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What is Titan?

The Titan Informatics Toolkit is a collaborative effort between Sandia National Laboratories and Kitware Inc. It represents a significant expansion of the Visualization ToolKit (VTK) to support the ingestion, processing, and display of informatics data. By leveraging the VTK engine, Titan provides a flexible, component based, pipeline architecture for the integration and deployment of algorithms in the fields of intelligence, semantic graph and information analysis.

Why Titan?

The Titan project represents one of the first software development efforts to address the merging of scientific visualization and information visualization on a substantive level. The VTK parallel client-server layer will provide an excellent framework for doing scalable analysis on distributed memory platforms. The benefits of combining the two fields are already reaping rewards in the form of functionality such as the cell lineage application below.

How do I use it?

In the same way that scientific visualization applications can be built with VTK, you can now build information visualization and analysis applications with Titan. As shown in the image to the right, applications can be built by combining the components as appropriate for your specific domain needs. If you're interested in using Titan for development the Titan developers guide is the right place to start

Titan Developers Guide

An application based on the Titan Informatics Toolkit is shown here displaying multiple views including table, graph and geospatial all semantically linked.

General Titan information

• Titan Developers Guide
• Contributing to Titan
• Build instructions

How to obtain the source and build Titan.

• Windows Installation Issues

Problems/solutions to installing Titan apps on Windows.

• Related Work

Other information visualization toolkits.

• Titan Current Work Outline
• Features
• Titan Simple Application

Technical documents

• GPL Licensing Issues
• Graphviz Diagrams

How to add graphviz graph diagrams to the wiki.

• Interwiki map

How to link to other wikis and bug trackers from this wiki.

• Titan Migration

Migrating Titan classes into VTK.

• Administrative Discussions

Just some administrative blah...

Algorithms

• Titan Filters

How to create a new algorithm in Titan.

• Titan Readers

How to create a new reader in Titan.

• Titan Layout Strategy
• G-Space Layouts

How the G-Space graph layout strategy works.

• Hierarchical Bundling
• Tree Layout

Technical documents

• Interactive Attribute Assignment

Proposal

• MTGL Subgraph Isomorphism
• Subgraph Isomorphism
• MapReduce

In progress.

• Multicore

Multicore toolkits that Titan could integrate with.

• Supporting Incremental Graph Layout

Charts

Technical documents

• New Qt chart discussion

Design discussion about the new Qt charts. Completed.

• Final new Qt chart API

How charts currently work in ParaView.

• New Qt Chart integration

Discussion on how we could get charts integrated into OverView/ParaView.

• Final new Qt Chart integration

Final decision on how to get charts integrated into OverView/ParaView. In progress.

• VTK-based charts

Work on even newer charts using Cairo. In progress.

• Possible Charts
• Old stacked chart implementation

Code integration

• Python Integration

Scripting Titan using Python.

• NumPy and Titan
• Matlab Titan Toolbox

Write Matlab code that uses Titan components.

• Matlab Interface

Write Titan components that use existing Matlab code.

• Java Integration

Integrating Titan with Java.

• R Titan Integration

Integrating Titan with the R statistics language.

• Compiling GNU R and Matlab with VTK

Guide for building and running R and Matlab with VTK for common computer platforms

Databases

• From Database to Graph

How to read data from a database into a Titan graph.

• TableToGraph, Table to Graph

Another explanation of how to convert tables to graphs. These two pages need to be merged.

• Database API

Description of basic methods available in database classes.

• Database Type Mapping

Table of database types to Qt and VTK basic types.

Technical documents

• Database Schema to Ontology Mapping

Research on how we could convert database structures to ontologies.

• Entity Relationship Model Support
• Graph Refactoring

Discussion on the current version of the graph and tree data structures. Completed.

• Graph and Tree Analysis

Timing of vtkGraph and Boost Graph Library data structures.

• Ontology Support

Data structures

• Flat vtkSelection

Description of new vtkSelection data structure.

• N-Way Array Data Structures

Technical documents

• BLOBs in VTK

Discussion of how to implement large binary objects. Proposal.

• Data Object Caching

Caching results of operations by saving to a database. Proposal.

• PBGL

Research on how the PBGL data structure works.

• PBGL and vtkGraph integration

Discussion on how to integrate PBGL and vtkGraph. Proposal 2 is the currently implemented structure.

• Pedigree IDs

Implementing the new attribute type "Pedigree IDs". Completed.

• Unicode Strings

Supporting Unicode strings in VTK. In progress.

• N-Way Array Casting

Discusses mechanisms to simplify downcasting from vtkArray to vtkTypedArray<T>.

• N-Way Array File Formats

Current work on file I/O for the N-Way arrays.

• Distributed N-Way Arrays

Random thoughts on how to handle distributed dense and sparse arrays.

Geospatial visualization

• Roadmap
• Wish list

Technical documents

• Background research
• Pruning Geovis Multi-resolution Trees

How to dynamically prune the image tree. Completed.

• OverView integration

Ideas on how geovis can be integrated into OverView.

• Old Geovis threading

Description of the old threading geovis worker thead models before they were integrated.

Linear Algebra

Technical documents

• Linear Algebra Packages

Research on various linear algebra packages that could possibly integrate with Titan.

Statistics

• Statistics Engines

Titan offers a set of statistics engines, some of which already have a scalable, parallel implementation.

Text Analysis

• Mime Types
• Text Analysis

Views and rendering

• Qt Tree Adapter
• Titan View Creation
• Labels

The state of the art of labels in VTK.

Technical documents

• Annotation

Design for annotations in VTK. In progress.

• Cairo rendering

Using the Cairo 2D renderer in VTK. In progress.

• View Representation Refactoring

New VTK view/representation class hierarchy.

• VTK-Qt View-Representation Refactoring

New VTK-Qt view class hierarchy. Superceded by View Representation Refactoring.

• View as a canvas

Possible redesign of representations and views. Proposal.

• TreeMapView

Treemap view requirements. Completed.

• Labels in views

Integrating the non-overlapping label placer into the view/representation scheme.

• Dynamic Labels and Icons

Discussion on how to integrate label and icon rendering.

• Icon Glyphs
• Linked Views

Discussion on the various ways views could be linked.

• MetaViews

Proposal of framework for views made up of other views.

• Representations and Views in VTK
• Representations and Views in ParaView
• Tree Area Views

Integrating vtkTreeMapView, vtkTreeRingView and vtkIcicleView. Completed.

• Treemaps

Research about various treemap views and features.

Miscellaneous

• Arced and Routed Edges

  Intermediate edge points and edge layout algorithms. Completed.

• Attribute Filtering

  Integrate algorithms for filtering data into views. Proposal.

• Parallel BGL roadmap

  Out of date.

• Charts and statistics roadmap

  Out of date.

• FastSplatter: Pieces vs Extent
• Parallel Work

  Out of date.

• Pipeline Selection Conversion

  Proposed changes.

• Selection
• Time Representation
• Time Utilities
• Timeline Widget
• Generating corresponding trees and graphs for bundled edges