1. If other displays and data are already loaded, select the Edit→Remove All Displays and Data menu item or the icon in the toolbar to clear them out.
2. First create two layout models for this exercise.
   • Open up the Layout Model Editor from the Tools→Layout Models menu.
   • Create a Shape Symbol with the shape as Sphere, double click the symbol to bring up the Properties Dialog and set the Foreground Color as blue and Scale Size 0.2, and save as EarthQuake1.
   • Create another Sphere shape, with Foreground Color set as Clear, Scale Size By 0.2, in the Color By tab, set Map Value of as magnitude, and set Data Range 0 and 9, in the Scale Size tab, set Scale By Parameter as magnitude, set Data Range 0 and 9, and set Scale By Factor 0.3 and 3. Now save this model as EarthQuake2.
3. Load Japan historical earthquake point data.
   • Open the Data Choosers.
   • In the Data Chooser tree click on the Files node.
   • Go to the point data directory: /data/idv/point/.
   • Select IEB-Sendai-region-3000quakes-before-1Mar2011-mags-ge-5.nc
   • Under the Data Source Type pulldown menu, select "Netcdf Point Data files"
   • Press Add Source
   • Bring up the Properties window, and set the Bin Size to 5 years.
   • In the Fields panel select Point Data.
   • Select the Layout Model EarthQuake1.
   • In the Displays select Point Data List and press Create Display
4. Modify the displayed setting.
   • In the Displays control window, under the Layout tab, uncheck the Declutter.
   • Select the Times tab, click the Multiple, and change the Range to be Start from data and End from animation.
5. Load 2011 Japan earthquake point data .
   • Load another dataset in the directory IRIS-EB-quakes-Japan-01Mar2011-1201-16Mar2011-530quakes.nc.
   • Set the Bin Size to be 5 hours.
   • Select the Layout Model EarthQuake2.
   • Create Display and repeat the display setting in the previous step.
6. Start the Animation.

Unidata IDV Workshop for version 6.2u2 > Accessing and Displaying Data > Point Observations