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Questions - lidr

TIN DSM Algorithm used in LidR package R

I have a question regarding to the TIN method used in LidR. My point cloud data is look like this figure. When I compute DSM using TIN method, the height value is not at the highest peak of first retu...
test-img

Michael_vashni

r

lidar

lidr

Votes: 0

Answers: 1

Latest Answer

lidR triangulates the first returns and interpolates at the location of the centers of the pixels. So if a pixel is at the center of a triangle the value it returns is a linear combination of the elev...
test-img

JRR

How to convert lidar format las to data.frame?

Lidar data is simply 3d coordinates, usually in las file format. Сontent example library(rgdal) library(raster) library(tmap) library(tmaptools) library(lidR) library(RStoolbox) las_cat <- readLASc...
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psysky

r

geospatial

lidar

las

lidr

Votes: 0

Answers: 2

Latest Answer

Please find below one possible solution to get a data.table,data.frame with all the information. You can use as.data.frame() to get a pure data.frame but a data.table is a data.frame Reprex NB: I used...
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lovalery

How to get a circular subset of a las-dataset with specific area using lidR::clip_circle()?

To get a circular subset of a las-dataset with specific area, I would like to use lidR::clip_circular(). To do so, I first calculate the central point of my las-dataset, then I define the radius I wan...
test-img

ExploreR

r

point-clouds

lidar

las

lidr

Votes: 0

Answers: 1

Latest Answer

I can reproduce your issue with example data LASfile <- system.file("extdata", "Megaplot.laz", package="lidR") las = lidR::readLAS(LASfile) las_ctpt <- sf::st_coord...
test-img

JRR

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