@arcgis/core/views/2d/engine/flow/utils.js

ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API

/*
All material copyright ESRI, All Rights Reserved, unless otherwise specified.
See https://js.arcgis.com/4.33/esri/copyright.txt for details.
*/
import{pt2px as e}from"../../../../core/screenUtils.js";import{identity as t,translate as n,scale as i}from"../../../../core/libs/gl-matrix-2/math/mat3.js";import{create as o}from"../../../../core/libs/gl-matrix-2/factories/mat3f32.js";function s(t){const n=a(u(t)),i=n,o=!0,s=Math.max(n/2,5),r=Math.round(e(t.maxPathLength)/s)+1,l=10,{density:c}=t;return{smoothing:e(t.smoothing),interpolate:!0,velocityScale:"flow-from"===t.flowRepresentation?1:-1,verticesPerLine:r,minSpeedThreshold:.001,segmentLength:s,maxTurnAngle:1,collisions:o,lineCollisionWidth:i,lineSpacing:l,density:c}}function a(e){return"constant"===e.kind?e.value[0]:e.values[e.values.length-1]}function r(e){const t=e.toRgba();return[t[0]/255,t[1]/255,t[2]/255,t[3]]}function l(e){return{kind:"constant",value:[.1,.1,.1,1]}}function u(t){if(!t.hasVisualVariables("size"))return{kind:"constant",value:[e(t.trailWidth)]};const n=t.getVisualVariablesForType("size")[0],i=[],o=[];let s;if(n.stops){for(const t of n.stops)i.push(t.value),o.push(e(t.size));s=n.stops.length}else i.push(n.minDataValue,n.maxDataValue),o.push(e(n.minSize),e(n.maxSize)),s=2;return{kind:"ramp",stops:i,values:o,count:s}}function c(e){if(!e.hasVisualVariables("color"))return{kind:"constant",value:r(e.color)};const t=e.getVisualVariablesForType("color")[0],n=[],i=[];for(const o of t.stops)n.push(o.value),Array.prototype.push.apply(i,r(o.color));return{kind:"ramp",stops:n,values:i,count:t.stops.length}}function p(e){if(!e.hasVisualVariables("opacity"))return{kind:"constant",value:[1]};const t=e.getVisualVariablesForType("opacity")[0],n=[],i=[];for(const o of t.stops)n.push(o.value),i.push(o.opacity);return{kind:"ramp",stops:n,values:i,count:t.stops.length}}function m(e,t,n,i){switch(t){case"int":e.setUniform1iv(n,i);break;case"float":e.setUniform1fv(n,i);break;case"vec2":e.setUniform2fv(n,i);break;case"vec3":e.setUniform3fv(n,i);break;case"vec4":e.setUniform4fv(n,i)}}function f(e,t,n,i){"constant"===i.kind?m(e,n,`u_${t}`,i.value):(m(e,"float",`u_${t}_stops`,i.stops),m(e,n,`u_${t}_values`,i.values),e.setUniform1i(`u_${t}_count`,i.count))}function h(e,t){let n=!0;return n=n&&e.collisions===t.collisions,n=n&&e.density===t.density,n=n&&e.interpolate===t.interpolate,n=n&&e.lineCollisionWidth===t.lineCollisionWidth,n=n&&e.lineSpacing===t.lineSpacing,n=n&&e.maxTurnAngle===t.maxTurnAngle,n=n&&e.minSpeedThreshold===t.minSpeedThreshold,n=n&&e.segmentLength===t.segmentLength,n=n&&e.smoothing===t.smoothing,n=n&&e.velocityScale===t.velocityScale,n=n&&e.verticesPerLine===t.verticesPerLine,n}function d(e,t){return e===t||null!=e&&null!=t&&e.equals(t)}function g(e,t){if(!h(e.simulationSettings,t.simulationSettings))return!1;if(!d(e.timeExtent,t.timeExtent))return!1;let n=!0;return n=n&&e.loadImagery===t.loadImagery,n=n&&e.createFlowMesh===t.createFlowMesh,n=n&&e.color.kind===t.color.kind,n=n&&e.opacity.kind===t.opacity.kind,n=n&&e.size.kind===t.size.kind,n}function v(e,s,a){const r=o();t(r),n(r,r,[-1,1]),i(r,r,[2/s,-2/a,1]);return{time:e,dvsMat3:r,displayViewMat3:r}}export{g as areStreamlinesCompatible,c as getColor,s as getFlowSimulationSettings,l as getForegroundColor,a as getMax,p as getOpacity,v as getSingleTileVisualState,u as getSize,m as setUniform,f as setUniforms,h as simulationSettingsEqual,d as timeExtentsEqual,r as toRgba};