There are two major choices of data model: raster and vector.
有两种主要的数据模型可选择：栅格和矢量。
The merging of raster and vector image can be carried out by creating WORLD file relevant to the raster image.
通过创建与栅格图像相对应的WORLD文件，可以实现栅格图像与矢量图的融合。
As a very important means in raster-to-vector conversion of engineering drawing, the technique of mixture edition of raster and vector is more and more attached importance to.
作为工程图样矢量转换过程中一个十分重要的手段，光栅图像与矢量图形的混合编辑技术越来越受到人们的重视。
Geographical information systems development and optimize the structure of spatial data closely, raster and vector data efficient conversion of data between the GIS is one of the key technologies.
地理信息系统开发和优化的空间数据结构紧密，光栅和矢量数据之间的地理信息系统数据的有效转换的关键技术之一。
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。
QGIS handles all three — raster, vector, and database — a state of affairs that took considerable effort for programmers writing GIS data programming libraries.
QGIS处理所有三种数据——栅格数据、矢量数据和数据库，这也是编写GIS数据编程库的程序员的重要努力方向。
Applications store GIS data using two distinct data structures: raster data and vector data.
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。
In this example, GQview has the broadest coverage for the picture-viewing functionality: Gimp for raster graphics and InkScape for vector graphic handling.
在这个示例中，GQview提供最广泛的图片查看功能：Gimp用于处理光栅图像，InkScape用于矢量图像处理。
The library gives programmers a common data model covering all raster data formats and -- through OGR -- vector data formats.
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 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.
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。
QGIS handles all three - raster, vector, and database - a state of affairs that took considerable effort for programmers writing GIS data programming libraries.
QGIS处理所有三种数据栅格数据、矢量数据和数据库，这也是编写GIS数据编程库的程序员的重要努力方向。
Import and export vector and raster data, convert between different GIS data formats.
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。
It includes image preprocessing, graphics auto-recognition, graphics format conversion and human-computer interactive method, such as raster image edition and vector graphics edition.
它包括图像预处理、自动矢量化、图形格式转换以及人工交互方式的光栅图像和矢量图形编辑等功能。
Discusses methods for drawing vector and raster images with managed code.
讨论用托管代码绘制矢量图像和光栅图像的方法。
The world of graphics output devices is divided into two broad groups: raster devices and vector devices.
图形输出设备世界分成两个主要团体：光栅设备和矢量设备。
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。
The vectorization of raster images including two steps: image division and vector getting.
光栅图像的矢量化主要由图像分割及矢量获取两部分组成。
Instead of assigning colors to pixels as we do in raster graphics, a vector-graphics format describe an image in terms of lines and geometric shapes.
矢量图形格式不像光栅图形那样把颜色赋予像素，而是用线段活几何形状描述图像。
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。
Some parts have been researched which are approach for mutual transferring between vector structure and raster structure, the switchover of different data format. This thesis has three parts.
空间数据处理内容广泛，本文选择空间数据处理领域的矢量数据结构与栅格数据结构之间的相互转换、不同空间数据格式的数据转换方法等几个方面作为研究的内容。
And the integrating raster with vector technology predigests the polygon overlaying operation, realizes inner span part vectorizing and speed up the process.
采用矢量与栅格结合的技术进行更新，简化了矢量多边形叠交运算，实现了图斑内部的局部矢量化，提高了处理速度。
The interactive extraction of raster element and rasterization of vector becomes the kernel of this technique.
光栅图元的交互提取和矢量图形的光栅化过程是这一技术的核心。
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。
It intuitively combines rock solid and crisp vector art with flexible layer management and an impressive range of high quality raster tools for finishing.
它结合了坚实的和清晰直观地整理柔性层的管理和高质量的一系列令人印象深刻的艺术载体栅格工具。
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。
Explains how to crop and scale vector and raster images.
说明如何裁剪和缩放向量和点阵影像。
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。
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。
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