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The pV diagram, which is a graph of pressure versus volume of the gas under study, is helpful in describing certain aspects of the substance. When the substance behaves like an ideal gas, the ideal gas equation describes the relationship between its pressure and volume. On a pV diagram, it is common to plot an isotherm, which is a curve showing p as a function of V with the number of molecules and the temperature fixed. Then, for an ideal gas, the product of the pressure of the gas and its...
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iVisDesigner: Expressive Interactive Design of Information Visualizations.

Donghao Ren, Tobias Höllerer, Xiaoru Yuan

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    iVisDesigner is a web-based system for creating interactive information visualizations without coding. It offers high expressiveness for complex datasets through modular design and supports features like responsive layouts and brushing interactions.

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    Area of Science:

    • Computer Science
    • Human-Computer Interaction
    • Data Visualization

    Background:

    • Designing effective information visualizations for complex datasets often requires programming expertise.
    • Existing tools may lack the expressiveness or interactivity needed for sophisticated visualization design.

    Purpose of the Study:

    • To present the design, implementation, and evaluation of iVisDesigner, a web-based system for interactive information visualization design.
    • To enable users to create complex, interactive visualizations without textual programming.

    Main Methods:

    • Developed a web-based system (iVisDesigner) with a conceptually modular design.
    • Incorporated support for interactive visualization features like responsive graph layouts and brushing/linking.
    • Conducted a performance analysis and an informal user study for system evaluation.

    Main Results:

    • iVisDesigner provides high interactive expressiveness across a broad design space.
    • The system successfully supports the interactive design of interactive visualizations.
    • Performance analysis and user study indicate system viability.

    Conclusions:

    • iVisDesigner empowers users to design complex information visualizations interactively without coding.
    • The system's modularity and interactive features enhance the visualization design process.
    • Further development can address identified limitations and expand capabilities.