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Accuracy Analysis of Planmetric Coordinate Transformation Between Spatial Information Multi-grids

Xiuxiao Yuan

Abstract

This paper introduces briefly the principle of coordinate transformation between the spatial information multi-grids. By comparing the coordinate accuracy of the affine transformation and rigorous coordinate transformation, it is found that the coordinate accuracy of affine transformation instead of rigorous coordinate transformation is higher than map presentation accuracy in the grid of proper scale. The experimental results provide the scale criterion for both the division of spatial information multi-grid and the manner of spatial data organization which is adapt to spatial coordinate transformation.

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Available abstract

Key concepts: Coordinate system, Affine coordinate system, Transformation (genetics), Affine transformation, Scale (ratio), Grid, Coordinate space, Computer science