Hi,
You can play with the layer blending. You can use "multiply" , "add",
"subtract"... (something like that, I am not in front of a
computer). There are also the same blending options in the vector object
styling so that you can select what happens when two objects intersect in the
same layer.
Maybe that could help?
Nicolas Cadieux M.Sc.
Les Entreprises Archéotec inc. 
8548, rue Saint-Denis Montréal H2P 2H2
Téléphone: 514.381.5112  Fax: 514.381.4995
www.archeotec.ca
On Jul 30, 2015 5:45 PM, "berndv. [via OSGeo.org]"
<[email protected]> wrote:
Hi Shane, I think without a screenshot, we have no chance to really get an idea
what it's all about. Best to use a service like http://imgur.com/ and post
the link cause the list will bounce too heavy attachments. Bernd Am 30.07.2015,
23:11 Uhr, schrieb Tom Lennon < [hidden email] >: <blockquote
style="border-left:2px solid #cccccc;padding:0 1em"
style="margin:0 0 0.8ex;border-left:#0000ff 2px
solid;padding-left:1ex"> Hi Shane: Have you tried moving the parking
lot layer to below the road layer? That way roads over parking lots would
always show. Tom On Thu, Jul 30, 2015 at 3:05 PM, Shane < [hidden email]
> wrote: <blockquote style="border-left:2px solid #cccccc;padding:0
1em" style="margin:0 0 0 0.8ex;border-left:1px #ccc
solid;padding-left:1ex"> Hi group,
I have a layer with roads which are lines having a style of gray with thin
black outlines on either side. Another layer (parking lots) has polygons
having the same color as the roads but not outlined. The parking lot layer is
above the road layer in rendering order. So road outlines are hidden by the
parking lot layer when a parking lot intersects a road.
Here's the trouble - having parking lots with no outline, but roads with
outlines looks odd. Is there some way to have the outlines of both road and
parking lot layers removed from rendering when these two features cross?
One method I've considered is to draw the roads and parking lots as
polygons in the same layer? It would make drawing the roads non-trivial, but
the problem with outlines would be eliminated.
Shane
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