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Image processing

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Use pcb-stackup to generate svg data from gerber files and then use sharp to generate a png file from the svg buffer
This commit is contained in:
Nick Playfair 2021-01-26 23:39:35 +00:00
parent bec6b26269
commit c88a879121
3 changed files with 520 additions and 9 deletions
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33
index.js
View File

@ -1,5 +1,12 @@
const fs = require('fs');
const pcbStackup = require('pcb-stackup');
const fs = require('fs');
const pcbStackup = require('pcb-stackup');
const sharp = require('sharp');
// Configuration
const resizeWidth = 600;
const density = 1000;
const compLevel = 1;
const destfile = './gerber/pcb3.png';
async function writeSVG(filepath, data) {
try {
@ -10,15 +17,11 @@ async function writeSVG(filepath, data) {
}
const fileNames = [
'./gerber/default/copper_bottom.gbr',
'./gerber/default/copper_top.gbr',
'./gerber/default/drill_1_16.xln',
'./gerber/default/silkscreen_bottom.gbr',
'./gerber/default/silkscreen_top.gbr',
'./gerber/default/soldermask_bottom.gbr',
'./gerber/default/soldermask_top.gbr',
'./gerber/default/solderpaste_top.gbr',
'./gerber/default/solderpaste_bottom.gbr',
'./gerber/default/profile.gbr',
]
@ -28,5 +31,19 @@ const layers = fileNames.map(filename => ({
}));
pcbStackup(layers).then(stackup => {
writeSVG('./gerber/pcb.svg', stackup.top.svg);
});
// Create buffer from SVG string
sharp(Buffer.from(stackup.top.svg), { density: density })
.resize({ width: resizeWidth })
.png({
compressionLevel: compLevel })
.toFile(destfile)
.then((info) => {
console.log(info)
})
.catch((e) => {
console.error(e);
})
})
.catch((e) => {
console.error(e);
});

493
package-lock.json generated
View File

@ -14,6 +14,117 @@
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@ -28,11 +139,77 @@
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@ -75,16 +252,49 @@
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}

3
package.json
View File

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