利用liblas库实现las格式文件处理.

安装laslib库遇到问题如下,也不知道安装对没有:

命令:~/Downloads/libLAS-1.8.1/makefiles$ cmake ..
报错:
-- Searching for GeoTIFF 1.3.0+ library
-- Could NOT find GeoTIFF (missing:  GEOTIFF_LIBRARY GEOTIFF_INCLUDE_DIR) (Required is at least version "1.3.0")
CMake Error at CMakeLists.txt:280 (message):
  Unable to find sufficient GeoTIFF


-- Configuring incomplete, errors occurred!
法2:

1，在https://github.com/LAStools/LAStools 下载，解压，命令行进入解压后文件夹所在目录

2，cd LASlib && make，cd LASzip && make，cd src && make这几行命令用来编译并得到LASlib.a,LASlib的静态库
--------------------- 
作者：Handsome灬Harry 
来源：CSDN 
原文：https://blog.csdn.net/u013313528/article/details/81781570 
版权声明：本文为博主原创文章，转载请附上博文链接！
运行信息:
lasdiff.cpp:109:8: warning: variable ‘verbose’ set but not used [-Wunused-but-set-variable]
   bool verbose = false;
        ^
g++  -O3 -Wall -Wno-deprecated -Wno-strict-aliasing -Wno-write-strings -Wno-unused-result -DNDEBUG  lasdiff.o -llas -o lasdiff  -L../LASlib/lib  -I../LASzip/src -I../LASlib/inc 
cp lasdiff ../bin
g++  -c -O3 -Wall -Wno-deprecated -Wno-strict-aliasing -Wno-write-strings -Wno-unused-result -DNDEBUG   -I../LASzip/src -I../LASlib/inc  lasmerge.cpp -o lasmerge.o
g++  -O3 -Wall -Wno-deprecated -Wno-strict-aliasing -Wno-write-strings -Wno-unused-result -DNDEBUG  lasmerge.o geoprojectionconverter.o -llas -o lasmerge  -L../LASlib/lib  -I../LASzip/src -I../LASlib/inc 
cp lasmerge ../bin
g++  -c -O3 -Wall -Wno-deprecated -Wno-strict-aliasing -Wno-write-strings -Wno-unused-result -DNDEBUG   -I../LASzip/src -I../LASlib/inc  lasindex.cpp -o lasindex.o
g++  -O3 -Wall -Wno-deprecated -Wno-strict-aliasing -Wno-write-strings -Wno-unused-result -DNDEBUG  lasindex.o -llas -o lasindex  -L../LASlib/lib  -I../LASzip/src -I../LASlib/inc 
cp lasindex ../bin
make[1]: Leaving directory '/home/yukun/Downloads/LAStools-master/src'

换种方式:

命令:lasinfo 20170511.las(磁盘文件)
结果:
The program 'lasinfo' is currently not installed. You can install it by typing:
sudo apt install liblas-bin
再运行:sudo apt install liblas-bin
结果(貌似就自己装好了):
setting up liburiparser1:amd64 (0.8.4-1) ...
Setting up libkmlbase1:amd64 (1.3.0-1) ...
Setting up libkmldom1:amd64 (1.3.0-1) ...
Setting up libkmlengine1:amd64 (1.3.0-1) ...
Setting up libogdi3.2 (3.2.0~beta2-7.1build1) ...
Setting up libopenjp2-7:amd64 (2.1.0-2.1) ...
Setting up libspatialite7:amd64 (4.3.0a-5) ...
Setting up libxerces-c3.1:amd64 (3.1.3+debian-1) ...
Setting up libgdal1i (1.11.3+dfsg-3build2) ...
Setting up libgeotiff2:amd64 (1.4.1-2) ...
Setting up liblas3 (1.8.0-7build1) ...
Setting up liblas-c3 (1.8.0-7build1) ...
Setting up liblas-bin (1.8.0-7build1) ...
Processing triggers for libc-bin (2.23-0ubuntu10) ...

再运行lasinfo 20170511.las(磁盘文件),就跑出如下结果
---------------------------------------------------------
  Header Summary
---------------------------------------------------------

  Version:                     1.2
  Source ID:                   0
  Reserved:                    0
  Project ID/GUID:             '00000000-0000-0000-0000-000000000000'
  System ID:                   ''
  Generating Software:         'TerraScan'
  File Creation Day/Year:      131/2017
  Header Byte Size             227
  Data Offset:                 229
  Header Padding:              2
  Number Var. Length Records:  None
  Point Data Format:           1
  Number of Point Records:     222402675
  Compressed:                  False
  Number of Points by Return:  213920899 7536639 834914 101826 8397 
  Scale Factor X Y Z:     0.01000000000000 0.01000000000000 0.01000000000000
  Offset X Y Z:                -0.00 -0.00 -0.00
  Min X Y Z:                   446016.63 3642012.20 0.33
  Max X Y Z:                   447868.40 3664212.80 101.46
  Spatial Reference:           None

所以最后一句话总结: sudo apt install liblas-bin