Tecplot_360_Data_Format_Guide

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Tecplot, Inc.

Bellevue, WA

2017

Data Format Guide

Tecplot 360 EX 2017 Release 2

Tecplot 360 EX

Data Format Guide is for use with Tecplot 360 EX 2017 R2.

stored in a retrieval system, or translated in any form, in whole or in part, without the express written permission of Tecplot, Inc., 3535 Factoria Blvd, Ste. 550;

Bellevue, WA 98006 U.S.A.

The software discussed in this documentation and the documentation itself are furnished under license for utilization and duplication

only

according to the

license terms. The copyright for the software is held by Tecplot, Inc. Documentation is provided for information only. It is subject to change without notice. It

should not be interpreted as a commitment by Tecplot, Inc. Tecplot, Inc. assumes no liability or responsibility for documentation errors or inaccuracies.

Tecplot, Inc.

Post Office Box 52708

Bellevue, WA 98015-2708 U.S.A.

Tel:1.800.763.7005 (within the U.S. or Canada), 00 1 (425)653-1200 (internationally)

E-mail: sales@tecplot.com, support@tecplot.com

Questions, comments or concerns regarding this document: documentation@tecplot.com

For more information, visit http://www.tecplot.com

Tecplot®, Tecplot 360,™ Tecplot 360 EX,™ Tecplot Focus, the Tecplot product logos, Preplot,™ Enjoy the View,™ Master the View,™ SZL,™ Sizzle,™ and

Framer™ are registered trademarks or trademarks of Tecplot, Inc. in the United States and other countries. All other product names mentioned herein are

trademarks or registered trademarks of their respective owners.

NOTICE TO U.S. GOVERNMENT END-USERS

Use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth in subparagraphs (a) through (d) of the Commercial Computer-

Restricted Rights clause at FAR 52.227-19 when applicable, or in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at

DFARS 252.227-7013, and/or in similar or successor clauses in the DOD or NASA FAR Supplement. Contractor/manufacturer is Tecplot, Inc., 3535 Factoria

Blvd, Ste. 550; Bellevue, WA 98006 U.S.A.

Part Number: 17-360-05-2 Build 3299 Released: 4/2017

For third-party trademark and copyright information, see the Tecplot 360 EX User’s Manual.

Table of Contents

1 Introduction ............................................................................ 7

Subzone Loading ..........................................................................7

Creating Data Files for Tecplot 360 EX and Focus...................8

Best Practices .................................................................................8

2 Data Structure .................................................................... 11

Ordered Data...............................................................................12

Finite Element Data....................................................................13

Line Data .................................................................................14

Surface Data .............................................................................15

Volume Data .............................................................................15

Finite Element Data Limitations.................................................15

Variable Location ........................................................................16

Face Neighbors............................................................................16

Working with Unorganized Data Sets.....................................16

Example - Unorganized Three-Dimensional Volume.....................17

Time and Date Representation .................................................18

3 Binary Data ............................................................................ 19

Getting Started ............................................................................20

Viewing Your Output.................................................................21

Partitioned Data ..........................................................................21

Binary File Compatibility ..........................................................21

Deprecated Binary Functions .....................................................22

Character Strings in FORTRAN ................................................22

Boolean Flags............................................................................22

Binary Data File Function Calling Sequence ..........................22

Table of Contents

Non-partitioned Zones

...............................................................23

Partitioned Zones......................................................................23

Writing to Multiple Binary Data Files ..................................... 24

Linking with the TecIO Library................................................24

Linux/Macintosh.......................................................................24

Windows ..................................................................................25

Notes for Windows Programmers using Fortran ..........................25

Binary Data File Function Reference ....................................... 25

Defining Polyhedral and Polygonal Data ...............................58

Boundary Faces and Boundary Connections ................................58

FaceNodeCounts and FaceNodes.................................................59

FaceRightElems and FaceLeftElems ............................................60

FaceBoundaryConnectionElements and Zones ............................. 62

Partially Obscured Boundary Faces ............................................62

Examples......................................................................................62

Face Neighbors..........................................................................62

Polygonal Example.................................................................... 70

Multiple Polyhedral Zones......................................................... 75

Multiple Polygonal Zones.......................................................... 87

Polyhedral Example.................................................................100

IJ-ordered zone ........................................................................103

Switching Between Two Files ...................................................106

Text Example ..........................................................................109

Partitioned Data Examples ......................................................111

4 ASCII Data ........................................................................... 113

Converting ASCII to Binary.................................................... 113

Syntax Rules & Limits..............................................................113

ASCII File Structure ................................................................. 114

File Header .............................................................................114

Zone Record ........................................................................... 115

Text Record ............................................................................. 125

Geometry Record.....................................................................127

Custom Labels Record.............................................................. 130

Data Set Auxiliary Data Record...............................................130

Variable Auxiliary Data Record ................................................131

ASCII Data File Parameter Assignment Values .........................131

Ordered Data.............................................................................132

I-Ordered Data .......................................................................132

IJ-Ordered Data ...................................................................... 132

IJK-Ordered Data....................................................................133

Ordered Data Examples...........................................................133

Finite Element Data..................................................................138

Variable and Connectivity List Sharing ..................................... 140

Finite Element Data Set Examples............................................142

ASCII Data File Conversion to Binary...................................153

Preplot Options.......................................................................153

Preplot Examples .................................................................... 153

5 Reading SZL Data Files .............................................. 155

Getting Started with the API...................................................155

Passing Arguments and Receiving Values .................................156

Indexing and Zero Values.........................................................156

Errors.....................................................................................156

API Overview............................................................................157

Files and Data Sets..................................................................157

Geometries..............................................................................157

Text ........................................................................................159

Custom Label Sets ...................................................................160

Strings ...................................................................................160

Auxiliary Data........................................................................160

Varia bles .................................................................................161

Zones .....................................................................................161

Connectivity ...........................................................................162

Data Values ............................................................................163

Opening and Closing Files ......................................................163

Dealing with Strings.................................................................164

Reading Data.............................................................................165

Reading Connectivity Data ......................................................166

Accessing Data Values .............................................................166

Reading Auxiliary Data ...........................................................167

Reading Geometry and Text ...................................................167

Reading Custom Labels...........................................................168

Example Code ...........................................................................168

6 Writing SZL Data Files (New API) ...................... 169

Getting Started with the API...................................................169

Passing Arguments and Receiving Values .................................170

Indexing and Zero Values.........................................................170

Return Values and Errors.........................................................170

API Overview............................................................................170

Initialization and File Handling ...............................................171

Auxiliary Data........................................................................171

Zones, Variables, and Data .......................................................171

Partitioning and MPI..............................................................172

Connectivity ...........................................................................173

Opening and Closing Files ......................................................173

Working With Partitions..........................................................173

Overlap and Ghosts .................................................................174

Partitioning Zones ..................................................................174

Writing Data ..............................................................................174

Passive and Shared Variables ....................................................175

Writing IJK-Ordered Data .......................................................175

Writing Finite Element Data....................................................175

Writing Face Neighbors ...........................................................176

Writing Auxiliary Data ............................................................176

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