One-point touch input of vector information for computer displays

  • Authors:
  • Christopher F. Herot;Guy Weinzapfel

  • Affiliations:
  • Computer Corporation of America, 575 Technology Square, Cambridge, Massachusetts;Architecture Machine Group, Massachusetts Institute of Technology, Cambridge, Massachusetts

  • Venue:
  • SIGGRAPH '78 Proceedings of the 5th annual conference on Computer graphics and interactive techniques
  • Year:
  • 1978

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Abstract

The finger as a graphical stylus enjoys a coefficient of friction with glass sufficient to provide input of direction and torque as well as position from a single point. This report describes a pressure-sensitive digitizer (PSD) capable of accepting these force inputs, and discusses a set of five simple input applications used to assess the capabilities of this device. These applications include techniques for specifying vectors, and pushing, pulling, dispersing and reorienting objects with a single touch. Experience gained from these applications demonstrates that touch and pressure sensing open a rich channel for immediate and multi-dimensional interaction.