COMPUTER GRAPHICS MAPPING SPECIALIST 1107

DISTINGUISHING FEATURES OF THE CLASS

Under general supervision, an employee in this class uses computer graphics equipment in the performance of difficult and varied map drafting tasks. This position differs from those in the Map Drafter series in that the emphasis is on the application of computer technology to mapping projects, rather than on the mechanical aspects of map drafting. Performance is evaluated through review of finished work and by consultation and periodic conferences. The incumbent may train employees in the use of the equipment and may supervise those involved in routine applications thereof. Does related work as required.

TYPICAL WORK ACTIVITIES

Analyzes mapping information from various sources to determine applicability of computer graphics to a project;

Selects from the computer's menu and keys in the appropriate instructions necessary to accomplish a specific mapping tasks;

Encodes mapping information into usable computer data through the use of trigonometry and analytic geometry to arrive at an accurate map rendering;

Produces a whole map from sections drawn in different scales by digitizing the sections and keying in computer instructions;

Operates a pen plotter to perform map-printing functions;

Compares contractors' maps with official records, and, using the computer, analyzes results and discusses disparities with supervisor;

Creates permanent records by reading and writing data to and from magnetic tape and/or disk;

May recommend software improvements to supervisor;

Discusses mapping problems with County departments, local jurisdictions, surveyors, title companies and taxpayers;

May instruct others in the use of computer graphics equipment.

FULL PERFORMANCE KNOWLEDGES, SKILLS, ABILITIES AND PERSONAL CHARACTERISTICS

Thorough knowledge of the principles and techniques of computer graphics operations as applied to mapping; good knowledge of the principles and practices of may drafting; good knowledge of trigonometry and analytic geometry; ability to read and interpret maps, charts, plans and survey notes; ability to think in abstract terms and apply such reasoning to the operation of computer graphics equipment; ability to follow complex written instructions and procedures; ability to express oneself clearly and concisely, both orally and in writing; physical condition commensurate with the demands of the position.

MINIMUM QUALIFICATIONS

OPEN COMPETITIVE

Three (3) years of drafting experience, two (2) years of which must have been in computer-operated map drafting.

PROMOTIONAL

Two (2) years of permanent competitive status as a Map Drafter I or Drafter II.

R04/02/90

SUFFOLK COUNTY

Competitive