You will learn: how to use the Map Viewer to style layers and create meaningful visualizations.
Maps are powerful because they tell stories through data visualization. In web mapping, a developer has to make decisions about what styles, symbology and visualizations to use to maximize impact and best convey the desired narrative. Since apps can consume web maps, you can use the ArcGIS Online Map Viewer to quickly edit layer styles on the fly and create new visualizations without rewriting apps or code. The Map Viewer provides styling suggestions (Smart Mapping) when you load an unstyled layer, and then you can use the Change Style tool to make changes that are immediately reflected in the browser and stored in the web map itself.
In this lab, you'll use the Map Viewer to edit styles for the Trailheads, Trails and Parks and Open Space layers from the Los Angeles GeoHub.
Navigate to the LA Parks and Trails Map (unstyled) web map.
Click Save > Save As to save your own copy of the map.
In the top bar, click + Add > Search for layers:
World Topographic Vector
Click World Topographic Map > Use as basemap > DONE ADDING LAYERS to select the layer.
In Content, click Parks and Open Space > Change Style and select the following:
The default color ramps are a good starting point, but you can always click on the symbol to manually select the desired color and style. A nice color set for the parks data would be:
Local Park: Light Purple
Natural Areas: Light Green
Regional Open Space: Light Blue
Reginal Recreation Park: Light Red
Click Trails > Change Style and select the following:
Click Trails - Trails 0 > More Options ... > Rename and change the name to:
Trails > OK.
Click TrailHeads > Change Style and select the following:
Show location only
National Park Service>
Click Boundary > More Options... > Remove Popup.
Click Legend to see the styled layers.
Save your map.
Your styled web map should look something like this.
Use the Map Viewer to create visually stunning, useful maps based on real data.
Use the Map Viewer to interactively create points, lines, and polygons.
Use the Map viewer to create meaningful pop-ups for layers.
Load your data into the cloud (xls, gpx, GeoJSON, shapefiles).
Use the Map Viewer to find layers and create a new web map.
Use the Scene Viewer to find layers and create a new web scene.
Define and populate datasets in the cloud for your apps.
Use the Map Viewer analysis tools to create spatial queries and extract features.