Screenshot of Xj3D rendering:
All based on a common data set of 2488 points, each point with associated normal direction coordinates and RGB color triple. This cloud is a random sample of the point cloud used to construct mesh model at https://www.kshell.com/pages/archimedes/index9.html
Download point cloud file [179 kB] pointset_2500.asc Text file, 1 point per line, 9 space delimited columns, column ordering X Y Z Nx Ny Nz R G B
Visualization using standard PointSet node with color assigned to each point
Download X3D File [129 kB]: pointset_archie.x3d
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DirectedPointSet is a Prototype node based on the X3D Mesh Design Pattern, a node combining a Coordinate node and a Normal node intended to represent a direction at each point of the cloud.
The Prototype used in this model uses a Script node as part of the Prototype body to prepare a LineSet node from the coordinate and vector data. Color-per-vertex data is ignored, replaced by LineProperties specified in the ProtoInstance declaration.
Download X3D File [136 kB] pointset_archie_dps.x3dYour browser may not support all features required by X_ITE. For a better experience, keep your browser up to date. Check here for latest versions.
Rendered with the Xj3D implementation of the PointProperties node proposed for X3D v4
Download X3D File [129 kB] pointset_archie_pp.x3d
The pointSizeAttenuation attribute for the PointProperties node was specified to provide a 1/(distance)^2 dependence of rendered point size -- results shown in this zoomed-in screenshot:
