e("coordinates")) {
				i.style.visibility = "hidden";
			}
		});

		for (const c of cpus)
		c.addEventListener("keyup", function(e) {
			//console.log(`k = ${e.key}`);
			if (e.key == "q" || e.key == "Escape") {
				//console.log(`QHITE`);
				c.dataset.active = "false";
				document.activeElement.blur();
			}
			if (e.key == "r") {
				viewport_reset(c);
				apply_transforms(c);
			}
		});

	}
</script>


<h1>image zoom and pan</h1>

<div style="font-size:300%;margin-left:2em">
	∫<sub><sub>Ω</sub></sub