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- 2018
一种狭长图斑分块融解方法
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Abstract:
融解是图斑综合过程中的一种常见操作，涉及大量计算。面对传统方法受机器计算能力所限，难以对大范围海量图斑进行处理的问题，引入分块策略开展图斑融解，并就块与块之间边界处狭长图斑分裂线拓扑变化问题，提出了一种狭长图斑分块融解方法。首先归纳了狭长图斑分块时在格网边界处出现的4种拓扑变化模式，并针对每种模式提出了相应的分裂线拓扑变化恢复方法；然后利用中国贵州省赤水市地理国情普查实际数据进行了验证。试验结果表明，该方法不仅可以处理海量图斑数据，可以极大地提高融解效率，而且融解结果与整体处理结果保持高度一致，具有良好的可行性
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