多层次地形编辑工具的设计与实现

Design and Implementation of Multi Level Terrain Editing Tool

三维地形是计算机游戏、虚拟仿真、地理信息等各种应用领域中不可或缺的场景元素。逼真的数字地形对于增强虚拟场景的真实感,提高用户的沉浸感具有重要作用。在对地形特征及用户的建模需求进行深入分析的基础上,构建了一种多层次的地形编辑模式。在此模式下,地形编辑行为可以从点、线、面3个层次来展开,每个层次都有特定的操作目标和对应的编辑工具,构建形成了由点工具、曲线工具和笔刷工具组成的多层次、综合化的地形编辑工具集。为用户提供了一种直观灵活、系统全面的地形编辑手段。

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.