[mapserver-users] buffer function

[Jeppe Lund Andersen]

hello all

I want to shrink or increase a shape, and for that I use the buffer
but if I look at the WKT streng I get a lot of points
and its because it make a curve around the corner

is it possible to set how many segment it shall make ?
so if I have a WKT with 4 corners
I would like a new WKT with 4 corners if I make the shape bigger

here is the wkt I have and the WKT it returns

Org WKT
POLYGON((482728.617354642 6285505.17359964, 482710.831068496
6285449.33496543, 482774.225119444 6285437.03746855, 482789.364489571
6285486.76734618, 482728.617354642 6285505.17359964))

New WKT after using Buffer

POLYGON ((482728.9073336222200000 6285506.1306326548000000,
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482789.7041995495100000 6285487.7078764187000000,
482789.7529978694500000 6285487.6887914045000000,
482789.8007295344700000 6285487.6671765493000000,
482789.8472634966600000 6285487.6430911981000000,
482789.8924719964300000 6285487.6166014764000000,
482789.9362309131000000 6285487.5877801124000000,
482789.9784201060500000 6285487.5567062357000000,
482790.0189237442100000 6285487.5234651603000000,
482790.0576306243300000 6285487.4881481500000000,
482790.0944344761700000 6285487.4508521678000000,
482790.1292342541300000 6285487.4116796106000000,
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482790.1924451800900000 6285487.3281398220000000,
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482728.8573073492200000 6285506.1443842184000000,
482728.9073336222200000 6285506.1306326548000000))


CODE
$ms_shapeFromWKT_main = ms_shapeObjFromWkt( $wktstreng  );
$new_shape = $ms_shapeFromWKT_main->Buffer(1);
echo($new_shape->toWKT() . "<br>");


Jeppe

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