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https://issues.apache.org/jira/browse/LUCENE-7906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16101726#comment-16101726
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Karl Wright edited comment on LUCENE-7906 at 7/26/17 2:32 PM:
--------------------------------------------------------------
Ah, I included the wrong code. The "crosses" detection uses this logic:
{code}
if (left != null) {
if (left.crosses(minLat, maxLat, minLon, maxLon)) {
return true;
}
}
if (right != null && maxLat >= low) {
if (right.crosses(minLat, maxLat, minLon, maxLon)) {
return true;
}
}
{code}
So, you are correct; the code should read "maxValue >= low".
was (Author: [email protected]):
Looking at the new way this is being done in the 2D world, it's not compatible
with the edge traversal accounting that is needed for the 3D world. So I don't
see that it can be adapted readily.
> Spatial relationship between Geoshapes
> --------------------------------------
>
> Key: LUCENE-7906
> URL: https://issues.apache.org/jira/browse/LUCENE-7906
> Project: Lucene - Core
> Issue Type: Improvement
> Components: modules/spatial3d
> Reporter: Ignacio Vera
> Assignee: Karl Wright
> Attachments: LUCENE-7906.patch
>
>
> Hi,
> Working with geosahpes and trying to resolve spatial relationships between
> them I came accross a big limitation when trying to solve the relationship
> between two geopolygons. This object does not expose the internal structure.
> In particular at some point, it is necessary to check if one polygon
> intersects the edges of the other polygon which currently is not possible as
> edges are not exposed.
> To be able to perform such operation it can be several options. The ones I
> can think of are:
> 1) Expose the edges of the polygon ( and probably the notable points for the
> edges) adding getters in the GeoPolygon interface. Easy to implement and
> leave users the responsability of coding the spatial relationship.
> 2) Extends GeoPolygon interface to extends geoarea and leave the object make
> the spatial relationship.
> 3) Extends GeoShape interface so all shapes can infer the spatial
> relationship with other GeoShapes.
> I might be bias as my interest is in 2d Shapes in the unit sphere and there
> might be some cases which what I propose cannot be implemented or are againts
> the aim of the library.
> What do you think?
> Cheers,
> Ignacio
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