Raster Nng V1.0 Download
Odina Conkright
Introduction: Returns the centroid (point geometry) of the specified pixel's area.The pixel coordinates specified are 1-indexed.If colX and rowY are out of bounds for the raster, they are interpolated assuming the same skew and translate values.
Introduction: Returns a polygon geometry that bounds the specified pixel.The pixel coordinates specified are 1-indexed. If colX and rowY are out of bounds for the raster, they are interpolated assuming the same skew and translate values.
Introduction: Return the convex hull geometry of the raster including the NoDataBandValue band pixels. For regular shaped and non-skewed rasters, this gives more or less the same result as RS_Envelope and hence is only useful for irregularly shaped or skewed rasters.
Introduction: Returns the min convex hull geometry of the raster excluding the NoDataBandValue band pixels, in the given band.If no band is specified, all the bands are considered when creating the min convex hull of the raster. The created geometry representing the min convex hull has world coordinates of the raster in its CRS as the corner coordinates.
Introduction: Returns the upper left X coordinate of the given row and column of the given raster geometric units of the geo-referenced raster. If any out of bounds values are given, the X coordinate of the assumed point considering existing raster pixel size and skew values will be returned.
Introduction: Returns the upper left Y coordinate of the given row and column of the given raster geometric units of the geo-referenced raster. If any out of bounds values are given, the Y coordinate of the assumed point considering existing raster pixel size and skew values will be returned.
RS_ScaleX attempts to get an Affine transform on the grid in order to return scaleX (See World File for more details). If the transform on the geometry is not an Affine transform, RS_ScaleX will throw an UnsupportedException:UnsupportedOperationException("Only AffineTransform2D is supported")
RS_ScaleY attempts to get an Affine transform on the grid in order to return scaleX (See World File for more details). If the transform on the geometry is not an Affine transform, RS_ScaleY will throw an UnsupportedException:UnsupportedOperationException("Only AffineTransform2D is supported")
If the given geometry point is not in the same CRS as the given raster, the given geometry will be transformed to the given raster's CRS. You can use ST_Transform to transform the geometry beforehand.
Introduction: Returns a new raster consisting 1 or more bands of an existing raster. It can build new rasters fromexisting ones, export only selected bands from a multiband raster, or rearrange the order of bands in a raster dataset.
Introduction: Returns the no data value of the given band of the given raster. If no band is given, band 1 is assumed. The band parameter is 1-indexed. If there is no no data value associated with the given band, RS_BandNoDataValue returns null.
Introduction: Adds a new band to a raster toRaster at a specified index toRasterIndex. The new band's values are copied from fromRaster at a specified band index fromBand. If no toRasterIndex is provided, the new band is appended to the end of toRaster. If no fromBand is specified, band 1 from fromRaster is copied by default.
If crop is not specified then it will default to true, meaning it will make the resulting raster shrink to the geometry's extent and if noDataValue is not specified then the resulting raster will have the minimum possible value for the band pixel data type.
Introduction:Resamples a raster using a given resampling algorithm and new dimensions (width and height), a new grid corner to pivot the raster at (gridX and gridY) and a set of georeferencing attributes (scaleX and scaleY).
RS_Resample also provides an option to pass a reference raster to draw the georeferencing attributes out of. However, the SRIDs of the input and reference raster must be same, otherwise RS_Resample throws an IllegalArgumentException.
The useScale parameter controls whether to use width-height or scaleX-scaleY. If useScale is false, the provided widthOrScale and heightOrScale values will be floored to integers and considered as width and height respectively (floating point width and height are not allowed). Otherwise, they are considered as scaleX and scaleY respectively.
Currently, RS_Resample does not support skewed rasters, and hence even if a skewed reference raster is provided, its skew values are ignored. If the input raster is skewed, the output raster geometry and interpolation may be incorrect.
The default algorithm used for resampling is NearestNeighbor, and hence if a null, empty or invalid value of algorithm is provided, RS_Resample defaults to using NearestNeighbor. However, the algorithm parameter is non-optional.
Introduction: This sets the no data value for a specified band in the raster. If the band index is not provided, band 1 is assumed by default. Passing a null value for noDataValue will remove the no data value and that will ensure all pixels are included in functions rather than excluded as no data.
