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 ...
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 ...
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
The extension of the map algebra programming language to vector map algebra (VMA) is proposed as a means to provide a generic implementation of the vector field data model in a GIS. Chapters 1 & 2 describe the significance of the problem and the main issues of dynamic modelling in GIS, ...
ContingentValuesDefinition ContingentValuesResult CoordinateFormatter CostAttribute Credential CredentialCache CubicBezierSegment DashGeometricEffect DateOnly DatumTransformation DefaultLocationDataSource DictionaryRenderer DictionarySymbolStyle DictionarySymbolStyleConfiguration DimensionLayer DirectionEvent DirectionManeuver Dire...
LineLine PolygonPolygon VectorVectorRasterRaster Rasterdataaredescribedbyacellgrid,onevaluepercell Zoneofcells RasterandVectoraretwomethods ofrepresentinggeographicdatain GIS •Bothrepresentdifferentwaystoencodeand generalizegeographicphenomena •Bothcanbeusedtocodebothfieldsand discreteobjects •Inpracticeastrong...
The paper describes a vector field data model, which relates well to the field data model commonly implemented in GIS using a raster data type, and demonstrates its application for landscape characterization and hydrological modeling in GIS. The main contribution of this paper is the definition of...
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...
Processing both raster and vector data with the same semantic and in an efficient way presents significant challenges to GIS insofar as underlying granularities but also data layout and processing patterns might be absolutely different. We have already focused on the definition and the implementation ...
in advance so that the watermark 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 ...