Journal of System Simulation ›› 2021, Vol. 33 ›› Issue (4): 900-909.doi: 10.16182/j.issn1004731x.joss.20-0769

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Design and Implementation of Multi Level Terrain Editing Tool

Xiang Bing1,2, Yang Gang1,3, Dong Xiaohong2   

  1. 1. Beijing Forestry University, Beijing 100083, China;
    2. Hulunbuir University, Hulunbuir 021008, China;
    3. Engineering Research Center for Forestry-oriented Intelligent Information Processing of National Forestry and Grassland Administration, Beijing 100083, China
  • Received:2020-10-03 Revised:2020-10-22 Online:2021-04-18 Published:2021-04-14

Abstract: 3D terrain is an indispensable scene element in computer games, virtual simulation, geographic information and other applications. Realistic digital terrain plays an important role in enhancing the reality of virtual scene and the immersion of users. Based on the in-depth analysis of terrain features and user modeling requirements, a multi-level terrain editing mode is constructed. In the mode, the terrain editing behavior can be expanded from three levels of point, line and face. Each level has a specific operation target and corresponding editing tools. A multi-level and comprehensive terrain editing tool set composed of point tool, curve tool and brush tool is constructed. It provides users with an intuitive, flexible, systematic and comprehensive means of terrain editing.

Key words: terrain editing, mean coordinate method, moving least square method, brush

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