TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Rapid Visualization Development based onVisual Programming

Developing a Visualization Prototyping Language(DAEV)

Benedikt Stehno

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Goal

To develop a multi (cross) platform rapid visualizationprototyping language (OpenInsightExplorer )

easy to use (non programmers)extendableopen sourceautomatic parallelizationsupports hardware acceleration (GPU)custom data types

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Visualization Pipeline

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Idea

combine the powers of ...a modular approachvisual programmingdataflow programming

... to a Dataflow Visual Programming Language (DFVPL)

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Idea

Each module (or patch)represents a stage of the visualization pipelineworks as an independent black boxcommunicates with other modules (over ports)is arranged and connected in a visual editor (visualprogramming)is executed as soon as data is available (dataflowexecution)

Programming becomes the task to visually connect a custompipeline together

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Features

Features of OpenInsightExplorer

open source and platform independenceautomatic parallelizationcustom data typesjava classes as data typedata streamstype-safetyeasy patch / library installation

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Features

Unique features of OpenInsightExplorer

easy to develop modules (Patch interface)delegating Patchespatch GUIsGrowing PortsPort TreesGeneric Ports

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Features

Patch InterfaceOnly a small Java interface must be implement to write a patch.Similar to the Java Applet interface (run(), init(), stop(),...).

Delegating PatchesPatches can sent functionality (Methods, ...). Allows to split andcombine tasks between patches.

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Features

Patch GUIsMultiple GUIs for a patch possible.

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Features

Growing Ports and Port TreesDynamically add / remove ports to a patch.

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Features

Generic PortsDynamically adaption to a data type.

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Evaluation

OpenInsightExplorer was evaluated by implementing examplevisualizations.

hardware accelerated (GPU) volume renderercollection of OpenStreetMap visualizations

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Evaluation

Volume rendering

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Evaluation

Volume rendering

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Evaluation

OpenStreetMap

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Features

OpenStreetMap

TitleGoalIdea

OpenInsightExplorer FeaturesEvaluation

Conclusion

Conclusion

Conclusion

Still too complex for none programmersState-of-the-art DFVPL features are missing (debugging,structured programming, ...)Arbitrary synchronization/execution between patchesExecution overhead increases fast (only good forprototyping)Generic Ports and Growing Ports improve the reuse ofpatches a lot