Vector data is a representation of the world using points, lines, and polygons. This data is created by digitizing the base data, and it stores information in x, y coordinates. Vector data is one of two primary types of spatial data in geographic information systems (GIS) – the other ...
Overview Product Support Support Services GIS Dictionary Contact Support GIS DictionaryBrowse dictionary # A B C D E F G H I J K L M N O P Q R S T U V W X Y Zvector data Share URL [modeling] Data in point, line, or area (polygon) format. See also line point polygon ...
GIS Dictionary Browse dictionary # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z vector URL copiedShare URL [data models]A coordinate-based data model that represents geographic features as points, lines, and polygons. Each point feature is represented as a single ...
Define Vector image. Vector image synonyms, Vector image pronunciation, Vector image translation, English dictionary definition of Vector image. n. a method of electronically coding graphic images so that they are represented in lines rather than fixed b
can be orderly embedded and extracted.Finally,according to the definition of difference,this article judges the imperceptibility of watermark algorithm for the GIS vector data through the operation of spatial analysis.The experiments show that the DEAWA possesses excellent imperceptibility and ...
ContingentValuesDefinition ContingentValuesResult CoordinateFormatter CostAttribute Credential CredentialCache CubicBezierSegment DashGeometricEffect DateOnly DatumTransformation DefaultLocationDataSource DictionaryRenderer DictionarySymbolStyle DictionarySymbolStyleConfiguration DimensionLayer DirectionEvent DirectionManeuver Dire...
Multi-scale representation of spatial data is a research focus in GIS, while building multi-scale data model is a key to implementing multi-scale representation of vector data. In view of the shortcomings of existing multi-scale data model in geographical cognition and special analysis, this paper...
(x 1 ,y 1 ) PointsLinesPolygons Continuoussurface RasterandVectorData PointPoint LineLine PolygonPolygon VectorVectorRasterRaster Rasterdataaredescribedbyacellgrid,onevaluepercell Zoneofcells RasterandVectoraretwomethods ofrepresentinggeographicdatain GIS •Bothrepresentdifferentwaystoencodeand generalize...
Visualizing vector data on 3D terrain surfaces is a basic and essential function in 3D GIS. However, due to the complexity of vector data structures, efficient and effective organization of the vector data is a key issue for the efficient display of vector data in 3D. In this paper, we pre...
The results show that Geohash encoding can accurately represent latitude and longitude coordinates in vector maps, while the GeohashTile framework has obvious advantages when requesting data volume and average load time compared to the state-of-the-art GeoTile system. Keywords: GIS; Geohash; ...