Timeline for Splitting LAS file into smaller LAS files by shapefile geometry boundaries - using PDAL or Global Mapper. [duplicate]
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
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| Sep 9, 2021 at 6:20 | history | left closed in review |
tinlyx Kadir Şahbaz LaughU |
Original close reason(s) were not resolved | |
| Sep 9, 2021 at 0:39 | review | Reopen votes | |||
| Sep 9, 2021 at 6:20 | |||||
| Jan 7, 2019 at 18:24 | history | closed |
Andre Silva xunilk Jochen Schwarze Ali Evil Genius |
Duplicate of Clipping LAS data using shapefile polygons and open source software? | |
| Jan 7, 2019 at 10:44 | comment | added | Andre Silva | This is a duplicate, the linked post has a PDAL answer too. Have you seen it? | |
| Jan 7, 2019 at 1:19 | history | edited | Rose | CC BY-SA 4.0 |
added 127 characters in body; edited title
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| Jan 6, 2019 at 23:50 | review | Close votes | |||
| Jan 7, 2019 at 18:24 | |||||
| Jan 6, 2019 at 23:30 | history | edited | Andre Silva |
edited tags
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| Jan 6, 2019 at 11:41 | answer | added | JRR | timeline score: 2 | |
| Nov 25, 2018 at 23:15 | comment | added | Michael Stimson | Within means within, not on a boundary. In reality it's extremely unlikely for a point to fall on a boundary... coordinates in shapefiles are stored as double but las records are integers divided by a scale factor and offset - not the full double range, without getting too technical it would take a perfect storm situation for a LAS record to be on a line segment. | |
| Nov 24, 2018 at 22:44 | comment | added | Rose | Thank you for the suggestion, for OGR_G_Within would that not take into account points that fall on the geometry boundaries, and cause discrepancies between the number of total output points compared to input? I've found a way to split LAS by Shapefile boundaries using FME, conserving points however this is not an open source option, and very cumbersome. Only feasible for one small LAS file. If someone is interested I can put the workflow in the answer dialog. | |
| Nov 21, 2018 at 0:13 | comment | added | Michael Stimson | You could write a python script using laspy and OGR, looping through each record and checking within gdal.org/python/osgeo.ogr.Geometry-class.html#Within and writing to a new las file with laspy if True. | |
| Nov 20, 2018 at 8:43 | comment | added | Rose | @MichaelStimson thank you for the heads up. As I'm using these tools for a govt department, it is not so cheap in this situation. Are you aware of any open source options to solve this issue? | |
| Nov 20, 2018 at 7:04 | comment | added | Michael Stimson | Are you trying to avoid the licensing restriction in this software.. I recommend you purchase a license, it's not that expensive and supports the development of future products. I had the same problem trying to extract by irregular polygons which left me two options: export a shapefile for each unique polygon and call lasclip on each shapefile or write my own.. I wrote my own utility in C++ as it seemed the less tedious option. | |
| Nov 20, 2018 at 6:30 | history | asked | Rose | CC BY-SA 4.0 |