sqlite_to_raster: helpers to convert sqlite table to rasters

In jstrunk001/RSForInvt: Remote Sensing FORest INVenTory related analysis tasks, especially FUSION, lidR, NVEL

helpers to convert sqlite table to rasters

Description

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Usage

sqlite_to_raster(
  db,
  tb_gm = "gm",
  colsxy = c("center_x", "center_y"),
  cols2Raster = colsSomeX(),
  res = c(NA, NA),
  format = ".img",
  dirOut = "E:\\projects\\2017_NAIP\\rasters\\",
  raster_prefix = "",
  crs = NA,
  nProc = 4,
  doDebug = F,
  doBuild = F,
  set9999 = c(0, NA, -9999),
  big_raster = F
)

colsAll(thresh = "6_00")

colsID()

colsAllX(thresh = "6_00")

colsSomeX(thresh = "6_00")

colsFewX(thresh = "6_00")

Arguments

db	a database object, tested for sqlite database
tb_gm	which table has gridmetrics data
colsxy	names of xy columns
cols2Raster	which columns to grab
format	raster formate e.g. .tif , .img etc
dirOut	where to export rasters
raster_prefix	give a name to rasters for id purposes
crs	proj4 string or other crs notation used by raster package (see writeRaster)
nProc	number of cores to use in converting to raster
doDebug	run in debug mode and only read 50k rows?
thresh	character string like "2_50" that matches height representation in column names in tb_gm

Details

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Revision History

1.0	3/16/2020 Function created

Value

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Author(s)

Jacob Strunk <[e-mail]>

See Also

rasterFromXYZ
writeRaster

Examples

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jstrunk001/RSForInvt documentation built on April 18, 2022, 11:03 p.m.