plotGoogleMaps (version 2.2)

vectorsSP: Create radius vector data in form of SpatialLinesDataFrame.

Description

Create radius vector data in form of SpatialLinesDataFrame based on radius and azimuth.

Usage

vectorsSP(SPDF, zcol=1:2, maxlength=30000,  arrowSize=0.15,  arrAng=30   )

Arguments

SPDF

object of SpatialPointsDataFrame-class with associated coordinate reference systems and minimum two attributes: radius in meter and azimuth in degrees.

zcol

variable column names, or column numbers after removing spatial coordinates from x@data: 1 refers to the first non-coordinate column. Attribute names or numbers of columns contains radius in meter and azimuth in degrees

maxlength

value for maximum vetor in meter

arrowSize

size of arrow relative to vector size

arrAng

angle of arrow in degrees, 0 no arrow

Value

See Also

pieSP, elSPDF, bubbleSP

Examples

# Data preparation
wind<-data.frame( Station=c('Zlatibor' , 'Sjenica' , 
    'Pozega' , 'Kraljevo', 'Kopaonik', 'Kursumlija', 'Krusevac'),
                  Lon=c(19.708418 , 19.999311 , 20.029322,
                  20.724012, 20.776111, 21.279513, 21.307998 ),
                  Lat=c(43.729755 , 43.267913	,43.84859	,
                  43.726812	,43.2725,	43.137053	,43.574188),
                  Temp=c(7,  7,	5,	6,	1,	6,	9),
                  Wind_spd=c(3 , 6,	1	,1,	7	,1	,2),
                  Wind_dir=c(45, 162,  138	,265,	335	,180	,270) )

coordinates(wind)<- ~Lon+Lat
wind@proj4string=CRS('+proj=longlat +datum=WGS84')

wind_vect=vectorsSP(wind,zcol=c('Wind_spd','Wind_dir'))

pal<-colorRampPalette(c( "#CB181D", "#A50F15","#67000D"), space = "Lab")
spplot(wind_vect,'Wind_spd', col.regions=pal(5) )
m=plotGoogleMaps(wind_vect,zcol='Wind_spd', 
      colPalette=pal(5), mapTypeId='ROADMAP',strokeWeight=3)

# plotKML(wind_vect)