Bug #2503: Metacat Servlet action=spatial_query returns incorrect results - Metacat - Ecoinformatics Redmine

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Bug #2503

closed

Metacat Servlet action=spatial_query returns incorrect results

Added by Matthew Perry over 18 years ago. Updated over 18 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Matthew Perry

Category:

metacat

Target version:

1.6

Start date:

07/31/2006

Due date:

% Done:

Estimated time:

Bugzilla-Id:

2503

Description

It appears that the metacat spatial query (metacat?action=spatial_query) does not return correct results. Based on a few test cases, it appears that only spatial queries which intersect the north-west corner of the geographic coverage return a correct result. This indicates a rather serious error in the spatial intersection logic.

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Updated by Matthew Perry over 18 years ago

Test cases can be found at http://pmark.msi.ucsb.edu/spatial_query_bug.pdf

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Updated by Matthew Perry over 18 years ago

Fixed:

1) handleSpatialQuery called createSpatialquery w/ parameters in the wrong order

2) createSpatialQuery's logic was wrong; changed to match the logic specified in AdvancedSearch.java:

/*
  * Else, if the user does not select the boundaryContained checkbox, use the
  * following logical expression. N, S, E, and W are the boundaries of the
  * bounding box, while N', S', E', and W' are the boundaries specified in a
  * given EML document:
  *              (N' > S) && (S' < N) && (E' > W) && (W' < E)
   */

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