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











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












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






share|improve this question













share|improve this question











share|improve this question




share|improve this question










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



















active

oldest

votes











Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53246139%2fol-layer-vector-setsource-typeerror-cannot-read-property-0-of-null%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown






























active

oldest

votes













active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.





Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


Please pay close attention to the following guidance:


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53246139%2fol-layer-vector-setsource-typeerror-cannot-read-property-0-of-null%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

Florida Star v. B. J. F.

Danny Elfman

Lugert, Oklahoma