<div dir="ltr">Thanks for the answers!<div><br></div><div>I clarify my question better (I hope!).</div><div>I have a las file that I want to filter with a pdal pipeline; at the end of pipeline I want to verify a distribution fitting (see for example <a href="https://glowingpython.blogspot.it/2012/07/distribution-fitting-with-scipy.html">https://glowingpython.blogspot.it/2012/07/distribution-fitting-with-scipy.html</a>).</div><div>So, the pipeline result are the distribution parameters. It is possible this?</div><div><br></div><div>I would ask you another question.</div><div>I have a problem installation of python pdal binding.</div><div>I have an ubuntu 16.04 LTS. I have compiled PCL from source (some pdal filters that I want apply required that) and then I have compiled pdal 1.5.0 (from source) with pcl support. pdal compile is ok.</div><div>Then I want to install python binding. with pip or executing setup.py in pdal python dir I have same error:</div><div><br></div><div><br></div><div><div>cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++</div><div> c++ -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -Wl,-Bsymbolic-functions -Wl,-z,relro -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security build/temp.linux-x86_64-2.7/pdal/libpdalpython.o build/temp.linux-x86_64-2.7/pdal/PyPipeline.o -L/usr/local/lib -lpdalcpp -lpdal_plang -o build/lib.linux-x86_64-2.7/pdal/libpdalpython.so</div><div> /usr/bin/ld: cannot find -lpdal_plang</div><div> collect2: error: ld returned 1 exit status</div><div> error: command 'c++' failed with exit status 1</div></div><div><br></div><div><br></div><div>there is a pdal_plang library missing (I think). pdal_plang require pdal_base lib that require gdal-abi-2-1-2 that is a virtual package that send to libgdal20 that is already installed, but I have dependency error:</div><div><br></div><div><br></div><div><div>$ sudo dpkg -i libpdal-plang4_1.4.0-1_amd64.deb </div><div>Selecting previously unselected package libpdal-plang4.</div><div>(Reading database ... 247915 files and directories currently installed.)</div><div>Preparing to unpack libpdal-plang4_1.4.0-1_amd64.deb ...</div><div>Unpacking libpdal-plang4 (1.4.0-1) ...</div><div>dpkg: dependency problems prevent configuration of libpdal-plang4:</div><div> libpdal-plang4 depends on libpdal-base4 (>= 1.3.0); however:</div><div> Package libpdal-base4 is not installed.</div><div><br></div><div>dpkg: error processing package libpdal-plang4 (--install):</div><div> dependency problems - leaving unconfigured</div><div>Processing triggers for libc-bin (2.23-0ubuntu9) ...</div><div>Errors were encountered while processing:</div><div> libpdal-plang4</div><div><br></div><div>$ sudo dpkg -i libpdal-base4_1.4.0-1_amd64.deb </div><div>Selecting previously unselected package libpdal-base4.</div><div>(Reading database ... 247920 files and directories currently installed.)</div><div>Preparing to unpack libpdal-base4_1.4.0-1_amd64.deb ...</div><div>Unpacking libpdal-base4 (1.4.0-1) ...</div><div>dpkg: dependency problems prevent configuration of libpdal-base4:</div><div> libpdal-base4 depends on gdal-abi-2-1-2; however:</div><div> Package gdal-abi-2-1-2 is not installed.</div><div><br></div><div>dpkg: error processing package libpdal-base4 (--install):</div><div> dependency problems - leaving unconfigured</div><div>Processing triggers for libc-bin (2.23-0ubuntu9) ...</div><div>Errors were encountered while processing:</div><div> libpdal-base4</div></div><div><br></div><div><br></div><div>Could someone help me?</div><div>Thanks a lot</div><div><br></div><div>Giuseppe</div></div><div class="gmail_extra"><br><div class="gmail_quote">2017-09-25 17:23 GMT+02:00 Bradley Chambers <span dir="ltr"><<a href="mailto:brad.chambers@gmail.com" target="_blank">brad.chambers@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">This short iPython notebook shows how one can construct a PDAL pipeline that just reads in data. You can do what you want with it from there.<div><br></div><div><a href="http://nbviewer.jupyter.org/github/chambbj/learning-pdal/blob/master/notebooks/Getting%20Started.ipynb" target="_blank">http://nbviewer.jupyter.org/<wbr>github/chambbj/learning-pdal/<wbr>blob/master/notebooks/Getting%<wbr>20Started.ipynb</a><br></div></div><br><div class="gmail_quote"><div><div class="h5"><div dir="ltr">On Mon, Sep 25, 2017 at 11:15 AM Andrew Bell <<a href="mailto:andrew.bell.ia@gmail.com" target="_blank">andrew.bell.ia@gmail.com</a>> wrote:<br></div></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Mon, Sep 25, 2017 at 10:44 AM, Giuseppe Falcone <span dir="ltr"><<a href="mailto:falcone.giuseppe@gmail.com" target="_blank">falcone.giuseppe@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi to all!<div><br></div><div>I'm new on pdal (in python pdal) and I have two question for us.</div><div><br></div><div>It is possibile to build a pipeline that return in memory output (I want that output are not stored on file system but is in a variable for other analysis )?</div></div></blockquote><div><br></div></div></div></div><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div>Yes. In python or C++. You can write code to access the data once it has been read. You need to be specific about what you're trying to accomplish.</div><div><br></div><div>Perhaps this is what you're looking for: <a href="https://www.pdal.io/tutorial/python-filtering.html" target="_blank">https://www.pdal.io/<wbr>tutorial/python-filtering.html</a></div></div></div></div><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>It is possible to build a pipeline that return only some statistical attribute of las input data?<br></div></div></blockquote><div><br></div></div></div></div><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div>You don't need to build a thing. You can run 'pdal info --stats'. Or you can create a pipeline that runs the stats filter and does no other output. You need to be more specific for us to be helpful.</div><div><br></div><div>-- <br></div></div></div></div><div dir="ltr"><div class="gmail_extra"><div class="m_-651086079597994177m_-8952633833879346810gmail_signature">Andrew Bell<br><a href="mailto:andrew.bell.ia@gmail.com" target="_blank">andrew.bell.ia@gmail.com</a></div>
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