プログラミングとイラストレーション » パネル Y軸回転|Panel Rotate Y-axis
プログラミングとイラストレーション > HTML5 > パネル Y軸回転|Panel Rotate Y-axis

パネル Y軸回転|Panel Rotate Y-axis

パネル Y軸回転|Panel Rotate Y-axis

パネル Y軸回転|Panel Rotate Y-axis : デモ

パネル Y軸回転|Panel Rotate Y-axis : ZIPファイル(4kb)

1.HTML

<!DOCTYPE html>
<html lang="jp">
    <head>
        <meta charset="UTF-8" />
        <title>3d Panel Y軸回転</title>
        <link href="css/base.css" rel="stylesheet" type="text/css">
        <script src="js/devicecheck.js"></script>
        <script src="js/base.js"></script>
    </head>
    <body>
        <div id="contents">
            <canvas id="canvas" width="275" height="275"></canvas>
        </div>
    </body>
</html>

2.CSS

@charset "utf-8";
  
body
{
    margin: 0;
    padding: 0;
    background-color: #fff;
}
  
#contents
{
    position: absolute;
    top: 0;
    left: 0;
    width: 275px;
    height: 275px;
    border: 1px solid #000;
    overflow:hidden;
}
  
#canvas
{
    position: absolute;
    top: 0;
    left: 0;
    width: 275px;
    height: 275px;
}

3.JavaScript

devicecheck.js

var g_mobiledevice = false;	//iPhone、iPad、Androidのときtrue
var g_browsername = 'unknown';
var g_browserver = -1;

if(checkUserAgent() == false)
{
	window.alert('このブラウザは対象外です');
}

function checkUserAgent()
{
	var ua = navigator.userAgent;

	//iPhoneか?	
	var mstr = ua.match(/iPhone OS \d+/);
	if(mstr != null){
		var vstr = mstr[0].match(/\d+/);
		if(parseInt(vstr[0]) >= 3) 
		{
			g_mobiledevice = true;
			g_browsername = 'iPhone';
			//alert('major-version ' + vstr);
			return true;
		}
	}
	//iPadか?
	if(ua.indexOf('iPad') > -1)
	{
		mstr = ua.match(/CPU OS \d+/);
		if(mstr != null)
		{
			var vstr = mstr[0].match(/\d+/);
			if(parseInt(vstr[0]) >= 3) {
				g_mobiledevice = true;
				g_browsername = 'iPad';
				//alert('major-version ' + vstr);
				return true;
			}		
		}		
	}	
	//Androidか?	
	var mstr = ua.match(/Android \d+\.\d+/);
	if(mstr != null)
	{
		g_browsername = 'Android';
		var vstr = mstr[0].match(/\d+\.\d+/);
		g_browserver = parseFloat(vstr[0]);
		g_mobiledevice = true;
		if(pg_browserver > 2.1) 
		{
			//alert('version ' + vstr);
			return true;
		}
	}
	//Chromeか?
	mstr = ua.match(/Chrome\/\d+/);
	if(mstr != null)
	{
		g_browsername = 'Chrome';
		var vstr = mstr[0].match(/\d+/);
		g_browserver = parseInt(vstr[0]);
		if(g_browserver >= 9) 
		{
			//alert('major-version ' + vstr);
			
			return true;
		}		
	}
	//Safariか?
	if(ua.indexOf('Safari') > -1)
	{
		mstr = ua.match(/Version\/\d+/);
		if(mstr != null){
			var vstr = mstr[0].match(/\d+/);
			if(parseInt(vstr[0]) >= 5) 
			{
				g_browsername = 'Safari';
				//alert('major-version ' + vstr);
				return true;
			}		
		}		
	}
	//Internet Explorerか?
	mstr = ua.match(/MSIE \d+/);
	if(mstr != null)
	{
		var vstr = mstr[0].match(/\d+/);
		if(parseInt(vstr[0]) >= 9) 
		{
			g_browsername = 'MSIE';
			//alert('major-version ' + vstr);
			return true;
		}		
	}
	//Firefoxか?
	mstr = ua.match(/Firefox\/\d+/);
	if(mstr != null){
		var vstr = mstr[0].match(/\d+/);
		if(parseInt(vstr[0]) >= 4) 
		{
			g_browsername = 'Firefox';
			//alert('major-version ' + vstr);
			return true;
		}		
	}
	//Operaか?
	if(ua.indexOf('Opera') > -1)
	{
		mstr = ua.match(/Version\/\d+/);
		if(mstr != null){
			var vstr = mstr[0].match(/\d+/);
			if(parseInt(vstr[0]) >= 11) 
			{
				g_browsername = 'Opera';
				//alert('major-version ' + vstr);
				return true;
			}		
		}		
	}
	
