Raster data visualization method and system based on three-dimensional earth model

Abstract

The invention discloses a raster data visualization method and system based on a three-dimensional earth model, and the method comprises the steps: receiving a raster data file uploaded by a user, and carrying out the data processing of the raster data file, and obtaining a plurality of pieces of lattice point data; according to the multiple pieces of lattice point data, Canvas elements are created, background color filling is carried out on all lattice points of the Canvas elements, and a data heat map is obtained; based on the created initial three-dimensional earth model, in combination with the data heat map and global vector data, creating a texture map containing a national boundary line to obtain a corresponding interactive three-dimensional earth model; and responding to the operation of the user, and displaying corresponding lattice point data on the interactive three-dimensional earth model. According to the method, the Canvas elements are created and subjected to background color filling by utilizing the lattice point data corresponding to the raster data file, then the texture map of the interactive three-dimensional earth model is obtained by combining the global vector data, and the visualization of the raster data is realized by responding to the user operation and displaying the corresponding lattice point data.

Description

technical field [0001] The invention relates to the technical field of data visualization, in particular to a grid data visualization method and system based on a three-dimensional earth model. Background technique [0002] With the rapid development of network communication technology and multimedia technology, a concept of three-dimensional earth that can embed geographical data and multi-resolution emerges as the times require. For a long time, for different research backgrounds and application purposes, people have established many visualization models based on various data types, algorithms, and mathematical theories based on the existing computer development level to display the earth, the earth's environment, and the activities on the earth in three dimensions. , to visualize the data. In the existing technology, based on the elevation data and image data processed by data layering and block processing, triangulation 3D earth models with different resolutions are cre...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a raster data visualization method and system based on a three-dimensional earth model to solve the technical problem of high complexity in recreating the three-dimensional earth model when the resolution of the input data changes

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