QGIS ArcGIS REST API Connector Plugin - Versionsgeschichte

Stefan: Weiterleitung nach ArcGIS REST API Connector QGIS Plugin erstellt

2015-05-30T23:11:55Z

Weiterleitung nach ArcGIS REST API Connector QGIS Plugin erstellt

← Nächstältere Version		Version vom 30. Mai 2015, 23:11 Uhr
Zeile 1:		Zeile 1:
	[[~~Datei:Quiz_QGIS_Plugin_Icon.png\|right\|\|\|]]~~		#redirect [[ArcGIS REST API Connector QGIS Plugin]]
	~~[[QGIS]]-Plugin '''~~ArcGIS REST API Connector~~''' (beta) which reads from [[ArcGIS]] Online and ArcGIS Server and the "Esri Open Data Initiative Portal Software".~~

	* A project by [[Geometa Lab]] HSR
	* Project Lead: Stefan Keller
	* Authors/Developers: Tobias Schmitz, Rafael Krucker and Dennis Ligtenberg


	~~== About ==~~

	QGIS-Plugin ~~'''ArcGIS REST API Connector''' which reads from ArcGIS Online and ArcGIS Server and the "Esri Open Data Initiative Portal Software".~~

	~~Currently reading "Feature Services" (similar to [[WFS]] but proprietary) and "Map Services" (kind of [[WMTS]]) are supported.~~

	~~This plugin focusses on '''reading''' so-called '''"Maps"''' accessible without restrictions over the Internet by interpreting JSON (JavaScript Object Notation) and image output formats.~~

	~~Functions (similar to WFS) "Add ArcGIS REST Layer...":~~
	* connect/new/edit/delete connection
	* load/save connections
	* filter layer list
	* select layer (then download)

	~~Implementation details of Feature Service:~~
	* maxRecordCount - currently maxRecordCount is ignored.
	* Query - currently there's no query functionality.
	* outSR - currently geometry is returned as default well-known ID "GCS_WGS_1984".

	~~Map services expose a set of tiled images, read-only, working with the default data frame of the published map document on the server.~~

	~~== Available ArcGIS Services ==~~

	* http://sampleserver1.arcgisonline.com/arcgis/rest/services
	* http://sampleserver6.arcgisonline.com/arcgis/rest/services
	* http://services.arcgisonline.com/arcgis/rest/services

	~~== Installation and Source Code ==~~

	~~Install from inside [[QGIS]] as Python plugin.~~
	* Published in QGIS plugin directory: http://plugins.qgis.org/plugins/connector/
	* Source Code on [https://github.com/geometalab/ArcGISConnector-QGIS-Plugin github]

	~~Version History:~~
	* 0.1.0 - First experimental version for broader testing purposes released 11.4.2014 based on QGIS Version 2.4.
	* 0.1.1 - Current experimental version on plugins.qgis.org tested on QGIS Version 2.6.

	~~== Support ==~~

	~~Project notes, issues, bugs and feature requests: See [https://github.com/geometalab/ArcGISConnector-QGIS-Plugin github] (for older notes see tab "Diskussion").~~

	~~== Possible Enhancements ==~~

	According to Esri's specification of [http://resources.arcgis.com/en/help/arcgis-rest-api/index.html#/The_ArcGIS_REST_API/02r300000054000000/ "ArcGIS REST API"]], there are many services: ''... With ready-to-use basemaps, reference layers, and so on, you can quickly add context or a backdrop to your local or worldwide data. Some ArcGIS Online maps are thematic, which may provide all the information you need to present in your application''.

	Future improvements may be made to Feature Service, Map Service and additionally to a new Image Service, which provides access to raster data similar to Map Services. Both Map and Image services return raster images mosaicked on the fly or WMTS whereas the main difference is that Map Services are read-only while Image Service include an API for editing and uploading (which is out-of-scope of this plugin).

