial analysis
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9. Digital Terrain Model (DTM) and Terrain Analysis
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10. Spatial modeling and spatial decision support
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11. Spatial data representation and map making
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12. 3S Integration Technology
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13. Network Geographic Information System
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14. Examples of Geographic Information System Application
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15. Organization and Management of Geographic Information System Application Projects
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16. Geographic Information system Software Engineering Technology
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17. Geographic Information System Standards
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18. Geographic Information System and Society
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19. Earth Information Science and Digital Earth
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