/**
 * Highmaps JS v12.6.0 (2026-04-13)
 * @module highcharts/modules/contour
 * @requires highcharts
 *
 * (c) 2009-2025 Highsoft AS
 *
 * License: www.highcharts.com/license
 */import*as e from"../highcharts.js";import"./coloraxis.js";var t,r={};r.n=e=>{var t=e&&e.__esModule?()=>e.default:()=>e;return r.d(t,{a:t}),t},r.d=(e,t)=>{for(var o in t)r.o(t,o)&&!r.o(e,o)&&Object.defineProperty(e,o,{enumerable:!0,get:t[o]})},r.o=(e,t)=>Object.prototype.hasOwnProperty.call(e,t);let o=e.default;var i=r.n(o);let n=e.default.Color;var s=r.n(n);let a=e.default.SeriesRegistry;var u=r.n(a);let{scatter:{prototype:{pointClass:f}}}=u().seriesTypes,l=`

struct VertexInput {
    @location(0) pos: vec3f
}

struct VertexOutput {
    @builtin(position) pos: vec4f,
    @location(0) originalPos: vec3f,
    @location(1) valExtremes: vec2f,
}

@group(0) @binding(0) var<uniform> uExtremes: vec4f;
@group(0) @binding(1) var<uniform> uValueExtremes: vec2f;
@group(0) @binding(9) var<uniform> uIsInverted: u32;

@vertex
fn vertexMain(input: VertexInput) -> VertexOutput {
    var output: VertexOutput;
    let pos = input.pos;

    let xMin = uExtremes[0];
    let xMax = uExtremes[1];
    let yMin = uExtremes[2];
    let yMax = uExtremes[3];

    var posX: f32;
    var posY: f32;
    if (uIsInverted > 0u) {
        posX = (1.0 - (pos.y - yMin) / (yMax - yMin)) * 2.0 - 1.0;
        posY = (1.0 - (pos.x - xMin) / (xMax - xMin)) * 2.0 - 1.0;
    } else {
        posX = (pos.x - xMin) / (xMax - xMin) * 2.0 - 1.0;
        posY = (pos.y - yMin) / (yMax - yMin) * 2.0 - 1.0;
    }

    output.valExtremes = uValueExtremes;
    output.originalPos = pos.xyz;
    output.pos = vec4f(posX, posY, 0, 1);

    return output;
}

// ------------------------------------------------

struct FragmentInput {
    @location(0) originalPos: vec3f,
    @location(1) valExtremes: vec2f
}

@group(0) @binding(2) var<storage> uColorStops: array<vec4<f32>>;
@group(0) @binding(3) var<uniform> uColorStopsCount: u32;
@group(0) @binding(4) var<uniform> uContourInterval: f32;
@group(0) @binding(5) var<uniform> uContourOffset: f32;
@group(0) @binding(6) var<uniform> uSmoothColoring: u32;
@group(0) @binding(7) var<uniform> uContourLineWidth: f32;
@group(0) @binding(8) var<uniform> uContourLineColor: vec3f;

fn getColor(value: f32) -> vec3<f32> {
    let stopCount = uColorStopsCount;

    if (stopCount == 0u) {
        return vec3<f32>(1.0, 1.0, 1.0);
    }

    for (var i: u32 = 0u; i < stopCount - 1u; i = i + 1u) {
        if (value < uColorStops[i + 1u].x) {
            let t = (value - uColorStops[i].x) /
                (uColorStops[i + 1u].x - uColorStops[i].x);

            return mix(uColorStops[i].yzw, uColorStops[i + 1u].yzw, t);
        }
    }

    return uColorStops[stopCount - 1u].yzw;
}

@fragment
fn fragmentMain(input: FragmentInput) -> @location(0) vec4f {
    let val = input.originalPos.z;

