Tripp Lowe


Sectionals wrap-up

Sectionals, once again:  MzeroA Flight Training – sectionals How to read a VFR sectional chart: https://www.youtube.com/watch?v=NEp1K-TCmD8 Aeronautical Chart User’s guide (Chart symbols):  https://www.faa.gov/air_traffic/flight_info/aeronav/digital_products/aero_guide/media/editions/16Jul2020/cug-complete.pdf  


CSV to Shapefile in R

  #####Code based on https://erinbecker.github.io/r-raster-vector-geospatial/10-vector-csv-to-shapefile-in-r/index.html #####load libraries library(“sf”) library(“raster”) #####Set working path, input text file name, output shapefile name mypath<- “~/r-docker-tutorial/lIlk” myfile<- “20201015_1130wetland8.TXT” outfile<- “emi_20201015_1130wetland8.shp” #####Read CSV into a data frame named mydat mydat<- read.csv(file.path(mypath,myfile), na.strings = “NA”) nrow(mydat) #####Remove all rows whose longitude value is NA mydat<- subset(mydat, !is.na(mydat$WGS84_LON)) […]


How-To Notebook Part II

  For the second part of your How-To notebook, you will design, execute, assess, revise and repeat a spatial analysis component of your research project.  Specifically, I want you to: Identify one spatial analysis component of your research project; those of you working on a non-thesis degree, find a project […]


Little bit of R code for LiDAR

Using LAZ point cloud linked on our eLC site #####Processing 1 LAZ file. Will generate slope, aspect, and hillshade images; normalize the point cloud; create #####canopy height model and a custom metric #####Save the #####might need to install libraries #####install.packages(lidR) library(lidR) library(rgdal) library(future) plan(multisession, workers = 4L) #####Setting my working […]