Description Usage Arguments Details Value Author(s) See Also Examples
This function is designed to display a trajectory frequency map that was output by
function RasterizeTraj
.
1 2 | PlotTrajFreq(spGridDf, background = T, overlay = NA,
overlay.color = "white", pdf = F, file.name = "output", ...)
|
spGridDf |
SpatialGridDataFrame Object obtained by the convertion of the
raster Object output by the |
background |
Boolean: Indicates whether or not the Canadian's background map should be displayed. |
overlay |
[Optional] If defined, it takes a SpatialPolygonsDataFrame as input and plots it over the spGridDf. |
overlay.color |
String. sets the Polygons' color defined by the overlay argument e.g. "blue" |
pdf |
Defines whether or not the output map should be saved in a pdf file. |
file.name |
String: If the argument pdf is True, this argument defined the name of the output file. |
... |
Further arguments to be passed to the generic function plot. |
Since the function RasterizeTraj outputs a RasterLayer object, this Object must be converted to a SpatialGridDataFrame Object using the as(rasterObject, "SpatialGridDataFrame") for example.
Trajectory Frequency Map
Thalles Santos Silva
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | library(raster)
crs <- "+proj=longlat +datum=NAD83 +no_defs +ellps=GRS80 +towgs84=0,0,0"
air.traj.lines <- Df2SpLines(air.traj, crs)
raster.lines <- RasterizeTraj(air.traj.lines, reduce=TRUE, resolution=15000, parallel=FALSE)
r.max.value <- maxValue(raster.lines)
v <- getValues(raster.lines)
v <- v / r.max.value
r <- setValues(raster.lines, v)
## convert raster object to SparialGridDataFrame Object
r1 <- as(r, "SpatialGridDataFrame")
PlotTrajFreq(r1, background = TRUE, main="Title", pdf=FALSE)
|
Loading required package: sp
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
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