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Locator Maps

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A year ago

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Do your readers know what/where you're mapping? Adding a small locator map can help to provide some geographic context. But in @TableauPublic, it is challenging to scale maps accurately... One option is to draw a shape in @QGIS... This is #RandomQGIStoTableauStuff #17! 😁
With @QGIS, we can create vector layers of points, lines & polygons. In this case, I want to create a temporary POLYGON layer. And then using the digitizing & shape digitizing tools, I can draw a rectangle e.g. around the central part of Ottawa & save this layer as a shapefile.
In @TableauPublic, you can then add this rectangle as another map layer, to be used as: 1) an extent indicator on the locator map; and 2) a guide to scale the main map. You can also switch the maps (small↔️large) to create an inset map. Thanks so much for reading! 🙏
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Dennis Kao

@professorkao

Ramblings about maps, data visualization, Tableau Public, QGIS, etc. Social Work Professor by Day Data Viz & Map Designer by Night