Then custom shark-shaped markers in the same color scheme as the data on the map are added to the viz. The Sharknado viz legend is actually a scatterplot with the placement of the two sharks based on a calculated field for their X and Y values. You’ll need to use a separate worksheet to serve as your legend viz and to set up actions linking your ‘legend’ to the other worksheets on your dashboard. The sharks are color-encoded so that they can serve as a legend and filter for the map. You can save a lot of space, and emphasize the connections between vizzes on your dashboard by working in vizzes as legends, where the meaning of symbols are explained through another interactive object.įor instance, this visualization of Global Sharknado Threat by the Data Duo relies on a “shark legend” worksheet with profile images of two sharks. I’m a cartographer, so you’ll rarely hear me say outright: “You don’t need a legend.” (Hence the asterisk in this tip.) *You don’t need a legend if you can use the other vizzes in your dashboard to clarify chosen colors, sizes, shapes, and symbols. The color coordination between base map and data (as well as the introduction of great artistic detail in the “empty space” in the oceans) makes the map on this dashboard shine. The layers are zoom-level dependent and, when the dashboard zooms to city-scale data, we see a clean and simple map with just a bit of added local detail. This dashboard by Andre Oliveira, “Graffiti Around the World,” uses a simple base map with custom labeling. Consider adding relevant colors, layers, and text to your map, or design a custom base map with Mapbox. On the other hand, when a map needs to be the most important visualization on the dashboard, it will need something extra to make it pop. It looks clean and sharp, and provides just enough context using Tableau’s Light base map, which is adjusted to show only the land cover and streets. This dashboard by Ann Jackson explores urban forests in New York City. For most mapping use cases, this is a great place to start.
In Tableau, there are three basic map styles-light, dark, and normal-built in. Let’s check out some examples with the built-in Tableau styles and some custom Mapbox maps. You don’t want to end up with too much visual clutter that distracts readers from focusing on the data.
0 kommentar(er)
