[mapserver-users] drawing acetate shapes with PHP/Mapscript

[Puneet Kishor]

once a map is drawn, I'd like to add a triangle, a circle, or a square, or
whatever... (but, let's take the example of a triangle for now) on top of
everything.

the way I understand it, I would have to --

1. have an "acetate" layer with 'STATUS off' in my map file like so...

LAYER
  NAME "acetate"
  TYPE polygon
  STATUS off
  CLASS
    OUTLINECOLOR 255 0 0                        # red outline
    COLOR 0 255 0                               # green fill
  END
END

2. and use Mapscript like so...

$layerObj = $mapObj->getlayerbyname("acetate"); // new layerObj
$classObj = $layerObj->getClass(0);             // classObj
$imgObj = $mapObj->draw();                      // imgObj
$shpObj = ms_newShapeObj(MS_SHAPE_LINE);        // new shpObj

$pointObj1 = ms_newPointObj();                  // point1
$pointObj1->setXY(300, 300);

$pointObj2 = ms_newPointObj();                  // point2
$pointObj2->setXY(450, 600);
    
$pointObj3 = ms_newPointObj();                  // point3
$pointObj3->setXY(600, 300);

$pointObj4 = ms_newPointObj();                  // point4
$pointObj4->setXY(300, 300);

$lineObj = ms_newLineObj();                     // new line
$lineObj->add($pointObj1);
$lineObj->add($pointObj2);
$lineObj->add($pointObj3);
$lineObj->add($pointObj4);
$shpObj->draw($mapObj, $layerObj, $imgObj, 0, "foo")

$layerObj->set("status", 1);                    // turn on the layer



==============


am I right or am I way off?

Tia,

pk/