Hi, have you checked this guides?
http://orientdb.com/docs/last/Spatial-Index.html http://orientdb.com/spatial-module-orientdb-2-2/ Il giorno martedì 15 novembre 2016 14:43:08 UTC+1, VIKRAM SINGH CHOUHAN ha scritto: > > Hi All, > > I am working on an Open Source GIS project and new to Spatial Reference > systems. > > As we know the new Lucene Plugin for OrientDB (version 2.2) is enhanced > with Support of Complex Geometry like line, polygon etc. > I am exploring on adding a new spatial reference system native support for > storage and retrieval of spatial data in lucene Plugin for OrientDB. > > Currently Lucene Engine supports well known WSG_84 reference system. > I would like to add a native support for a new SRS(Spatial Reference > System) i.e. EPSG:27700 and other. i don't want to go with SRS conversions > using external library like proj4. > > As per my analysis for the support added in Lucene for WSG_84. I found > datum configuration parameters in PlanetModel class file like : > > WGS84_MEAN = 6371009.0; > WGS84_POLAR = 6356752.314245; > WGS84_EQUATORIAL = 6378137.0; > PlanetModel WGS84 = new PlanetModel (1.0011188180710464, > 0.9977622562211103); > > which are used in Mathematical evaluations for calculating Flattering of > earth, North Pole, South Pole geographical reference Points etc. > > I am suspecting this configuration are specific to WSG_84 Spatial > reference system only. Is my understanding correct? > And similarly, there will be new set of configuration needs to be defined > for other reference system to achieve a native support in the DB storage > and retrieval of GeoSpatial Data. > Or WSG_84 is a base reference system for all the other Reference Systems > and conversion has to happen? > > Any suggestion will be very helpful. > Thanks in Advance. > > Regards, > vikram > > > > > > > -- --- You received this message because you are subscribed to the Google Groups "OrientDB" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
