adding an aligned distorted hotspot by getting 4 corners coordinates of a rectangle from the user

Hi guys,

in Panotour Pro, if we wanted to add a video/image/iframe hotspot, there was an option which allowed the user to draw a rectangle like this:

and when the user builds the tour, the PTP calculate the ath, atv, width, height, rx, ry and rz automatically and creates a hotspot like this:

<hotspot name="spotwebcontent12"
	   devices="html5"
	   renderer="css3d"
	   tag="webcontent"
	   visible="false"
	   distorted="true"
	   url="%FIRSTXML%/graphics/spotsback.png"
	   ath="86.835291"
	   atv="4.544734"
	   width="490"
	   height="274"
	   rx="3.8777501015219804"
	   ry="1.6241318375190006"
	   rz="0.22828592005649509"
	   enabled="true"
	   capture="false"
	   handcursor="false"
	   zorder="2"
	   zorder_backup="2"
	   onloaded="add_iframe(https://www.youtube.com/, get(width), get(height));"
	   />

is there any way that we can get 4 corners coordinates of a rectangle from the user and calculate the hotspot parameters by ourselves? to have a result like this:

Thanks,
Hamid

I tried to use Chat-GPT to create a function for it but its suggestions were not accurate enough! and the drawn rectangle didn't fit the expected area accurately.

Klaus, can you please help me with it? It can be a very useful feature for all of us!

thanks Klaus, it's very good news!
but can you give us some leads? can we do the calculations with Javascript or even Python? or it's something more complicated!
to be honest, I need it for my current project!

thanks lastromantik for the reply!
I am familiar with this plugin but I need something more accurate and easier to use for the users.

Quote from Tuur

More accurate?
Did you see the decimals_for_dhe setting?
i agree on the too complex for 'user' yes..

yes, I saw it! but as you said, it's complex and time-consuming for the user especially if he wants to add lots of hotspots in a project like an artwork exhibition!

Quote from Tuur

aybe poly getcenter is your friend(?)
krpano.com - Documentation - XML Reference

thanks, it's a useful action.
but calculating the rotations (rx, rz, ry) is too complicated for me!