[
Date Prev][
Date Next][
Thread Prev][
Thread Next][
Date Index][
Thread Index]
[
List Home]
|
Re: [udig-devel] Re: Renderers being cached
|
Thanks Emily - you rock!
I have added a remove method to the IBlackboard interface so that we can
actually clean up entries on the style blackboard. I will try the
updated code to call this remove method and let you know how it works out.
However I am still a little confused; because after a re-open the map
would change its mind about what renderer to display? Oh wait I see it
now; "saving" the color had an exception prior to the event notification
being sent out - so the map never got a chance to clean in.
I will learn to write defencive code I will!
Jody
Emily Gouge wrote:
Jody, I think I've fixed this. It has nothing to do with renderers;
it was related to ColorStyle.java.
In the save method it assumed that the value was a not null color;
however the RemoveColorOp.java class you tried to set the value of the
ColorStyle to null. This was causing an error that I think caused the
problem you saw.
I added an "if color != null" check in the save function of the
ColorStyle.java class; hopefully this will fix your issue.
Emily
Emily Gouge wrote:
Hello Jody,
Does this renderer selection problem occur in both the tiled and
non-tiled rendering systems? Are you using one of the tutorial
examples to test; or do you have a specific example you could send me?
I shouldn't be holding on to renderers specifically in the tiled
system; however I do hold onto tiles. So if you zoom in; then zoom
back out it may be displaying the previously rendered tiles. I
thought there was an event to clear tiles when styles change but
there may not be.
No, no progress on the mapgraphic front; although I haven't had much
time to look at it. Everything I've tried has failed and I keep
coming back to needing to know in the rendering system if the layer
I'm rendering is a mapgraphic or not.
Emily
Jody Garnett wrote:
Hi Emily:
I am having some trouble with renderer selection on trunk; it feels
like
some class is holding onto the renderer that was selected. So when I
change
the contents of the style blackboard (in order to use a different
renderer)
it is *never* chosen; something is holding onto the first renderer.
Closing the Map and opening it again solves the problem!
I suspect you started holding on to this information in order to
optimize
the tiled rendering system? I also wonder if you have made any
progress with
using mapgraphics on the tiled renderer?
Jody
_______________________________________________
User-friendly Desktop Internet GIS (uDig)
http://udig.refractions.net
http://lists.refractions.net/mailman/listinfo/udig-devel
