SAAPS, Version 1.01

Data Plotter Help

With the data plotter tool one can plot the data that exist in the SAAPS database. Look at the database list to get an description of the available data.

To produce a plot one needs to go through the steps outlined below.
 

Select data to load

First one needs to select the data to load from the SAAPS database. This is done by selecting one of the items in the Database objects list. In the figure the GOES-08 particle data has been selected.

The Inspect button can be used to view the meta data.

Select a time period and get the data

Next, the time period over which the data should be loaded should be selected. Select the start and end dates from the menu bars. Then push the Get data button. In the figure the period 2000-11-17 to 2000-11-20 has been selected.

Select the data fields for the x- and y-axes and plot

When the data has been loaded the data fields will appear in the X Axis Data and Y Axis Data lists. The user select what should appear on the respective axes. In the figure the Time field has been selected for the x-axis and the E>0.6 MeV and E>2 MeV electron data fields have been selected for the y-axis. Only one field can be selected for the x-axis, while multiple fields can be selected for the y-axis. How multiple fields are selected varies for different computer platforms.

When the Plot button is pushed the plot will appear in a new window.
 

The plot window

The plot window has three menus, the File menu, the Axis menu, and the Lines menu.

The File menu contain the Print and Quit items. Quit will only quit the plot window. Print is not implemented yet.

The Axis menu contains X Log, Y Log, Fill, and Set Axes Limits items. With the X and Y Log items one can choose to display the data with logarithmic scaling. The Fill item scales the plot so that the data points fills the axes limits. With the Set Axes Limits the values of the low and high values of the axes can be specified.

From the Lines menu the plot style of the plot can be set to lines and/or points.

To zoom in on the plot click-and-drag with the mouse and move it down and to the right. To zoom out, click-and-drag with mouse and move it up and to the left. Alternatively one can also use the Axis->Fill menu.

The whole window can also be resized in the usual way.
 


Peter Wintoft
Tuesday, October 23, 2001