When reading images reshape the incoming row major array like in gdalread.

src/gmt_main.jl

@@ -489,7 +489,8 @@ function get_image(API::Ptr{Nothing}, object)::GMTimage
 		if (layout != "" && layout[1] == 'I')		# The special layout for using this image in Images.jl
 			o = (nz == 1) ? (ny, nx) : (nz, ny, nx)
 		else
-			o = (nz == 1) ? (ny, nx) : (ny, nx, nz)
+			#o = (nz == 1) ? (ny, nx) : (ny, nx, nz)
+			o = (nz == 1) ? (nx, ny) : (nx, ny, nz)
 			isBRP = startswith(layout, "BRP") || startswith(layout, "TRP")
 			(nz == 1 && isBRP) && (layout = "BRPa")	# For 1 layer "BRBa" and "BRPa" is actualy the same.
 			(!isBRP && nz > 1) && @warn("Only 'I' for Images.jl and 'BRP' MEM layouts are allowed.")

src/psxy.jl

@@ -1233,7 +1233,7 @@ function make_color_column(d::Dict, cmd::String, opt_i::String, len_cmd::Int, N_
 	end
 
 	# Filled polygons with -Z don't need extra col
-	((val = find_in_dict(d, [:G :fill], false)[1]) == "+z") && return cmd, arg1, nothing, N_args, false
+	((val = find_in_dict(d, [:G :fill], false)[1]) == "+z") && return cmd, arg1, arg2, N_args, false
 
 	n_rows, n_col = get_sizes(arg1)		# Deal with the matrix, DS & Vec{DS} cases
 	#(isa(mz, Int) && mz <= n_col && mz == 3+is3D) && return cmd, arg1, nothing, N_args, false	# zcolor column is already in place

src/spatial_funs.jl

@@ -1,22 +1,24 @@
 # ---------------------------------------------------------------------------------------------------
 """
-    zvals = polygonlevels(D::GDtype, ids::Vector{String}, vals::Vector{<:Real}; kw...) -> Vector{Float64}
-or
+    zvals = polygonlevels(D::GDtype, ids::VecOrMat{String}, vals::Vector{<:Real}; kw...) -> Vector{Float64}
 
-    zvals = polygonlevels(D::GDtype, ids::Matrix{String}, vals::Vector{<:Real}; kw...) -> Vector{Float64}
+Create a vector with `zvals` to use in `plot` and where length(zvals) == length(D)
 
-Creates a vector with `zvals` to use in `plot` and where length(zvals) == length(D)
 The elements of `zvals` are made up from the `vals`.
 
-- `ids`:    is a string Vector or Matrix with the ids (attribute names) of the GMTdataset D.
+### Args
+- `D`:      The data in a vector of GMTdataset.
+- `ids`:    is a string Vector or Matrix with the ids (attribute names) of the GMTdataset `D`.
             If a Matrix (2 columns only) then the `att` bellow must also have the two names (string vector
             with two elements) that will be matched against the two elements of each line of `ids`.
             The idea here is to match two conditions: `att[1] == ids[n,1] && att[2] == ids[n,2]`
 - `vals`:   is a vector with the numbers to be used in plot `level` to color the polygons.
-- `attrib` or `att`: keyword to select which attribute to use when matching with contents of the `ids` strings.
-- `nocase` or `insensitive`: a keyword from `kw`. Perform a case insensitive comparision between the contents of
+
+### Kwargs
+- `attrib` or `att`: Select which attribute to use when matching with contents of the `ids` strings.
+- `nocase` or `insensitive`: Perform a case insensitive comparision between the contents of
                `ids` and the attribute specified with `attrib`. Default compares as case sensistive.
-- `repeat`: keyword to replicate the previously known value until it finds a new segment ID for the case
+- `repeat`: Replicate the previously known value until it finds a new segment ID for the case
             when a polygon have no attributes (may happen for the islands in a country).
 
 Returns a Vector{Float64} with the same length as the number of segments in D. Its content are