GW150914 VisIt Tutorial ETWS - Revision history

Noncct pmoesta: /* A volume rendering example */

2016-06-15T03:47:01Z

‎A volume rendering example

2016-06-15T03:45:56Z

‎A volume rendering example

2016-06-15T03:44:57Z

‎A volume rendering example

2016-06-15T03:41:05Z

‎A volume rendering example

2016-06-15T03:39:43Z

‎Visualizing the spacetime with VisIt

2016-06-15T03:01:21Z

‎A visualization example

2016-06-15T02:59:32Z

‎A visualization example

2016-06-15T02:59:03Z

‎A visualization example

2016-06-15T02:57:50Z

‎A visualization example

2016-06-15T02:56:26Z

‎A visualization example

@@ Line 82: / Line 82: @@
 Adjust the volume plot arguments as follows to get an initial plot
 [[Image:Vol1.png]]
@@ Line 88: / Line 87: @@
 [[Image:Vol3.png]]
-and click <tt> Draw <\tt>. Afterwards feel free to adjust the settings for the 1D colormap used to generate the volume rendering.
+and click <tt> Draw </tt>. Afterwards feel free to adjust the settings for the 1D transfer function used to generate the volume rendering.
 == Further documentation ==

←Older revision		Revision as of 03:45, 15 June 2016
Line 75:		Line 75:


−	then add a volume plot <tt> Add Plot -> Volume ,/tt>	+	then add a volume plot <tt> Add Plot > Volume </tt>

@@ Line 70: / Line 70: @@
 First, load the 3D data
 [[Image:3ddata.png]]
 then add a volume plot <tt> Add Plot -> Volume ,/tt>
 [[Image:Vol2.png]]
 Adjust the volume plot arguments as follows to get an initial plot
 [[Image:Vol1.png]]
 [[Image:Vol3.png]]
 <tt>VisIt</tt> provides a number of tools and options to tune this visualization, output it to image or movie files, save and restore sessions, remote visualization, and so on. More information can be found on the [https://wci.llnl.gov/simulation/computer-codes/visit/manuals Manuals page].
 [[Image:vt-9.png]]            [[Image:vt-10.png]]            [[Image:vt-11.png]]

@@ Line 75: / Line 75: @@
 then add a volume plot <tt> Add Plot -> Volume ,/tt>
 [[Image:Vol1.png]]
+[[Image:Vol3.png]]
 <tt>VisIt</tt> provides a number of tools and options to tune this visualization, output it to image or movie files, save and restore sessions, remote visualization, and so on. More information can be found on the [https://wci.llnl.gov/simulation/computer-codes/visit/manuals Manuals page].
 [[Image:vt-9.png]]            [[Image:vt-10.png]]            [[Image:vt-11.png]]

@@ Line 67: / Line 67: @@
 The plot depicts now the system’s conformal factor and horizons at t=0. To cycle through subsequent times, we need to create a database correlation first, telling <tt>VisIt</tt> how to match the time indices in the <tt>phi.*.xy.h5</tt>, <tt>surface01_*.vtk</tt>, and <tt>surface02_*.vtk</tt>. To create the database, we need to use the menu <tt>Controls > Database correlations</tt>, select <tt>New…</tt>,  select the three databases on the left window (<tt>Sources</tt>) and move them right using the right arrow. Once the databases appear in the <tt>Correlated sources</tt> window, we can name the correlation, select <tt>Cycle</tt> for the correlation method, and click <tt>Create database correlation</tt>. Once the correlation is created, an <tt>Active time slider</tt> menu will appear just below the <tt>Active Source</tt> menu, indicating that our correlation is now controlling the slider; moving this slider will then step through the three databases simultaneously, making sure that all the plotted data refers to the same time coordinate.
 <tt>VisIt</tt> provides a number of tools and options to tune this visualization, output it to image or movie files, save and restore sessions, remote visualization, and so on. More information can be found on the [https://wci.llnl.gov/simulation/computer-codes/visit/manuals Manuals page].
 [[Image:vt-9.png]]            [[Image:vt-10.png]]            [[Image:vt-11.png]]

@@ Line 59: / Line 59: @@
 Next, we can plot the horizon surface of the first black hole by opening the <tt>surface01_*.vtk</tt> database, and using <tt>Add > Mesh > mesh</tt>. We can similarly add the second horizon by following the previous steps for the <tt>surface02_*.vtk</tt> database.
-[[Image:vt-6.png]]
+[[Image:Surfaces.png]]
 [[Image:vt-7.png]]

@@ Line 38: / Line 38: @@
 [[Image:Data.png]]
 We can then generate the plot by clicking <tt>Add > Pseudocolor > ML_BSSN--phi</tt>.
 [[Image:Addplot.png]]
 If the <tt>Auto Apply</tt> feature in <tt>VisIt</tt> is not selected, we need to click on <tt>Draw</tt> to make the plot appear.
 [[Image:vt-3.png]]

@@ Line 35: / Line 35: @@
 ==A visualization example==
-Let us, for instance, plot the configuration of the conformal factor <tt>ML_BSSN::phi</tt> on the xy plane, and superimpose the apparent horizon shapes. We first need to load the data for the conformal factor on this plane, using the Open button and selecting the correct path for the database <tt>phi.*.xy.h5</tt>.
+Let us, for instance, plot the configuration of the conformal factor <tt>ML_BSSN::phi</tt> on the xy plane, and superimpose the apparent horizon shapes. We first need to load the data for the conformal factor on this plane, using the Open button and selecting the correct path for the database <tt>phi.*.xy.h5</tt>. You will need to adjust the path to substitute your username for <tt> einstein </tt>
 [[Image:Data.png]]

@@ Line 37: / Line 37: @@
 Let us, for instance, plot the configuration of the conformal factor <tt>ML_BSSN::phi</tt> on the xy plane, and superimpose the apparent horizon shapes. We first need to load the data for the conformal factor on this plane, using the Open button and selecting the correct path for the database <tt>phi.*.xy.h5</tt>. We can then generate the plot by clicking <tt>Add > Pseudocolor > ML_BSSN--phi</tt>. If the <tt>Auto Apply</tt> feature in <tt>VisIt</tt> is not selected, we need to click on <tt>Draw</tt> to make the plot appear.
-[[Image:Openfiles.png]]
+[[Image:Data.png]]
 [[Image:vt-3.png]]