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by salter
Wed Nov 12, 2014 1:36 pm
Forum: Analyzer
Topic: extract points over time
Replies: 10
Views: 5872

Re: extract points over time

Yes. If you generated a curve over time, you have the physical coordinates, other variables in your data set, and a time. Interpolating w.r.t. time will generate additional data between known points. All of the data can be extracted and put into a chart.
by salter
Wed Nov 12, 2014 1:20 pm
Forum: Tecplot 360 and Focus
Topic: Calculating cell extremities
Replies: 1
Views: 763

Re: Calculating cell extremities

In the equation editor, use the following: {dx}=0 {dy}=0 {dz}=0 to initialize those variables. Then for the remainder of the computations, use the following: {dx}=sqrt((x-x(i-1))**2 + (x-x(i,j-1))**2 + (x-x(i,j,k-1&#...
by salter
Tue Aug 19, 2014 12:58 pm
Forum: Animation
Topic: Animating xy maps with all zones active
Replies: 3
Views: 1815

Re: Animating xy maps with all zones active

Broono, To animate all the line maps, simply set them up, and have their display active. Then you can use the following simple macro: $!VarSet |NumFrames| = (|NumZones|-1) $!Loop |NumFrames| $!VarSet |CurrentFrame| = (|loop|+1) $!Loop |NumLineMaps| $!LineMap [|loop|] Assign (Zone...
by salter
Fri Aug 15, 2014 5:56 am
Forum: Animation
Topic: Animating xy maps with all zones active
Replies: 3
Views: 1815

Re: Animating xy maps with all zones active

Broono, I wrote a suite of macros for the quick macro panel (QMP) that animates XY maps. You simply set up all the maps you want to animate, and then loop through the zones in each map, simultaneously. I did this for a time accurate computation where each zone represented a different time step, and ...
by salter
Fri Jul 25, 2014 9:49 am
Forum: Tecplot 360 and Focus
Topic: Velocity vector have wrong direction when rotate thegeometry
Replies: 1
Views: 797

Re: Velocity vector have wrong direction when rotate thegeom

Hooman. When you rotate or mirror geometry that has velocity and/or shear vector data associated with it, you also have to rotate or mirror the vector variables. The same rotation matrix used to rotate geometry is used for these vectors. When mirroring, Tecplot should accommodate the vector variable...
by salter
Thu Jun 26, 2014 11:29 am
Forum: Animation
Topic: Animate XY line with a moving line
Replies: 10
Views: 4665

Re: Animate XY line with a moving line

Andrew, So you have a line surface? The animation you provided is quite interesting, but what I am lost is what do you really want to see. Surfaces can be displayed as a grid represented by lines between points, or a shaded representation of the cells created by the line connections between points. ...
by salter
Tue Jun 24, 2014 7:02 am
Forum: Animation
Topic: Animate XY line with a moving line
Replies: 10
Views: 4665

Re: Animate XY line with a moving line

werdnahman, I'm trying to understand what you are describing, but need some additional information. When I looked at the referenced webinar from Durrell of Tecplot Inc., I see animation of the surface over time, with an X-Y line plot showing where a line indicates time progression along an unsteady ...
by salter
Mon Jun 23, 2014 6:42 am
Forum: Tecplot 360 and Focus
Topic: Plotting average of multiple line maps
Replies: 3
Views: 1561

Re: Plotting average of multiple line maps

Thank you Straton. The macro would only be necessary if the points did not all have the same X values for each curve. While the interpolation can be done by hand, repeating the operations and/or using lots of lines makes the by-hand mode rather cumbersome. Fortunately the macro works quickly and is ...
by salter
Fri Jun 20, 2014 6:15 am
Forum: Tecplot 360 and Focus
Topic: Plotting average of multiple line maps
Replies: 3
Views: 1561

Re: Plotting average of multiple line maps

Jav53, You can load the statistics addon, and compute a mean, as well as other statistics for either all zones or only active zones. I believe you will have to go to a 2D plot to do the statistics, then back to XY. To place the average on the plot, you can use dynamic text &(AuxVar[nnn]:name) fo...
by salter
Wed Jun 04, 2014 5:27 am
Forum: Tecplot 360 and Focus
Topic: r.m.s value
Replies: 3
Views: 1620

Re: r.m.s value

Wah, Using the statistics addon, you can easily compute the RMS of any variable. If you so choose, you can extract various segments of your data into separate zones, and use the statistics addon to specifically compute the RMS of those segments for windowing. Thus far though, I've not found a way to...
by salter
Fri May 30, 2014 5:23 am
Forum: Tecplot Macro Language
Topic: Read Data in From Files as String
Replies: 2
Views: 2296

Re: Read Data in From Files as String

Chris,

You probably need to format the output for the variable in Tecplot. For macro variables, you can have formats such as the exponential engineering format. Check the "tprm.pdf" document under $TEC360HOME/doc/tecplot/ for the syntax. It is something like |Value%10.4g| I think.
by salter
Fri May 30, 2014 5:19 am
Forum: Analyzer
Topic: how can I obtain the skin friction lines with tecplot?
Replies: 2
Views: 1600

Re: how can I obtain the skin friction lines with tecplot?

Nigel,

If you mean surface streamlines, that is done with a flow field. Otherwise, I'm unsure of what you mean by skin friction lines.
by salter
Sat May 10, 2014 1:01 pm
Forum: Tecplot 360 and Focus
Topic: Comparing data sets
Replies: 1
Views: 1591

Re: Comparing data sets

Wallace, I do this all the time. In fact, you can difference the solutions or even use Richardson Extrapolation if there are no flow discontinuities. If the data has identical meshes per time step, then You can write a macro that generates the data. You can do this by recording a macro, then changin...
by salter
Fri Apr 04, 2014 2:56 pm
Forum: Tecplot 360 and Focus
Topic: How to visualize the boundary between two solid objects
Replies: 6
Views: 1929

Re: How to visualize the boundary between two solid objects

Roberto,

Do you have any mapping file that indicates which elements are the boundary nodes or elements for your analysis software?
by salter
Fri Apr 04, 2014 6:55 am
Forum: Tecplot Macro Language
Topic: opening multiple data files using macros
Replies: 3
Views: 2118

Re: opening multiple data files using macros

You are most welcome.

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