filters.greedyprojection

The Greedy Projection filter creates a mesh (triangulation) in an attempt to reconstruct the surface of an area from a collection of points.

GreedyProjectionTriangulation is an implementation of a greedy triangulation algorithm for 3D points based on local 2D projections. It assumes locally smooth surfaces and relatively smooth transitions between areas with different point densities. The algorithm itself is identical to that used in the PCL library.

Default Embedded Stage

This stage is enabled by default

Example

{
  "pipeline":[
    "input.las",
    {
      "type": "filters.greedyprojection",
      "multiplier": 2,
      "radius": 10
    },
    {
      "type":"writers.las",
      "filename":"output.las"
    }
  ]
}

Options

multiplier
Nearest neighbor distance multiplier. [Required]
radius
Search radius for neighbors. [Required]
num_neighbors
Number of nearest neighbors to consider. [Required]
min_angle
Minimum angle for created triangles. [Default: 10 degrees]
max_angle
Maximum angle for created triangles. [Default: 120 degrees]
eps_angle
Maximum normal difference angle for triangulation consideration. [Default: 45 degrees]