ocmw.design.gradRaster module

Mesh gradation raster generation functions for parameter-based mesh refinement.

writeRasterFile	Write raster to netCDF file.
getRasterCoords	Get raster coordinates from netCDF file and generate gidded coordinates.
normalise	Normalise a variable about its mean value.
gradate	Convert a raster into a gradation between minimum and maximum values.
gradation2meshDensity	Convert a gradation raster into an equivalent mesh density assuming equilateral triangles.
gradation2numElems	Convert a gradation raster into an equivalent number of element assuming equilateral triangles.
distance2coast	Calculate the distance for a set of points (x,y) from features in a coastline shapefile.
rasterise	Convert a variable on an unstructured mesh into a raster.
vargradient	Calculate the spatial gradient of a mesh variable on a regular raster.
plotRaster	Plot as raster as a colourised image.

Mesh refinement functions for QMESH mesh gradation raster generation.

ocmw.design.gradRaster.writeRasterFile(rasterPath, baseRasterFile, rasterFile, raster)

Write raster to netCDF file.

ocmw.design.gradRaster.getRasterCoords(rasterPath, rasterFile)

Get raster coordinates from netCDF file and generate gidded coordinates.

ocmw.design.gradRaster.normalise(v)

Normalise a variable about its mean value.

ocmw.design.gradRaster.gradate(minval, maxval, var)

Convert a raster into a gradation between minimum and maximum values.

ocmw.design.gradRaster.gradation2meshDensity(gradation)

Convert a gradation raster into an equivalent mesh density assuming equilateral triangles.

ocmw.design.gradRaster.gradation2numElems(gradation, dx, dy)

Convert a gradation raster into an equivalent number of element assuming equilateral triangles.

ocmw.design.gradRaster.distance2coast(shpPath, shpFile, BndIDs, x, y)

Calculate the distance for a set of points (x,y) from features in a coastline shapefile.

ocmw.design.gradRaster.rasterise(x, y, v, xq, yq)

Convert a variable on an unstructured mesh into a raster.

ocmw.design.gradRaster.vargradient(x, y, v, xq, yq)

Calculate the spatial gradient of a mesh variable on a regular raster.

ocmw.design.gradRaster.plotRaster(x, y, raster, minval, maxval)

Plot as raster as a colourised image.