进一步采取分区域选点法，用加权平均法生成了网格数字地形，实现了地形的可视化。
Grid digital terrain is produced with getting reference point by subarea and weighted averaging method, and is visualized.
进一步采取分区域选点法，用加权平均法生成了网格数字地形，实现了地形的可视化。
Grid digital terrain is produced with getting reference point by subarea and weighted averaging method, and is visualized.
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