8. Quantitative Analysis

Simulation data must often be compared to experimental data so VisIt provides a number of features that allow quantitative information to be extracted from simulation databases. This chapter explains how to visualize derived variables created with expressions and query information about a database. This chapter also explains VisIt’s Pick, Query and Lineout capabilities which allow users to compute highly sophisticated quantitative, as opposed to visual, results.

• 8.1. Expressions
  • 8.1.1. Expression Window
  • 8.1.2. Expression grammar
  • 8.1.3. Built-in expressions
  • 8.1.4. Expression Compatibility Gotchas
  • 8.1.5. Automatic expressions
• 8.2. Query
  • 8.2.1. Query types
  • 8.2.2. Built-in queries
  • 8.2.3. Executing a query
  • 8.2.4. Querying over time
• 8.3. Pick
  • 8.3.1. Pick mode
  • 8.3.2. Pick Window
• 8.4. Lineout
  • 8.4.1. Lineout mode
  • 8.4.2. Curve plot
  • 8.4.3. Lineout Operator
  • 8.4.4. Lineout query
  • 8.4.5. Lineout via Curve plot variable menu
  • 8.4.6. Global lineout options
• 8.5. Data Level Comparisons Wizard