enable soft text outlining in labels

[tbonfort]

ticket to track changes for adding softer outlines on label text with the AGG renderer

[tbonfort]

example output

[tbonfort]

commited in r7121:

• mapfile.h gets a new #define OUTLINEWIDTH
• maplexer.l gets a new line for OUTLINEWIDTH
• mapserver.h has a new "int outlinewidth" entry for the labelObj typedef
• mapfile.c is modified for the initialisation, parsing and saving of the labelObj

OUTLINEWIDTH defaults to 1

when rendering, if OUTLINEWIDTH=1, the current "hard" outlining is used. if OUTLINEWIDTH>1 , the softer outlining kicks in.

note that for some reason I don't understand very well yet, best results are obtained when using an odd outlinewidth (3 and 5 are reasonable values)

leaving open until these are completed:

• documentation
• mapscript setters and getters to label->outlinewidth
• my locally generated maplexer.c is confirmed to work on other platforms

[tbonfort]

passing over to mapscript maintainers

[sdlime]

Actually should go to PHP/MapScript folks. The Swig version will take this into account automatically. Reassigning to Dan et al.

Steve

[dmorissette]

Assigned to Alan to add outlinewidth to labelObj in PHP MapScript

[aboudreault]

The changes have been made in PHP/MapScript.

[tbonfort]

off to documentation then. thanks Alan.

[tbonfort]

docs updated.