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ArcGIS Runtime 离线gdb数据缺失问题处理
2022-06-09 03:29:00 【不超限】
ArcGIS Runtime for Android做的App加载离线gdb时, 发现数据存在缺失的问题.经过多次测试, 在制作离线gdb时, 需要做如下处理
(1)几何修复, 修复数据中几何错误
(2)地图视图缩放至数据整个范围
(3)最好处理一下数据中的曲线, 否则在移动端可能会产生未知问题
(4)使用高版本的ArcGIS制作离线gdb, 经过测试, 10.2.2在某些情况下, 存在部分要素丢失的情况, 缩放一下地图视图, 又无要素丢失的情况. 该问题在10.7上并未发现
制作完成的离线gdb, 最好进行人工对要素数量进行核查.
其他需要注意的是,
离线gdb不支持图层的 定义查询功能, 如果想通过定义查询功能对图层进行筛选配置, 制作不同的渲染,通过对图层的检索时, 会出现多个重复要素.上述需求, 需要通过要素集分割的方式实现
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