Function IsoGrid(nodenum: smallint; Xlong1, Ylat1, Xlong2, Ylat2: single; gridV, gridH: integer; roundoff: single): integer;
IsoGrid calculates an isochrone grid based on 1 or more nodes entered through the standard NodeListSet functions.
The grid is created as a window defined by the coordinates in the parameter list. The number of grids can be defined vertically and horizontally. Grids with same value are joined vertically before they are saved to "isogrid.mif".
It is also possible to define a round-off parameter, which is applied to the cost before the grids are joined. This makes the resulting grid more compact. 10 rounds off to the nearest 10 etc.
Possible error codes: -10 -30 -32 -40 -43
Versions: Standard Pro
ActiveX / VCL / CLX component: RWcalc