// SPDX-License-Identifier: MIT
// Copyright (c) 2026 Incoprea
// Fill a panel and calculate image crop
// Not compiled or tested in-world
// Setup: Place in a spare owned prim. Set image width/height and panel width/height. Touch for owner-only output.
// Stop / restore: Remove/disable. The script calculates only; no scene properties change.
// Notes: The crop assumes centered image alignment. Applying UV values depends on the actual face mapping and texture conventions.
// License: see LICENSE in this distribution.
// Original Incoprea. MIT. Planning only.
float IW=1920.0;
float IH=1080.0;
float PW=3.0;
float PH=4.0;
default
{
    touch_start(integer detectedCount)
    {
        if(llDetectedKey(0)!=llGetOwner())return;
        if(IW<=0.0||IH<=0.0||PW<=0.0||PH<=0.0)
        {
            llOwnerSay("Positive dimensions required.");
            return;
        }
        float scale=PW/IW;
        if(PH/IH>scale)scale=PH/IH;
        float u=PW/(IW*scale);
        float v=PH/(IH*scale);
        llOwnerSay("Visible UV span="+(string)<u,v,0.0>+"; minimum UV="+(string)<(1.0-u)*0.5,(1.0-v)*0.5,0.0>);
    }
}