Hello,
I have a big problem at draw a circle at map.
It funcs but the point will draw a little bit out of clicked point.
So some cirles is draw like a raster.
I have check the results of x and y that are calculated.
It looks like correct.
But the cirlce is not set at the correct place, so I can´t draw righly.
Here some code :
PHP draw a blank svg-layer:
print('<svg id="PAINT" width="100%" height="100%" viewBox="'.$x.' '.$y.'
'.$width.' '.$height.'" save="snapshot"
style="shape-rendering:geometricPrecision;
text-rendering:geometricPrecision;" >');
$color="lightblue";
print ('<rect id="PAINTr" stroke="rgb(0,0,0)" onmousemove="" onmouseout=""
onclick="draw_poly(evt)" fill="'.$color.'" x="'.$x.'" y="'.$y.'"
width="'.$width.'" height="'.-$height.'" opacity="'.$opo.'" />');
echo "</svg>";
Javascriptpart:
function draw_poly(evt)
{
var svgRoot = svgDocument.documentElement;
allWidth=window.innerWidth;
allHeight=window.innerHeight;
var xpos,ypos=0;
var quadrat=evt.getTarget();
//var allHeight=quadrat.getAttribute("height");
//alert (allHeight);
var paintsvg=svgdoc.getElementById("PAINT");
// Ausgleich der Seitenverhältnisse
var ausglh=1;
var
ausglv=(allWidth/allHeight)/(paintsvg.getElementById("PAINTr").getAttribute(
"width")/paintsvg.getElementById("PAINTr").getAttribute("height"));
if (ausglv>1)
{
}
var vp=paintsvg.getAttribute("viewBox").split(" ")
var xm=evt.getClientX();
var ym=evt.getClientY();
scale = svgRoot.getCurrentScale();
trans = svgRoot.getCurrentTranslate();
var nx =(xm/scale + ((- trans.x ) / scale));
var ny =(ym/scale + ((- trans.y ) / scale)) ;
alert(nx+","+ny+"scale"+scale+"transx"+trans.x+"transy"+trans.y+','+ausglv+'
xm='+xm+'ym='+ym+'vp2'+vp[2]);
nx=nx/(allWidth/parseFloat(vp[2]))/ausglh;
nx+=parseFloat(vp[0])
ny=ny/(-allHeight/parseFloat(vp[3]))/ausglv;
ny+=parseFloat(vp[1])
alert(nx+","+ny+"scale"+scale+"transx"+trans.x+"transy"+trans.y+','+ausglv+'
xm='+xm+'ym='+ym);
r=svgdoc.createElement("circle");
r.setAttribute("cx",nx);
r.setAttribute("cy",ny);
r.setAttribute("r",4);
r.setAttribute("fill","red");
r=paintsvg.appendChild(r);
}
What ´swrong
Could anyone hejp me?
Burkhard Stollenwerk
----- Original Message -----
From: "Roger L. Cauvin" <[EMAIL PROTECTED]>
To: <svg-developers@yahoogroups.com>
Sent: Monday, January 10, 2005 7:35 PM
Subject: [svg-developers] Re: real time data publishing using servlets
>
>
> > Roger, I want SVG to animate as the sensor
> > data changes - so at a freq greater than say
> > 100Hz.
>
> In that case, you'll need to implement some sort of client/server
> communication as another participant in this discussion recommended. Our
> need was a bit simpler; we wanted our survey analysis tool to display
charts
> based on user-defined criteria. There was no need for SVG animation.
>
> --
> Roger L. Cauvin
> [EMAIL PROTECTED]
> Cauvin, Inc.
> http://www.cauvin-inc.com
>
>
>
> -----
> To unsubscribe send a message to:
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