Hi OpenJumpers, a new version of my Measure Extension for OpenJUMP is available at GeoArbores SorceForge site: http://sourceforge.net/projects/opensit/files/Openjump/PlugIn/MeasureExtension/
This new version is more advanced than previous ones and is re-arranged as a toolbox, available on PlugIn menu With this new version you can: a) draw to get coordinates, length, angles, azimuth, perimeter or area. An option allows to save progressive measurements. Any measurements can be done also in geographic coordinates(*) (currently only EPSG4326). c) get measurement information from selected features. This option allows to get: length from linestring, area and perimeter from polygon and multipolygon, coordinates from points features d) automatically convert, during the measurements, between SI units (meter and kilometer) and non SI units (International foot, US survey foot, yard, mile, nautical mile) e) display a scale on the workbench also geographic coordinates f) zoom to scale also in geographic coordinates Download MeasureToolbox_11.jar file directly here: http://sourceforge.net/projects/opensit/files/Openjump/PlugIn/MeasureExtension/MeasureToolbox_11.jar/download A small help documentation is available, in English, as PDF file: http://sourceforge.net/projects/opensit/files/Openjump/PlugIn/MeasureExtension/Measure%20toolbox_11.pdf/download Any comment is welcome at OpenJUMP users and developers list Giuseppe Aruta (*)Length is calculated using Thaddeus Vicenty's inverse formula (T. Vincenty , 1975, Direct and Inverse solutions of geodesics of the ellipsoid with application of nasted equations, Survey Review, XXII, 176, May 1975). Area and angles are calculated following Robert. G. Chamberlain and William H. Duquette, "Some Algorithms for Polygons on a Sphere" , NASA JPL Publication 07-03, June 2007 and using Earth mean axis = 6371008.7714.
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