import(sp)
import(httr)
import(spdep)
import(ncdf4)
import(ncdf4.helpers)
import(rgdal)
import(methods)
import(utils)
useDynLib(meteoland, .registration = TRUE)
export(correctionpoints, correctionpoints.errors, 
       correction_series,
       defaultCorrectionParams, defaultInterpolationParams,
       downloadAEMETcurrentday,downloadAEMEThistorical, downloadAEMEThistoricalstationlist,
       extractgridpoints, extractNetCDF, extractpointdates, extractSpatialData,
       interpolation_dewtemperature, interpolation_precipitation, interpolation_temperature, interpolation_wind,
       interpolationpoints, interpolationgrid, interpolationpixels,
       interpolation.calibration, interpolation.calibration.fmax, interpolation.coverage, interpolation.cv, 
       meteocomplete, meteoplot, MeteorologyUncorrectedData, MeteorologyInterpolationData,
       penman, penmanmonteith, precipitationconcentration,
       plot.interpolation.cv,
       radiation_julianDay, radiation_solarDeclination, radiation_solarConstant, radiation_daylength,
       radiation_dateStringToJulianDays, radiation_sunRiseSet, radiation_daylengthseconds,
       radiation_potentialRadiation, radiation_solarElevation, radiation_solarRadiation, 
       radiation_directDiffuseInstant, radiation_directDiffuseDay, radiation_skyLongwaveRadiation,
       radiation_outgoingLongwaveRadiation,radiation_netRadiation,
       readmeteorologypixels, readmeteorologypixelsfiles,
       readmeteorologypoint,readmeteorologypointfiles, 
       readmeteorologygrid, readmeteorologygridfiles, readmeteorologygridcells, 
       readWindNinjaWindFields,
       SpatialPointsTopography, SpatialGridTopography, SpatialPixelsTopography, 
       SpatialGridMeteorology, SpatialPointsMeteorology, SpatialPixelsMeteorology,
       subsample,summary.interpolation.cv, 
       summarypixels, summarygrid, summarypoints, summaryinterpolationdata,
       utils_saturationVP, utils_averageDailyVP, utils_atmosphericPressure,
       utils_airDensity, utils_averageDaylightTemperature, utils_latentHeatVaporisation,
       utils_latentHeatVaporisationMol,utils_psychrometricConstant,
       utils_saturationVaporPressureCurveSlope,
       writemeteorologypixels, writemeteorologypixelsfiles,
       writemeteorologygrid, writemeteorologygridfiles,
       writemeteorologypoint, writemeteorologypointfiles)
exportClasses(MeteorologyProcedureData, MeteorologyInterpolationData, MeteorologyUncorrectedData)
exportClasses(SpatialPointsMeteorology,SpatialPointsTopography,
              SpatialGridMeteorology,SpatialGridTopography,
              SpatialPixelsMeteorology,SpatialPixelsTopography)
exportMethods(subsample, spplot, "[", show)
importFrom(Rcpp, evalCpp)
importFrom(jsonlite,fromJSON)
importFrom(grDevices, colorRampPalette, topo.colors)
importFrom(graphics, abline, hist, lines, par)
importFrom(utils, read.table, setTxtProgressBar,
             txtProgressBar, write.table)
importFrom(stats, cor, var, lm, aggregate, approx, na.omit, quantile)

S3method(summary, interpolation.cv)

S3method(plot, interpolation.cv)

S3method(head, SpatialPointsMeteorology)
S3method(head, SpatialPointsTopography)

S3method(tail, SpatialPointsTopography)
S3method(tail, SpatialPointsMeteorology)

S3method(print, SpatialPointsTopography)
S3method(print, SpatialPixelsTopography)
S3method(print, SpatialGridTopography)
S3method(print, SpatialPointsMeteorology)
S3method(print, SpatialPixelsMeteorology)
S3method(print, SpatialGridMeteorology)