[Mapserver-users] annotating multiple inline features

[Steve Lime]

What you write helped jog my memory. Class index and label text values
are indeed held
within a shapeObj structure. This was done so shapes were more
autonomous. So, you
should be able to set those parameters and then call the draw method.
It probably worked
for you before because the default classindex for a shape is 0.

Steve

Stephen Lime
Data & Applications Manager

Minnesota DNR
500 Lafayette Road
St. Paul, MN 55155
651-297-2937

>>> Dylan Keon <keon at nacse.org> 03/21/03 12:00PM >>>
Yeah, I call drawLabelCache() right before saveWebImage().

That bug report from the 3.5 era mentions the shape->draw() method no 
longer takes class index and text string arguments.  The documentation

hasn't changed, though.  What's the status of shape->draw() in 3.6.x
and 
3.7?

Seems like another way to do this might be to add an annotation layer
to 
the mapfile, then for each line create a new shape containing one
point, 
and use shape->set('text', 'test') to set annotation for that feature.

I'll give this a shot.  Anyone else tried this?

Thanks,
Dylan


Steve Lime wrote:
> Are you drawing the label cache further down in your code?
> 
> 
>>>>Dylan Keon <keon at nacse.org> 03/20/03 06:22PM >>>
> 
> Hi,
> 
> I'd like to label multiple inline features with text from user input.

>  From the 3.7 PHP MapScript docs it sounds like the ShapeObj draw() 
> method should do this ("The text string is used to annotate the
> shape"). 
>   I figured I could label each feature this way as long as each
feature
> 
> was put in a separate shape.  The features are created just fine, but
I
> 
> don't get any labels.  I'm using 3.7 from a week ago.
> 
> Is it related to this old bug?
> http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=36 
> 
> If this method is no longer available, can someone recommend a way to

> label inline features in a similar manner?
> 
> Thanks,
> Dylan
> 
> 
>    $image = $map->draw();
>    $layer = $map->getLayerByName('flightlines');
> 
>    for($i = 0; $i <= (count($beginlat) - 1); $i++) { 
> 
>      $shape = ms_newShapeObj(MS_SHAPE_LINE); 
> 
>      $line = ms_newLineObj(); 
> 
>      $line->addXY($beginlon[$i], $beginlat[$i]);
>      $line->addXY($endlon[$i], $endlat[$i]);
>      $shape->add($line); 
> 
>      $shape->draw($map, $layer, $image, 0, $label[$i]); 
> 
>      $line->free(); 
> 
>      $shape->free(); 
> 
>    }
> 
> 
> LAYER
>    NAME flightlines
>    STATUS ON
>    #DATA #not needed, dynamic layer
>    TYPE LINE
>    CLASS
>      COLOR 255 0 0
>      SYMBOL 'circle'
>      SIZE 4
>      LABEL
>        TYPE TRUETYPE
>        FONT ARIAL
>        SIZE 14
>        COLOR 0 0 0
>      END
>    END
> END