Getting Started with Maps
Getting started with maps
- Note: The Four Elephant Seals CODAP example document shown in the video above can be found here.
- Display a map. Click the map menu item on the toolbar. If a table within CODAP contains mapping data (columns labeled as longitude and latitude), a map of the corresponding points will be displayed automatically.
- If the table does not contain mapping data, a Google API map opens, without CODAP data.
- Toggle between map styles (Oceans, Topo, or Streets) using the buttons in the map's upper right corner.
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If latitude and longitude data are included in a data set, CODAP can plot the data points on a map. | Drop an attribute (column header) from the table on the map to view the data mapped for that attribute. | To view data by frequency, click on the ruler menu on the right of the map, and select “Show grid.” |
- View data by frequency. Select the “Show Grid” tool from the ruler menu item to view data on the maps in coarse-grained bins. Use the slider displayed during grid view to adjust the size of the grid cells and discover new patterns.
- Note: Deselect “Points” from the ruler menu item to focus solely on the grid view.
- Drag and drop an attribute from a table onto the map to view mapped data for that attribute.
- To adjust the map's center point drag on the map. Click the dotted square at the map's upper right to enable a selection crosshairs. Use the eye menu to hide or view only the selected cases.
Maps with Boundaries
If a CODAP document contains map boundary data, CODAP will display the information on a map. For example, the graph on the right contains information about the Total Population in the United States.
- Display maps with geographic boundaries. CODAP can also create maps with geographic boundaries if the boundary information is included in a data set, like the map above and to the right. To do so, drag an attribute onto the map.
An example CODAP document with a map with boundaries can be found here.
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