DrawingCell.prototype.tensor = function()

in web/src/drawing.js [56:78]

• 21 lines of code
• 3 McCabe index (conditional complexity)

    DrawingCell.prototype.tensor = function(size) {
        var canvas = document.createElement('canvas');
        canvas.width = size;
        canvas.height = size;

        var ctx = canvas.getContext('2d');
        ctx.strokeStyle = 'black';
        ctx.lineWidth = LINE_WIDTH * size;
        ctx.lineCap = 'square';
        ctx.lineJoin = 'square';
        drawPaths(ctx, size, this._centeredPaths());

        var data = ctx.getImageData(0, 0, size, size).data;
        var grayscale = [];
        for (var i = 3; i < data.length; i += 4) {
            if (data[i] > 128) {
                grayscale.push(0);
            } else {
                grayscale.push(1);
            }
        }
        return new jsnet.Tensor([size, size, 1], grayscale);
    };