Visualization

We provide command-line scripts to visualize the reconstruction produced by LIMAP. To visualize the full reconstruction (points + lines):

python visualize_holistic_recon.py --input_dir ${OUTPUT_DIR}/final_model --cam_scale 0.1

To visualize the points only (using pycolmap):

python visualize_colmap_model.py --input_dir ${OUTPUT_DIR}/final_model --cam_scale 0.1

Here ${OUTPUT_DIR} is the output directory passed to the triangulation CLI (see Holistic 3D mapping). We use Open3D as the backend for the visualization.

visualize_holistic_recon.py also renders the structured primitives of a holistic reconstruction. Useful options include --color_lines_by_vps to color the 3D lines by their associated vanishing point, --manhattan_planes / --atlanta_planes to restrict the displayed planes to a Manhattan or Atlanta world, --plane_alpha and --cylinder_alpha to control primitive transparency, and --min_track_length / --min_associated_features to filter out weakly supported structures. Pass --help for the full list.