utils.py File Reference

Namespaces
	ecohydrolib.spatialdata.utils
	Generic utilities for manipulating spatial data sets.

Functions
def	ecohydrolib.spatialdata.utils.bboxFromString (bboxStr)
	Get bbox dictionary from comma separated string of the form '-76.769782 39.273610 -76.717498 39.326008'. More...
def	ecohydrolib.spatialdata.utils.isValidSrs (srsString)
	Determine if spatial reference string is valid. More...
def	ecohydrolib.spatialdata.utils.getEPSGStringForUTMZone (zone, isNorth)
	Get EPSG string, e.g. More...
def	ecohydrolib.spatialdata.utils.getUTMZoneFromCoordinates (longitude, latitude)
	Determine the UTM zone for coordinate pair. More...
def	ecohydrolib.spatialdata.utils.transformCoordinates
	Transform a pair of X,Y coordinates from one reference system to another. More...
def	ecohydrolib.spatialdata.utils.getRasterExtentAsBbox (extentRasterFilepath)
	Determine raster extent and store it in a bbox along with the spatial reference system of the raster. More...
def	ecohydrolib.spatialdata.utils.extractTileFromRasterByRasterExtent
	Extract a tile from a raster using the extent of another raster as the tile bounds. More...
def	ecohydrolib.spatialdata.utils.extractTileFromRaster (config, outputDir, inRasterFilename, outRasterFilename, bbox)
	Extract a tile from a raster. More...
def	ecohydrolib.spatialdata.utils.resampleRaster
	Resample raster from one spatial reference system and resolution to another. More...
def	ecohydrolib.spatialdata.utils.rescaleRaster (config, outputDir, inRasterFilepath, outRasterFilename, scalar)
	Rescale DN values of raster. More...
def	ecohydrolib.spatialdata.utils.convertGMLToShapefile (config, outputDir, gmlFilepath, layerName, t_srs)
	Convert a GML file to a shapefile. More...
def	ecohydrolib.spatialdata.utils.convertGMLToGeoJSON
def	ecohydrolib.spatialdata.utils.convertGeoJSONToShapefile
	Convert a GeoJSON file to a shapefile. More...
def	ecohydrolib.spatialdata.utils.mergeFeatureLayers
	Combine vector feature files readable by OGR into a single feature layer. More...
def	ecohydrolib.spatialdata.utils.convertFeatureLayerToShapefile
	Convert a vector feature file readible by OGR to a shapefile. More...
def	ecohydrolib.spatialdata.utils.deleteShapefile (shpfilePath)
	Delete shapefile and its related files (.dbf, .prj, .shx) More...
def	ecohydrolib.spatialdata.utils.getCoordinatesOfPointsFromShapefile (shpFilepath, layerName, pointIDAttr, pointIDs)
	Get WGS84 coordinates of point features in shapefile. More...
def	ecohydrolib.spatialdata.utils.deleteGeoTiff (geoTiffPath)
	Delete GeoTIFF and its related files (.aux.xml) More...
def	ecohydrolib.spatialdata.utils.isCoordinatePairInBoundingBox (bbox, coordinates)
	Determine whether coordinate pair lies within bounding box. More...
def	ecohydrolib.spatialdata.utils.calculateBoundingBoxCenter (bbox)
	Calculate the central point of the bounding box. More...
def	ecohydrolib.spatialdata.utils.calculateBoundingBoxArea
	Calculate bbox area in squared units of srs. More...
def	ecohydrolib.spatialdata.utils.tileBoundingBox
	Break up bounding box into tiles if bounding box is larger than threshold. More...
def	ecohydrolib.spatialdata.utils.getBoundingBoxForShapefile
	Return the bounding box, in WGS84 (EPSG:4326) coordinates, for the ESRI shapefile. More...
def	ecohydrolib.spatialdata.utils.bufferBoundingBox (bbox, buffer)
	Buffer the bounding by a given percentage. More...
def	ecohydrolib.spatialdata.utils.getMeterConversionFactorForLinearUnitOfGMLfile (gmlFilename)
	Get conversion factor for converting a GML file's linear unit into meters. More...
def	ecohydrolib.spatialdata.utils.getMeterConversionFactorForLinearUnitOfShapefile (shpFilename)
	Get conversion factor for converting a shapefile's linear unit into meters. More...
def	ecohydrolib.spatialdata.utils.getNodataValuesForRaster (filename)
	Get nodata value for each band in a raster. More...
def	ecohydrolib.spatialdata.utils.getSpatialReferenceForRaster (filename)
	Get pixel size and unit for DEM. More...
def	ecohydrolib.spatialdata.utils.getDimensionsForRaster (filename)
	Get number of columns and rows for raster. More...
def	ecohydrolib.spatialdata.utils.getBoundingBoxForRaster (filename)
	Return the bounding box, in WGS84 (EPSG:4326) coordinates, for the raster dateset. More...
def	ecohydrolib.spatialdata.utils.writeBboxPolygonToShapefile
	Write bbox to a shapfile. More...
def	ecohydrolib.spatialdata.utils.writeCoordinatePairsToPointShapefile
	Write coordinates as a point shapefile. More...
def	ecohydrolib.spatialdata.utils.copyRasterToGeoTIFF (config, outputDir, inRasterPath, outRasterName)
	Copy input raster from a location outside of outputDir to a GeoTIFF format raster stored in outputDir. More...

Variables
int	ecohydrolib.spatialdata.utils.SHP_MINX = 0
int	ecohydrolib.spatialdata.utils.SHP_MAXX = 1
int	ecohydrolib.spatialdata.utils.SHP_MINY = 2
int	ecohydrolib.spatialdata.utils.SHP_MAXY = 3
list	ecohydrolib.spatialdata.utils.RASTER_RESAMPLE_METHOD = ['near', 'bilinear', 'cubic', 'cubicspline', 'lanczos', 'average', 'mode']
int	ecohydrolib.spatialdata.utils.WGS84_EPSG = 4326
string	ecohydrolib.spatialdata.utils.WGS84_EPSG_STR = 'EPSG:4326'
float	ecohydrolib.spatialdata.utils.NORTH = 0.0
float	ecohydrolib.spatialdata.utils.EAST = 90.0
float	ecohydrolib.spatialdata.utils.BBOX_TILE_DIVISOR = 1.0
string	ecohydrolib.spatialdata.utils.OGR_SHAPEFILE_DRIVER_NAME = 'ESRI Shapefile'
string	ecohydrolib.spatialdata.utils.OGR_GEOJSON_DRIVER_NAME = 'GeoJSON'
dictionary	ecohydrolib.spatialdata.utils.OGR_DRIVERS
tuple	ecohydrolib.spatialdata.utils.EPSG_RE = re.compile('^epsg:\d+$')
tuple	ecohydrolib.spatialdata.utils.GDAL_VERSION_RE = re.compile('^GDAL\s(\d{1,2})\.(\d{1,2})\.(\d{1,2}),\sreleased\s\d{4}/\d{2}/\d{2}\s*$')