Using the Data Navigator in a Visualizer

The data navigator helps you move through the data being visualized. It has different appearances, depending on the number of dimensions in your data. If your data is a single scalar value, there is no data navigator.

For 1-dimensional arrays and parallel variables, the data navigator is the scroll bar to the right of the data. The number to the right of the buttons for the File and Options menus indicates the coordinate of the first element that is displayed. The elevator in the scroll bar indicates the position of the displayed data relative to the entire data set.

For 2-dimensional data, the data navigator is a rectangle in the shape of the data, with the axes numbered. The white box inside the rectangle indicates the position of the displayed data relative to the entire data set. You can either drag the box or click at a spot in the rectangle. The box moves to that spot, and the data displayed in the display window changes.

For 3-dimensional data, the data navigator consists of a rectangle and a slider, each of which you can operate independently. The value to the right of the slider indicates the coordinate of the third dimension. Changing the position of the bar along the slider changes which 2-dimensional plane is displayed out of the 3-dimensional data.

For data with more than three dimensions, the data navigator adds a slider for each additional dimension.

Changing the Axes

You can change the way the visualizer lays out your data by changing the numbers that label the axes. Click in the box surrounding the number; it is highlighted, and an I-beam appears. You can then type in the new number of the axis; you don't have to delete the old number. The other axis number automatically changes; for example, if you change axis 1 to 2, axis 2 automatically changes to become axis 1.