有两种主要的数据模型可选择：栅格和矢量。
There are two major choices of data model: raster and vector.
应用程序使用两种不同的数据结构存储GIS数据：栅格数据和矢量数据。
Applications store GIS data using two distinct data structures: raster data and vector data.
该库为编程人员提供了通用的数据模型，包括所有栅格数据格式和矢量数据格式（通过OGR）。
The library gives programmers a common data model covering all raster data formats and -- through OGR -- vector data formats.
该SOCETGXPV3.2软件还增加了用于查看和编辑实况视频的自动化工具和用于转换地形分析结果(从栅格转为矢量文件格式)的高效工具。
The SOCET GXP v3.2 software release also adds automated tools for viewing and editing live video feeds, and efficient tools for converting terrain analysis results from raster to vector file format.
导入和导出矢量数据及栅格数据，实现多种GIS数据格式之间的转换。
Import and export vector and raster data, convert between different GIS data formats.
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。
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.
矢量格式数据和栅格格式数据的相互转换技术是实现GIS、RS结合的关键。
The key to realize the combining process of GIS and RS is the technique of format conversion between vector data and grid data.
研究无线覆盖场强计算中使用的射线分析法(矢量法)与像素分析法(栅格法)，并比较二者的区别和特性。
To study ray (vector) analysis and pixel (grid) analysis which are applied in the calculation of field strength of radio coverage, and compare their differences and characteristics.
矢量和栅格是GIS应用中两种基本的地学数据格式。
Vector and raster are two basic formats of geospatial data used in GIS.
矢量和栅格是GIS应用中两种基本的地学数据格式。
Vector and raster are two basic formats of geospatial data used in GIS.
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