Application of topographic map revision and supplementary in Linhuan Coal Mine;

Research on method and realization of digitalization of less big-scale topographic maps;

The utilisation of electronic total station-resecton measurement in topographic map repairing;

Programming of Drawing Relief Maps in AutoCAD with VB;

A method to extract the subcompartment boundary from contour of the relief map supported using GIS technology

Studies methods of recognizing ground symbols in relief maps to extract data that residential symbols represent.

A research on the grid size in constructing DEM with 1∶2000 topographical map;

Study on topographical map update using electronic map for navigation;

Contour lines extraction from color scanned military topographical maps

Contour lines recognition from scanned topographic maps;

Linguistic characteristics of symbols of topographic maps;

The paper presents several effective technique adopted in the imple-mentation of an automatic plotting system for the engineering topographic maps.

Research on the method of generating elevation data using terrain map;

Discussion on the process of plotting terrain map by digital scanning and its related problems;

ArcGIS based terrain map digitalization and 3D display

In accordance with standard topographic map schema,the automatic establishment of mathematical basis and drawing margins in digital mapping is realized.