Projection - Revision history

Neteler: URLs updated

2019-12-30T16:37:47Z

URLs updated

← Older revision		Revision as of 16:37, 30 December 2019
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	Lists		Lists
	* [http://www.epsg.org/~~Geodetic.html~~ EPSG ~~Geodetic Parameter~~ Dataset]		* [http://www.epsg-registry.org/ EPSG Dataset]
	* [~~http~~://www.asprs.org/~~resources~~/grids/ ASPRS Grids and Datum]		* [https://www.asprs.org/asprs-publications/grids-and-datums ASPRS Grids and Datum]
	* Catalog of projections: http://proj4.org/projections		* [http://geotiff.maptools.org/proj_list/ Projections Transform List (PROJ4)]
	* [http://~~www~~.~~remotesensing~~.org~~/geotiff~~/proj_list/ Projections Transform List (PROJ4)]
	* [http://www.mapref.org/ MapRef - The Collection of Map Projections and Reference Systems for Europe]		* [http://www.mapref.org/ MapRef - The Collection of Map Projections and Reference Systems for Europe]
	* [http://www.crs-geo.eu Information and Service System for European Coordinate Reference Systems - CRS]		* [http://www.crs-geo.eu Information and Service System for European Coordinate Reference Systems - CRS]

Neteler: +Cartographical Map Projections

2017-06-21T09:45:33Z

+Cartographical Map Projections

← Older revision		Revision as of 09:45, 21 June 2017
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	View Map Projections		View Map Projections
	* http://map-projections.net/singleview.php		* http://map-projections.net/singleview.php
			* [http://www.progonos.com/furuti/MapProj/Normal/TOC/cartTOC.html Cartographical Map Projections] by Carlos A. Furuti

	Lists		Lists

Neteler: +View Map Projections http://map-projections.net/singleview.php

2016-09-12T12:02:57Z

+View Map Projections http://map-projections.net/singleview.php

← Older revision		Revision as of 12:02, 12 September 2016
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	= See also =		= See also =
	* In English:
	** Catalog of projections: http://~~proj4~~.~~org~~/~~projections~~		View Map Projections
	** [http://www.epsg.org/Geodetic.html EPSG Geodetic Parameter Dataset]		* http://map-projections.net/singleview.php
	** [http://www.asprs.org/resources/grids/ ASPRS Grids and Datum]
	** [http://www.remotesensing.org/geotiff/proj_list/ Projections Transform List (PROJ4)]		Lists
	** [http://www.mapref.org/ MapRef - The Collection of Map Projections and Reference Systems for Europe]		* [http://www.epsg.org/Geodetic.html EPSG Geodetic Parameter Dataset]
	** [http://www.crs-geo.eu Information and Service System for European Coordinate Reference Systems - CRS]		* [http://www.asprs.org/resources/grids/ ASPRS Grids and Datum]
	* In German language:		* Catalog of projections: http://proj4.org/projections
	** http://support.esri-germany.de/files/support/KoordinatensystemeInDeutschland.pdf		* [http://www.remotesensing.org/geotiff/proj_list/ Projections Transform List (PROJ4)]
	** http://support.esri-germany.de/files/support/KoordinatensystemeNachbarnDeutschlands.pdf		* [http://www.mapref.org/ MapRef - The Collection of Map Projections and Reference Systems for Europe]
	** http://support.esri-germany.de/files/support/KoordinatensystemeWeltweit.pdf		* [http://www.crs-geo.eu Information and Service System for European Coordinate Reference Systems - CRS]
	** [http://www.alectoria.at/content/view/17/1/ Projection parameters of Austria]
			Related to Germany:
			* http://support.esri-germany.de/files/support/KoordinatensystemeInDeutschland.pdf
			* http://support.esri-germany.de/files/support/KoordinatensystemeNachbarnDeutschlands.pdf
			* http://support.esri-germany.de/files/support/KoordinatensystemeWeltweit.pdf

			Related to Austria:
			* [http://www.alectoria.at/content/view/17/1/ Projection parameters of Austria]

	== Google Map Projection ==		== Google Map Projection ==

Neteler: /* Google Map Projection */

2016-09-12T12:00:42Z

Google Map Projection

← Older revision		Revision as of 12:00, 12 September 2016
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	== Google Map Projection ==		== Google Map Projection ==

			Also called "pseudo-mercator" - note that there are many issues with this projection! Handle with care.

