normalizes a set of positive coordinates to 0..1

normalizeCoordinates.js

function normaliseCoordinates(asObjects) {
	var dimensions = {
		x: [Infinity, -Infinity],
		y: [Infinity, -Infinity],
	}

	var axisToDeltas = {
		x: "width",
		y: "height",
	};

	asObjects.forEach(function(row) {
		["x","y"].forEach(function(d) {
			var minMax = dimensions[d];

			minMax[0] =		
				Math.min(minMax[0], row[d]);

			minMax[1] =		
				Math.max(minMax[1], row[d]);
		});
	});

	var transformed = [];
	asObjects.forEach(function(row) {
		var obj = {};

		["x","y"].forEach(function(d) {
			var minMax = dimensions[d];
			obj[d] = row[d] - minMax[0];
			obj[d] /= minMax[1];
		});

		transformed.push(obj);
	});
	
	return transformed;
}