	~~General improvements may include~~
	* Authentification (with OAuth 2.0)
	* Image Service.
	* HttpProxy ([https://github.com/geometalab/ArcGISConnector-QGIS-Plugin/issues/3 issue #3])

	~~Future improvements of Feature Service may include:~~
	* Paging (maxRecordCount) See [https://github.com/geometalab/ArcGISConnector-QGIS-Plugin/issues/6 issue #6]
	* Local Feature Cache (see [http://resources.arcgis.com/en/help/main/10.2/index.html#/Managing_your_local_display_cache/006600000180000000/])
	* Query and Query Related Records
	* Dealing with compressed http content?
	* Reading/showing "Services Directory"

	~~Future improvements of Map Service may include:~~
	* Feature (aka OGC WMS GetFeatureInfo?)
	* Image (Marker)?
	* Legend (aka WMS GetLegend)
	* Map Tile
	* WMTS

	~~== Feasibility analysis and solution approach Carmelo Schumacher ==~~
	~~Because of the limited functionality python plugins have, only a very basic set of features can be implemented.~~
	~~The best solution is to write an own data provider - but this would require the plugin to be written in C++.~~

	~~FeatureServer->FeatureLayer:~~
	~~(http://resources.arcgis.com/en/help/arcgis-rest-api/#/Query_Feature_Service/02r3000000w5000000/)~~
	~~Use OGR as the dataprovider for a QgsVectorLayer with datasource URL to FeatureServer with query:~~
	~~/query?where=objectid+%3D+objectid&outfields=*&f=json~~

	~~MapServer->FeatureLayer:~~
	~~(http://resources.arcgis.com/en/help/arcgis-rest-api/#/Query_Map_Service_Dynamic_Layer/02r3000000z6000000/)~~
	Because MapServer-Queries are restricted by a limit on the number of features included in the feature set response (max 1000), /query?where=objectid+%3D+objectid&outfields=*&f=json will return only 1000 features max. To overcome this restriction, multiple service calls are needed to populate the whole feature-list.

	~~Possible Solution:~~
	* 1 Check if layer has more than 1000 features (using query parameter returnCountOnly=true).
	* 2a If not, same procedure as featureServer->FeatureLayer -> stop
	* 2b If yes use OGR Virtual Format (http://www.gdal.org/drv_vrt.html) to join all the service calls needed, to retreive all features (use union layer). Populate the xml first and add to OGR provider. The different queries can be generated by getting all the id's of all the features first (returnIdsOnly=true) and include the id's in the query (max 1000 / query).

	~~MapServer->RasterLayer:~~
	* OGR can handle raster queries (http://www.gdal.org/frmt_wms.html search for ArcGIS REST API (GDAL 2.0 and later)):

	$ gdallocationinfo -wgs84 "<GDAL_WMS><Service name=\"AGS\"><ServerUrl>http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StateCityHighway_USA/MapServer</ServerUrl><BBoxOrder>xyXY</BBoxOrder><SRS>3857</SRS></Service><DataWindow><UpperLeftX>-20037508.34</UpperLeftX><UpperLeftY>20037508.34</UpperLeftY><LowerRightX>20037508.34</LowerRightX><LowerRightY>-20037508.34</LowerRightY><SizeX>512</SizeX><SizeY>512</SizeY></DataWindow></GDAL_WMS>" -75.704 39.75

	~~Only bounding box need to be updated on every pan (and zoom?).~~

	~~[[Kategorie:QGIS-Plugin]] [[Kategorie:QGIS]] [[Kategorie:Python]] [[Kategorie:Software]] [[Kategorie:ArcGIS~~]]

Stefan: /* Feasibility analysis and solution approach Carmelo Schumacher */

2015-05-30T23:01:04Z

Feasibility analysis and solution approach Carmelo Schumacher

← Nächstältere Version		Version vom 30. Mai 2015, 23:01 Uhr
Zeile 87:		Zeile 87:

	Possible Solution:		Possible Solution:
	1 Check if layer has more than 1000 features (using query parameter returnCountOnly=true).		* 1 Check if layer has more than 1000 features (using query parameter returnCountOnly=true).
	2a If not, same procedure as featureServer->FeatureLayer -> stop		* 2a If not, same procedure as featureServer->FeatureLayer -> stop
	2b If yes use OGR Virtual Format (http://www.gdal.org/drv_vrt.html) to join all the service calls needed, to retreive all features (use union layer). Populate the xml first and add to OGR provider. The different queries can be generated by getting all the id's of all the features first (returnIdsOnly=true) and include the id's in the query (max 1000 / query).		* 2b If yes use OGR Virtual Format (http://www.gdal.org/drv_vrt.html) to join all the service calls needed, to retreive all features (use union layer). Populate the xml first and add to OGR provider. The different queries can be generated by getting all the id's of all the features first (returnIdsOnly=true) and include the id's in the query (max 1000 / query).


