2b:null 2c:["$","title",null,{"children":"Parsing OSPRay colormap from SENSEI ConfigurableAnalysis format | Tanner Hobson | Observable"}] 31:Tb43,viewof FILE = Inputs.textarea({ label: 'Contents of XML configuration', rows: 24, cols: 80, value: ` carson 0.0, 0.0, 0.5, 0.0, 0.04063860571320177, 0.0078125, 0.5, 0.0, 0.090711172547085786, 0.0234375, 0.5, 0.0, 0.090711172547085786, 0.0234375, 0.5, 0.0, 0.11611030250787735, 0.0, 0.5, 0.0, 0.14513787924539368, 0.096354171633720398, 0.5, 0.0, 0.17053700633429392, 0.0, 0.5, 0.0, 0.19956458359956741, 0.0078125, 0.5, 0.0, 0.20537010083595914, 0.4192708432674408, 0.5, 0.0, 0.21262700359026593, 0.0, 0.5, 0.0, 0.29608127474784851, 0.0, 0.5, 0.0, 0.31712627410888672, 0.0859375, 0.5, 0.0, 0.33454281091690063, 0.0, 0.5, 0.0, 0.35849057137966156, 0.080729171633720398, 0.5, 0.0, 0.39332364996274316, 0.1692708432674408, 0.5, 0.0, 0.41219157477219903, 0.2369791716337204, 0.5, 0.0, 0.45500725507736206, 0.3515625, 0.5, 0.0, 0.5, 1.0, 0.5, 0.0 0.0, 0.0, 0.10000000000000001, 0.29999999999999999, 0.044992746230285707, 0.015686274509803921, 0.12156862745098039, 0.32156862745098042, 0.092888248893062852, 0.2196078431372549, 0.40000000000000002, 0.61176470588235299, 0.12772133946418762, 0.29999999999999999, 0.20000000000000001, 0.59999999999999998, 0.15239477157592773, 0.10000000000000001, 0.29999999999999999, 0.59999999999999998, 0.20609578490257263, 0.20000000000000001, 0.59999999999999998, 0.90000000000000002, 0.21552975475788116, 1.0, 1.0, 0.9882352941176471, 0.29027575254440308, 0.99607843137254903, 0.99607843137254903, 0.96862745098039216, 0.30188679695129395, 0.90000000000000002, 0.80000000000000004, 0.20000000000000001, 0.31204643845558167, 0.80000000000000004, 0.69999999999999996, 0.0, 0.32801160216331482, 0.90196078431399995, 0.0, 0.0, 0.5, 0.0, 0.0, 0.0 0 0.5 30 30 150 0 0 -1 0 1 0 35.0 0.0 0.0 0.1 0.3 `, })32:T4f2,colormaps = { const parser = new DOMParser(); const $document = parser.parseFromString(FILE, 'text/xml'); const $colormaps = $document.querySelectorAll('colormap'); const colormaps = []; for (const $colormap of $colormaps) { const $name = $colormap.querySelector('name'); const $points = $colormap.querySelector('points'); const $colors = $colormap.querySelector('rgb_points'); const $range = $colormap.querySelector('range'); const name = $name.textContent; const points = GROUPER(NUMBERS($points.textContent), 4).map(([x, a, ..._]) => ({ x, a })); const colors = GROUPER(NUMBERS($colors.textContent), 4).map(([x, r, g, b]) => ({ x, r, g, b })); const [lo, hi] = NUMBERS($range.textContent); const range = { lo, hi }; const colormap = { name, points, colors, range }; colormaps.push(colormap); } return colormaps; function NUMBERS(text) { const re = /[ \t\n,]+/g; text = text.replaceAll(re, ','); return text.split(',').filter((d) => d !== '').map((d) => Number.parseFloat(d)); } function GROUPER(values, k) { const groups = []; for (let i=0, n=values.length; i\n${colormaps.map(({ name, colors }) => htl.html.fragment`\n

Colormap \"${name}\"\n

\n ${colors.map(({ r, g, b }) => htl.html.fragment`\n \n `/* htl.html.fragment */)}\n`/* htl.html.fragment */)}\n`/* htl.html */;","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":12,"value":"embed({\n datasets: {\n r: colormaps[0].colors.map(({ x, r: y }, i, { length: n }) => ({ x, y })),\n g: colormaps[0].colors.map(({ x, g: y }, i, { length: n }) => ({ x, y })),\n b: colormaps[0].colors.map(({ x, b: y }, i, { length: n }) => ({ x, y })),\n a: colormaps[0].points.map(({ x, a: y }, i, { length: n }) => ({ x, y })),\n },\n layer: ['r', 'g', 'b', 'a', 'x'].map((name) => ({\n title: `Colormap \"${colormaps[0].name}\"`,\n data: {\n name,\n },\n mark: {\n type: 'line',\n stroke: { r: 'red', g: 'green', b: 'blue', a: 'black' }[name],\n point: {\n shape: 'diamond',\n },\n },\n encoding: {\n x: { field: 'x', type: 'quantitative', scale: { domainMin: 0, domainMax: 0.5 } },\n y: { field: 'y', type: 'quantitative', scale: { domainMin: 0, domainMax: 1.0 } },\n },\n })),\n})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":24,"value":"embed = require(\"vega-embed@6\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W33","stdlib":"1","titling":"auto"}} 30:"$2f:body"