eai04191 · October 4, 2024 06:03
diff --git a/deviceorientation.html b/deviceorientation.html
 <!DOCTYPE html>
 <html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>deviceorientation sample</title>
    </head>
    <body>
        <div id="output">waiting...</div>
        <button id="requestPermission">Request Permission</button>

        <script>
            document
                .querySelector("#requestPermission")
                .addEventListener("click", () => {
                    DeviceOrientationEvent.requestPermission();
                });
        </script>
        <script>
            window.addEventListener("deviceorientation", function (event) {
                let alpha = event.alpha; // 北から時計回りの角度（0 - 360度）
                let beta = event.beta; // 前後の傾き（-180 - 180度）
                let gamma = event.gamma; // 左右の傾き（-90 - 90度）

                if (alpha !== null) {
                    // alphaを利用して向いている方角を計算
                    let direction;
                    if (alpha >= 45 && alpha < 135) {
                        direction = "東";
                    } else if (alpha >= 135 && alpha < 225) {
                        direction = "南";
                    } else if (alpha >= 225 && alpha < 315) {
                        direction = "西";
                    } else {
                        direction = "北";
                    }

                    const alphaDisplay = alpha.toFixed(2);
                    const betaDisplay = beta.toFixed(2);
                    const gammaDisplay = gamma.toFixed(2);
                    const result =
                        `現在の向き: ${direction}<br />` +
                        `\nalpha: ${alphaDisplay}<br />` +
                        `\nbeta: ${betaDisplay}<br />` +
                        `\ngamma: ${gammaDisplay}`;
                    document.getElementById("output").innerHTML = result;
                }
            });
        </script>
    </body>
 </html>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8" />
	<meta name="viewport" content="width=device-width, initial-scale=1.0" />
	<title>deviceorientation sample</title>
	</head>
	<body>
	<div id="output">waiting...</div>
	<button id="requestPermission">Request Permission</button>

	<script>
	document
	.querySelector("#requestPermission")
	.addEventListener("click", () => {
	DeviceOrientationEvent.requestPermission();
	});
	</script>
	<script>
	window.addEventListener("deviceorientation", function (event) {
	let alpha = event.alpha; // 北から時計回りの角度（0 - 360度）
	let beta = event.beta; // 前後の傾き（-180 - 180度）
	let gamma = event.gamma; // 左右の傾き（-90 - 90度）

	if (alpha !== null) {
	// alphaを利用して向いている方角を計算
	let direction;
	if (alpha >= 45 && alpha < 135) {
	direction = "東";
	} else if (alpha >= 135 && alpha < 225) {
	direction = "南";
	} else if (alpha >= 225 && alpha < 315) {
	direction = "西";
	} else {
	direction = "北";
	}

	const alphaDisplay = alpha.toFixed(2);
	const betaDisplay = beta.toFixed(2);
	const gammaDisplay = gamma.toFixed(2);
	const result =
	`現在の向き: ${direction}<br />` +
	`\nalpha: ${alphaDisplay}<br />` +
	`\nbeta: ${betaDisplay}<br />` +
	`\ngamma: ${gammaDisplay}`;
	document.getElementById("output").innerHTML = result;
	}
	});
	</script>
	</body>
	</html>