Error when create annotation layer in PHPMapscript

[Krung Saengpole]

Hi all,

I have a question about creating annotation layer using phpmapscript. I created layer as follow:

 $layer=ms_newLayerObj($map);
 $layer->set("name", $name);
 $layer->set("data", $data);
 $layer->set("type", MS_LAYER_ANNOTAION);
 $layer->set("status", MS_ON);
 $layer->set("labelitem", $item);
 $class=ms_newClassObj($layer);
 
 $class->label->color->setRGB($color[0],$color[1],$color[2]);
 $class->label->outlinecolor->setRGB($outline[0],$outline[1],$outline[2]);
 $class->label->set("type", MS_TRUETYPE); 
 $class->label->set("font", "cordia");        // defned in fontlist file
 $class->label->set("size", 14);
 $class->label->set("position", MS_CC);
 $class->label->set("encoding", "tis620");

when it came to 

$img=$map->draw();

it showed 9 or 10 sentences of:

Warning: [MapServer Error]: msQueryByRect(): No matching record(s) found. in D:\Work\testing\area50.php on line 40
.....
.....
.....

and error again when it came to

$img->saveImage($file);

as

Fatal error: Call to a member function saveImage() on a non-object in D:\Work\biomass\area50.php on line 41

But if I created this layer with polygon type, it'd no trouble (surely a little diffenrent code).  Have I done anything wrong with the code?

TIA
Krung

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