Difference between revisions of "Creating service area in QGIS"
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| − | == '''Introduction''' == |
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| − | Network analyst tools |
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| − | comparing the in program tool to a plug in basic how they are different |
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| − | == '''Data''' == |
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| − | '''Finding and downloading data''' |
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| − | For this tutorial we will be using only open data and open sourced programs. You will need to have QGIS installed to perform this tutorial. All data will come from [https://open.ottawa.ca/ Open Ottawa Catalogue]. The files you will need for this tutorial are: |
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| − | once all the data is downloaded create a folder in you computer to move all your data files to. Name this new folder something relevant to the tutorial so it is easy to find like NetworkAnalysis_ServiceAreasTutorial. This is to ensure you can easily all the files needed. |
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| − | '''uploading data into QGIS''' |
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| − | <gallery> |
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| − | Tutorial_inputdata.PNG| |
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| − | </gallery> |
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| − | === '''Part 1: QGIS Network analyst tool''' === |
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| − | What is the network analyst tool how does it work |
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| − | |||
| − | ==== Creating Service Areas ==== |
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| − | Network data (deleting some roads) |
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| − | <gallery> |
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| − | Deleteroads.PNG| |
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| − | Deleteroads2.PNG| |
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| − | </gallery> |
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| − | Finding Network analyst tools |
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| − | <gallery> |
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| − | Networkanalyst_tool.PNG| |
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| − | </gallery> |
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| − | setting Network analyst menus |
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| − | output |
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| − | Creating polygons around them |
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| − | ?dissolve |
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| − | output |
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| − | == '''Part 2: Valhalla Network Analyst tool''' == |
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| − | What is the Valhalla plug in how does it work |
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| − | ==== Plugins ==== |
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| − | Finding plug ins why were using them |
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| − | <gallery> |
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| − | basemapplugin.PNG |QuickMapServices Plugin |
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| − | ValhallaPlugin.PNG |Valhalla Plugin |
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| − | </gallery> |
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| − | ==== Creating Service Areas ==== |
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| − | finding Valhalla |
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| − | <gallery> |
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| − | Findingvalhalla.PNG| |
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| − | </gallery> |
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| − | creating an account and getting API |
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| − | <gallery> |
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| − | API.png| |
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| − | </gallery> |
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| − | Setting up the menus |
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| − | <gallery> |
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| − | valhalla.PNG| |
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| − | </gallery> |
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| − | output |
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| − | save as |
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| − | dissolve together |
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| − | <gallery> |
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| − | Dissolve1.PNG| |
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| − | </gallery> |
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| − | trouble shoot fix geometry |
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| − | set symbology |
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| − | <gallery> |
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| − | symbology4.PNG| |
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| − | </gallery> |
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| − | output |
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| − | == '''Conclusion''' == |
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| − | comparing out puts from both tools |
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| − | strengths and weaknesses from both tools |
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| − | uses for these tools and their outputs |
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