Changes in version 0.5.5 (2022-08-31)                  

  - Fixed CRAN issues about html tag attributes, viridis unused import,
    and removed rgl doc links.

                 Changes in version 0.5.0 (2021-01-11)                  

  - cleaned up dependencies for CRAN policies

                 Changes in version 0.4.5 (2020-04-15)                  

  - 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.

                        Changes in version 0.4.1                        

  - Patch release to improve example plot that would sometimes crash.

                 Changes in version 0.4.0 (2019-04-06)                  

  - Fixed bug is mesh3d creation, partial naming of material$color
    caused various problems.

                 Changes in version 0.3.0 (2019-01-16)                  

  - 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.

                 Changes in version 0.2.0 (2018-11-13)                  

  - The quadmesh functions gains a texture argument, to map on a 3-layer
    RGB raster (in 0-255) via a temporary PNG file.

  - New function mesh_plot for basic vectorized raster plot with
    optional near near-lossless projection transformation.

  - Index arrays are now created with integer mode.

  - Added triangulate_quads function to convert quad index to pairs of
    triangle index.

  - Added supporting information to package.

  - Internal function llh2xyz is now exported to transform from
    longitude latitude coordinates to geocentric xyz coordinates.

                 Changes in version 0.1.0 (2016-06-12)                  

  - Basic quad mesh support.