1.5. SVG <rect>

1.5.1. SVG Shapes ¶

SVG has some predefined shape elements that can be used and manipulated by developers:

• Rectangle

• Circle

• Ellipse

• Line

• Broken line polyline>

• Polygon

• Path

  The following sections will explain these elements, starting with rectangular elements.

  1.5.2. SVG rectangle- ¶

  Example 1 ¶

  tags can be used to create rectangles, as well as variants of rectangles:

  Here is the SVG code:

  Example

  <svg xmlns="http://www.w3.org/2000/svg" version="1.1"> <rect width="300" height="100" style="fill:rgb(0,0,255);stroke-width:1;stroke:rgb(0,0,0)"/> svg>    
   For Opera users: view the SVG file (right-click the SVG drawing preview source). 
   
   Code parsing: 
   
   
   
     rect   of the element   width   and   height   property defines the height and width of the rectangle 
   
   
   
     style   Property is used to define the CSS property 
   
   
   
   CSS’s   fill   property defines the fill color of the rectangle (rgb value, color name, or hexadecimal value) 
   
   
   
   CSS’s   stroke-width   property defines the width of the rectangular border 
   
   
   
   CSS’s   stroke   property defines the color of the rectangular border 
   
   
     
   
    1.5.3.  Example 2  ¶  
   
   Let’s look at another example, which contains some new properties: 
   
   Example 
   
   
   
  <svg xmlns="http://www.w3.org/2000/svg" version="1.1"> <rect x="50" y="20" width="150" height="150" style="fill:blue;stroke:pink;stroke-width:5;fill-opacity:0.1; stroke-opacity:0.9"/> svg>    
   For Opera users: view SVG files 
   
   Code parsing: 
   
   
   
   The x attribute defines the left position of the rectangle (for example, x = “0” defines that the distance from the rectangle to the left side of the browser window is 0px) 
   
   
   
   The y attribute defines the top position of the rectangle (for example, y = “0” defines that the distance from the rectangle to the top of the browserwindow is 0px) 
   
   
   
   CSS’s   fill-opacity   property defines the fill color transparency (the legal range is: 0-1) 
   
   
   
   CSS’s   stroke-opacity   property defines the transparency of the outline color (the legal range is: 0-1) 
   
   
    
   
    1.5.4.  Example 3  ¶  
   
   Define the opacity of the entire element: 
   
   Here is the SVG code: 
   
   Example 
   
   
   
  <svg xmlns="http://www.w3.org/2000/svg" version="1.1"> <rect x="50" y="20" width="150" height="150" style="fill:blue;stroke:pink;stroke-width:5;opacity:0.5"/> svg>    
   For Opera users: view SVG files 
   
   
   
   The CSS opacity attribute is used to define the transparency value of the element (range: 0 to 1). 
   
   
    
   
    1.5.5.  Example 4  ¶  
   
   For the last example, create a rounded rectangle: 
   
   Here is the SVG code: 
   
   Example 
   
   
   
  <svg xmlns="http://www.w3.org/2000/svg" version="1.1"> <rect x="50" y="20" rx="20" ry="20" width="150" height="150" style="fill:red;stroke:black;stroke-width:5;opacity:0.5"/> svg>    
   For Opera users: view SVG files 
   
   
   
     rx   and   ry   property to fillet the rectangle. 
   
   
     
                  
                  
  
                      
  
                          
  
                              
                                  文章链接
                              
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                              1.5. SVG <rect> 
                          
                      
                  
              
          
          
  
              
  
      
          
          
  
              
  
                  
  
                      
                          
                              
                                  Web框架 
                              
                              
                          
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                                                  1. Angularjs2 
                                              
                                              
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                                                  1. SVG tutorial 
                                              
                                              
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                                                              1.17. SVG gradient-Linear 
                                                          
                                                      
                                                  
                                              
                                                  
                                                      
  
                                                          
                                                              
                                                              1.20. SVG reference manual 
                                                          
                                                      
                                                  
                                              
                                                  
                                                      
  
                                                          
                                                              
                                                              1.14. SVG filter 
                                                          
                                                      
                                                  
                                              
                                                  
                                                      
  
                                                          
                                                              >
                                                              1.5. SVG <rect> 
                                                          
                                                      
                                                  
                                              
                                                  
                                                      
  
                                                          
                                                              
                                                              1.18. SVG gradient-radioactivity 
                                                          
                                                      
                                                  
                                              
                                                  
                                                      
  
                                                          
                                                              
                                                              1.2. SVG introduction 
                                                          
                                                      
                                                  
                                              
                                                  
                                                      
  
                                                          
                                                              
                                                              1.10. SVG <polyline> 
                                                          
                                                      
                                                  
