Finally, the experiment demonstrates that the method is a highly efficient scheme to automatically convert classified raster map to general format GIS data.
实验表明，该方法是一种由遥感分类图自动转换成g IS通用数据的高效方案。
In this paper, we analyzed the relations between pixel and pixel in the classified raster map. Based on the relations, all vector points and the connection information between them can be extracted.
本文通过分析遥感分类图栅格像元之间的关系，快速自动地提取矢量数据点及其连接信息，进而利用连接信息快速生成弧段，由弧段自动组建多边形并建立完整的拓扑关系。
Vector data require far less storage than raster data because arc node lists simplify and reduce the data required to make sense of the features contained in the map.
矢量数据要求的存储要比栅格数据少得多，因为弧节点列表简化并减少了表示地图中包含的特征所需的数据。
By having your map consume MapServer-driven Web map service (WMS) services, you can also include your own datasets, such as shapefiles and raster data.
通过让地图使用MapServer驱动的WebMapService (WMS)服务，还可以将您自己的数据集包括进来，比如shapefile和raster数据。
Map projection transformation of vector data is becoming mature presently, but research and application of raster data projection transformation in GIS needs further efforts.
当前GIS中矢量数据的投影变换已日趋成熟，而栅格数据的投影变换的研究与应用还需要进一步的深入。
Putting forward the change statistic method based on acreage, and counting the varieties of vector map data by using polygon intersection of vector data and changed pixel of raster data.
提出基于面积的变化统计方法，分别利用矢量数据的多边形交集和栅格数据的变化像素来统计地图矢量数据的变化。
First, the basic principles of geometry rectification of digital aerial images and raster relief map are introduced and thus the accuracy of geometry rectification is improved.
首先，重点阐述了数字航空影像几何纠正，以及栅格地图变形纠正的基本原理，进一步提高了几何纠正的精度。
Its capabilities include: data input, geographical analysis (raster, vector and site), manipulate multi-spectral images and map display.
其功能包括：数据输入、地理分析(栅格、矢量、点)、多光谱图像处理、地图显示。
And then he proposes a set of solution for cutting map image and storage of mass raster image.
最后提出了一种基于四叉树索引的海量图片的存储与检索方法。
And then he proposes a set of solution for cutting map image and storage of mass raster image.
最后提出了一种基于四叉树索引的海量图片的存储与检索方法。
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