Add Unstructured Grid class #1751
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Properties and procedures that are common to unstructured grids and structured grids are defined in the BaseGrid class. This includes lon, lat, time, time_origin, and mesh properties. The Grid class is now defined as a type extension of BaseGrid. This configuration is compatible with the previous commit of Parcels (all existing tests pass). The _zonal_periodic, _zonal_halo, _meridional_halo, and _lat_flipped properties are seen as attributes specific to the structured grid. The UGrid class is defined as a type extension of the BaseGrid. This child class adds the `face_node_connectivity` property that relates vertices to the 2-D lateral grid faces. The lon and lat attributes refer to the `node_lon` and `node_lat` that are defined in the uxarray.Grid structure; these are the corner node vertices. Note that there are other possible nodes, including the edge vertices (centers of the edges), and `face_vertices` that define the element centroids; these are currently not defined.
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@erikvansebille @VeckoTheGecko From the state it's in, I'll need to work on a This PR is meant to go to the ELPHE-WW Fork's main branch so that we have a safe "playground" to explore. Your comments and feedback are most welcome before further changes are made. |
fluidnumerics-joe
changed the title
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Thanks @fluidnumerics-joe, for starting this work. Your plan sounds great to me. I quickly went through the code, and that also looks fine. Some issues to fix with the CI obviously, but I don't think these are huge problems |
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Looks good! |
…c for ugrid In the ufield class, I've sketched out the methods that we need to define in order to do 2D and 3D interpolation. Once these are in place, I'll kick off some examples that "regrid" onto structured grid and interpolate onto random particles.
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Will be reworked in v4 |
3 participants
Properties and procedures that are common to unstructured grids and structured grids are defined in the
BaseGridclass. This includeslon,lat,time,time_origin, andmeshproperties.The
Gridclass is now defined as a type extension ofBaseGrid. This configuration is compatible with the previous commit of Parcels (all existing tests pass). The_zonal_periodic,_zonal_halo,_meridional_halo, and_lat_flippedproperties are seen as attributes specific to the structured gridGridclass.The
UGridclass is defined as a type extension of theBaseGrid. This child class adds theface_node_connectivityproperty that relates vertices to the 2-D lateral grid faces. The lon and lat attributes refer to thenode_lonandnode_latthat are defined in theuxarray.Gridstructure; these are the corner node vertices. Note that there are other possible nodes, including the edge vertices (centers of the edges), andface_verticesthat define the element centroids; these are currently not defined.