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Slightly more complex algorithms rely on local optimization to reach a local optimum of a placement evaluation function – in each iteration placement of a single label is moved to another position, and if it improves the result, the move is preserved. It performs reasonably well for maps that are not too densely labelled.
Map of the 37 Victorian counties. Cadastral divisions in Victoria are called counties, which are further subdivided into parishes and townships, for cadastral or land administration purposes. Cadastral divisions of county, parish and township form the basis for formal identification of the location of any piece of land in the state.
Two or more objects of known position are sighted, and the bearings recorded. Bearing lines are then plotted on a chart through the locations of the sighted items. The intersection of these lines is the current position of the vessel. Usually, a fix is where two or more position lines intersect at any given time.
MapGuide Open Source is a web-based map-making platform that enables users to quickly develop and deploy web mapping applications and geospatial web services. The application was introduced as open-source by Autodesk in November 2005, and the code was contributed to the Open Source Geospatial Foundation in March 2006 under the GNU LGPL .
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Module:Location map/data/Australia Victoria is a location map definition used to overlay markers and labels on an equirectangular projection map of Victoria in Australia. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.
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Position resection and intersection are methods for determining an unknown geographic position (position finding) by measuring angles with respect to known positions.In resection, the one point with unknown coordinates is occupied and sightings are taken to the known points; in intersection, the two points with known coordinates are occupied and sightings are taken to the unknown point.