hatching in geoserver results in gaps if angle != 0

[pvgenuchten]

Geoserver currently supports hatching in -45,0,45,90 degrees, using backslash, vertline, slash and horline symbols.

Current implementation to rotate horline is not optimal, because it leaves gaps if the angle not is 0.

Suggestion when creating creating sld for hatch in geoserver is to round to the nearest 45% angle and select the relevant symbol

A conversion could be something like:

quarters=Math.floor((angle+22.5)/45);
quarter = quarters-Math.floor(quarters/4)*4;

if quarter==0:
  sym="vertline" 
else if quarter==1:
  sym="slash" 
else if quarter==2:
 sym="horline" 
else:
  sym="backslash" 

[pvgenuchten]

see also https://gis.stackexchange.com/questions/262417/sld-break-in-hatch#263007 for alternative approach

[pvgenuchten]

in latest version hatch has been fully removed? I get empty fill when using hatch on geoserver...