Research On Multi-mediums Visualized Outputting Of Spatial Data

The thesis analyzed the current development of spatial data visualization on the whole and indicated the necessary of research on multi-medium outputting of spatial data, and then introduced three main outputting methods, including publishing map outputting, electronic map outputting and web map outputting in detail. At present, most softwares about visualization of spatial data only emphasize one or two outputting mediums. There are few researches about coherence and unification of multi-medium outputting of spatial data. To realise this aim, this thesis made a deeply study on the pivotal technology including map symbol library and map symbolization, color management and annotation represent about multi-medium outputting of spatial data. The main content and results of this research are as following:1. The research of interrelated theories and technique.The thesis start with the developping course, managing process and studying content of visualization in scientific computing and visualization of spatial data. Then through studying the mainly theories on multi-mediums visualized outputting of spatial data and analyzing the characters of different medium visualized outputting, the thesis put forward the research way of multi-mediums visualized outputting.2. Constructing map symbol library and symbolization.Constructing map symbol library and symbolization are very important for multi-medium outputting of spatial data. Based on presentation of interrelated theories about map symbol and each graphical interface, the article put forward the design and description of dot symbol, line symbol and area symbol which support multi-medium outputting. And through analyzing current map symbolization technique, this article brought forward a pretreatment symbolization way based on RDS.3. Expression of annotation.Expression of annotation is an important aspect of multi-medium outputting of spatial data. It affects the result of multi-medium outputting of spatial data. The article mainly presents the design of annotation, the configuring of annotation, the select of letter library and the display of annotation. It puts forward a feasible way of expression of annotation in multi-medium outputting of spatial data.4. Color management.Keeping exact transmission of color is very important to ensure the coherence of multi-medium outputting of spatial data. This article analyzed the current main color management means, and then put forward the color management method in multi-medium outputting of spatial data. This way integrated the ICC color management and sRGB color space.Basing on the research of the pivotal technologies, the article designed the archetypal system about multi-medium outputting of spatial data. It mainly includes the design of structure of system, the select of basal system. At last the article introduced the functions and interfaces of archetypal system.