Hi to all,
In the past days I have been answering some questions about it but, by now, I
haven’t achieved my goal. I will try to explain what I have and what I want
(need, in fact):
I’m displaying some cartography: lines and polygons from shape files and points
from a Postgis table (without filtering).
At the same time, I have a form to query the postgis table applying some
filters. I am making these queries using PHP and SQL in the usual way. I don’t
use mapscript queryByAttibutes, because SQL queries are more flexible and
powerful (I think). Due to these facts what I have is: on one side, a map
showing all the points (with no filter) and, on the other side, a filtered list
of these same points.
What I’m looking to do is:
- Zoom to all my selection, changing simbology in order to show some
points with the default simbology (map file) and others (the result of my
selection) with a special simbology.
- Zoom to one chosen point in my selection. By now, I’m doing it using
zoomToExtents, passing as parameters x and y of the point (retrieved in the sql
query). This works fine but I need to change the simbology of the selected
point in order to make it clearly visible between the others.
What I’m trying in order to change simbology for selected points is something
like this:
$oMap = ms_newMapObj($szMapFile);
$oLayer = $oMap->getLayerByName("EMPRESAS");
$oClass = $oLayer->getClass(0);
$oEstilo = $oClass->getStyle(0);
$oLayer->setFilter($sql);
$oEstilo->set("symbolname", "MARKER_EMPRESA_ALT");
But I have no results (at least no errors, too J)
Some help will be welcomed.
Thanks in advance to everyone.
Hans Castorp
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