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OpenLayers Interaction - events are returning wrong features
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Trying to extract the drawn features on openlayers. I have written the below code and it is working fine when we draw polygon on four objects. But, when we try to draw polygon on three objects it is returning four features instead of three, not sure why the function(evt.feature.getGeometry().getExtent()) is returning four features when polygon drawn on three objects on a map.
draw = new ol.interaction.Draw({
source: sourceMeasure,
type: /** @type {ol.geom.GeometryType} */ ('Polygon')
});
openlayerMap.addInteraction(draw);
draw.on('drawstart',
function(evt) {
// set sketch
}, this);
draw.on('drawend',
function(evt) {
var extent = evt.feature.getGeometry().getExtent();
vectorSource.forEachFeatureIntersectingExtent(extent, function(feature) {
var layer = feature.get('LAYER');
/* here my logic is written and it working fine with four coordinates */
});
}, this);
geoserver openlayers vector-layer
edited Oct 9 '17 at 10:56
Ian Turton♦
50.4k548119
asked Oct 9 '17 at 10:37
user3474541user3474541
455
bumped to the homepage by Community♦ 15 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
|
show 3 more comments
Trying to extract the drawn features on openlayers. I have written the below code and it is working fine when we draw polygon on four objects. But, when we try to draw polygon on three objects it is returning four features instead of three, not sure why the function(evt.feature.getGeometry().getExtent()) is returning four features when polygon drawn on three objects on a map.
draw = new ol.interaction.Draw({
source: sourceMeasure,
type: /** @type {ol.geom.GeometryType} */ ('Polygon')
});
openlayerMap.addInteraction(draw);
draw.on('drawstart',
function(evt) {
// set sketch
}, this);
draw.on('drawend',
function(evt) {
var extent = evt.feature.getGeometry().getExtent();
vectorSource.forEachFeatureIntersectingExtent(extent, function(feature) {
var layer = feature.get('LAYER');
/* here my logic is written and it working fine with four coordinates */
});
}, this);
geoserver openlayers vector-layer
edited Oct 9 '17 at 10:56
Ian Turton♦
50.4k548119
asked Oct 9 '17 at 10:37
user3474541user3474541
455
bumped to the homepage by Community♦ 15 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
seems like working fine codepen.io/anon/pen/JrvWbW
– Chase Choi
Oct 10 '17 at 5:10
No. It's not working. It is working only with a square box selection but for polygon it's not working. Is there any workaround?
– user3474541
Oct 11 '17 at 16:32
or could you make a fiddle to show the wrong behavior?
– Chase Choi
Oct 12 '17 at 0:28
Chase Choi, I used the same fiddle the one you provided. I have drawn four small squares on the map in two columns, and drawn the polygon intersecting only 3 squares. But it is returning four features instead of three.
– user3474541
Oct 12 '17 at 6:29
the coordinate of extent is always rectangle that's why you get wrong number of features. though you draw polygon, its extent is the maximum boundary rectangle. as you see openlayers.org/en/latest/apidoc/ol.html#.Extent
– Chase Choi
Oct 12 '17 at 6:54
|
show 3 more comments
Trying to extract the drawn features on openlayers. I have written the below code and it is working fine when we draw polygon on four objects. But, when we try to draw polygon on three objects it is returning four features instead of three, not sure why the function(evt.feature.getGeometry().getExtent()) is returning four features when polygon drawn on three objects on a map.
