1.13. SVG Stroke attribute

发布时间 :2023-12-07 23:00:02 UTC      

1.13.1. SVG Stroke attribute

SVG provides a wide range of stroke property. In this chapter, we will look at the following:

  • stroke

  • stroke-width

  • stroke-linecap

  • stroke-dasharray

All stroke attributes that can be applied to any kind of lines, text and elements are like the outline of a circle.

1.13.2. SVG stroke attribute

Stroke property defines a line, text, or element outline color:

Here is the SVG code:

Example

<svg xmlns="http://www.w3.org/2000/svg" version="1.1">
  <g fill="none">
    <path stroke="red" d="M5 20 l215 0" />
    <path stroke="blue" d="M5 40 l215 0" />
    <path stroke="black" d="M5 60 l215 0" />
  </g>
</svg>

1.13.3. SVG stroke-width attribute

Tstroke- width property defines a line, text, or element outline thickness:

Here is the SVG code:

Example

<svg xmlns="http://www.w3.org/2000/svg" version="1.1">
  <g fill="none" stroke="black">
    <path stroke-width="2" d="M5 20 l215 0" />
    <path stroke-width="4" d="M5 40 l215 0" />
    <path stroke-width="6" d="M5 60 l215 0" />
  </g>
</svg>

1.13.4. SVG stroke-linecap attribute

strokelinecap property defines the end of different types of open paths:

Here is the SVG code:

Example

<svg xmlns="http://www.w3.org/2000/svg" version="1.1">
  <g fill="none" stroke="black" stroke-width="6">
    <path stroke-linecap="butt" d="M5 20 l215 0" />
    <path stroke-linecap="round" d="M5 40 l215 0" />
    <path stroke-linecap="square" d="M5 60 l215 0" />
  </g>
</svg>

1.13.5. SVG stroke-dasharray attribute

strokedasharray property is used to create dashed lines:

Here is the SVG code:

Example

<svg xmlns="http://www.w3.org/2000/svg" version="1.1">
  <g fill="none" stroke="black" stroke-width="4">
    <path stroke-dasharray="5,5" d="M5 20 l215 0" />
    <path stroke-dasharray="10,10" d="M5 40 l215 0" />
    <path stroke-dasharray="20,10,5,5,5,10" d="M5 60 l215 0" />
  </g>
</svg>
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.