AfricaEvents27June2009 - Revision history

Wiki-Brendonwp: /* Advanced symbolisation - the renderer types, labelling and map actions - Brendon */

2009-06-26T23:09:11Z

Advanced symbolisation - the renderer types, labelling and map actions - Brendon

2009-06-26T22:37:46Z

Advanced analysis with QGIS

2009-06-26T22:09:35Z

Projection basics - Gavin

2009-06-26T21:57:20Z

Map Production - Gavin

2009-06-26T21:50:20Z

Show off session

2009-06-26T21:47:57Z

Possible Extras

2009-06-26T21:40:42Z

General

2009-06-26T21:00:47Z

What you can do next

2009-06-26T20:59:09Z

General

2009-06-26T20:57:32Z

After this workshop?

@@ Line 277: / Line 277: @@
 The noise from the freeway will travel further than the noise from a suburban
-road. Luckily, we already have distances entered against types of road in the Roads map layer.
+road. Luckily, we already have separated the freeway from the main roads and others.
 * To start the analysis, go to the modules tree and select the module Buffer, under:
@@ Line 285: / Line 283: @@
    Vector -> Spatial analysis
-Another tab will open to allow you to run the Buffer module.
+* Another tab will open to allow you to run the Buffer module.
-* Select the map layer Roads as input.
+* Enter name of output as '''freeway_buffer'''
-......  go to Linux for other detail:
+Repeat for '''main_roads''', with a distance of 200.  Make the output name '''main_roads_buffer'''.
-* Then press Run.
+* Then use v.patch to merge the two map layers.  Do not check either of the boxes at the top of the dialog.
 The progress bar at the bottom will show you how much longer you have to wait.  When it is finished, click on View output to show the result in QGIS.

← Older revision		Revision as of 22:09, 26 June 2009
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	==Projection basics - Gavin==		==Projection basics - Gavin==
		+
		+	To get by in GIS you have to get to grips with Projections, even if you don't understand them completely. Layers don't overlay properly or are not even in the same place, or you need data in a specific coordinate system for a certain cartographic effect. Or if you are doing analysis, you need your data in a planar 'real-world' coordinate system in units such as metres (you can't work out an area in 'square degrees').
		+
		+	* What projection settings are important?
		+	** We'll look at the projection properties of some layers in your project
		+	** and of QGIS generally: Edit>Options>CRS and Edit>Custom CRS
		+	** and of your project: File>Project properties>Coordinate Reference System (or click the 'projector' icon in the bottom right corner)
		+
		+	We'll actually project a layer (change its CRS). We'll do this by doing a 'save as shapefile' to the layer. Then we'll bring it back in and see how QGIS can 'project on the fly' to draw it with other layers that are in different projections.

	== Map Production - Gavin ==		== Map Production - Gavin ==

@@ Line 167: / Line 167: @@
 *Export an image
-*Use the Map Composer
+Goto File>Save as Image. You can choose to save a png or jpg of your project view.
 ==Data capture - editing local and PostGIS datasources - Tim==

@@ Line 395: / Line 395: @@
 Tell us what else you'd like to try.
-== Show off session ==
+== Possible Extras ==
+*Advanced spatial analysis ''without'' GRASS: Carson Farmer's plugins with R, etc - Gavin
-Here we can do some whizz bang demo stuff that we don't have time to do in  workshop format but that will give you some hints as to what else can be achieved.
+*Introduction to the Python console
+*The Python API
-e.g. Terrain modelling and drapes.
+*Show off session: Here we can do some whizz bang demo stuff that we don't have time to do in  workshop format but that will give you some hints as to what else can be achieved. e.g. Terrain modelling and drapes.
 ==General==

@@ Line 415: / Line 415: @@
 Join the [http://www.qgis.org/en/community.html QGIS community]
-== Possible Extras ==
 ==Your assessment of the workshop==

← Older revision		Revision as of 21:40, 26 June 2009
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	Questions and answers. Resources. Possibly some in-depth examples based on frequent questions. What would you like to see at future workshops?		Questions and answers. Resources. Possibly some in-depth examples based on frequent questions. What would you like to see at future workshops?

		+	=== What you can do next===

		+	Install QGIS at home or work on Windows, Mac or Linux and start playing.
		+
		+	Read the manual.
		+
		+	Check out these free QGIS tutorials and courses: <nowiki>http://www.osgeo.org/educational_content?filter0=&filter1=qgis&filter2[]=English&filter3=</nowiki>
		+
		+	Join the [http://www.qgis.org/en/community.html QGIS community]

	== Possible Extras ==		== Possible Extras ==

← Older revision		Revision as of 21:00, 26 June 2009
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	Questions and answers. Resources. Possibly some in-depth examples based on frequent questions. What would you like to see at future workshops?		Questions and answers. Resources. Possibly some in-depth examples based on frequent questions. What would you like to see at future workshops?

−	~~=== What you can do next===~~

−	~~Install QGIS at home or work on Windows, Mac or Linux and start playing.~~
−
−	~~Read the manual.~~
−
−	~~Check out these free [http://www.osgeo.org/educational_content?filter0=&filter1=qgis&filter2[]=English&filter3= QGIS tutorials and courses].~~
−
−	~~Join the [http://www.qgis.org/en/community.html QGIS community]~~

	== Possible Extras ==		== Possible Extras ==

@@ Line 403: / Line 403: @@
 ==General==
-Questions and answers.  What you can do next.  Resources.  Possibly some in-depth examples based on frequent questions.  What would you like to see at future workshops?
+Questions and answers. Resources.  Possibly some in-depth examples based on frequent questions.  What would you like to see at future workshops?
 == Possible Extras ==

← Older revision		Revision as of 20:57, 26 June 2009
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	Surveys and Mapping, Demarcation Board, OpenStreetMap, GPS, etc. Check out [[South_African_Geodata]]		Surveys and Mapping, Demarcation Board, OpenStreetMap, GPS, etc. Check out [[South_African_Geodata]]

−	~~== After this workshop? ==~~

−	~~Install QGIS at home or work on Windows, Mac or Linux and start playing.~~
−
−	~~Read the manual.~~
−
−	~~Check out these free [http://www.osgeo.org/educational_content?filter0=&filter1=qgis&filter2[]=English&filter3= QGIS tutorials and courses].~~
−
−	~~Join the [http://www.qgis.org/en/community.html QGIS community]~~

	[[Category:Africa]]		[[Category:Africa]]