Method and system for visualizing multiresolution dynamic landform

TL;DR: In this paper, the authors present a method and a system for visualizing a multiresolution dynamic landform, which consists of the following steps: pre-processing initial landform data, storing the initial land form data into a landform vertex array; establishing a quadtree marker array the size of which is the same as the number of vertices in the land form vertex array, assigning elements in the marker array according to landform block errors to generate an implicit quadtree; examining and modifying tagged values to witness fissures in an implicit restricted quadtree, rendering land

Abstract: The invention provides a method and a system for visualizing a multiresolution dynamic landform. The method comprises the following steps: pre-processing initial landform data, storing the initial landform data into a landform vertex array; establishing a quadtree marker array the size of which is the same as the size of the landform vertex array; assigning elements in the marker array according to landform block errors to generate an implicit quadtree; examining and modifying tagged values to witness fissures in an implicit restricted quadtree marker array and eliminating fissures which appear in a landform model; rendering landform blocks according to the tagged values of the elements in the marker array to generate a multiresolution triangular net model for indicating the landform; and carrying out texture mapping on the generated triangular net to generate visualized landforms. The implicit restricted quadtree structure adopted in the method of the invention has the advantages of small occupied space, fast ergodic speed and the like, and the system for visualizing the dynamic landform can process data sets with massive dynamic alterations in real time.