laszip

import laszip import os import tempfile # Create a temporary file path temp_laz_path = os.path.join(tempfile.gettempdir(), "test_laszip_quickstart.laz") try: # 1. Prepare a minimal header for writing header = laszip.LaszipHeader() header.major_version = 1 header.minor_version = 4 header.point_data_format = 6 # Standard LAS 1.4, Point Data Record Format 6 header.point_data_record_length = 36 # bytes for format 6 header.number_of_point_records = 1 header.X_offset = 0.0; header.Y_offset = 0.0; header.Z_offset = 0.0 header.X_scale_factor = 0.01; header.Y_scale_factor = 0.01; header.Z_scale_factor = 0.01 header.min_x = 100.0; header.max_x = 100.0 header.min_y = 200.0; header.max_y = 200.0 header.min_z = 300.0; header.max_z = 300.0 # Prepare a dummy point point = laszip.LaszipPoint() point.X = 10000; point.Y = 20000; point.Z = 30000 # Scaled by 0.01 point.classification = 1 point.intensity = 100 # 2. Write a dummy LAZ file print(f"Writing dummy LAZ to {temp_laz_path}") with laszip.LaszipWriter(temp_laz_path, header_in=header) as writer: writer.write_point(point) # 3. Read the LAZ file back print(f"Reading from {temp_laz_path}") with laszip.LaszipReader(temp_laz_path) as reader: read_header = reader.header print(f" Read header - Point count: {read_header.number_of_point_records}") read_point = reader.read_point() print(f" Read point: X={read_point.X}, Y={read_point.Y}, Z={read_point.Z}") except Exception as e: print(f"An error occurred: {e}") finally: # 4. Clean up the temporary file if os.path.exists(temp_laz_path): os.remove(temp_laz_path) print(f"Cleaned up {temp_laz_path}")