    // Contour lines
    let lineWidth: f32 = uContourLineWidth;

    let val_dx: f32 = dpdx(val);
    let val_dy: f32 = dpdy(val);
    let gradient: f32 = length(vec2f(val_dx, val_dy));

    let epsilon: f32 = max(uContourInterval * 1.0e-6, 1.0e-12);
    let adjustedLineWidth: f32 = lineWidth * gradient + epsilon;

    let adjustedVal: f32 = val - uContourOffset;
    let valDiv: f32 = adjustedVal / uContourInterval;
    let valMod: f32 = adjustedVal - uContourInterval * floor(valDiv);

    let lineMask: f32 = smoothstep(0.0, adjustedLineWidth, valMod) * (
        1.0 - smoothstep(
            uContourInterval - adjustedLineWidth,
            uContourInterval,
            valMod
        )
    );

    // Background color
    let minHeight: f32 = input.valExtremes.x;
    let maxHeight: f32 = input.valExtremes.y;

    var bgColor: vec3f;
    if (uSmoothColoring > 0u) {
        bgColor = getColor((val - minHeight) / (maxHeight - minHeight));
    } else {
        let adjustedVal: f32 = val - uContourOffset;
        let averageValInBand: f32 = floor(
            adjustedVal / uContourInterval
        ) * uContourInterval + uContourOffset + uContourInterval / 2.0;

        bgColor = getColor(
            (averageValInBand - minHeight) /
            (maxHeight - minHeight)
        );
    }

    // Mix
    var pixelColor = bgColor;
    if (lineWidth > 0.0) {
        pixelColor = mix(uContourLineColor, pixelColor, lineMask);
    }

