Implementation of Custom Colors in the DECwindows Environment

Abstract

This paper describes the implementation of user-defined, or custom, colors in the DECwindows environment. Custom colors can be used to augment the standard color set that is associated with the hardware colormap. The custom color set that is included in this paper consists of 240 distinct colors, each of which is comprised of red, green, and blue intensities. Intensify levels range from zero (no intensity) to 255 (maximum intensity). The DECwindow and Xwindow statements, which are required to implement the custom color set, are identified and described. Some of the tasks performed by these statements include creating and installing a colormap and accessing individual colors. Using a VAX C programming language platform, examples of proper invocation and syntax of these statements are provided. Some familiarization with C, DECwindows and Xwindows is assumed. Digital maps, Optical storate, Databases, Data compression.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1992
Accession Number
ADA269627

Entities

People

  • Maura Connor Lohrenz
  • Perry B. Wischow
  • Stephanie A. Myrick

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • C Programming Language
  • Cartography
  • Color Displays
  • Computer Programming
  • Data Compression
  • Digital Maps
  • Environment
  • Graphics
  • Intensity
  • Language
  • Maps
  • Military Research
  • Navigation Charts
  • Programming Languages
  • Standards

Fields of Study

  • Computer science

Readers

  • Database Systems and Applications
  • Educational Psychology
  • Human-Computer Interaction (HCI).