#!F-adobe-helvetica-medium-r-normal--18* #!N #!CDarkGreen #!N #!Rall670 Positions #!N #!EC #!N #!N If the locations of the data values in #!F-adobe-times-medium-i-normal--18* variable1 #!EF do not form a regular lattice (with origins at 0.0 and spacings of 1.0), the name of a netCDF variable that contains the position information must be specified as an attribute for #!F-adobe-times-bold-i-normal--18* variable1 #!EF . #!N #!N There are five different types of position specifications: none, completely regular, completely irregular, and two types of partially regular. #!N #!N Completely irregular is assumed if the following attribute is specified: #!CForestGreen #!N #!N #!F-adobe-courier-bold-r-normal--18* #!N #!F-adobe-times-bold-i-normal--18* variable1 #!EF :positions = " #!F-adobe-times-bold-i-normal--18* variable2 #!EF "; #!EF #!N #!N #!EC where #!F-adobe-times-bold-i-normal--18* variable2 #!EF is an array of vectors, one for each grid point, defining its location. The dimensionality of the data space is determined by the number of items in a vector. #!N #!N Regular positions can be specified with just the origin and spacing between grid points along each axis in compact form. The following attribute is used: #!CForestGreen #!N #!N #!F-adobe-courier-bold-r-normal--18* #!N #!F-adobe-times-bold-i-normal--18* variable1 #!EF :positions = " #!F-adobe-times-bold-i-normal--18* variable2 #!EF , compact"; #!EF #!N #!N #!EC where #!F-adobe-times-bold-i-normal--18* variable2 #!EF is the name of a #!F-adobe-times-medium-i-normal--18* n*2 #!EF array containing origin, delta pairs for the spacing and location of positions along each axis. The number of positions along each axis is determined from the shape of #!F-adobe-times-bold-i-normal--18* variable1 #!EF . #!N #!N Positions that can be specified as the product of arrays containing the location of points along each axis can be input in product form. Use the following attribute: #!CForestGreen #!N #!N #!F-adobe-courier-bold-r-normal--18* #!N #!F-adobe-times-bold-i-normal--18* variable1 #!EF :positions = " #!F-adobe-times-bold-i-normal--18* variable2a #!EF , product; #!N #!F-adobe-times-bold-i-normal--18* variable2b #!EF , product; #!N . #!N . #!N . #!N #!F-adobe-times-bold-i-normal--18* variable2x #!EF , product"; #!EF #!N #!N #!EC where the #!F-adobe-times-bold-i-normal--18* variable2 #!EF 's are each the name of an array containing a list of positions along that axis. The number of items in each array must match the length of the corresponding axis in the original #!F-adobe-times-bold-i-normal--18* variable1 #!EF data array. #!N #!N If any of the axes in an partially regular product array are actually regular, they can be specified in compact form: #!CForestGreen #!N #!N #!F-adobe-courier-bold-r-normal--18* #!N #!F-adobe-times-bold-i-normal--18* variable1 #!EF :positions = " #!F-adobe-times-bold-i-normal--18* variable2a #!EF , product, compact; #!N #!F-adobe-times-bold-i-normal--18* variable2b #!EF , product; #!N . #!N . #!N . #!N #!F-adobe-times-bold-i-normal--18* variable2x #!EF , product"; #!EF #!N #!N #!EC where #!F-adobe-times-bold-i-normal--18* variable2a #!EF is the name of an origin, delta array, and the rest are position lists as before. #!N #!N #!N #!F-adobe-times-medium-i-normal--18* Next Topic #!EF #!N #!N #!Lall671,dxall672 h Connections #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
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