    return vec4(pixelColor, 1.0);
}

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e=this.device;this.adapter||(this.adapter=await i.requestAdapter()),!e&&this.adapter&&(e=this.device=await this.adapter.requestDevice());let t=i.getPreferredCanvasFormat();if(e){n.configure({device:e,format:t,colorSpace:"display-p3",alphaMode:"premultiplied",usage:GPUTextureUsage.RENDER_ATTACHMENT|GPUTextureUsage.COPY_SRC});let[r,o]=this.getContourData(),{vertex:i,index:s,extremesUniform:a,valueExtremesUniform:u,contourIntervalUniform:f,contourOffsetUniform:h,smoothColoringUniform:c,lineWidthUniform:d,contourLineColor:m,colorAxisStopsCountUniform:p,colorAxisStopsUniform:g,isInvertedUniform:v}=this.buffers={vertex:e.createBuffer({size:o.byteLength,usage:GPUBufferUsage.VERTEX|GPUBufferUsage.COPY_DST}),index:e.createBuffer({size:r.byteLength,usage:GPUBufferUsage.INDEX|GPUBufferUsage.COPY_DST}),extremesUniform:e.createBuffer({size:4*Float32Array.BYTES_PER_ELEMENT,usage:GPUBufferUsage.UNIFORM|GPUBufferUsage.COPY_DST}),valueExtremesUniform:e.createBuffer({size:2*Float32Array.BYTES_PER_ELEMENT,usage:GPUBufferUsage.UNIFORM|GPUBufferUsage.COPY_DST}),contourIntervalUniform:e.createBuffer({size:4,usage:GPUBufferUsage.UNIFORM|GPUBufferUsage.COPY_DST}),contourOffsetUniform:e.createBuffer({size:4,usage:GPUBufferUsage.UNIFORM|GPUBufferUsage.COPY_DST}),smoothColoringUniform:e.createBuffer({size:4,usage:GPUBufferUsage.UNIFORM|GPUBufferUsage.COPY_DST}),lineWidthUniform:e.createBuffer({size:4,usage:GPUBufferUsage.UNIFORM|GPUBufferUsage.COPY_DST}),contourLineColor:e.createBuffer({size:12,usage:GPUBufferUsage.UNIFORM|GPUBufferUsage.COPY_DST}),colorAxisStopsCountUniform:e.createBuffer({size:4,usage:GPUBufferUsage.UNIFORM|GPUBufferUsage.COPY_DST}),colorAxisStopsUniform:e.createBuffer({size:64*Float32Array.BYTES_PER_ELEMENT,usage:GPUBufferUsage.STORAGE|GPUBufferUsage.COPY_DST}),isInvertedUniform:e.createBuffer({size:4,usage:GPUBufferUsage.UNIFORM|GPUBufferUsage.COPY_DST})};e.queue.writeBuffer(i,0,o),e.queue.writeBuffer(s,0,r);let U=e.createShaderModule({code:l}),x=e.createRenderPipeline({layout:"auto",vertex:{module:U,entryPoint:"vertexMain",buffers:[{arrayStride:12,attributes:[{format:"float32x3",offset:0,shaderLocation:0}]}]},fragment:{module:U,entryPoint:"fragmentMain",targets:[{format:t}]},primitive:{topology:"triangle-list"}}),C=e.createBindGroup({layout:x.getBindGroupLayout(0),entries:[{binding:0,resource:{buffer:a,label:"extremesUniformBuffer"}},{binding:1,resource:{buffer:u,label:"valueExtremesUniformBuffer"}},{binding:2,resource:{buffer:g,label:"colorAxisStopsBuffer"}},{binding:3,resource:{buffer:p,label:"colorAxisStopsCountBuffer"}},{binding:4,resource:{buffer:f,label:"contourIntervalUniformBuffer"}},{binding:5,resource:{buffer:h,label:"contourOffsetUniformBuffer"}},{binding:6,resource:{buffer:c,label:"smoothColoringUniformBuffer"}},{binding:7,resource:{buffer:d,label:"lineWidthUniformBuffer"}},{binding:8,resource:{buffer:m,label:"contourLineColorBuffer"}},{binding:9,resource:{buffer:v,label:"isInvertedUniformBuffer"}}]});this.renderFrame=function(){this.setUniforms(!1);let t=e.createCommandEncoder(),o=n.getCurrentTexture(),a=t.beginRenderPass({colorAttachments:[{view:o.createView(),loadOp:"clear",clearValue:[0,0,0,0],storeOp:"store"}]});a.setPipeline(x),a.setVertexBuffer(0,i),a.setIndexBuffer(s,"uint32"),a.setBindGroup(0,C),a.drawIndexed(r.length),a.end(),e.queue.submit([t.finish()])},this.renderFrame()}}t.asyncCounter--,t.asyncCounter||!e||e.hasLoaded||e.onload()}destroy(){this.canvas?.parentElement?.remove(),super.destroy()}drawGraph(){}setUniforms(e=!0){this.setFrameExtremesUniform(!1),this.setValueExtremesUniform(!1),this.setColorAxisStopsUniforms(!1),this.setContourIntervalUniform(!1),this.setContourOffsetUniform(!1),this.setSmoothColoringUniform(!1),this.setLineWidthUniform(!1),this.setContourLineColorUniform(!1),this.setIsInvertedUniform(e)}setContourIntervalUniform(e=!0){this.device&&this.buffers?.contourIntervalUniform&&(this.device.queue.writeBuffer(this.buffers.contourIntervalUniform,0,new Float32Array([this.getContourInterval()])),e&&this.renderFrame?.