For example, if the raster is vectorized into a polygons object each cell will become a separate polygon. If TRUE (default) then union all points/lines/polygons with the same value into the same 'multipart' polygon. Indicates type of output: point, line (not supported yet), or area. It can convert a raster to points or polygons (conversion to lines is not yet supported, although it is possible using the r.to.vect module in GRASS).Įither a raster or the name of a raster in an existing GRASS session.Ĭharacter. This function is a potentially faster version of the function rasterToPolygons in the raster package. workerFocal: Initialize GRASS session and import raster and/or vector(s).Ĭonvert a raster to a vector (points, lines, or polygons) Description.madRivers: Spatial data: major rivers in a selected portion of.madForest2000: Spatial data: forest cover in 2000 for a portion of.madElev: Spatial data: digital elevation model (DEM) of a portion of.mad4: Spatial data: borders of selected districts of Madagascar.mad0: Spatial data: national borders of Madagascar.initGrass: Initialize GRASS session and import raster and/or vector(s).fragmentation: Calculate fragmentation indices for a raster.fasterVectToRastDistance: Distance between raster cells and nearest spatial point.fasterVectorize: Convert a raster to a vector (points, lines, or polygons).fasterTopidx: Generate topographic wetness index raster.fasterTerrain: Calculate raster slope, aspect, curvature, and partial.fasterSurfFractal: Generate a raster with a fractal pattern.fasterSun: Calculate solar radiance and irradiation.fasterRasterize: Rasterize using a call to GRASS GIS.fasterRaster: fasterRaster: Faster raster processing in R using GRASS GIS.fasterRastDistance: Distance distance between cells with 'NA's and closest.fasterQuantile: Compute quantiles for a raster.fasterProjectRaster: Project and resample a raster.fasterMapcalc: User-defined calculations on a single raster.fasterLongLatRasters: Calculate longitude and latitude rasters.fasterHorizon: Calculate horizon angle height raster.fasterFragmentation: Calculate fragmentation indices for a raster.fasterFocal: Multi-core version of the focal() function.fasterConvertDegree: Convert degrees between cases with 0 = north and 0 = east.

fasterContour: Calculate contour vectors from a raster.fasterCalc: Apply a formula to each cell of a raster.fasterBufferRast: Add a buffer to a raster.faster: Generic function to call a GRASS module.exportVectToGrass: Write vector to an existing GRASS session.exportRastToGrass: Write raster to an existing GRASS session.dot-getCores: Calculate number of cores to use for multi-core functions.dot-fragDensity: Calculate density (pf, or proportion of cells occupied) from.dot-fragConnect: Calculate pff (connectivity between cells) of a binary matrix.dot-fragClassify: Classify fragmentation from density (pf) and connectivity.

Convert raster to vector arc map