Tecplot Talk

The length of the routine name is the problem here. Some Fortran compilers truncate symbols to 31 characters, which is what our Fortran-C interface assumes. Apparently, your compiler supports longer symbols. You should be able to work around this by calling the function as: tecutildatavaluegetwritab...

Hi, If your data is structured, then Tecplot uses curvilinear coordinate transformations to calculate the gradients, which would give somewhat different results from yours. If your data is unstructured, then Tecplot calculates it very much the same as you describe here, a technique called "Movi...

Andy, I think the key bit of information here is the presence in your object code of mixed-case symbols such as TecEnd110. PGI Fortran by default translates all symbols to lower-case, and appends an underscore. If it were doing that with your code, this symbol would have been tecend110_, and your li...

Hello, Ridhwan, If you can define a closed path in your data over which to integrate, you can calculate circulation using the Analyze/Perform Integration menu option. In the Integrate dialog, for Type of Integration, select Vector Dotted with Unit Tangential, and select your velocity components for ...

Chris, The spatial interpolation method is piecewise-linear by default. Cells are, in effect, divided by adding nodes at their center and face centers, until all cell pieces are tetrahedral. The extra nodes are calculated by arithmetically averaging the variable values at all nodes (for the cell-cen...

Defining a closed path in three dimensions can be a challenge. If you have ordered data, you may be able to define an index range that encloses the desired location. The macro Jim mentioned gives you (with some editing) another option for creating a circular I-ordered zone in 3D. Once you have creat...

You can interpolate vorticity from the volume zones to the surface zones using Tecplot's Data/Interpolate... options. If the nodes of your surface zones are coincident with nodes in your volume zones, linear interpolation should be fine (and quick). Otherwise, you may want to consider Kriging, a muc...

Hi, Tecio stores most of the data fed to it in a temporary file, then appends the contents of that temporary file to the .plt file when tecend is called. This error message is reported if one of two circumstances occurs: (1) Unable to read the temporary file, or (2) unable to write to the .plt file....