Hi,
maybe 10m contours are too dense for this area?
Please try attached patch. I have moved D-P simplification before
rounding of coordination. This should preserve shape of the line a bit
better. I'm not sure if this is a safe modification, but it seems to works.
I haven't found, where is done simplification of lines at resolution 24.
Angle fixer probably works on roads only or I don't understand this code
correctly.
--
Best regards,
Andrzej
Index: MapBuilder.java
===================================================================
--- MapBuilder.java (revision 4677)
+++ MapBuilder.java (working copy)
@@ -1188,10 +1188,10 @@
LayerFilterChain filters = new LayerFilterChain(config);
if (enableLineCleanFilters && (res < 24)) {
+ if(reducePointError > 0)
+ filters.addFilter(new
DouglasPeuckerFilter(reducePointError));
filters.addFilter(new RoundCoordsFilter());
filters.addFilter(new SizeFilter(MIN_SIZE_LINE));
- if(reducePointError > 0)
- filters.addFilter(new
DouglasPeuckerFilter(reducePointError));
}
filters.addFilter(new LineSplitterFilter());
filters.addFilter(new RemoveEmpty());
@@ -1243,6 +1243,8 @@
LayerFilterChain filters = new LayerFilterChain(config);
filters.addFilter(new PolygonSplitterFilter());
if (enableLineCleanFilters && (res < 24)) {
+ if(reducePointErrorPolygon > 0)
+ filters.addFilter(new
DouglasPeuckerFilter(reducePointErrorPolygon));
filters.addFilter(new RoundCoordsFilter());
int sizefilterVal =
getMinSizePolygonForResolution(res);
if (sizefilterVal > 0)
@@ -1249,8 +1251,6 @@
filters.addFilter(new
SizeFilter(sizefilterVal));
//DouglasPeucker behaves at the moment not really
optimal at low zooms, but acceptable.
//Is there an similar algorithm for polygons?
- if(reducePointErrorPolygon > 0)
- filters.addFilter(new
DouglasPeuckerFilter(reducePointErrorPolygon));
}
filters.addFilter(new RemoveObsoletePointsFilter());
filters.addFilter(new RemoveEmpty());
_______________________________________________
mkgmap-dev mailing list
mkgmap-dev@lists.mkgmap.org.uk
https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