	MapServer->RasterLayer:		MapServer->RasterLayer:
	OGR can handle raster queries (http://www.gdal.org/frmt_wms.html search for ArcGIS REST API (GDAL 2.0 and later)):		* OGR can handle raster queries (http://www.gdal.org/frmt_wms.html search for ArcGIS REST API (GDAL 2.0 and later)):

	gdallocationinfo -wgs84 "<GDAL_WMS><Service name=\"AGS\"><ServerUrl>http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StateCityHighway_USA/MapServer</ServerUrl><BBoxOrder>xyXY</BBoxOrder><SRS>3857</SRS></Service><DataWindow><UpperLeftX>-20037508.34</UpperLeftX><UpperLeftY>20037508.34</UpperLeftY><LowerRightX>20037508.34</LowerRightX><LowerRightY>-20037508.34</LowerRightY><SizeX>512</SizeX><SizeY>512</SizeY></DataWindow></GDAL_WMS>" -75.704 39.75		$ gdallocationinfo -wgs84 "<GDAL_WMS><Service name=\"AGS\"><ServerUrl>http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StateCityHighway_USA/MapServer</ServerUrl><BBoxOrder>xyXY</BBoxOrder><SRS>3857</SRS></Service><DataWindow><UpperLeftX>-20037508.34</UpperLeftX><UpperLeftY>20037508.34</UpperLeftY><LowerRightX>20037508.34</LowerRightX><LowerRightY>-20037508.34</LowerRightY><SizeX>512</SizeX><SizeY>512</SizeY></DataWindow></GDAL_WMS>" -75.704 39.75

	Only bounding box need to be updated on every pan (and zoom?).		Only bounding box need to be updated on every pan (and zoom?).

	[[Kategorie:QGIS]] [[Kategorie:Python]] [[Kategorie:Software]] [[Kategorie:ArcGIS]]		[[Kategorie:QGIS-Plugin]] [[Kategorie:QGIS]] [[Kategorie:Python]] [[Kategorie:Software]] [[Kategorie:ArcGIS]]

Stefan am 30. Mai 2015 um 22:58 Uhr

2015-05-30T22:58:05Z

← Nächstältere Version		Version vom 30. Mai 2015, 22:58 Uhr
Zeile 1:		Zeile 1:
			[[Datei:Quiz_QGIS_Plugin_Icon.png\|right\|\|\|]]
	[[QGIS]]-Plugin '''ArcGIS REST API Connector''' (beta) which reads from [[ArcGIS]] Online and ArcGIS Server and the "Esri Open Data Initiative Portal Software".		[[QGIS]]-Plugin '''ArcGIS REST API Connector''' (beta) which reads from [[ArcGIS]] Online and ArcGIS Server and the "Esri Open Data Initiative Portal Software".

Stefan: /* Feasibility analysis and solution approach Carmelo Schumacher */

2015-05-29T00:44:39Z

Feasibility analysis and solution approach Carmelo Schumacher

← Nächstältere Version		Version vom 29. Mai 2015, 00:44 Uhr
Zeile 98:		Zeile 98:
	Only bounding box need to be updated on every pan (and zoom?).		Only bounding box need to be updated on every pan (and zoom?).

