RDB 2
rdb-example-10-attribute-groups.py
1 #!/usr/bin/env python3
2 # -*- coding: utf-8 -*-
3 #
4 #*******************************************************************************
5 #
6 # Copyright 2023 RIEGL Laser Measurement Systems
7 #
8 # Licensed under the Apache License, Version 2.0 (the "License");
9 # you may not use this file except in compliance with the License.
10 # You may obtain a copy of the License at
11 #
12 # http://www.apache.org/licenses/LICENSE-2.0
13 #
14 # Unless required by applicable law or agreed to in writing, software
15 # distributed under the License is distributed on an "AS IS" BASIS,
16 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 # See the License for the specific language governing permissions and
18 # limitations under the License.
19 #
20 # SPDX-License-Identifier: Apache-2.0
21 #
22 #*******************************************************************************
23 #
24 """
25 rdb-example-10-attribute-groups.py
26 
27 This example shows how to open an existing database and output the
28 point attribute group names and the point attributes in each group.
29 
30 Example output:
31 
32  Coordinates/Vectors:
33  - XYZ (riegl.xyz)
34  Time:
35  - Timestamp (riegl.timestamp)
36  Primary Attributes:
37  - Reflectance (riegl.reflectance)
38  - Amplitude (riegl.amplitude)
39  - Deviation (riegl.deviation)
40  - True Color (riegl.rgba)
41  - Target Index (riegl.target_index)
42  - Target Count (riegl.target_count)
43  Secondary Attributes:
44  - Mirror Facet (riegl.mirror_facet)
45  - PID (riegl.id)
46  Other Attributes:
47  - Selected (riegl.selected)
48  - Visible (riegl.visible)
49 """
50 
51 import riegl.rdb
52 
53 # Open existing database using default settings
54 with riegl.rdb.rdb_open("pointcloud.rdbx") as rdb:
55  current_group = None
56  for attribute in rdb.point_attributes.values():
57  # Query point attribute group
58  group, index = rdb.point_attributes.group(attribute.name)
59  if current_group != group: # print name of new group:
60  print(group)
61  current_group = group
62 
63  # Print point attribute details
64  print(f" - {attribute.title} ({attribute.name})")