sdf_reader.h

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#pragma once
 
#include <array>
#include <string>
#include <vector>
 
struct SDFData {
  std::vector<float> sdf_values;  // Flattened SDF grid
  std::array<int, 3> resolution;
  std::array<float, 3> origin;
  std::array<float, 3> spacing;
 
  // Helper to get total number of elements
  size_t size() const { return resolution[0] * resolution[1] * resolution[2]; }
};
 
class SDFReader {
 public:
  static SDFData read_vti(const std::string& filename);
};