Input & Output

Some basic input/output routines for point clouds.

Input

Example: Read in a point cloud.

#include "geometrycentral/pointcloud/point_cloud.h"
#include "geometrycentral/pointcloud/point_position_geometry.h"
#include "geometrycentral/pointcloud/point_cloud_io.h"

using namespace geometrycentral;
using namespace geometrycentral::pointcloud;

std::unique_ptr<PointCloud> cloud;
std::unique_ptr<PointPositionGeometry> geom;
std::tie(cloud, geom) = readPointCloud("my_cloud.ply");

// do science!

std::tuple<std::unique_ptr<PointCloud>, std::unique_ptr<PointPositionGeometry>> readPointCloud(std::string filename, std::string type = "")

Read a point cloud from file, constructing both the cloud and geometry objects.

Currently accepted file types: ply, obj. Using the default empty type string will attempt to infer from the filename.

std::tuple<std::unique_ptr<PointCloud>, std::unique_ptr<PointPositionGeometry>> readPointCloud(std::istream& in, std::string type)

Like above, but reads directly from an istream. The type must be specified explicitly.

Output

Example: Write out a point cloud.

#include "geometrycentral/pointcloud/point_cloud.h"
#include "geometrycentral/pointcloud/point_position_geometry.h"
#include "geometrycentral/pointcloud/point_cloud_io.h"

using namespace geometrycentral;
using namespace geometrycentral::pointcloud;

// your cloud & point positions, populated somehow
std::unique_ptr<PointCloud> cloud;
std::unique_ptr<PointPositionGeometry> geom;

writePointCloud(*cloud, *geom, "cloud_out.ply");

void writePointCloud(PointCloud& cloud, PointPositionGeometry& geometry, std::string filename, std::string type = "")

Write a point cloud to file.

Currently accepted file types: ply, obj. Using the default empty type string will attempt to infer from the filename.

void writePointCloud(PointCloud& cloud, PointPositionGeometry& geometry, std::ostream& out, std::string type)

Like above, but writes directly to an ostream. The type must be specified explicitly.