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Visualizing three-dimensional data

3D data is defined on regular rectangular grid. It can be rendered as surface, contour plot or density plot.

Common plot parameters:

  • XY info if true, then the X & Y axes are drawn and data ticks on them are visible.
  • Z info if on, then Z axis on surface plot is drawn, and on all plots there are data ticks or scales visible.
  • Mesh shows the original data grid or, on contour map, isolines.
  • Color scale provides mapping from Z value (a value in grid node) to color. At the moment, a spectrum, dual-shade and grayscale are supported. You can also turn color scaling off completely, then you'll get B/W picture or mesh grid.
  • Grids

Data zooming

A rectangular region of a map can be zoomed in. [PENDING: describe + snapshot]


Surface plots


  • Rotate
  • Scale XY plane
  • Scale Z plane

Use Action button on toolbar to switch between those operation modes. Then click-and-drag with left mouse button to rotate or scale the surface. The control box will appear (see picture above) and will show you new bounding box for the surface box. When you release a button, the picture will recompute.


Contour plot

Actions: data zooming


Density plot

Actions: data zooming


Saving pictures

Any of the 3D plot can be stored to a file in your favourite graphical format, which JPITSA supports.

  1. Adjust parameters for a plot (make it of your type, i.e. contour, set dualshade color model. etc), using toolbar
  2. Click on a  Print button on canvas.
  3. Define file name and resolution in dialog box appeared and press Export button.
  4. You got it!
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