Added by jgarnett, last edited by jgarnett on Aug 14, 2007  (view change)

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Semi-diameter of the longest axis of a reference ellipsoid. This equates to the semi-diameter of the reference ellipsoid measured in its equatorial plane.

Semi-mayor axis is often denoted: a

Found 8 search result(s) for Semi-major

Create MathTransforms (GeoTools)
Create MathTransforms Create a MathTransform from source and target CRS's: import org.opengis.referencing.operation.CoordinateOperationFactory; import org.opengis.referencing.crs.CoordinateReferenceSystem; import org.opengis.referencing.operation.MathTransform; import org.opengis.referencing.operation.CoordinateOperation; import org.geotools.referencing.FactoryFinder; ... CoordinateOperationFactory coFactory = FactoryFinder.getCoordinateOperationFactory(); CoordinateReferenceSystem sourceCRS = ... CoordinateReferenceSystem targetCRS = ... CoordinateOperation op = coFactory.createOperation(sourceCRS, targetCRS ...
Dec 18, 2004
Coordinate Transformation Parameters (GeoTools)
Coordinate Transformation Parameters The following is a list of the projection paramentes used in the Geotools2 referencing module. These try to follow the OGC Coordinate Transformation Services specification http://portal.opengeospatial.org/files/?artifactid=999 (OGC 01009), but this document only specified the parameters for a few ...
Jul 12, 2006
TransformData (GeoTools)
TransformData A simple demo to transform the geometries in a shapefile from the source coordinate system (CS) to a target coordinate system. Source and target CS's are given here as well know text (WKT) strings. The default output path is the users home directory ...
Dec 27, 2004
Coordinate Transformation Services for Geotools 2.0 (GeoTools)
Coordinate Transformation Services for Geotools 2.0 Introduction This is a tutorial for new users of the Geotools2 ctscoordtrans module. This tutorial is split into four sections: # MathTransforms #section1 used to transform points # CoordinateSystem Objects #section2 describe a coordinate system # Interfaces #section3 current ...
Jul 11, 2008
Introduction to Coordinate systems (GeoTools)
Introduction to Coordinate systems If you find errors or outdated sections, feel free to correct them. Contents Background #section0 OpenGIS #section1 EPSG #section2 GeoTools2 #section3 A structural comparison of coordinate system concepts #section4 Background Links Coordinate ...
Jul 11, 2008
IRC Logs - January 3rd (GeoTools)
IRC Logs January 3rd INFO Channel view for ?#geotools? opened. > YOU have joined #geotools Martin Hello Rueben rschulz hi martin rschulz I am frantically trying to finish off the oblique mercator I want ...
Jan 03, 2005 - All News
PDF File ISO18026-ISO19111compatibility.pdf (GeoTools > 3D Geometry and Rendering ideas)
Compatibility Study between ISO 18026 CD, Spatial Reference Model (SRM) and ISO 19111, Geographic information – Spatial referencing by coordinates. Introduction Study scope An assessment of the compatibility of the Spatial Reference Model and ISO 19111, Geographic information ...
PDF Document - 243 kb - Sep 20, 2005 - Download - All Attachments
How to add new projections (GeoTools)
How to add new projections Do you want to contribute to an exciting open source Java GIS project? Do you need to use a map projection that is not yet supported in Geotools referencing module? Do you have more ...
Feb 01, 2007