Attributes in tile indexes?

[Jeff Dege]

OK - I knew I had to be doming something stupid.

To tell a layer to draw using a tileindex shapefile, you include the
commands:

   TILEINDEX "tileindex"
   TILEITEM "LOCATION"

Using:

   DATA "tileindex"

won't work.

Now, after all of that, drawing with the split shapefiles is slower than
with the original.  So there's still some playing to do.
 

> -----Original Message-----
> From: UMN MapServer Users List 
> [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of Jeff Dege
> Sent: Monday, April 23, 2007 9:53 AM
> To: MAPSERVER-USERS at LISTS.UMN.EDU
> Subject: Re: [UMN_MAPSERVER-USERS] Attributes in tile indexes?
> 
> Well, I've been looking at this in more detail, and finding that the
> tileindex layer isn't drawing at all.  With all other layers 
> turned off,
> when I use shp2img with an extent that causes the tile layer 
> to draw, I
> get a blank image.  When I change the layer to use the original
> shapefile, I get the data displayed.  (And the layer takes 40 
> seconds to
> draw, even after I've run shptree on the shapefile, which is why I've
> been playing around with tiling.)
> 
> I identified the individual tile shapefile that contains the area I'm
> trying to draw and used it directly, and it works fine.  So the
> splitting apart seems to be working.  But the tileindex 
> shapefile seems
> to be broken.
> 
> > -----Original Message-----
> > From: UMN MapServer Users List 
> > [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of Stephen 
> Woodbridge
> > Sent: Saturday, April 21, 2007 7:15 AM
> > To: MAPSERVER-USERS at LISTS.UMN.EDU
> > Subject: Re: [UMN_MAPSERVER-USERS] Attributes in tile indexes?
> > 
> > Jeff,
> > 
> > This should just work. There is nothing special you should 
> > have to do. I 
> > do it all the time with my mapfiles. I use shp2tile to break 
> > mine up but 
> > that should not make a difference.
> > 
> > First I would try changing your layer to use just one of 
> the smaller 
> > shape files without the tileindex and see if that works and 
> > that you can 
> > display the labels.
> > 
> > You might also want to post info about what OS, version of 
> mapserver, 
> > and the LAYER block in question.
> > 
> > -Steve W
> > 
> > Jeff Dege wrote:
> > > I have a shape file that's too big to draw maps with - 
> takes far too
> > > long.
> > > 
> > > In an attempt to speed things up, I split it into 16 
> > smaller shapefiles,
> > > using:
> > > 
> > >    ogr2ogr -f "ESRI Shapefile" -spat xmin ymin xmax ymax newXX.shp
> > > old.shp
> > > 
> > > Then did a shptree on each of these new files, then a 
> shptinidex to
> > > create a single tile index shapefile on them, and tried to 
> > build a map.
> > > 
> > > It works fine, so long as I don't try to display labels.  
> > But if I do, I
> > > get errors:
> > > 
> > >    msDBFGetItemIndex(): Item 'NAME' not found.
> > > 
> > > Where "NAME" is the attribute I'm trying to use for the 
> > label.  It looks
> > > like the tileindex shapefile doesn't expose the attributes of the
> > > underlying shape tiles.  I've done an ogrinfo on the 
> > shapefiles that I'd
> > > generated, and the attributes are there.
> > > 
> > > Can I expose the attributes through the tileindex?
> > > 
> > > How?
> > 
>