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timmywil avatar timmywil commented on August 16, 2024

Thanks for opening an issue. Please provide a small test case from codepen.io or jsbin.com. At first glance, make sure that this.$refs.panZoom is never undefined.

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Jeroen-Cox avatar Jeroen-Cox commented on August 16, 2024

Hi, I have added undefined/null checks everywhere with respect to this.$refs.panZoom. From what I see in your code I feel the problem is in the getDimensions(elem) function. The constrainXY, constrainScale and zoomToPoint functions never pass the elem parameter to the getDimensions function.

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timmywil avatar timmywil commented on August 16, 2024

I think you mean that the constrain functions and zoomToPoint don't get passed elem (because they all do pass elem to getDimensions, but the former is unnecessary because elem is in scope. Just note that whatever you pass to Panzoom() will always and forever set what elem is. So, if this.$refs.panZoom is undefined in Panzoom(this.$refs.panZoom), there's no changing that later. The answer is to wait to instantiate Panzoom until this.$refs.panZoom is defined.

Hope that helps. If not, please make a small example.

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