	return false;
}

base.js

window.addEventListener("load", init, false);
  
function init()
{
    var offsetX = 0,
    offsetY = 0,
    ctx,
    points = [],
    triangles = [],
    fl = 250,
    vpX = 0,
    vpY = 0,
    mouseX = 0,
    mouseY = 0,
    buttonDown,
    buttonMove,
    buttonUp,
    angleX = 0,
    angleY = 0,
    theContents;
     
    theContents = document.getElementById("contents");
    offsetX = (theContents.currentStyle || document.defaultView.getComputedStyle(theContents,'')).width;
    offsetX = Number(offsetX.replace('px', ''));
  
    offsetY = (theContents.currentStyle || document.defaultView.getComputedStyle(theContents,'')).height;
    offsetY = Number(offsetY.replace('px', ''));
     
    vpX = offsetX / 2;
    vpY = offsetY / 2;
    
    ctx = document.getElementById('canvas').getContext("2d");
     
    //ボタンタイプ
    if(g_mobiledevice === true)
    {
        buttonDown = 'touchstart';
        buttonMove = 'touchmove';
        buttonUp = 'touchend';
    }
    else
    {
        buttonDown = 'mousedown';
        buttonMove = 'mousemove';
        buttonUp = 'mouseup';
    }
     
    document.getElementById('canvas').addEventListener('touchstart', function() 
    {
        event.preventDefault();
    });
    document.getElementById('canvas').addEventListener('touchmove', function() 
    {
        event.preventDefault();
    });
    document.getElementById('canvas').addEventListener('touchend', function() 
    {
        event.preventDefault();
    });
     
    //document.getElementById('canvas').addEventListener(buttonMove, mouseMoveHandler, false);
    document.getElementById('canvas').addEventListener(buttonDown, mouseDownHandler, false);
    
    /*
     * x, y, z, vpX, vpY, cX, cY, cZ, index
     */
    //4隅
    var cX = 0,
    cY = 0,
    cZ = 0;
    point3D( -150, -150, 0, vpX, vpY, cX, cY, cZ, 0);
    point3D( 150, -150, 0, vpX, vpY, cX, cY, cZ, 1);
	point3D( 150, 150, 0, vpX, vpY, cX, cY, cZ, 2);
	point3D( -150, 150, 0, vpX, vpY, cX, cY, cZ, 3);
	
	/*
	 * pointA, pointB, pointC, color R, color G, color B, index
	 */
	//正面
	Triangle(points[0], points[1], points[2], 256, 0, 0, 0);
	Triangle(points[0], points[2], points[3], 0, 0, 256, 1);
	
	
	
    function point3D(x, y, z, vpX, vpY, cX, cY, cZ, i)
    {
    	var p = {};
        p.x = x;
		p.y = y;
		p.z = z;
		p.vpX = vpX;
		p.vpY = vpY;
		p.cX = cX;
		p.cY = cY;
		p.cZ = cZ;
		p.angleX = 0;
		p.angleY = 0;
		p.angleZ = 0;
		p.screenX = 0;
		p.screenY = 0;
		points[i] = p;
    }
    
    function Triangle(pointA, pointB, pointC, r, g, b, i)
	{
		var t = {};
		t.pointA = pointA;
		t.pointB = pointB;
		t.pointC = pointC;
		t.r = r;
		t.g = g;
		t.b = b;
		triangles[i] = t;
	}
	
	function draw(pointA, pointB, pointC, r, g, b)
	{
		ctx.fillStyle = "rgba(" + r + "," + g + "," + b + "," + 1 + ")";  
		ctx.strokeStyle = "rgba(" + r + "," + g + "," + b + "," + 1 + ")";
        ctx.lineWidth = 1;
        ctx.beginPath();
		ctx.moveTo(pointA.screenX, pointA.screenY);
		ctx.lineTo(pointB.screenX, pointB.screenY);
		ctx.lineTo(pointC.screenX, pointC.screenY);
		ctx.lineTo(pointA.screenX, pointA.screenY);
		ctx.fill();
		ctx.stroke();
	}
     
    setAnimation();
     
    function setAnimation()
    {
        animation();
        requestAnimationFrame(setAnimation);
    }
    
    function animation()
    {
        for(var i = 0; i < points.length; i++)
        {
        	var point = points[i];
        	
