Unidata IDV Workshop for version 6.3 > Accessing and Displaying Data > Point Observations
3.7.2 Subsetting Point Data
You can do time binning and spatial subsetting for point data.
- If other displays and data are already loaded, select the
menu item
or the icon in the toolbar to clear them out.
- Load in the file
/data/idv/point/madis.nc
.
Make sure you the Data Source type select "netCDF Point Data files"
- Create a Point Data Plot. Say Yes to seeing all of the times.
Notice the number of times? This is not very ideal.
- In the display control window go to the
Times
tab.
Turn on the enabled
button and enter 5 minutes for the Only Show Every
. Press return.
- Note: this isn't time binning. This just skips the observations.
- Remove that display.
- Now we're going to bin the times.
- Bring up the Properties dialog for this madis point data. (Double click or
right click on the data source entry in the Field Selector).
- Choose a 15 minute
Bin Size
and press OK
.
- Now, create a point data plot again.
- Spatially subset the point data.
- Bring up the Properties dialog for the madis point data. Go to the
Spatial Subset
tab.
- Zoom in over Colorado and drag a box with the left mouse to select a region.
- Turn on
Reload Displays
and press OK
.
Unidata IDV Workshop for version 6.3 > Accessing and Displaying Data > Point Observations