1.8. SVG <line>

发布时间 :2023-12-07 00:55:31 UTC      

1.8.1. SVG straight line- <line>

<line> Element is used to create a straight line:

Here is the SVG code:

Example

<svg xmlns="http://www.w3.org/2000/svg" version="1.1">
  <line x1="0" y1="0" x2="200" y2="200"
  style="stroke:rgb(255,0,0);stroke-width:2"/>
</svg>

For Opera users: view the SVG file (right-click the SVG drawing preview source).

  • The X1 property defines the beginning of the line on the x-axis

  • The Y1 property defines the beginning of the line on the y-axis

  • The x2 property defines the end of the line on the x-axis.

  • The Y2 property defines the end of the line on the y-axis.

Principles, Technologies, and Methods of Geographic Information Systems  102

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.