length: 60 min
presenters: Kristian Ekenes, Jeremy Bartley
Mar. 11, 2020 2:30 p.m. - 3:30 p.m. Prerecorded and presented on YouTube.
Palm Springs Convention Center, Catalina/Madera
Watch the video presentation.
The following series of apps displays the same data multiple ways using visual variables.
This app renders outlines with no data values.
Please don’t do this. :)
This displays normalized data along a continuous color ramp. Much better.
This displays normalized data along a continuous diverging color ramp. This uses an Arcade expression to make the data values true percentages. The legend is much improved and easier to understand.
This visual shows how you can add create a simple predominance renderer using Arcade to show which of all competing numeric categories has the hightest value. Does the county have more Democrats, Republicans, or Independents?
This map shows the same predominance renderer with an opacity visual variable to indicate the strength of the predominant value for each feature. The higher the opacity, the stronger the dominant value.
This map adds a size variable to show the total count of the categories for each polygon. This removes the area problem introduced by choropleth maps and gives a better indication of which patterns really matter.
This sample demonstrates how to create a data exploration app using the Smart Mapping APIs. You can use the slider widgets to modify the visualization based on variables set by the developer.
This sample demonstrates how to add a size variable for changing icon sizes by scale. Generally, icons should be larger as you zoom in and smaller as you zoom out. Read the accompanying blog How and why to adjust symbol size by scale in web maps for more details.
This sample demonstrates how to add a size variable for changing outline sizes by scale. Generally, outlines should be thicker as you zoom in and thinner as you zoom out. Read the accompanying blog How and why to adjust symbol size by scale in web maps for more details.
This sample displays all the sliders available in the JS API available for exploring your data and changing the visualization of your layers.
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