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Tecplot Surfaces
When data has been read in,it is easy to draw
3D meshes and surfaces, and then
rotate, translate or zoom in or out.
Meshes and Surfaces.
After you have read in your data, you will see
a 2D mesh. To view a 3D mesh select the "3D" button that is near
the upper left corner of the tecplot window. Click "Redraw" and
press ok on the warning windows that appear. You should see the
3D mesh. Here is an example.
To view a surface, turn the Mesh off (click on
the red box next to mesh), turn shade on (click on the gray box
next to Shade) and click on "Redraw". The shaded surface will be
drawn.
For a smoother surface, click on "Plot Attributes
...". (If you see "Tool Details..." instead of "Plot Attributes...
first click on the arrow in the tools palette.) A window will popup.
If a zone isn't highlighted, select the desired zone by clicking
on its line. Pull down the "Shade Plottype" menu as follows to "Gouraud",
and press "Redraw". The gouraud shading of this surface appears
later in this page.
The surface will be drawn with gouraud
shading, which eliminates some of the sharp edges of the polygons
that define the surface.
Rotation, Translation
and Zoom. You may rotate, translate, and zoom in or out whenever you
are working with three dimensions. Select one of the x-rotate, y-rotate,
z-rotate, translate or zoom button in the tools palette, as shown
below, and then use the mouse with the left button to perform the
operation. 
If you are working with a surface, a mesh
representation of the surface will appear. When done, click "Redraw"
to see the surface.
For more control, click the "Tool Details..."
button when one rotation, translation or zoom tool is selected.
A window will pop-up. The operation is obvious. These windows can
also be accessed by pulling down the "View" menu to "3D Rotate"
or "Translate/Magnify".
The three buttons immediately above the x-rotate
button also may be selected to perform rotations.
Surface Plotting
Exercises
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