VAPOR Features

Large Data Support

VAPOR enables interactive exploration of gridded data sets that are large in both the spatial and temporal domains. Wavelet-based multiresolution data representation permits users to make speed/quality tradeoffs for visual as well as non-visual data exploration tasks

• Desktop visualization and analysis of tera-scale sized data sets
• Data caching for improved interactivity and real-time animation of temporal data
• Out-of-core algorithms support data sets that are larger than physical memory

WRF-ARW Data Support

Tools and translators to facilitate importing data output by the WRF-ARW community model.

Time Varying Data

VAPOR provides first class support for data that evolve over time

• Real-time animation of time evolving fields
• Unsteady flow visualization
• Data management for terabyte sized simulation outputs

Direct Volume Rendering

Highly interactive direct volume rendering enables rapid identification of spatial/temporal regions of interest

• Hardware texture accelerated volume rendering
• Direct manipulation of floating point data
• Histogram aided color and opacity map editing
• Multiresolution data representation

Isosurfaces

Isosurfaces are constructed and rendered on the Graphics Processor

• Interactive construction and rendering of multiple isosurfaces
• Pseudo coloring isosurface with a second variable

Flow Visualization

Interactively visualize unsteady and steady 3D flow fields

• Streamline and streakline flow primitives
• Interactive seed placement
• Color flow primitives by magnitude or age
• 2D dense texture flow visualization (Image Based Flow Visualization)
• Field line advection

2D Data Probe

A 2D data probe that can be arbitrarily oriented in the data volume

• Pseudo coloring of scalar quantities
• Image Based Flow Visualization of vector quanties
• Integration with flow visualizer to permit precise positioning of seed points
• Quantitative data information

Quantitative Data Analysis and Data Manipulation

Vapor is closely coupled with (but does not require) Research System Inc.'s Interactive Data Language (IDL), a feature-rich scientific data language offering:

• Built-in math, statistics, and image & signal processing library
• Array-based data manipulation
• 2D data plotting

Multiple Variables

Explore data sets with multiple scalar and vector field variables

• Share color and opacity maps between variables
• Simultaneously view multiple field variables

Full Featured Graphical User Interface

The VAPOR graphical user interface contains all the advanced ease-of-use features expected in a professionally developed commercial product, yet rarely found in Open Source software:

• Undo/redo capability
• Session save, restore, and auto-recovery
• Context help (tool tips)
• User preferences startup file