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

[Puneet Kishor]

ok... I figured it out... the code below works for drawing a triangle on an
"acetate" layer...

questions...

1. this worked for me...

$lineObj1->addXY($x1, $y1);

But this did not...

$pointObj1 = setXY($x1, $y1);
$lineObj1->add($pointObj1);


why not?

2. How do I draw a circle around a given point?


free beer at the mapserver users meeting in the twin cities (if and when it
happens) to the first person who answers this. my eyes are hurting.


tia,

pk/








 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...
 
$x1 = 250; $y1 = 250;
$x2 = $x1 + 5000; $y2 = $y1 + 7000;
$x3 = $x1 + 3000; $y3 = $y1;
$x4 = $x1; $y4 = $y1;

$layerObj = $mapObj->getlayerbyname("acetate");
$classObj = $layerObj->getClass(0);
$imgObj = $mapObj->prepareImage();
$shpObj = ms_newShapeObj(2);

$lineObj1 = ms_newLineObj();
$lineObj1->addXY($x1, $y1);
$lineObj1->addXY($x2, $y2);
$lineObj1->addXY($x2, $y2);
$lineObj1->addXY($x3, $y3);
$lineObj1->addXY($x3, $y3);
$lineObj1->addXY($x4, $y4);
$shpObj->add($lineObj1);

$shpObj->draw($mapObj, $layerObj, $imgObj, 0, "foo");
$acUrl = $imgObj->saveWebImage(MS_PNG, 0, 0, -1);
$layerObj->set("status", 1);
$lineObj1->free();
$imgObj->free();
$shpObj->free();