> >> All (or almost all at least) of the lines I see go away >> when I zoom in. In gpsmapedit, I don't notice any gaps between the >> polygons at any level. I'll take a closer look tomorrow. > > OK here is an image of the sea polygons as seen in mapedit. This is > at level 4 (most zoomed out). > > Does this splitting happen at the generate sea stage or is it > being mangled later on? > > ..Steve
I don't think that the artefacts are from the new mp code. Why? mp takes the outer polygon po and the for each inner polygon pi it creates the subtraction po-pi and divides po' at half of the largest edge of pi. This creates 2 or more singular polygons from which the rest of the inner polygons are subtracted using the same algorithm. In the end an artefact created by the mp code should always divide an inner polygon at its half. For some islands this is true but there are several islands and lines for which this rule does not match. WanMil _______________________________________________ mkgmap-dev mailing list [email protected] http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
