Comments inline ...
On Oct 18, 2005, at 11:21 AM, Damon Butler wrote:
# Should I have to set these? Can they be made tranparent?
Yes. And Yes.
#c.label.backgroundcolor = mapscript.colorObj(255, 255, 255)
#c.label.outlinecolor = mapscript.colorObj(255, 255, 255)
They can be made transparent by supplying negative numbers for the R,
G,
and B values.
c.label.backgroundcolor = mapscript.colorObj(-1, -1, -1)
c.label.outlinecolor = mapscript.colorObj(-1, -1, -1)
Never done must this be! Proper usage is
c.label.backgroundcolor.setRGB(-1, -1, -1)
c.label.outlinecolor.setRGB(-1, -1, -1)
Otherwise the previously defined colors will be dereferenced improperly
and never cleaned up by Python's garbage collector. Anyhow, these
attributes begin with default values (-1, -1, -1), so no need to alter
them if you want the no-background default.
But I'm afraid that I don't have any insights into your other queries
(repeated below).
--Damon
I'm also having to specify c.label.minsize and c.label.maxsize,
otherwise the labels come out just one or two pixels tall. It's like
there are some defaults that are assumed in the map file but that need
to be made explicit in the mapscript version.
Any insights appreciated,
No, the defaults are fine with mapscript. If you have turned on auto
label scaling, then you will need to set minsize and maxsize.
Otherwise, class.label.size controls all.
--David Niergarth
P.S. I wonder if anyone has ever written a code generator that could
translate map file fragments (like a layer) to mapscript API calls?
I'm
discovering doing it by hand is pretty tedious.
David, define all this boilerplate in a mapfile, and then modify that
configuration with mapscript:
m = mapscript.mapObj('template.map')
l = m.getLayer(0)
l.status = mapscript.MS_ON
l.name = 'activated layer'
...
cheers,
Sean
--
Sean Gillies
sgillies at frii dot com
http://zcologia.com
