get ra and dec of clicked body about virtualsky

[astroanu]

anybody?

[slowe]

Sorry. I've been cycling from Liverpool to Istanbul for the past two months. I'm not really sure what you mean by "clicked body"? Could you provide a little more context? Thanks.

[astroanu]

Oh.. long long journey

By 'body' i meant celestial body (a star or a planet). I want to get the ra and dec values and may be other info regarding the body when the user clicks on it.

[slowe]

Not without quite a bit of work is the simple answer. The 'stars' and 'planets' you see on the screen are drawn pixels. There isn't currently a lookup mechanism to go backwards from pixel position to object.

[astroanu]

oh i see. it's because of the canvas ? If you are planning on something like that it would be really nice/. this is a really good plugin. 🤘

[pludov]

I am in need for this feature ! Are you actively working on it ?

For now, I worded out finding the ra,dec coordinates from mouse/touch coordinates for all projections. I'll open a PR once it's cleaned up

[slowe]

There is now a click callback which can be used e.g.

'callback': {
	'click': function(e){
		// The event includes e.x, e.y, e.ra, e.dec.
		// Get the nearest object based on the x/y cursor position
		e.nearest = e.data.sky.nearestObject(e.x,e.y);
		console.log(e.nearest);
	}
}

[pludov]

Long press is probably broken :
a43ab23#r34608949