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Design and Implementation of Online Emergency Plot Symbol Based on SVG

Zhu, Wenjuan ; Lu, Wenjuan ; Li, Ying ; Li, Chengming ; Shen, Jianming

Ce hui di li xin xi = Journal of Geomatics, 2018-01 (5), p.96

Wuhan: Wuhan University Journals Press

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  • Título:
    Design and Implementation of Online Emergency Plot Symbol Based on SVG
  • Autor: Zhu, Wenjuan ; Lu, Wenjuan ; Li, Ying ; Li, Chengming ; Shen, Jianming
  • Assuntos: Emergencies ; Geographical coordinates ; Heredity ; Illustrations ; Internet ; Java (programming language) ; Mapping ; Plotting ; Programming languages ; Symbols ; Transformation
  • É parte de: Ce hui di li xin xi = Journal of Geomatics, 2018-01 (5), p.96
  • Descrição: This paper analyzes the technical features of several programming languages according to the current development trend of WebGIS and the requirements of emergency symbols plotting on the Web map, designs the online mapping mechanism based on the SVG emergency symbol, and interprets transformation of the geographical coordinates and the generation of the control points of the irregular emergency symbols. Then, based on the ananlysis of the symbolic features, this paper mainly divides them into two category : emergency plotting symbols and functions and plots them through three layers of inheritance mapping mechanism (basic symbol building class-specific drawing classes-editor). Results show that this mechanism can better realize the interactive emergency sign online plotting, can meet the emergency rule and relatively complex and changeable field environment, and achieves the expected requirement: the dot notation by custom template can extends infinitely, can reduce the development difficulty by providing use
  • Editor: Wuhan: Wuhan University Journals Press
  • Idioma: Chinês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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