const Drawing = require('dxf-writer');
const fs = require('fs');

let d = new Drawing();

d.setUnits('Decimeters');
d.drawText(10, 0, 10, 0, 'Hello World'); // draw text in the default layer named "0"
d.addLayer('l_green', Drawing.ACI.GREEN, 'CONTINUOUS');
d.setActiveLayer('l_green');
d.drawText(20, -70, 10, 0, 'go green!');

//or fluent
d.addLayer('l_yellow', Drawing.ACI.YELLOW, 'DOTTED')
 .setActiveLayer('l_yellow')
 .drawCircle(50, -30, 25);

fs.writeFileSync(__filename + '.dxf', d.toDxfString());

let d = new Drawing();
d.addLineType('DASHDOT', '_ . _ ', [0.5, -0.5, 0.0, -0.5]);