t2-mapper/docs/assets/Html-B0dPxgI2.js

import{r as e}from"./chunk-DECur_0Z.js";import{r as t}from"./jsx-runtime-BpGWiA-R.js";import{i as n,o as r}from"./react-three-fiber.esm-BccVk4IG.js";import{Ht as i,Vt as a,mt as o,pt as s}from"./three.module-BRbuBcDx.js";import{t as c}from"./extends-Cu_B6L18.js";import{V as l}from"./index-KOH_0HDb.js";var u=e(t()),d=e(l()),f=new i,p=new i,m=new i,h=new a;function ee(e,t,n){let r=f.setFromMatrixPosition(e.matrixWorld);r.project(t);let i=n.width/2,a=n.height/2;return[r.x*i+i,-(r.y*a)+a]}function te(e,t){let n=f.setFromMatrixPosition(e.matrixWorld),r=p.setFromMatrixPosition(t.matrixWorld),i=n.sub(r),a=t.getWorldDirection(m);return i.angleTo(a)>Math.PI/2}function g(e,t,n,r){let i=f.setFromMatrixPosition(e.matrixWorld),a=i.clone();a.project(t),h.set(a.x,a.y),n.setFromCamera(h,t);let o=n.intersectObjects(r,!0);if(o.length){let e=o[0].distance;return i.distanceTo(n.ray.origin)<e}return!0}function _(e,t){if(t instanceof s)return t.zoom;if(t instanceof o){let 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e=V.current=d.createRoot(B);if(F.updateMatrixWorld(),b)B.style.cssText=`position:absolute;top:0;left:0;pointer-events:none;overflow:hidden;`;else{let e=D(H.current,P,I);B.style.cssText=`position:absolute;top:0;left:0;transform:translate3d(${e[0]}px,${e[1]}px,0);transform-origin:0 0;`}return q&&(s?q.prepend(B):q.appendChild(B)),()=>{q&&q.removeChild(B),e.unmount()}}},[q,b]),u.useLayoutEffect(()=>{k&&(B.className=k)},[k]);let Z=u.useMemo(()=>b?{position:`absolute`,top:0,left:0,width:I.width,height:I.height,transformStyle:`preserve-3d`,pointerEvents:`none`}:{position:`absolute`,transform:l?`translate3d(-50%,-50%,0)`:`none`,...f&&{top:-I.height/2,left:-I.width/2,width:I.width,height:I.height},...a},[a,l,f,I,b]),oe=u.useMemo(()=>({position:`absolute`,pointerEvents:A}),[A]);u.useLayoutEffect(()=>{if(Y.current=!1,b){var 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i=Math.floor(E[0]/2),a=C?X?[E[0],i]:[i-1,0]:E;if(B.style.zIndex=`${v(H.current,P,a)}`,b){let[e,t]=[I.width/2,I.height/2],n=P.projectionMatrix.elements[5]*t,{isOrthographicCamera:r,top:i,left:a,bottom:o,right:s}=P,c=x(P.matrixWorldInverse),l=r?`scale(${n})translate(${y(-(s+a)/2)}px,${y((i+o)/2)}px)`:`translateZ(${n}px)`,u=H.current.matrixWorld;h&&(u=P.matrixWorldInverse.clone().transpose().copyPosition(u).scale(H.current.scale),u.elements[3]=u.elements[7]=u.elements[11]=0,u.elements[15]=1),B.style.width=I.width+`px`,B.style.height=I.height+`px`,B.style.perspective=r?``:`${n}px`,G.current&&K.current&&(G.current.style.transform=`${l}${c}translate(${e}px,${t}px)`,K.current.style.transform=S(u,1/((m||10)/400)))}else{let t=m===void 0?1:_(H.current,P)*m;B.style.transform=`translate3d(${e[0]}px,${e[1]}px,0) scale(${t})`}W.current=e,U.current=P.zoom}}if(!X&&J.current&&!Y.current)if(b){if(G.current){let e=G.current.children[0];if(e!=null&&e.clientWidth&&e!=null&&e.clientHeight){let{isOrthographicCamera:t}=P;if(t||T)j.scale&&(Array.isArray(j.scale)?j.scale instanceof i?J.current.scale.copy(j.scale.clone().divideScalar(1)):J.current.scale.set(1/j.scale[0],1/j.scale[1],1/j.scale[2]):J.current.scale.setScalar(1/j.scale));else{let t=(m||10)/400,n=e.clientWidth*t,r=e.clientHeight*t;J.current.scale.set(n,r,1)}Y.current=!0}}}else{let t=B.children[0];if(t!=null&&t.clientWidth&&t!=null&&t.clientHeight){let e=1/z.factor,n=t.clientWidth*e,r=t.clientHeight*e;J.current.scale.set(n,r,1),Y.current=!0}J.current.lookAt(e.camera.position)}});let $=u.useMemo(()=>({vertexShader:b?void 0:`
          /*
            This shader is from the THREE's SpriteMaterial.
            We need to turn the backing plane into a Sprite
            (make it always face the camera) if "transfrom"
            is false.
          */
          #include <common>

          void main() {
            vec2 center = vec2(0., 1.);
            float rotation = 0.0;

            // This is somewhat arbitrary, but it seems to work well
            // Need to figure out how to derive this dynamically if it even matters
            float size = 0.03;

            vec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );
            vec2 scale;
            scale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );
            scale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );

            bool isPerspective = isPerspectiveMatrix( projectionMatrix );
            if ( isPerspective ) scale *= - mvPosition.z;

            vec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale * size;
            vec2 rotatedPosition;
            rotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;
            rotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;
            mvPosition.xy += rotatedPosition;

            gl_Position = projectionMatrix * mvPosition;
          }
      `,fragmentShader:`
        void main() {
          gl_FragColor = vec4(0.0, 0.0, 0.0, 0.0);
        }
      `}),[b]);return u.createElement(`group`,c({},j,{ref:H}),C&&!X&&u.createElement(`mesh`,{castShadow:re,receiveShadow:ie,ref:J},T||u.createElement(`planeGeometry`,null),ae||u.createElement(`shaderMaterial`,{side:2,vertexShader:$.vertexShader,fragmentShader:$.fragmentShader})))});export{C as t};