在分析了算法对线要素化简过程中对其邻近其他地理要素的空间精度和空间关系产生影响的基础上,提出了线要素化简算法误差传播的研究方法,建立了线要素化简算法的传递误差模型,并利用误差椭圆将模型可视化。最后针对不同线要素,对不同算法的传递误差进行了分析和评估。
On the basis of analyzing influence of spatial accuracy and relationship to other geographic features, researching method of error propagation of linear features' simplification algorithms is proposed, error propagation model of linear features' simplification algorithms is developed, and the model is visualized using error ellipse, finally, aiming at different linear features, error propagation of different algorithms is analyzed and evaluated.