ol.layer.vector.setSource() TypeError: Cannot read property '0' of null











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I got this error when I called ol.vector.setSource() function with the parameter array contains multiple features. The following is my code:



const holeLayer = new ol.layer.Vector({
source: new ol.source.Vector({
features:
}),
});
const featuresArr = ;
holes.forEach((hole, index) => {
featuresArr.push(new ol.Feature({
geometry: new ol.geom.Circle(hole[0], this.holeRadius / 2, 'XYZ'),
index,
holeNum: index,
selected: index == this.selectedHole,
}));
});
holeLayer.setSource(new ol.source.Vector({
features: featuresArr
}));


I logged out the featuresArr, it is not null.
Anyone has any ideas? Thank you!










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  • 1




    Most likely an error or omission in the hole data you are using. Log hole[0] in the loop to check each contains a coordinate array.
    – Mike
    Nov 11 at 11:03

















up vote
-1
down vote

favorite












I got this error when I called ol.vector.setSource() function with the parameter array contains multiple features. The following is my code:



const holeLayer = new ol.layer.Vector({
source: new ol.source.Vector({
features:
}),
});
const featuresArr = ;
holes.forEach((hole, index) => {
featuresArr.push(new ol.Feature({
geometry: new ol.geom.Circle(hole[0], this.holeRadius / 2, 'XYZ'),
index,
holeNum: index,
selected: index == this.selectedHole,
}));
});
holeLayer.setSource(new ol.source.Vector({
features: featuresArr
}));


I logged out the featuresArr, it is not null.
Anyone has any ideas? Thank you!










share|improve this question


















  • 1




    Most likely an error or omission in the hole data you are using. Log hole[0] in the loop to check each contains a coordinate array.
    – Mike
    Nov 11 at 11:03















up vote
-1
down vote

favorite









up vote
-1
down vote

favorite











I got this error when I called ol.vector.setSource() function with the parameter array contains multiple features. The following is my code:



const holeLayer = new ol.layer.Vector({
source: new ol.source.Vector({
features:
}),
});
const featuresArr = ;
holes.forEach((hole, index) => {
featuresArr.push(new ol.Feature({
geometry: new ol.geom.Circle(hole[0], this.holeRadius / 2, 'XYZ'),
index,
holeNum: index,
selected: index == this.selectedHole,
}));
});
holeLayer.setSource(new ol.source.Vector({
features: featuresArr
}));


I logged out the featuresArr, it is not null.
Anyone has any ideas? Thank you!










share|improve this question













I got this error when I called ol.vector.setSource() function with the parameter array contains multiple features. The following is my code:



const holeLayer = new ol.layer.Vector({
source: new ol.source.Vector({
features:
}),
});
const featuresArr = ;
holes.forEach((hole, index) => {
featuresArr.push(new ol.Feature({
geometry: new ol.geom.Circle(hole[0], this.holeRadius / 2, 'XYZ'),
index,
holeNum: index,
selected: index == this.selectedHole,
}));
});
holeLayer.setSource(new ol.source.Vector({
features: featuresArr
}));


I logged out the featuresArr, it is not null.
Anyone has any ideas? Thank you!







javascript openlayers






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asked Nov 11 at 5:37









peter

12




12








  • 1




    Most likely an error or omission in the hole data you are using. Log hole[0] in the loop to check each contains a coordinate array.
    – Mike
    Nov 11 at 11:03
















  • 1




    Most likely an error or omission in the hole data you are using. Log hole[0] in the loop to check each contains a coordinate array.
    – Mike
    Nov 11 at 11:03










1




1




Most likely an error or omission in the hole data you are using. Log hole[0] in the loop to check each contains a coordinate array.
– Mike
Nov 11 at 11:03






Most likely an error or omission in the hole data you are using. Log hole[0] in the loop to check each contains a coordinate array.
– Mike
Nov 11 at 11:03



















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