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.
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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