Introduction: Sets the Georeference information of an object in a single call. Accepts inputs in GDAL and ESRI format.Default format is GDAL. If all 6 parameters are not provided then will return null.
Introduction: Returns a raster by replacing the values of pixels in a specified rectangular region. The top left corner of the region is defined by the colX and rowY coordinates. The width and height parameters specify the dimensions of the rectangular region. The new values to be assigned to the pixels in this region can be specified as an array passed to this function.
To bridge the gap between the raster and map algebra worlds, the following operators are provided. These operators convert a raster to a map algebra object. The map algebra object can then be used with the map algebra operators described in the next section.
The bandIndex is 1-based and must be between 1 and RS_NumBands(raster) + 1. It throws an exception if the bandIndex is out of range or the raster is null. If not specified, the noDataValue of the band is assumed to be null.
RS_MapAlgebra runs a script on a raster. The script is written in a map algebra language called Jiffle. The script takes a rasteras input and returns a raster of the same size as output. The script can be used to apply a map algebra expression on a raster. The input raster is named rast in the Jiffle script, and the output raster is named out.
EU-DEM v1.0 is a digital surface model (DSM) representing the first surface as illuminated by the sensors. It is a hybrid product based on SRTM and ASTER GDEM data fused by a weighted averaging approach and generated as a contiguous dataset divided into 1 degree by 1 degree tiles, corresponding to the SRTM naming convention. The spatial reference system is geographic, lat/lon with horizontal datum ETRS89, ellipsoid GRS80 and vertical datum EVRS2000 with geoid EGG08. These tiles have then been aggregated into 5x5 tiles which have been projected to ETRS-LAEA by the Joint Research Centre (JRC) of the European Commission.
Access to data is based on a principle of full, open and free access as established by the Copernicus data and information policy Regulation (EU) No 1159/2013 of 12 July 2013. This regulation establishes registration and licensing conditions for GMES/Copernicus users.
The EU-DEM v1.0 is derived from an automated data fusion process using SRTM and ASTER GDEM digital surface model (DSM) data. Intermap's NEXTMap Europe dataset is utilized to remove any consistent horizontal bias in the GDEM data. The EU-DEM v1.0 is edited to ensure that water features are adequately represented and consistent with the hydrography layer. Residual clouds within the GDEM data are identified and removed same as suspect data extremely differing from the SRTM data. All EU-DEM tiles are edited interactively in a 3D stereo environment. The editing is restricted to the hydrographical features and pits and bumps. In areas above 60 degrees North, the EU-DEM generation process is supported by other DEM data sources provided by the JRC. Water features are flattened (oceans, lakes) and stepped (rivers) based on the hydrography data. The spatial reference system is geographic, lat/lon with horizontal datum ETRS89, ellipsoid GRS80 and vertical datum EVRS2000 with geoid EGG08.
ESRI offers a C++ API (for Linux and Windows), so I guess in principle it should be possible for an R package to retrieve (and write) data to a Geodatabase. I could not find any packages capable of doing this though.
Which suggest gdal supports file geodatabase. Probably, R then also supports the format through a properly built rgdalpackage. In essence, if the standalone gdal has support, the rgdal package built against that should also read the file geodatabase.
Unfortunately, this means that you will need to use ESRI tools to export your raster layers to a format that you can use in R. Hopefully there will soon be an open source solution for accessing ESRI GDBs.
The NSW Native Vegetation Extent 5m Raster v1.4 was developed under the State Vegetation Type Map program (SVTM) and presents a single surface raster that combines the best available information on native vegetation extent for NSW. The surface differentiates tree cover from candidate native grasslands, water, forestry plantations and a woodland matrix from non-native areas.
The NSW Native Vegetation Extent 5m Raster v1.4 is an integration of five existing datasets which map candidate native vegetation and water bodies for NSW. The sourcing rules from each dataset are documented in the metadata statement at the link below.
When loading a map, if PrefetchZoomDelta is set to any number greater than 0, the map will first request a tile at zoom level lower than zoom - delta, but so that the zoom level is multiple of delta, in an attempt to display a full map at lower resolution as quick as possible. It will get clamped at the tile source minimum zoom. The default delta is 4.
b1e95dc632