Tips for directing specific mouse interactions to the underlying elements within an SVG

I'm working with a scatterplot that includes a brush layer for zooming in on the data and voronois for mouse hover snapping. However, I've encountered an issue where the click event doesn't fall through to the brush layer when the voronoi paths are present, or if the brush is kept on top, the hover event doesn't reach the voronoi layer.

The brush layer requires a click event

The voronoi layer requires a hover event

How can I set up this configuration using CSS only solutions?

To keep the brush layer on top :

https://i.sstatic.net/cwlQN.png

To keep the voronoi layer on top:

https://i.sstatic.net/Nc4SF.png

javascriptjquerycssd3.jssvg

Answer №1

While experimenting with voronoi hover and keeping the brush at the bottom, I noticed it was flickering around the edges.

$("#visualization-main-container > svg > g.voronoiWrapper > path.voronoi-poly").css("pointer-events", "all");

setTimeout(function() {
    $("#visualization-main-container > svg > g.voronoiWrapper > path.voronoi-poly.voronoi-movie-id-" + d.id).css("pointer-events", "none");
}, 10);

UPDATE :

To address this issue, I implemented a solution where pressing the "CTRL" key temporarily disables mouse events on the voronoi layer. This adds an extra step to the zoom process but ensures a smoother experience.

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