hey guys,
first thanks for your help. i found a solution with the jsts framework. i
will post my code if someone has got the same problem.
Here it is:
function validateDrawing()
{
//initialize openLayers parser
var openLayersParser = new jsts.io.OpenLayersParser();
//array needed to check if the feature is already overlaping one so it is
not called twice
var alreadyOverlapping = [];
//each layes
for(var i = 1; i < priorityLayerArray.length;i++)
{
var intersectableFeatures =
priorityLayerArray[i].features;
//each features
for (var j = 0; j <
intersectableFeatures.length; j++)
{
//current feature to comapre
var currentfeature =
intersectableFeatures[j];
//parse it so the jsts framework is
able to use it
var currentGeometry =
openLayersParser.read(intersectableFeatures[j].geometry);
//Compare with others
for (var x = 0; x <
intersectableFeatures.length; x++)
{
//compared fieature
var comparefeature =
intersectableFeatures[x];
//parse it so the jsts
framework is able to use it
var compareGeometry =
openLayersParser.read(intersectableFeatures[x].geometry);
//check if not same feature
if(currentfeature.attributes.name === comparefeature.attributes.name)
{
continue;
}
else
{
//the jsts method
var isOverlaping =
currentGeometry.overlaps(compareGeometry);
if(isOverlaping
&&
alreadyOverlapping[currentfeature.attributes.name] == undefined)
{
alreadyOverlapping[comparefeature.attributes.name] = "";
alert(currentfeature.attributes.name + " intersects with: " +
comparefeature.attributes.name);
}
}
}
}
the priorityLayerArray[] is an array where i save different layers, so the
priorityLayerArray[i] is the layer i want to check if it has some features
wich intersects.
Greetings peter
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