Moved large examples/ folder from inst/ to data-raw/ to avoid it being installed.

Remove failing test comparing unimportant differences in geocentric transformation.

quadmesh now works with upcoming release of reproj (> 0.4.0).

Fixed failing CRAN test by internalizing use of hcl.colors().

mesh_plot() now has a method for mesh3d. Intention is to use mesh3d as the common basis for mesh_plot().

WIP new use_crs() facility to set the projection in use when setting up a mesh_plot. Subsequent calls to mesh_plot(, add = TRUE) will automatically project to the coordinate system in use. use_crs() will set or get the PROJ string.

mesh_plot() now has a method for mesh3d. Intention is to use mesh3d as the common basis for mesh_plot(). Now using palr package for colour handling.

WIP new use_crs() facility to set the projection in use when setting up a mesh_plot. Subsequent calls to mesh_plot(, add = TRUE) will automatically project to the coordinate system in use. use_crs() will set or get the PROJ string.

New feature in quadmesh() to auto-expand a palette raster to the required RGB brick for the texture argument. Motivated by https://gis.stackexchange.com/questions/324552/creating-3d-image-from-hgt-files.

Simplified use of reproj() by relying on upcoming new version.

Function mesh_plot() now handles stars objects, only plotting the first x-y slice.

Function mesh_plot gains zlim and passes ... to base::plot() (for aspect ratios with wildly disparate dwide/high grids).

Now using the reproj package for coordinate transformations.

New mesh_plot() method for TRI objects from silicate/anglr.

New function dquadmesh to provide the discrete interpretation of a grid.

New function bary_index to provide a basis for interpolation of a regular grid from triangles.

New functions triangmesh() and dtriangmesh to provide the triangle-interpretation of a raster (bound to centre coordinates).

quadmesh() is now generic with a new method for ‘matrix’.

Some fixes and additional features for mesh_plot() to allow plotting with curvilinear coords.

New function qm_as_raster to round-trip to a RasterLayer.

The z argument of quadmesh() may now have a different coordinate system to the input data x. The mesh coordinates of x are silently reprojected if needed and used to extract values in the native coordinate system of z.

A new qsc function to return a very simple six quad rendition of the Quadrilateralized Spherical Cube projection family.

The mesh_plot function gains true curvilinear grid support by allowing input of coords, a two-layer raster of longitude and latitude values for the cell geography. This aligns with the approach used in the angstroms package.

The quadmesh function gains a new argument ‘texture_filename’ to control the output PNG file.