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\n ${inputsRadio}\n ${body}\n ${inputsSlider}\n

\n`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2272,"value":"inputsRadio = html`\n

\n ${baseImageRadio}\n

\n`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2165,"value":"inputsSlider = html`\n

\n ${numComponentsSlider}\n

\n`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2172,"value":"body = html`\n

\n ${origCanvas}\n ${origCaption}\n

\n ${arrow}\n

\n ${updCanvas}\n ${updCaption}\n

\n`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2311,"value":"origCaption = html`\n

\n Original Image\n ${tex`x`}\n

\n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2314,"value":"updCaption = html`\n

\n Transformed Image\n ${tex`x'`}\n

\n`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2246,"value":"updateArrowCaption = {\n const text = (numComponents == maxComponents ? `All ${maxComponents}` : `First ${numComponents}`);\n d3.select(arrow).select('#caption').text(`Keep ${text} Spectral Components`);\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2182,"value":"arrow = html`\n`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2178,"value":"drawArrow = {\n const group = d3.select(arrow).select('g');\n group\n .append('defs')\n .append('marker')\n .attr('id', 'arrow')\n .attr('viewBox', [0, 0, 20, 20])\n .attr('refX', 10)\n .attr('refY', 10)\n .attr('markerWidth', 10)\n .attr('markerHeight', 10)\n .attr('orient', 'auto-start-reverse')\n .append('path')\n .attr('d', d3.line()([[0, 0], [0, 20], [20, 10]]))\n .attr('stroke', 'black');\n\n const xOffset = 10;\n const arrowLen = 300;\n group\n .append('path')\n .attr('d', d3.line()([[xOffset, 25], [xOffset + arrowLen, 25]]))\n .attr('stroke', 'black')\n .attr('marker-end', 'url(#arrow)')\n .attr('fill', 'none');\n \n group\n .select('#caption')\n .text(`Keep Top Spectral Components`)\n .attr('text-anchor', 'middle')\n .attr('dominant-baseline', 'central')\n .attr('x', xOffset + (arrowLen / 2))\n .attr('y', 40);\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2121,"value":"baseImageRadio = radio({\n title: 'Sample Image',\n options: [\n { label: 'Chicken', value: 'chicken' },\n { label: 'Fish', value: 'fish' },\n { label: 'Frog', value: 'frog' },\n { label: 'Spider', value: 'spider' },\n ],\n value: 'chicken'\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2117,"value":"baseImage = Generators.input(baseImageRadio);","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2119,"value":"numComponentsSlider = {\n var allowedVals = [1, 5, 10, 20, 50, 100, 200, 500, 750, 1000, 1500, 2000];\n return slider({\n min: 0,\n max: allowedVals.length - 1,\n step: 1,\n title: \"Number of Spectral Components (m)\",\n value: 6,\n getValue: n => allowedVals[n.value],\n });\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2144,"value":"numComponents = Generators.input(numComponentsSlider);","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2068,"value":"$30","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2067,"value":"allImages = {\n var images = await Promise.all(allAttachments.map(file => file.image()));\n var dict = {};\n for(const [i, f] of allAttachments.entries()){\n dict[f.name] = images[i];\n }\n return dict;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1740,"value":"function getImageByName(imglabel, numcomponents){\n return allImages[`spectral-${imglabel}-${numcomponents}.png`];\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1729,"value":"function drawImage(baseImage) {\n const image = getImageByName(baseImage, `${maxComponents}`);\n const ctx = origCanvas.getContext('2d');\n ctx.drawImage(image, 0, 0);\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2085,"value":"drawCurrBaseImg = drawImage(baseImage)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1783,"value":"function drawUpdImage(baseImage, numComponents) {\n const image = getImageByName(baseImage, numComponents);\n const ctx = updCanvas.getContext('2d');\n ctx.drawImage(image, 0, 0);\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2096,"value":"drawCurrUpdImg =drawUpdImage(baseImage, numComponents)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1730,"value":"imageExample = getImageByName('chicken', 100);","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1769,"value":"canvasWidth = imageExample.width;","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1770,"value":"canvasHeight = imageExample.height;","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1717,"value":"origCanvas = html`

`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1795,"value":"updCanvas = html`

`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2329,"value":"maxComponents = 2000","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":2266,"value":"style = html`\n