jeolimage.js

const path = require('path');

const sharp = require('sharp');

const constants = require('./constants.json');
const io = require('./io.js');
const Thermo = require('./thermo.js');

module.exports = class extends Thermo {
	constructor(entryFile, Canvas) {
		super(entryFile,
			entryFile.name.substring(0, entryFile.name.length - constants.jeol.fileFormats.ENTRY.length),
			Canvas
		);

		this.data.outputFormat = constants.jeol.fileFormats.OUTPUTIMAGE;
	}

	staticInit() {
		const entryData = io.readJeolEntry(this.data.files.entry);
		for (let IMAGE of constants.jeol.fileFormats.IMAGES) {
			let testBase;
			try {
				testBase = path.join(this.data.uri, this.data.name + IMAGE);
				io.checkJeolExists(testBase);

				this.data.files.base = testBase;
				break;
			} catch (err) {
			}
		}

		if (this.data.files.base === '') {
			throw 'Not an operable JEOL file';
		}

		this.data.files.layers = [{
			element: 'base',
			file: this.data.files.base,
			cutoffHeight: parseInt(entryData['cm_full_size'][1])
		}, {
			element: 'solid',
			file: ''
		}];

		this.data.points = {};
		this.data.files.points = [];
		this.data.data.map = {};
		this.data.magnification = parseInt(entryData['cm_mag']);
	}
};