draw = new ol.interaction.Draw({
source: sourceMeasure,
type: /** @type {ol.geom.GeometryType} */ ('Polygon')
});
openlayerMap.addInteraction(draw);
draw.on('drawstart',
function(evt) {
// set sketch
}, this);
draw.on('drawend',
function(evt) {
var extent = evt.feature.getGeometry().getExtent();
vectorSource.forEachFeatureIntersectingExtent(extent, function(feature) {
var layer = feature.get('LAYER');
/* here my logic is written and it working fine with four coordinates */
});
}, this);
geoserver openlayers vector-layer
edited Oct 9 '17 at 10:56
Ian Turton♦
50.4k548119
asked Oct 9 '17 at 10:37
user3474541user3474541
455
Trying to extract the drawn features on openlayers. I have written the below code and it is working fine when we draw polygon on four objects. But, when we try to draw polygon on three objects it is returning four features instead of three, not sure why the function(evt.feature.getGeometry().getExtent()) is returning four features when polygon drawn on three objects on a map.
draw = new ol.interaction.Draw({
source: sourceMeasure,
type: /** @type {ol.geom.GeometryType} */ ('Polygon')
});
openlayerMap.addInteraction(draw);
draw.on('drawstart',
function(evt) {
// set sketch
}, this);
draw.on('drawend',
function(evt) {
var extent = evt.feature.getGeometry().getExtent();
vectorSource.forEachFeatureIntersectingExtent(extent, function(feature) {
var layer = feature.get('LAYER');
/* here my logic is written and it working fine with four coordinates */
});
}, this);
geoserver openlayers vector-layer
geoserver openlayers vector-layer
edited Oct 9 '17 at 10:56
Ian Turton♦
50.4k548119
asked Oct 9 '17 at 10:37
user3474541user3474541
455
edited Oct 9 '17 at 10:56
Ian Turton♦
50.4k548119
asked Oct 9 '17 at 10:37
user3474541user3474541
455
edited Oct 9 '17 at 10:56
Ian Turton♦
50.4k548119
edited Oct 9 '17 at 10:56
Ian Turton♦
50.4k548119
edited Oct 9 '17 at 10:56
Ian Turton♦
50.4k548119
50.4k548119
asked Oct 9 '17 at 10:37
user3474541user3474541
455
asked Oct 9 '17 at 10:37
user3474541user3474541
455
asked Oct 9 '17 at 10:37
user3474541user3474541
455
455
bumped to the homepage by Community♦ 15 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 15 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
seems like working fine codepen.io/anon/pen/JrvWbW
– Chase Choi
Oct 10 '17 at 5:10
No. It's not working. It is working only with a square box selection but for polygon it's not working. Is there any workaround?
– user3474541
Oct 11 '17 at 16:32
or could you make a fiddle to show the wrong behavior?
– Chase Choi
Oct 12 '17 at 0:28
Chase Choi, I used the same fiddle the one you provided. I have drawn four small squares on the map in two columns, and drawn the polygon intersecting only 3 squares. But it is returning four features instead of three.
– user3474541
Oct 12 '17 at 6:29
the coordinate of extent is always rectangle that's why you get wrong number of features. though you draw polygon, its extent is the maximum boundary rectangle. as you see openlayers.org/en/latest/apidoc/ol.html#.Extent
– Chase Choi
Oct 12 '17 at 6:54
|
show 3 more comments
seems like working fine codepen.io/anon/pen/JrvWbW
– Chase Choi
Oct 10 '17 at 5:10
No. It's not working. It is working only with a square box selection but for polygon it's not working. Is there any workaround?
– user3474541
Oct 11 '17 at 16:32
or could you make a fiddle to show the wrong behavior?
– Chase Choi
Oct 12 '17 at 0:28
Chase Choi, I used the same fiddle the one you provided. I have drawn four small squares on the map in two columns, and drawn the polygon intersecting only 3 squares. But it is returning four features instead of three.
– user3474541
Oct 12 '17 at 6:29
the coordinate of extent is always rectangle that's why you get wrong number of features. though you draw polygon, its extent is the maximum boundary rectangle. as you see openlayers.org/en/latest/apidoc/ol.html#.Extent
– Chase Choi
Oct 12 '17 at 6:54
seems like working fine codepen.io/anon/pen/JrvWbW
– Chase Choi
Oct 10 '17 at 5:10
seems like working fine codepen.io/anon/pen/JrvWbW
– Chase Choi
Oct 10 '17 at 5:10
No. It's not working. It is working only with a square box selection but for polygon it's not working. Is there any workaround?
