Function writePoints3DText

src/parsers/colmapTextWriters.ts:88–123

(points3D: Map<Point3DId, Point3D>)

}

export function writePoints3DText(points3D: Map<Point3DId, Point3D>): string {
  const lines: string[] = [];

  let totalTrackLen = 0;
  for (const pt of points3D.values()) {
    totalTrackLen += pt.track.length;
  }
  const meanTrackLen = points3D.size > 0 ? (totalTrackLen / points3D.size).toFixed(6) : '0';

  lines.push('# 3D point list with one line of data per point:');
  lines.push('#   POINT3D_ID, X, Y, Z, R, G, B, ERROR, TRACK[] as (IMAGE_ID, POINT2D_IDX)');
  lines.push(`# Number of points: ${points3D.size}, mean track length: ${meanTrackLen}`);

  for (const point3DId of sortedKeys(points3D)) {
    const pt = points3D.get(point3DId)!;
    const [x, y, z] = pt.xyz;
    const [r, g, b] = pt.rgb;
    const trackStr = pt.track.map((t) => `${t.imageId} ${t.point2DIdx}`).join(' ');

    lines.push(
      [
        point3DId.toString(),
        formatDouble(x),
        formatDouble(y),
        formatDouble(z),
        r,
        g,
        b,
        formatDouble(pt.error),
        trackStr,
      ].join(' ')
    );
  }

  return lines.join('\n') + '\n';
}

export function writeRigsText(rigs: Map<RigId, Rig>): string {
  const lines: string[] = [];