[Liblas-devel] Can Liblas only update a small portion of the points in Lidar file?

2012-01-06 Thread Hongwei Shen
Hello, The scenario is: the user opens a large Lidar file, changes the classification labels of a small number of points and save the changes to the file. When the Lidar file is huge, it is time-consuming to output all the points. So it would be better if only the modified points are updated in

Re: [Liblas-devel] Can Liblas only update a small portion of the points in Lidar file?

2012-01-06 Thread Howard Butler
On Jan 6, 2012, at 12:16 PM, Hongwei Shen wrote: Hello, The scenario is: the user opens a large Lidar file, changes the classification labels of a small number of points and save the changes to the file. When the Lidar file is huge, it is time-consuming to output all the points. So it

[Liblas-devel] libLAS 1.7.0 released

2012-01-06 Thread Howard Butler
All, I am pleased to announce the release of libLAS 1.7.0. libLAS 1.7.0 signifies libLAS going into maintenance mode from this point forward unless someone else steps forward to bring momentum to it. libLAS 1.7.0 has limited support for LAS 1.3, and no support for LAS 1.4. If someone wishes

Re: [Liblas-devel] Can Liblas only update a small portion of the points in Lidar file?

2012-01-06 Thread Hongwei Shen
Thank you for the answer, Howard. I'll check if I can add this support. Thanks, Hongwei On Fri, Jan 6, 2012 at 1:47 PM, Howard Butler hobu@gmail.com wrote: On Jan 6, 2012, at 12:16 PM, Hongwei Shen wrote: Hello, The scenario is: the user opens a large Lidar file,  changes the

Re: [Liblas-devel] Can Liblas only update a small portion of the points in Lidar file?

2012-01-06 Thread Howard Butler
If you do work to add this, you'll probably just need to add a seek() method to the liblas::Writer class (and underlying implementation classes) that positions the stream. After that liblas::Writer::WritePoint() should overwrite the data, though you may want to do some header checks to make