ESRI. 2001. ArcGIS Spatial Analyst: Advanced GIS Spatial Analysis Using Raster and Vector Data. ESRI, New York.ESRI. ArcGIS Spatial Analyst: Advanced GIS Spatial Analysis Using Raster and Vector Data (2001).ESRI
GIS基础知识(一) 一、raster data 栅格数据和vector data矢量数据 栅格数据模型用格网和格网像元表达连续区域,平时常用的png、jpeg图像都属于栅格数据。 基于栅格的空间模型把空间看作像元(Pixel)的划分(Tessellation),每个像元都与分类或者标识所包含的现象的一个记录有关。像元与“栅格”两者都是来自图像处理的内容,...
GIS datacan be separated into two categories: spatially referenced data which is represented by vector and raster forms (including imagery) and attribute tables which is represented in tabular format. Within thespatial referenced datagroup, the GIS data can be further classified into two different ty...
Natural Earth Datais number 1 on the list because it best suits the needs of cartographers. By and large, all the key cultural and physical vector GIS datasets are on a global scale convenient for you to use. The raster datasets also provide beautiful hillshade relief for your map. The be...
The two primary types of spatial data arevector and raster datain a GIS. But what is the difference between raster and vector data? When should we use raster and when should we use vector features? Find out more about the spatial data models commonly used. ...
Vector data, maps, elevation, satellite imagery and ready-to-go GIS projects in ESRI Shape, GeoPackage, Geodatabase, GeoJSON, KML, CSV, TAB, PBF, XML, SQL and GeoTIFF formats for QGIS, ArcGIS, ArcMap, Mapinfo, Excel, PostgreSQL, PostGIS, Google Earth
4. 矢量数据和栅格数据 (Vector Data and Raster Data) 终于说到矢量数据和栅格数据了,几乎所有人提到GIS都会现将这个点提出来。几乎只要提问是有关GIS的,下面的回答里就一定会有人将GIS的矢量数据和栅格数据拿出来讲解一番。准确来说,矢量数据和栅格数据并不算是数据的类型,而是GIS之中的两大数据结构。 矢量数...
矢量(Vector) 矢量数据不是由像元组成的,矢量数据是由节点和路径组成的。三中常见的矢量类型: 点(Points) 线(Lines) 面(Polygons) Esri Shapefile 文件类型 .SHP .DBF .SHX 描述 Shapefile是最常见的矢量数据格式,所有的商业和开源GIS软件都支持。无处不在的它已成为行业标准。Shapefile由三个必须的文件组成: ...
Open Data Achieving data flow ArcGIS enables interoperability of all GIS data types, formats, and specifications of data. Users can bring vector and raster data into and out of the system in their format of choice. Many organizations also use ArcGIS to share and work with open data so they ...
IDRISI Vector 格式:.VCT、.VDC IDRISI vector矢量数据文件具有VCT扩展名以及具有VDC扩展名的关联矢量文档文件。 VCT格式仅限于点,线,多边形,文本和照片。创建IDRISI矢量文件后,它将自动创建用于构建元数据的文档文件。 属性直接存储在矢量文件中。但是您可以选择使用独立的数据表...