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    Regional Parameters' Application Research on Classification Mapping of Image Information
    图象信息分类制图的区域参数应用研究
    In this paper, we apply the theory of "Nature objects existed being excellent and washed out being of feebleness" to automated map generalization basing on thinking of the conditions of Map Use, Characters of Map Regions and Map Scale. Two generalization models which are called "Constrained Delaunay Triangle Net Generalization Model(CDTNGM)" and "Circle Generalization Model(CGM)" are created.
    本文在考虑了地图用途、制图区域地理特点和地图比例尺等因素的基础上,把“优胜劣汰”的思想运用到了地图自动综合中来,并实现了“约束Delaunay三角网综合模型”和“Circle综合模型”两个算法模型。
    We also build several tools to dynamic sum up and pack up generalization rules and parameters and put them to generalization knowledge library.
    1.考虑了影响制图综合的三要素,即地图用途、制图区域地理特点和地图比例尺,并实现了对综合规则、参数的归纳和整理,建成了可动态扩展的规则库和参数库。
    This thesis introduces the implication and function of regional parameters used in image's recognition,classification and mapping.
    本文介绍了应用于图象识别分类与制图的区域参数的涵义与功能。
    According to the transformation of alterable scale, the important location of the map can be kept precise and the inferior location is led to partial distorting, the mapping region can be enlarged 玶 scaled down purposefully, which reaches the aim of extending region signed by mapping in the limited mapping domain.
    通过变比例尺变换,可以使地图上重要的位置保持精确,次要位置产生局部变形,实现制图区域局部有目的放大或缩小,从而达到在有限的版面内适应扩大制图区域的目的。
    Charting of land desertification is a forward domain of the thematic charting of ecological environment. According to the fundamentals of modern cartography and the classification system of land desertification, to chart the thematic maps of the different periods can reveal the great application potentials of the numerical charting technology in the thematic charting of land desertification by synthesizing the temporal and spatial characteristics of the natural and artificial factors and by combining the application of remote sensing and geographical information system (GIS).
    土地荒漠化制图是生态环境专题制图的前沿领域 ,按照现代制图学的原理和土地荒漠化的分类体系 ,综合制图区域自然及人文要素的时空特征 ,应用遥感与GIS相结合的方法 ,编制了不同时期的专题类型图。 新技术的应用 ,反映了信息化时代数字制图技术在土地荒漠化专题制图中的应用潜力 ,极大地丰富了专题制图学的内涵。
 

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