[mkgmap-dev] Problems with sea in overview map

Fri May 21 10:26:16 BST 2021

Hi Gerd

When loading precomp sea tiles, shouldn't SeaGenerator should replace
all nodes on the edges of all the precomp tiles used with nodes from a
shared coordPool. Maybe it needs to replace even more to cover the cut
lines. 

Ticker

On Thu, 2021-05-20 at 14:09 +0000, Gerd Petermann wrote:
> Hi Ticker,
> 
> reg. Also thinking that shapeMerge might need to operate at
> highPrecision :
> ShapeMerger doesn't compare positions, it checks for identical
> Coords.
> 
> For the overview map the ovm_* data is read and
> MapBuilder.prepShapesForMerge() is used to make equal Coord instances
> identical. This is not 100% safe, no matter what precision we use,
> when the original data has touching rings with equal, but different
> Coords the OverviewBuilder can see identical ones.
> 
> Gerd