Line ends rendering for ellipse point symbol lines changed from ROUND to BUTT in AGG

[havatv]

In 5.6 beta5, the line end rendering for filled (ellipse) symbol lines has changed for AGG (but not for GD). In 5.6 beta5, ellipse symbol lines are rendered as "BUTT" with AGG - it used to be "ROUND" in 5.4.2. "BUTT" is logical as the default behaviour for line ends, but when rendering lines using a symbol, one would expect the ends to also have the shape of the defining symbol (ellipse in this case).

This is the kind of symbol usage that we are talking about:

SYMBOL
  NAME "circlef"
  TYPE ellipse
  FILLED true
  POINTS 1 1 END
END

...
    STYLE
      COLOR 0 0 0
      SYMBOL "circlef"
      SIZE 30
    END 
...

[tbonfort]

Supporting thick lines with a circle symbol is not the way to go anymore, and I think 6.0 is the right time to start enforcing this.

closing this, as for now using that symbol for a line will not result in *any* line being drawn, but the circle symbol will be used as markers along the line (consistent with the other symbols).