                                              
                                                  
                                                      
  
                                                          
                                                              
                                                              1.16. SVG Shadow 
                                                          
                                                      
                                                  
                                              
                                                  
                                                      
  
                                                          
                                                              
                                                              1.19. SVG instance 
                                                          
                                                      
                                                  
                                              
                                                  
                                                      
  
                                                          
                                                              
                                                              1.8. SVG <line> 
                                                          
                                                      
                                                  
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                          
                                      
                                  
                              
                          
                          
  
                              
                                  
                                      
                                          
                                          
                                              
                                                  
                                                  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 
                                              
                                              
                                                  12
                                              
                                          
                                          
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                          
                                      
                                  
                              
                          
                          
  
                              
                                  
                                      
                                          
                                          
                                              
                                                  
                                                  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 
                                              
                                              
                                                  22
                                              
                                          
                                          
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                          
                                      
                                  
                              
                          
                          
  
                              
                                  
                                      
                                          
                                          
                                              
                                                  
                                                  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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                                  《地理信息系统原理、技术与方法》 
                              
                              
                          
                               97
                          
                      
                      
                      
                          
  
                              
   
   
   最近几年来，地理信息系统无论是在理论上还是应用上都处在一个飞速发展的阶段。 GIS被应用于多个领域的建模和决策支持，如城市管理、区划、环境整治等等，地理信息成为信息时代重要的组成部分之一； “数字地球”概念的提出，更进一步推动了作为其技术支撑的GIS的发展。 与此同时，一些学者致力于相关的理论研究，如空间感知、空间数据误差、空间关系的形式化等等。 这恰好说明了地理信息系统作为应用技术和学科的两个方面，并且这两个方面构成了相互促进的发展过程。 
   
   
                          
  
                      
                  
                  
  
                      
                          
  
                              
                                  
                                      
                                          
                                          
                                              
                                                  
                                                  1. Introduction to geographic information system 
                                              
                                              
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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. 空间参照系统和 地图投影 
                                              
                                              
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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. 数字地形模型（ DTM ）与地形分析 
                                              
                                              
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                                                  10. 空间建模与 空间决策支持 
                                              
                                              
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                                                  11. Spatial data representation and map making 
                                              
                                              
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                                                  12. 3S Integration Technology 
                                              
                                              
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                                                  13. 网络地理信息系统 
                                              
                                              
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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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                                  WEB基础 
                              
                              
                          
                               289
                          
                      
                      
                      
                          
  
                              
   
   
   
                          
  
                      
                  
                  
  
                      
                          
  
                              
                                  
                                      
                                          
                                          
                                              
                                                  
                                                  2. ADO tutorial 
                                              
                                              
                                                  23
                                              
                                          
                                          
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                          
                                      
                                  
                              
                          
                          
  
                              
                                  
                                      
                                          
                                          
                                              
                                                  
                                                  4. W3C tutorial 
                                              
                                              
                                                  16
                                              
                                          
                                          
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                          
                                      
                                  
                              
                          
                          
  
                              
                                  
                                      
                                          
                                          
                                              
                                                  
                                                  5. Data-structures 
                                              
                                              
                                                  31
                                              
                                          
                                          
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                          
                                      
                                  
                              
                          
                          
  
                              
                                  
                                      
                                          
                                          
                                              
                                                  
                                                  8. Scala 
                                              
                                              
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                                                  7. Bootstrap5 
                                              
                                              
                                                  37
                                              
                                          
                                          
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                          
                                      
                                  
                              
                          
                          
  
                              
                                  
                                      
                                          
                                          
                                              
                                                  
                                                  10. Markdown 
                                              
                                              
                                                  10
                                              
                                          
                                          
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                          
                                      
                                  
                              
                          
                          
  
                              
                                  
                                      
                                          
                                          
                                              
                                                  
                                                  9. Echarts 
                                              
                                              
                                                  12
                                              
                                          
                                          
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                          
                                      
                                  
                              
                          
                          
  
                              
                                  
                                      
                                          
                                          
                                              
                                                  
                                                  11. Maven 
                                              
                                              
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                                                  10. Font-awesome 
                                              
                                              
                                                  17
                                              
                                          
                                          
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                          
                                      
                                  
                              
                          
                          
  
                              
                                  
                                      
                                          
                                          
                                              
                                                  
                                                  12. RDF tutorial 
                                              
                                              
                                                  11
                                              
                                          
                                          
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                                  
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                              
                                          
                                      
                                  
                              
                          
                          
  
                              
                                  
                                      
                                          
                                          
                                              
                                                  
                                                  13. Sass 
                                              
                                              
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                                                  15. XML Schema tutorial 
                                              
                                              
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