())}setContourOffsetUniform(e=!0){this.device&&this.buffers?.contourOffsetUniform&&(this.device.queue.writeBuffer(this.buffers.contourOffsetUniform,0,new Float32Array([this.getContourOffset()])),e&&this.renderFrame?.())}setSmoothColoringUniform(e=!0){this.device&&this.buffers?.smoothColoringUniform&&(this.device.queue.writeBuffer(this.buffers.smoothColoringUniform,0,new Float32Array([this.getSmoothColoring()])),e&&this.renderFrame?.())}setLineWidthUniform(e=!0){this.device&&this.buffers?.lineWidthUniform&&(this.device.queue.writeBuffer(this.buffers.lineWidthUniform,0,new Float32Array([this.getLineWidth()])),e&&this.renderFrame?.())}setContourLineColorUniform(e=!0){this.device&&this.buffers?.contourLineColor&&(this.device.queue.writeBuffer(this.buffers.contourLineColor,0,new Float32Array(this.getContourLineColor())),e&&this.renderFrame?.())}setFrameExtremesUniform(e=!0){this.device&&this.buffers?.extremesUniform&&(this.device.queue.writeBuffer(this.buffers.extremesUniform,0,new Float32Array(this.getFrameExtremes())),e&&this.renderFrame?.())}setValueExtremesUniform(e=!0){this.device&&this.buffers?.valueExtremesUniform&&(this.device.queue.writeBuffer(this.buffers.valueExtremesUniform,0,new Float32Array(this.getValueAxisExtremes())),e&&this.renderFrame?.())}setColorAxisStopsUniforms(e=!0){let t=this.buffers?.colorAxisStopsUniform,r=this.buffers?.colorAxisStopsCountUniform;if(this.device&&t&&r){let{array:o,length:i}=this.getColorAxisStopsData();this.device.queue.writeBuffer(t,0,o),this.device.queue.writeBuffer(r,0,new Uint32Array([i])),e&&this.renderFrame?.()}}setIsInvertedUniform(e=!0){this.device&&this.buffers?.isInvertedUniform&&(this.device.queue.writeBuffer(this.buffers.isInvertedUniform,0,new Uint32Array([+!!this.chart.inverted])),e&&this.renderFrame?.())}getContourInterval(){let e=this.options.contourInterval??(()=>{let[e,t]=this.getValueAxisExtremes();return function(e,t,r,o,i){var n,s;let a,u=e;r=function(){let e=arguments,t=e.length;for(let r=0;r<t;r++){let t=e[r];if(null!=t)return t}}(r,Math.pow(10,Math.floor(Math.log(e)/Math.LN10)));let f=e/r;for(t||(t=[1,2,2.5,5,10]),a=0;a<t.length&&(u=t[a],!(f<=(t[a]+(t[a+1]||t[a]))/2));a++);return n=u*r,s=-Math.round(Math.log(.001)/Math.LN10),u=n>1e14?n:parseFloat(n.toPrecision(s||14))}((t-e)/10)})();return isNaN(e)||e<=0?-1:e}getContourOffset(){let e=this.options.contourOffset??0;return isNaN(e)||e<=0?0:e}getSmoothColoring(){return+!!this.options.smoothColoring}getLineWidth(){return this.userOptions.lineWidth??1}getContourLineColor(){let{lineColor:e="#000000"}=this.options;return O.rgbaAsFrac(new(s())(e).rgba)}getFrameExtremes(){let{xAxis:e,yAxis:t}=this;return[e.toValue(0,!0),e.toValue(e.len,!0),t.toValue(t.len,!0),t.toValue(0,!0)]}getValueAxisExtremes(){let e=this.valueMin;isNaN(e||NaN)&&isNaN((e=this.colorAxis?.min)||NaN)&&(e=Math.min(...this.points.map(e=>e.value||0)));let t=this.valueMax;return isNaN(t||NaN)&&isNaN((t=this.colorAxis?.max)||NaN)&&(t=Math.max(...this.points.map(e=>e.value||0))),[e||0,t||0]}getColorAxisStopsData(){let e,t=this.colorAxis?.stops;if(t)for(let r of(e=[],t)){let t=r?.color?.rgba;t&&e.push(r[0],...O.rgbaAsFrac(t))}return{array:new Float32Array(e??[0,0,0,0,1,1,1,1]),length:t?.length||2}}static rgbaAsFrac(e){return[e[0],e[1],e[2]].map(e=>e/255)}}O.defaultOptions=v(B.defaultOptions,{colorKey:"value",clip:!1,marker:{symbol:"cross",states:{hover:{lineColor:"black"}}},states:{hover:{halo:void 0}},zIndex:0}),!function(e,t){let r;for(r in e||(e={}),t)e[r]=t[r]}(O.prototype,{pointClass:class extends f{},pointArrayMap:["y","value"],keysAffectYAxis:["y"],invertible:!1}),u().registerSeriesType("contour",O);let w=i();O.compose(w.Renderer);let M=i();export{M as default};