具有自相交多边形的Solr空间搜索 [英] Solr Spatial search with self-intersecting polygons

问题描述

我正在使用Solr 4.3.0和最新版本的JTS和spatial4j.作为我的schema.xml中的字段类型，我使用的是"location_rpt"，如文档中的描述. 文档

I’m using Solr 4.3.0 with an up to date version of JTS and spatial4j. As field type in my schema.xml i’m using "location_rpt" like the description in the documentation. Documentation

<field name="standort" type="location_rpt" indexed="true" stored="true" />

现在，当我的应用程序创建这样的FilterQuery

Now when my Application create a FilterQuery like this

standort:"IsWithin (POLYGON((16.243972778320312 48.27016879304729, 16.411170959472656 48.268340583150504, 16.44275665283203 48.19058119922813, 16.32396697998047 48.15921534239267,16.243972778320312 48.27016879304729)))

一切正常.我的问题是，当我尝试使用更复杂的多边形(自相交)时，Solr仅显示如下错误:

everything works fine. My problem is when im trying to use a more complex polygon (self-intersecting) Solr only shows an Error like this:

org.apache.solr.common.SolrException: com.spatial4j.core.exception.InvalidShapeException: Self-intersection at or near point (16.315572194579204, 48.26688289499306, NaN)

相应的查询如下:

standort:"IsWithin (POLYGON((16.253585815429688 48.27748097861045, 16.506271362304688 48.23427822033628, 16.418380737304688 48.18646123261718, 16.286544799804688 48.28958948415696,16.253585815429688 48.27748097861045)))"

多边形的屏幕

是否有任何变通办法可以使自相交的polgyon查询正常工作?

Are there any workarounds to get self-intersecting polgyon querys to work?

推荐答案

不，不是.您可以在客户端上使用JTS清理多边形，以便在Solr获取多边形时才有效.参见 http://tsusiatsoftware.net/jts/jts-faq/jts- faq.html#G

No, not really. You can use JTS on the client to clean up your polygon so that when Solr gets it, it's valid. See http://tsusiatsoftware.net/jts/jts-faq/jts-faq.html#G

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