– user3474541
Oct 11 '17 at 16:32
No. It's not working. It is working only with a square box selection but for polygon it's not working. Is there any workaround?
– user3474541
Oct 11 '17 at 16:32
or could you make a fiddle to show the wrong behavior?
– Chase Choi
Oct 12 '17 at 0:28
or could you make a fiddle to show the wrong behavior?
– Chase Choi
Oct 12 '17 at 0:28
Chase Choi, I used the same fiddle the one you provided. I have drawn four small squares on the map in two columns, and drawn the polygon intersecting only 3 squares. But it is returning four features instead of three.
– user3474541
Oct 12 '17 at 6:29
Chase Choi, I used the same fiddle the one you provided. I have drawn four small squares on the map in two columns, and drawn the polygon intersecting only 3 squares. But it is returning four features instead of three.
– user3474541
Oct 12 '17 at 6:29
the coordinate of extent is always rectangle that's why you get wrong number of features. though you draw polygon, its extent is the maximum boundary rectangle. as you see openlayers.org/en/latest/apidoc/ol.html#.Extent
– Chase Choi
Oct 12 '17 at 6:54
the coordinate of extent is always rectangle that's why you get wrong number of features. though you draw polygon, its extent is the maximum boundary rectangle. as you see openlayers.org/en/latest/apidoc/ol.html#.Extent
– Chase Choi
Oct 12 '17 at 6:54
|
show 3 more comments
1 Answer
1
active
oldest
votes
You can use a third party library like JSTS to solve your issue.
You can find out how to select exactly by polygon instead of extend by looking at this sample
answered Oct 31 '17 at 1:32
ThomasG77ThomasG77
10.8k2347
add a comment |
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1 Answer
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You can use a third party library like JSTS to solve your issue.
You can find out how to select exactly by polygon instead of extend by looking at this sample
answered Oct 31 '17 at 1:32
ThomasG77ThomasG77
10.8k2347
add a comment |
You can use a third party library like JSTS to solve your issue.
You can find out how to select exactly by polygon instead of extend by looking at this sample
answered Oct 31 '17 at 1:32
ThomasG77ThomasG77
10.8k2347
add a comment |
You can use a third party library like JSTS to solve your issue.
You can find out how to select exactly by polygon instead of extend by looking at this sample
answered Oct 31 '17 at 1:32
ThomasG77ThomasG77
10.8k2347
You can use a third party library like JSTS to solve your issue.
You can find out how to select exactly by polygon instead of extend by looking at this sample
answered Oct 31 '17 at 1:32
ThomasG77ThomasG77
10.8k2347
answered Oct 31 '17 at 1:32
ThomasG77ThomasG77
10.8k2347
answered Oct 31 '17 at 1:32
ThomasG77ThomasG77
10.8k2347
answered Oct 31 '17 at 1:32
ThomasG77ThomasG77
10.8k2347
10.8k2347
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seems like working fine codepen.io/anon/pen/JrvWbW
– Chase Choi
Oct 10 '17 at 5:10
No. It's not working. It is working only with a square box selection but for polygon it's not working. Is there any workaround?
– user3474541
Oct 11 '17 at 16:32
or could you make a fiddle to show the wrong behavior?
– Chase Choi
Oct 12 '17 at 0:28
Chase Choi, I used the same fiddle the one you provided. I have drawn four small squares on the map in two columns, and drawn the polygon intersecting only 3 squares. But it is returning four features instead of three.
– user3474541
Oct 12 '17 at 6:29
the coordinate of extent is always rectangle that's why you get wrong number of features. though you draw polygon, its extent is the maximum boundary rectangle. as you see openlayers.org/en/latest/apidoc/ol.html#.Extent
– Chase Choi
Oct 12 '17 at 6:54