Research On Surveying-Documents Based Rapid Drawing Method And Its Application

With rapid development of real estate industry, the demand of building-graphic is more and more. Traditionally, the survey-people create survey document to record survey data firstly,in most case the survey document is in Excel format, the drawing-people, draw build graphic with CAD according survey document manually,it is inefficient. The dissertation presents a rapid-drawing method to realize automatic drawing based on survey documents, to reduce drawing workload.The dissertation's main contents include:(1) By analyzing the structure characteristics of survey document, an automatic survey data extraction method is proposed and implemented; the method can extract survey data from survey document and convert survey data into vector data. The method solves data acquisition problem for survey-document based rapid drawing method.(2) By analyzing topologic characteristics of building topology graphic, building graphic is broken down into a set of primitives, which are defined as primitive object; and then the dissertation researches primitive object based drawing method of building graphic.(3) Based on the above two works, a survey documents based rapid drawing system is developed in AutoCAD through secondary development with VBA.