Changes between Version 17 and Version 18 of VisItBasics

Timestamp:

05/25/11 12:03:34 (14 years ago)

Author:

Brandon Shroyer

Comment:

—

VisItBasics

@@ -1 @@
-== Starting Visit ==
+[[PageOutline]]
+
+= VisIt Basics =
+[[BR]]
+== Setting Up and Running !VisIt ==
+
+!VisIt is currently installed on {{{clover}}} and {{{grass}}}.  {{{Clover}}} does not have modules installed, so a different setup process is required on each machine.
+
+==== Clover ====
+
+Since {{{clover}}} doesn't have the {{{modules}}} program installed on it, you will have to manually add the {{{visit}}} executable's directory to your search path:
+
+1. Go to your home directory and open your {{{.bashrc}}} file.
+2. Add the following line to your {{{.bashrc}}}:
+{{{
+export PATH=/opt/visit2/bin:$PATH
+}}}
+3. Close your {{{.bashrc}}} file and enter the command {{{source .bashrc}}} to add the change to your environment.
+4.  Enter the command {{{visit}}} to start !VisIt.
+
+
+==== Grass ====
+
+!VisIt is installed as a module on {{{grass}}}, so the setup is much more straightforward.  The steps for making it part of your default environment, however, are very similar:
+
+1. Go to your home directory and open your {{{.bashrc}}} file.
+2. Add the following line to your {{{.bashrc}}}:
+{{{
+module load visit
+}}}
+3. Close your {{{.bashrc}}} file and enter the command {{{source .bashrc}}} to add the change to your environment.
+4.  Enter the command {{{visit}}} to start !VisIt.
+
+
+In either case, once you see a screen like the one below, you are ready to go.
+
+
+
+
+[[BR]]
+== Opening Files in Visit ==
 
 [[BR]]
 
 Visit reads [wiki:ChomboHdf HDF5] files and can recognize them from the {{{File open}}} screen, provided they have the {{{.hdf}}} extension.  If a collection of {{{.hdf}}} files with the same numbering convention exists in a directory, Visit will group them together and open them as a batch, which makes producing images and animations easier.  The process is as follows:
+1.  Go to the directory containing the files you want to open.  This is not strictly necessary, but will make your life easier in the long run.
 
-   1.  Click {{{File->Open file...}}} to bring up the {{{File open}}} screen.
+2.  Click {{{File->Open file...}}} to bring up the {{{File open}}} screen.
 
-   2.  Enter the directory path of the files in the {{{Path}}} field.
+3.  Enter the directory path of the files in the {{{Path}}} field.
 
-   3.  The grouped HDF5 files are listed as {{{.hdf}}} databases in the {{{File open}}} window, with the individual files under the group header.  Select the group you want and make sure that the "Open as File Type" box is set to "Chombo".
+4.  The grouped HDF5 files are listed as {{{.hdf}}} databases in the {{{File open}}} window, with the individual files under the group header.  Select the group you want and make sure that the "Open as File Type" box is set to "Chombo".
 
 [[Image(Screenshot-Visit File open.png)]]
@@ -19 +60 @@
 [[BR]]
 
-One of the most common and useful plots at our disposal is the ''pseudocolor'' plot, which presents the intensity of a scalar attribute as a color spectrum.
+One of the most common and useful plots at our disposal is the ''pseudocolor'' plot, which presents the intensity of a scalar attribute as a color spectrum.  In two dimensions, this is fairly straightforward; in three dimensions an additional slice operation (see below) is usually required to get any useful information.
+
+To create a pseudocolor plot:
+
+1.  Open a 
 
 == Making Movies in Visit ==