	* http://www.sharpgis.net/2007/07/27/TheMicrosoftLiveMapsAndGoogleMapsProjection.aspx		* http://www.sharpgis.net/2007/07/27/TheMicrosoftLiveMapsAndGoogleMapsProjection.aspx
	* http://cfis.savagexi.com/articles/2006/05/03/google-maps-deconstructed		* http://cfis.savagexi.com/articles/2006/05/03/google-maps-deconstructed

	[[Category: FAQ]]		[[Category: FAQ]]

Neteler: * Catalog of projections: http://proj4.org/projections

2016-09-02T13:11:26Z

* Catalog of projections: http://proj4.org/projections

← Older revision		Revision as of 13:11, 2 September 2016
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	= See also =		= See also =
	* In English:		* In English:
			** Catalog of projections: http://proj4.org/projections
	** [http://www.epsg.org/Geodetic.html EPSG Geodetic Parameter Dataset]		** [http://www.epsg.org/Geodetic.html EPSG Geodetic Parameter Dataset]
	** [http://www.asprs.org/resources/grids/ ASPRS Grids and Datum]		** [http://www.asprs.org/resources/grids/ ASPRS Grids and Datum]

Neteler: cleanup with Map Reprojection content

2014-05-16T13:11:00Z

cleanup with Map Reprojection content

@@ Line 14: / Line 14: @@
 = Support Material =
 * Ready to use .PRJ files (in the usual WKT format) as used by recent versions of ESRI ArcView: [http://esri-germany.de/downloads/software/Koordinatensysteme.zip download]
 = See also =

Neteler: commands added

2014-05-10T23:27:33Z

commands added

← Older revision		Revision as of 23:27, 10 May 2014
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	Example: Box (polygon) created with {{cmd\|v.in.region}}:		Example: Box (polygon) created with {{cmd\|v.in.region}}:

			g.region n=60 s=40 w=0 e=30 res=10 -p
			v.in.region box_latlong_10deg

	[[Image:V proj input unsplit boundaries.png\|300px\|center\|thumb\|4 corner rectangle, LatLong (no further vertices)]]<br>		[[Image:V proj input unsplit boundaries.png\|300px\|center\|thumb\|4 corner rectangle, LatLong (no further vertices)]]<br>

	v.split -n ~~box~~ output=~~box_w_vertices~~ length=200 units=kilometers		v.split -n box_latlong_10deg output=box_latlong_10deg_vertices_200km length=200 units=kilometers

	[[File:V proj input split boundaries.png\|300px\|center\|thumb\|Split rectangle, LatLong]]<br>		[[File:V proj input split boundaries.png\|300px\|center\|thumb\|Split rectangle, LatLong]]<br>

	As obvious from the results, enough vertices must be present in the map to avoid (severe) distortion. Note that this applies likewise to "ogr2ogr" and QGIS:		As obvious from the results, enough vertices must be present in the map to avoid (severe) distortion. Note that this applies likewise to "ogr2ogr" and QGIS:

			# Test in OGR/QGIS
			v.out.ogr box_latlong_10deg dsn=box_latlong_10deg.shp
			ogr2ogr -t_srs epsg:3035 box_latlong_10deg_EU_LAEA.shp box_latlong_10deg.shp
			qgis box_latlong_10deg_EU_LAEA.shp
			# ... ops.

			# Properly reproject in GRASS GIS (when having used v.split):
			grass70 -c box_latlong_10deg_EU_LAEA.shp ~/grassdata/eulaea
			v.proj box_latlong_10deg location=latlong_wgs84 mapset=neteler
			v.proj box_latlong_10deg_vertices_200km location=latlong_wgs84 mapset=neteler

	[[File:V proj result.png\|300px\|center\|thumb\|Results in EU LAEA (EPSG: 3035)]]<br>		[[File:V proj result.png\|300px\|center\|thumb\|Results in EU LAEA (EPSG: 3035)]]<br>

Neteler: explain the need of enough vertices for vector map reprojection (with screenshots)

2014-05-10T22:54:28Z

explain the need of enough vertices for vector map reprojection (with screenshots)

@@ Line 15: / Line 15: @@
 = Support Material =
 * Ready to use .PRJ files (in the usual WKT format) as used by recent versions of ESRI ArcView: [http://esri-germany.de/downloads/software/Koordinatensysteme.zip download]
 = See also =

Neteler: /* Creation of a GRASS location */ point to Map Reprojection

2014-02-15T17:18:49Z

Creation of a GRASS location: point to Map Reprojection

← Older revision		Revision as of 17:18, 15 February 2014
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	* for the concept, see [[Location and Mapsets]]		* for the concept, see [[Location and Mapsets]]
	* for creating a location, see [[GRASS Location Wizard]]		* for creating a location, see [[GRASS Location Wizard]]
			* Reprojection, see [[Map Reprojection]]

	= Support Material =		= Support Material =

Neteler: +Creation of a GRASS location

2013-05-10T13:07:47Z

+Creation of a GRASS location

← Older revision		Revision as of 13:07, 10 May 2013
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	Read on in {{cmd\|projectionintro}}...		Read on in {{cmd\|projectionintro}}...

			== Creation of a GRASS location ==

			* for the concept, see [[Location and Mapsets]]
			* for creating a location, see [[GRASS Location Wizard]]

	= Support Material =		= Support Material =