[mapserver-dev] Call for a 5.6.1 release...

Tamas Szekeres szekerest at gmail.com
Sun Jan 3 07:35:54 EST 2010


I've also added some fixes for 5.6, and I would also require further fixes
with regards to the querymap drawing which would indeed validate a new

IMHO adding implicit layers to the map this way would bring in a couple of
problems for the existing applications. It seems we make an assumption that
the mapObj is destroyed after each drawQuery, however that's not the case
with many of the mapscript applications. This approach would bring in extra
unexpected layers for the users which are difficult to interpret.
There are some further issues with msCopyLayer which doesn't seem to work
correctly when the destination have already been initialized (see the
implementation of msCopyProjection, insertFeatureList, copying the classes
etc). This would at least result in memory leaks and assertion failures.

As a quick solution I've created a patch (
http://trac.osgeo.org/mapserver/attachment/ticket/3069/mapdraw.c.patch) to
implement this kind of drawing without requiring to add the layer to the

Not strictly related to this problem, but in a further release we should
also consider how we could add futher styles (like transparency or hatch
patterns) to the highlighted features. The current approach provides only a
couple of colors to be replaced temporarily with the highligted items and
most of my current use cases require to copy the selected features to inline
layers for a more advanced styling. For this reason it would be appropriate
to define the query styles by using some 'template' layers (with no data
connections) which could be referred from each queryable layers. I suspect
this approach would work as far as msDrawShape(map, layer, &shape,...) would
work if we specify such template layers as the second parameter.

Best regards,


2010/1/2 Lime, Steve D (DNR) <Steve.Lime at state.mn.us>

> Hi all: I just fixed a couple of inconvenient bugs in 5.6 that broke some
> point-based queries via the CGI. Without the fixes some
> folks won't be able to upgrade. I've got a whole bunch of query test cases
> I need to get into the automated testing to avoid this
> in the future. Are others sitting on changes in the 5.6 trunk that could go
> into 5.6.1?
> Steve
> BTW Ticket is http://trac.osgeo.org/mapserver/ticket/3246...
> _______________________________________________
> mapserver-dev mailing list
> mapserver-dev at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapserver-dev
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