Yes, we can make a spatial filter as I mentioned in my previous mail. It's
fast. Of course we must take care of some FDO still has a bug that make it
return a wrong result of spatial filter. I worked with MySql before and
apparently it still has a big problem with spatial relationship. Now I use
PostGis and everything look good.
Did someone check legend.php? I found Firefox do not like it. Pls have a look
at line 81. It send only 6 args to function that need 7 args. Legend.php is
called after mapFrame.refresh()
Thank's
Ary Sucaya
----- Original Message ----
From: Luiz Marcio Viana <[EMAIL PROTECTED]>
To: MapGuide Users Mail List <[email protected]>
Sent: Thursday, January 3, 2008 1:12:00 PM
Subject: Re: [mapguide-users] Sql For Data Filter
I think is possible to put a spatial query in the <Filter> tag of the layer
definition, but this is high dependent of the database.
And I don't know if the time to process this query is more complex than filter
using the ids of the parcels.
But to solve this problem, you can make a spatial query using SelectFeatures
and get the ids of parcels and follow make the filter using the ids.
Regards,
Luiz Marcio
----- Original Message -----
From: ary sucaya
To: MapGuide Users Mail List
Sent: Wednesday, January 02, 2008 6:41 PM
Subject: Re: [mapguide-users] Sql For Data Filter
I got it, as Kenneth said:
$node->nodeValue = the_geom intersects(GEOMFROMTEXT('POLYGON((x1 y1,x2 y1,x2
y2,x1 y1,x1 y1))')";)
Regards,
Ary Sucaya
----- Original Message ----
From: ary sucaya <[EMAIL PROTECTED]>
To: MapGuide Users Mail List <[email protected]>
Sent: Wednesday, January 2, 2008 9:51:21 PM
Subject: Re: [mapguide-users] Sql For Data Filter
Luiz,
Maybe you're right Luiz. But still i found difficulties to apply a spatial
filter for those parcels. Here is how i made a filter to select parcels owned
by SCH*:
$xpath = new DOMXPath($domDocument);
$query = '//VectorLayerDefinition/Filter';
$nodes = $xpath->query($query);
foreach ($nodes as $node )
{
$node->nodeValue = "NAME LIKE 'SCH%'";
}
My question is how to apply spatial filter into this node value?
Regards,
Ary Sucaya
----- Original Message ----
From: Luiz Marcio Viana <[EMAIL PROTECTED]>
To: MapGuide Users Mail List <[email protected]>
Sent: Wednesday, January 2, 2008 4:33:30 PM
Subject: Re: [mapguide-users] Sql For Data Filter
Ary Sucaya,
I don't know, how is the spatial capability provided by the FDO Provider for
PostGIS (I think is the GDAL provider, isn't it?), but you can apply a spatial
filter using the geometry of the district layer as a filter to select the
parcels.
This is a simple solution wich works almost independently of the provider.
Regards,
Luiz Marcio
----- Original Message -----
From: ary sucaya
To: MapGuide Users Mail List
Sent: Wednesday, January 02, 2008 6:32 AM
Subject: Re: [mapguide-users] Sql For Data Filter
Thanks Kenneth,
I'm looking for sample code of making data filter programmatically and save in
into current session.
Regards,
Ary Sucaya
----- Original Message ----
From: "Kenneth, GEOGRAF A/S" <[EMAIL PROTECTED]>
To: MapGuide Users Mail List <[email protected]>
Sent: Wednesday, January 2, 2008 10:08:48 AM
Subject: Re: [mapguide-users] Sql For Data Filter
I think the "Query" part of the "Generic Tasks" is close to what you want:
http://data.mapguide.com/mapguide/gt/index.php
More samples:
http://mapguide.osgeo.org/livegallery.html
Regards, Kenneth, GEOGRAF A/S
ary sucaya skrev:
Great!, I will try
I was wondering if there is a sample code for it..
Thank v much..
regards,
Ary Sucaya
----- Original Message ----
From: "Kenneth, GEOGRAF A/S" <[EMAIL PROTECTED]>
To: MapGuide Users Mail List <[email protected]>
Sent: Wednesday, January 2, 2008 8:46:05 AM
Subject: Re: [mapguide-users] Sql For Data Filter
I don't have a list of what the different providers support.
I have used the OGR provider, and it supports PostGIS and limited SQL.
My approach to your problem would be to start out with the layer hidden.
When you want to display the correct district, you read out the WKT of the
feature (district) you want to perform the intersection test with.
Then you update the filter on the layer to reflect this:
GeoColumn Intersects GEOMFROMTEXT('....wkt....')
Then show the layer.
You should copy the layer into the session repository before altering it.
If you want to theme it, you can create multiple copies of the layer and apply
theming to the individual layers.
Regards, Kenneth, GEOGRAF A/S
ary sucaya skrev:
Thank for your reply,
Can you pls inform me what provider support full sql syntax? I use postgis and
it seem to be not support full sql syntax.
In my case, i can't use join tables because i need spatial relationship between
2 tables. For examples in Mapguide sample there are 11 districts. At first
time, i want to hide parcels. Then i want to make a query to show parcels in
particular distric and i want maps show parcels which are in that query result.
In this case, join between two tables may not help me. I make use spatial
relationship such as intersects or within in this case.
Regards,
Ary Sucaya
----- Original Message ----
From: "Kenneth, GEOGRAF A/S" <[EMAIL PROTECTED]>
To: MapGuide Users Mail List <[email protected]>
Sent: Tuesday, January 1, 2008 5:25:05 PM
Subject: Re: [mapguide-users] Sql For Data Filter
That depends on the provider. Some providers supports full SQL syntax.
I can't see how you can join tables with a filter, as that is the equvalent of
the SQL WHERE construct.
You can try to setup a Join on the featuresource, but I have had limited
success with joins.
Regards, Kenneth, GEOGRAF A/S
ary sucaya skrev:
Hello,
I was wondering if i can put a complex sql statement at 'Filter applied to
data' textbox on Layer Editor. I need to show some data from my postgis table
and sql to select this data involving 2 or more table.
Regs,
ary sucaya
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