	[[Kategorie:QGIS]] [[Kategorie:Software]] [[Kategorie:ArcGIS]]		[[Kategorie:QGIS]] [[Kategorie:Python]] [[Kategorie:Software]] [[Kategorie:ArcGIS]]

CSchumac: /* Feasibility analysis and solution approach Carmelo Schumacher */

2015-04-29T11:41:36Z

Feasibility analysis and solution approach Carmelo Schumacher

← Nächstältere Version		Version vom 29. April 2015, 11:41 Uhr
Zeile 73:		Zeile 73:

	== Feasibility analysis and solution approach Carmelo Schumacher ==		== Feasibility analysis and solution approach Carmelo Schumacher ==
	Because of the limited functionality python plugins have, only a very basic set of features can be implemented. The best solution is to write an own data provider - but this would require the plugin to be written in C++.		Because of the limited functionality python plugins have, only a very basic set of features can be implemented.
			The best solution is to write an own data provider - but this would require the plugin to be written in C++.

	FeatureServer->FeatureLayer:		FeatureServer->FeatureLayer:

CSchumac am 29. April 2015 um 11:41 Uhr

2015-04-29T11:41:21Z

@@ Zeile 71: / Zeile 71: @@
 * Map Tile
 * WMTS
 [[Kategorie:QGIS]] [[Kategorie:Software]] [[Kategorie:ArcGIS]]

Stefan: /* Installation and Source Code */

2015-04-03T13:23:41Z

Installation and Source Code

← Nächstältere Version		Version vom 3. April 2015, 13:23 Uhr
Zeile 40:		Zeile 40:

	Version History:		Version History:
	* 0.1.0 - First version for broader testing purposes released 11.4.2014 based on QGIS Version 2.4.		* 0.1.0 - First experimental version for broader testing purposes released 11.4.2014 based on QGIS Version 2.4.
	* 0.1.1 - Current version on plugins.qgis.org tested on QGIS Version 2.6.		* 0.1.1 - Current experimental version on plugins.qgis.org tested on QGIS Version 2.6.

	== Support ==		== Support ==

Stefan am 18. März 2015 um 23:32 Uhr

2015-03-18T23:32:06Z

@@ Zeile 33: / Zeile 33: @@
 * http://services.arcgisonline.com/arcgis/rest/services
-== Limits ==
+== Installation and Source Code ==
 According to Esri's specification of [http://resources.arcgis.com/en/help/arcgis-rest-api/index.html#/The_ArcGIS_REST_API/02r300000054000000/ "ArcGIS REST API"]], there are many services: ''... With ready-to-use basemaps, reference layers, and so on, you can quickly add context or a backdrop to your local or worldwide data. Some ArcGIS Online maps are thematic, which may provide all the information you need to present in your application''.
@@ Zeile 57: / Zeile 71: @@
 * Map Tile
 * WMTS
 [[Kategorie:QGIS]] [[Kategorie:Software]] [[Kategorie:ArcGIS]]

Stefan: /* Limits */

2015-03-18T23:29:59Z

Limits

← Nächstältere Version		Version vom 18. März 2015, 23:29 Uhr
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	* Authentification (with OAuth 2.0)		* Authentification (with OAuth 2.0)
	* Image Service.		* Image Service.
	* HttpProxy ([https://github.com/geometalab/ArcGISConnector-QGIS-Plugin/issues/3 issue])		* HttpProxy ([https://github.com/geometalab/ArcGISConnector-QGIS-Plugin/issues/3 issue #3])

	Future improvements of Feature Service may include:		Future improvements of Feature Service may include:

Stefan: /* Limits */

2015-03-18T23:29:39Z

Limits

← Nächstältere Version		Version vom 18. März 2015, 23:29 Uhr
Zeile 45:		Zeile 45:

	Future improvements of Feature Service may include:		Future improvements of Feature Service may include:
	* Paging (maxRecordCount)		* Paging (maxRecordCount) See [https://github.com/geometalab/ArcGISConnector-QGIS-Plugin/issues/6 issue #6]
	* Local Feature Cache (see [http://resources.arcgis.com/en/help/main/10.2/index.html#/Managing_your_local_display_cache/006600000180000000/])		* Local Feature Cache (see [http://resources.arcgis.com/en/help/main/10.2/index.html#/Managing_your_local_display_cache/006600000180000000/])
	* Dealing with compressed http content		* Query and Query Related Records
			* Dealing with compressed http content?
	* Reading/showing "Services Directory"		* Reading/showing "Services Directory"
	* Query and Query Related Records

	Future improvements of Map Service may include:		Future improvements of Map Service may include: