Want to get gd handle after mapscript rendering is complete
karl-mapserver at SC.COM
Thu Nov 17 02:37:12 EST 2005
Hi... First of all, three cheers to the Mapserver development team!
Rather than emitting a map image to a file or to memory, I'd like to
get 'hold of the gdImagePtr and take it from there on my own.
For example, using Tcl, I have a gdIOCtx handler that lets me write a
gd image directly to a socket.
I know very little about swig, so I am really winging it here. I
...to mapscript/swiginc/image.i, and the results will actually
compile, but it wraps up a Tcl interface (in my case) for map images
called gdHandle instantiates a Tcl object containing the contents of
the gdImagePtr structure. This isn't what I want.
Really what I want is to add a new method to the mapscript image
class that will invoke
tclgd_newGDObject (Tcl_Interp *interp, Tcl_Obj *nameObj, gdImagePtr im)
where nameObj is an argument passed through the method invocation and
im is set to self->img.gd, so invoking
$image gdHandle frammistan
...would invoke tclgd_newGDObject(interp, Tcl_NewStringObj
("frammistan", -1), self->img.gd); and return "frammistan" (because
if I pass "#auto" as the name, like incrTcl, it returns a unique
Then I can do all my gd magic using my "frammistan" command.
Anyone got a quick solution or a pointer for where to look? Thanks
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