Vertex Pool Topology for Well-Known Geometry


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Documentation for package ‘wkpool’ version 0.4.0

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arcs_to_wkb Convert arcs to WKT linestrings
arcs_to_wkt Convert arcs to WKT linestrings
arc_node_summary Summarize arc-node structure
as_arcs Convert arcs to a wkpool of arc segments
as_pslg Convert wkpool to a PSLG (planar straight line graph)
classify_cycles Classify cycles as outer rings or holes based on winding
cycles_to_wkb Convert cycles to WKT polygons
cycles_to_wkt Convert cycles to WKT polygons
cycle_signed_area Calculate signed area of a cycle
establish_topology Establish topology from any wk-handleable geometry
find_arcs Find arcs (maximal segment sequences between nodes)
find_cycles Find closed cycles (rings) in segment graph
find_internal_boundaries Find internal boundaries (edges shared by exactly 2 features, opposite direction)
find_neighbours Build adjacency from shared edges
find_nodes Find nodes (vertices where degree != 2)
find_shared_edges Find shared edges between features
hole_points Get hole points for constrained triangulation
merge_coincident Merge coincident vertices in a pool
new_wkpool Construct a wkpool from validated components
new_wkpool_tri Construct a triangle pool
plot.wkpool Plot a wkpool object
plot.wkpool_tri Plot a triangle pool
pool_combine Combine wkpool objects
pool_compact Compact a pool by removing unreferenced vertices
pool_feature Access components of a wkpool object
pool_holes Get hole points for constrained triangulation
pool_path Access components of a wkpool object
pool_paths Access components of a wkpool object
pool_segments Access components of a wkpool object
pool_triangles Access the triangles of a triangle pool
pool_triangulate Triangulate the polygons in a pool
pool_vertices Access components of a wkpool object
reverse_cycle Reverse a cycle's winding direction
segments_to_wkb Convert wkpool segments to WKT
segments_to_wkt Convert wkpool segments to WKT
topology_report Report topology diagnostics
tri_segments Access the triangles of a triangle pool
vec_c Combine many wkpool vectors into one vector
vec_c.wkpool Combine many wkpool vectors into one vector
vertex_degree Calculate vertex degree (number of segments touching each vertex)
wkpool Create a wkpool from a vertex table and a segment table
wkpool-accessors Access components of a wkpool object
wkpool-crs CRS and geodesic handling for wkpool
wk_crs.wkpool CRS and geodesic handling for wkpool
wk_handle.wkpool Handle wkpool objects with wk handlers
wk_handle.wkpool_tri Access the triangles of a triangle pool
wk_is_geodesic.wkpool CRS and geodesic handling for wkpool
wk_set_crs.wkpool CRS and geodesic handling for wkpool
wk_set_geodesic.wkpool CRS and geodesic handling for wkpool