Err. Unexpected end of file after location

Problem: I tried to load a data file into Tecplot ad got this error message. What does it mean and how can I fix it? Solution: This error message means that the number of points specified in the header of the data file is greater than the number of points the Tecplot found when it read the file. The only way to fix this is to examine the file to […]

» Read More


Can a layout file created in Tecplot 10 be loaded to Focus?

Problem: Can Focus load a layout file created with Tecplot 10? Solution: Yes. In most cases, Focus will load a layout file created with Tecplot 10. If the data the layout file was created from was loaded via the Fluent loader or Plot3D loader or CGNS loader then Focus will not be able to load the layout because those loaders do not exist in Focus.


Multiple contour legends

Problem: I am using multiple contour variables C1 C2 C3 and C4 in my plot but I can only see the legend for C1. Solution: You must have the Contour Details dialog set to the desired contour variable (C1 C2 C3 C4) when you toggle on the Legend. And that contour variable must be in active use in the plot. If a variable is assigned to a Zone Layer like […]

» Read More


Blanking a corner of plot

Problem: I want to blank my contour plot only in the lower left-hand corner where x < 45 AND y < 30. Solution: You can use equations like the ones below to create a blanking variable equal to 0 only if x < 45 and y < 30. Then you can delete the extra variables {lowerx} and {lowery}. {lowerx} = max (x -45, 0) {lowery} = max (y – 30, […]

» Read More


2D Probe calculation

Problem: What process does Tecplot use for probing? Also for streamtrace placement contour labeling linear interpolation and polyline extraction in 2D. Solution: In two dimensions Tecplot interpolates for dataset values at the chosen point using bilinear interpolation. For triangular cells, this is a straightforward interpolation of the three nodal values of the triangle that encloses the point:1. Determine the triangle that encloses the chosen point. 2. Determine the weighting to […]

» Read More


3D Probe Calculation

Problem: What process does Tecplot use for probing in 3D? Also for streamtrace placement contour labeling linear interpolation and polyline extraction in 3D. Solution: Tecplot determines the tetrahedron that the point is inside and then does a weighted average of the data set values at the four corners of the tetrahedron to get the values at the point. This method is not the most accurate – especially if your grid […]

» Read More


Cannot find shared library

Problem: When I try to start Tecplot I get the message: Cannot find shared library. Solution: Solution 1: Set or add to SHLIB_PATH to include /usr/lib/X11R5. (HP-UX 10.x: The system file locations are different.) Solution 2: We use 2 permanent links that seem to take care of all the main problems. Link /lib to /usr/lib and link /bin to /usr/bin.


Better interpolation results

Problem: How can I get better results from interpolation? Solution: Be sure your destination zone has a greater density of points than your original data set and that the destination zone is a good match for the region defined by your points. To create specially shaped 3D zones use one of the add-ons included with Tecplot 9.2 or later. See the documentation for Tetra Grid Extrude and Prism Grid. Axis […]

» Read More


Add-on cannot be loaded.

Problem: I wrote an add-on that runs fine on my machine. But when a co-worker tries to load it on his PC he get the message: Add-on xxx.dll cannot be loaded. (126): The specified module could not be found. Solution: 1. Make sure that the add-on is compiled as a release build. 2. Verify that the add-on dll is located in a directory which is in the current path. 3. […]

» Read More


Banner flash but Tecplot doesn’t open.

Note: Tecplot 360 EX is native to the Mac and doesn’t rely on an X Windows System. Download the latest release or get a free trial. Problem: XDarwin also won’t launch. Solution: Installing XDarwin is a two-step process. Be sure to install the patch after installing XDarwin.