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Point Clouds

Point clouds are one of the core structures in Polyscope. In addition to simply displaying the points, Polyscope can show any number of scalar, vector, or color quantities associated with the points.

As always, try clicking on a point to see the data associated with that point.

point_cloud_demo

Registering a point cloud

Example: a point cloud of random points

#include "polyscope/point_cloud.h"

std::vector<glm::vec3> points;

// generate points
for (size_t i = 0; i < 3000; i++) {
  points.push_back(
      glm::vec3{polyscope::randomUnit() - .5, 
                polyscope::randomUnit() - .5, 
                polyscope::randomUnit() - .5});
}

// visualize!
polyscope::registerPointCloud("really great points", points);

polyscope::registerPointCloud(std::string name, const T& pointPositions)

Add a new point cloud structure to Polyscope.

  • pointPositions is the array of 3D point locations. The type should be adaptable to an array of float-valued 3-vectors. The length will be the number of points.

Note: the inner vector type of the input must be 3D dimensional, or you risk compiler errors, segfaults, or worse. If you want to register a 2D point cloud, registerPointCloud2D exists with the same signature. See 2D data.