add gridCreate function

examples/cdi_write.jl

+
+include("./../interfaces/julia/libcdi.jl")
+using .cdi
+
+println("cdi_write example has started")
+println(instances(cdi.GRID))
+println(instances(GRID))
+
+const size = 200
+gridID = gridCreate(LONLAT, convert(Csize_t, size))
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interfaces/julia/libcdi.jl

+module cdi
+
+@enum GRID::Cint begin
+    GENERIC             = 1  # Generic grid
+    GAUSSIAN            = 2  # Regular Gaussian lon/lat grid
+    GAUSSIAN_REDUCED    = 3  # Reduced Gaussian lon/lat grid
+    LONLAT              = 4  # Regular longitude/latitude grid
+    SPECTRAL            = 5  # Spherical harmonic coefficients
+    FOURIER             = 6  # Fourier coefficients
+    GME                 = 7  # Icosahedral-hexagonal GME grid
+    TRAJECTORY          = 8  # Trajectory
+    UNSTRUCTURED        = 9  # General unstructured grid
+    CURVILINEAR         = 10 # Curvilinear grid
+    PROJECTION          = 12 # Projected coordinates
+    CHARXY              = 13 # One horizontal character dimension
+
+    PROJ_RLL            = 21 # Rotated Latitude Longitude
+    PROJ_LCC            = 22 # Lambert Conformal Conic
+    PROJ_LAEA           = 23 # Lambert Azimuthal Equal Area
+    PROJ_SINU           = 24 # Sinusoidal
+    PROJ_STERE          = 25 # Polar stereographic
+end
+
+function gridCreate(gridtype::GRID, size::Unsigned):Cint
+    println("Create Grid")
+    return ccall(Cint, (Cint, Csize_t), gridtype, size)
+end
+
+export GRID, LONLAT
+export gridCreate
+
+end #module cdi
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