Hi,
Once again thanks for helping. Here is the code.
Regards,
Rupesh
// create a line feature from a list of points
var pointList = [];
var newPoint = point;
for(var p=0; p<4; ++p) {
newPoint = new OpenLayers.Geometry.Point(newPoint.x +
Math.random(25),
newPoint.y +
Math.random(1));
pointList.push(newPoint);
}
var obj = new OpenLayers.Geometry.LineString(pointList);
var lineFeature = new OpenLayers.Feature.Vector(obj,null,style_green);
alert (obj.components.toString());
"Pierre GIRAUD" <[EMAIL PROTECTED]>
02/11/2008 05:39 PM
To
"Rupesh M G" <[EMAIL PROTECTED]>
cc
[email protected]
Subject
Re: [OpenLayers-Users] boundaries of lineString
Can you help us understand how you create your "linestring with
4points and obtain a polygon with 8 vertices" by providing a snippet
of code ?
Regards,
On Feb 11, 2008 11:53 AM, Rupesh M G <[EMAIL PROTECTED]> wrote:
>
> Thank you for the reply. But I think it is not correct.
>
> For example, if I draw the linestring with 4 points, I'm able to see a
> polygon with 8 vertices.
>
> But if I print the components.length of the linestring, it just says 4.
>
> I tried it with the example in the url
> http://openlayers.org/dev/examples/vector-features.html
>
>
> Regards,
> Rupesh
>
>
>
>
> "Pierre GIRAUD" <[EMAIL PROTECTED]>
>
> 02/11/2008 03:58 PM
>
> To
> "Rupesh M G" <[EMAIL PROTECTED]>
>
> cc [email protected]
>
> Subject Re: [OpenLayers-Users] boundaries of lineString
>
>
>
>
>
>
> It should be quite easy because geometry like lineString and Polygon
> are composite geometries.
> For example, a OpenLayers.LineString has a 'components' property which
> is an array of OpenLayers.Points.
> That way, you can get all the vertices using a loop like following :
>
> for(var i=0; i <= thelinestring.components.length; i++) {
> // do something with thelinestring.components[i] which is an OL
point
> }
>
> Regards,
> Pierre
>
> On Feb 11, 2008 9:02 AM, Rupesh M G <[EMAIL PROTECTED]> wrote:
> >
> > Hi,
> >
> > I'm working on an application about roads. There I need to
mark a
> > part of the road, and execute some query.
> >
> > My user will click a set of points to form a sequence of lines
passing
> > through the center of the road, because there can be bends in the
road.
> >
> > I plan to draw a lineString going through these points. Using a
bigger
> > strokeWidth, I can show it like a road (or like a filled polygon).
> >
> > Is there any way to get the vertices of that polygon?
> >
> >
> > Thanks & Regards,
> > Rupesh
> >
> >
> >
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