Establishment and Application of Mechanical Graphical Symbol Storehouse Based on AutoCAD2004;

The paper introduces each standardization phase of the graphical symbols used in railway passenger transport services, and analyzes why railway stations can not use the standard graphical symbols in correct way.

As a national standard of traffic management domain,the standard standardizes the graphical symbols for use in TV monitoring system equipment for traffic,and lays the foundation for the standardization of the design and const.

The paper discusses some disputed theory problems in standardization field of public information graphical symbols.

Standardization and normalization of terminologies and graphic symbols;

When drawing through the use of MicroStation,the function "SHARE CELL" can bring convenience to graphic symbol displacement.

A novel graphic symbol recognition approach of engineering drawings based on radial basis probabilistic neural networks (RBPNN) is proposed.

Based on the analyses of the content of master-slave flip-flop in several digital circuits books,several problems are discussed,such as the meaning of master-slave flip-flop,graphic symbols,the phenomenon of one-shot change.

It integrates graphic symbols with oriented-information, and the graphics-oriented symbol becomes the media for people s direct communication, thus the function of the guidance system is realized.

This paper put forward a cartographic system based on symbol figure and introduces this system s framework,mode of data structure and several key problems in the process of geographical database changing to cartographic database,especially makes clear the conception of symbol figure.

A symbol figure-based cartographic system is put forward,which uses a group of simple figures to record results of symbolization to divide symbolization and drawing.