Changes between Version 24 and Version 25 of VisItBasics

Timestamp:

05/31/11 11:57:09 (14 years ago)

Author:

Brandon Shroyer

Comment:

—

VisItBasics

@@ -72 +72 @@
 [[Image(VisItPseudocolorMenu.png)]]
 
-3.  Click the Draw button.  This will draw a pseudocolor image in the !VisIt window to the right of the control window.
+3.  Click the Draw button.  This will draw a pseudocolor image in the !VisIt window to the right of the control window.  For high-resolution images, this may take several minutes.
+
+[[Image(Bx2Dscreengrab.png)]]
+
+If the Chombo file is one of a series, you can animate them by clicking the play buttons.  You can advance or retreat a single frame by clicking the skip buttons.
+
+[[BR]]
+=== 3D Plots and the Slice Operator ==
 
 
+Pseudocolor plots are opaque by default.  This means that if you try to create a pseudocolor plot of a 3D dataset, you will get a large colored block.  The boundary conditions of the dataset will be visible, but you will probably want to see some of the interior.  This is where the ''slice operator'' comes in.
 
+The slice operator creates a 2D plot by taking a planar slice of a 3D one.  This is especially effective for problems with some kind of axial symmetry, where a cross section of a coordinate plane will give you a pretty good idea of what's going on throughout the simulation.
+
+To obtain a slice of a 3D pseudocolor plot:
+
+1.  Create a 3D pseudocolor plot (see "Creating a Pseudocolor Plot" above).
+
+2.  Under {{{Plots}}, click {{{Operators->Slicing-Slice}}}.
+
+[[BR]]
 == Making Movies in Visit ==