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# VisIt
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# VisIt
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Download [VisIt](https://visit-dav.github.io/visit-website/index.html) (an Open Source, interactive, scalable, visualization, animation and analysis tool) in version 3.3.x or higher. It, by default, supports W-DATA format.
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Download and install [VisIt, version 3.1.x or 2.13.x](https://wci.llnl.gov/simulation/computer-codes/visit/executables).
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In order to be able to visualize results produced by W-SLDA Toolkit you need to compile the plugin.
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The plugin must be placed on a system where VisIt server will be launched.
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[Video tutorial (YouTube)](https://youtu.be/K00h3sMbV-Q) showing how to install VisIt and connect it with a remote machine.
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# Installing W-data plugin on your local system
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Follow instruction from this [file](https://gitlab.fizyka.pw.edu.pl/wtools/wdata/-/blob/master/visit-plugin/README.md).
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Below we provide examples of the compilation process on selected systems.
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## Compiling plugin on [Andes](https://docs.olcf.ornl.gov/systems/andes_user_guide.html)
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```bash
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module load cmake
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cd wslda/lib-wdata/
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g++ -O3 -c wdata.c -fPIC
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ar crf libwdata.a wdata.o
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cp libwdata.a visit-plugin/
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cd visit-plugin/
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/sw/andes/visit/bin/xml2cmake -v 3.1 -clobber wdata.xml
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rm CMakeCache.txt
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cmake -DCMAKE_BUILD_TYPE:STRING=Debug
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make
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```
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## Compiling plugin on [Daint](https://www.cscs.ch/computers/piz-daint/)
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Before you start compilation **make sure that you can connect without typing password** from `ela.cscs.ch` to `daint101.cscs.ch`:
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```bash
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[wtools@dell ~]$ ssh ela.cscs.ch
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Enter passphrase for key '/home/wtools/.ssh/id_ed25519':
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[wtools@ela1 ~]$ ssh daint101.cscs.ch
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wtools@daint101:~>
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```
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If not use `ssh-keygen` & `ssh-copy-id daint101.cscs.ch`.
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Next execute on `daint101.cscs.ch`:
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```bash
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module load daint-mc
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module load Visit
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cd wslda/lib-wdata
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make
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cp libwdata.a visit-plugin/
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cd visit-plugin
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xml2cmake -clobber wdata.xml
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rm CMakeCache.txt
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cmake -DCMAKE_BUILD_TYPE:STRING=Debug
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make
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```
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# Opening file
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# Opening file
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When opening the file you need to select metadata file of W-DATA format, i.e file `*.wtxt`. Example is shown below.
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When opening the file you need to select metadata file of W-DATA format, i.e. file `*.wtxt`. An example is shown below.
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Expand list of `Open file as type` in order to check is `wdata` plugin is installed.
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*Note*: When you select `*.wtxt` file and click open VisIt should automatically use `wdata` plugin, as it is by default assigned to `wtxt` file extension. You can also select it manually using the option `Open file as type` and selecting WData.
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*Note*: When you select `*.wtxt` file and click open VisIt should automatically use `wdata` plugin, as it is by default assigned to `wtxt` file extension.
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# Example plot
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# Example plot
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Here you can download sample data here: [example-vortices.tar.gz](uploads/2ddded58f7b17f150a32eca65a0dce6f/example-vortices.tar.gz)
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Here you can download sample data here: [example-vortices.tar.gz](uploads/2ddded58f7b17f150a32eca65a0dce6f/example-vortices.tar.gz)
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To check if VisIt works correctly, try to open example data:
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To check if VisIt works correctly, try to open the example data:
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1. File -> Open File
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1. File -> Open File
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3. Select wtxt file. As example you can use `run1c.wtxt` from sample data set.
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3. Select wtxt file. For example, you can use `run1c.wtxt` from the sample data set.
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4. In `Plots` section: Add -> Pseudocolor -> `delta_abs`
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4. In `Plots` section: Add -> Pseudocolor -> `delta_abs`
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5. Click `Draw`. In case of sample data you should see:
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5. Click `Draw`. In the case of sample data, you should see the following:
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# Working in client-server mode
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# Working in client-server mode
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VisIt allows for connecting with remote servers and use them for data visualization and data analysis. In order to be able to work in client-server mode you need:
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VisIt allows for connecting with remote servers and using them for data visualization and data analysis. In order to be able to work in client-server mode, you need:
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1. Install visit on remote system.
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1. Install visit on remote system.
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2. Install W-DATA plugin on remote system.
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2. Create XML host file and store it on the local computer (client).
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3. Create XML host file and store it on local computer (client).
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After first usage of VisIt it will create folder with settings. In case of linux system it is hidden folder `.visit` in your home directory. In this folder you need to place appropriate host file. Examples of such files are provided in [hosts](https://gitlab.fizyka.pw.edu.pl/wtools/wdata/-/tree/master/visit-plugin/hosts) folder:
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After the first usage of VisIt, it will create a folder with settings. In the case of Linux systems, it is a hidden folder `.visit` in your home directory. In this folder, you need to place an appropriate host file. Examples of such files are provided in [hosts](https://gitlab.fizyka.pw.edu.pl/wtools/wdata/-/tree/master/visit-plugin/hosts) folder:
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You can also create a host file by using in VisIt: `Options->Host files`.
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You can also create a host file by using in VisIt: `Options->Host files`.
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When a host file is provided to visit, assign to it server should be visible on the list of hosts in `Open file` dialog box:
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When a host file is provided to visit, assign to it the server should be visible on the list of hosts in `Open file` dialog box:
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