			//setRotateX(point, angleX);
			setRotateY(point, angleY);
			setScreenX(point);
			setScreenY(point);
        }
       	
       	ctx.clearRect(0, 0, 300, 300);
        for(i = 0; i < triangles.length; i++)
		{
			draw(triangles[i].pointA, triangles[i].pointB, triangles[i].pointC, triangles[i].r, triangles[i].g, triangles[i].b);
		}
		
		var dx = points[2].x;
		var dz = points[2].z;
		var radius = Math.atan2(dz, dx);
		var degree = radius * 180 / Math.PI;
		
		degree = Math.ceil(degree);
		if(degree === 180)
		{
			angleY = 0;
		}
		else
		if(degree === 0)
		{
			angleY = 0;
		}
    }
    
    function setScreenX(point)
    {
    	var scale = fl / (fl + point.z + point.cZ);
		point.screenX = point.vpX + (point.cX + point.x) * scale;
    }
    
    function setScreenY(point)
    {
		var scale = fl / (fl + point.z + point.cZ);
		point.screenY = point.vpY + (point.cY + point.y) * scale;
    }
    
    function setRotateX(point, angleX)
    {
		point.angleX = angleX;
		
		var cosX = Math.cos(point.angleX);
		var sinX = Math.sin(point.angleX);
		
		var y1 = point.y * cosX - point.z * sinX;
		var z1 = point.z * cosX + point.y * sinX;
		
		point.y = y1;
		point.z = z1;
    }
    
    function setRotateY(point, angleY)
    {
		point.angleY = angleY;
		
		var cosY = Math.cos(point.angleY);
		var sinY = Math.sin(point.angleY);
		
		var x1 = point.x * cosY - point.z * sinY;
		var z1 = point.z * cosY + point.x * sinY;
		
		point.x = x1;
		point.z = z1;
    }
    
    function setRotateZ(point, angleZ)
    {
    	var cosZ = Math.cos(point.angleZ);
		var sinZ = Math.sin(point.angleZ);
		
		var x1 = point.x * cosZ - point.y * sinZ;
		var y1 = point.y * cosZ + point.x * sinZ;
		
		point.x = x1;
		point.y = y1;
    }
    
    function mouseDownHandler(e)
	{
		var degree = 5;
		angleY = degree * Math.PI / 180;
	}
    
    function mouseMoveHandler(e)
    {
        if(g_mobiledevice)
        {
            var rect = event.currentTarget.getBoundingClientRect();
            mouseX = event.touches[0].pageX - rect.left;
            mouseY = event.touches[0].pageY - rect.top;
        }
        else
        if(g_browsername == 'MSIE'||g_browsername == 'Opera')
        {
            rect = document.getElementById("canvas").getBoundingClientRect();
            mouseX = event.clientX - rect.left;
            mouseY = event.clientY - rect.top;
        }
        else
        if(g_browsername == 'Firefox')
        {
            rect = document.getElementById("canvas").getBoundingClientRect();
            mouseX = e.clientX - rect.left;
            mouseY = e.clientY - rect.top;
        }
        else
        {
            rect = event.currentTarget.getBoundingClientRect();
            mouseX = event.clientX - rect.left;
            mouseY = event.clientY - rect.top;
        }
    }
}
 
// 各ブラウザ対応
(function()
{
	var requestAnimationFrame = window.requestAnimationFrame ||
			window.webkitRequestAnimationFrame ||
			window.mozRequestAnimationFrame ||
			window.oRequestAnimationFrame ||
			window.msRequestAnimationFrame ||
			function(callback)
			{
				setTimeout(callback, 1000 / 60);
			};

	var cancelAnimationFrame = window.cancelAnimationFrame ||
			window.webkitCancelRequestAnimationFrame ||
			window.mozCancelRequestAnimationFrame ||
			window.oCancelRequestAnimationFrame ||
			window.msCancelRequestAnimationFrame ||
			function(id)
			{
				clearTimeout(id);
			};

	window.requestAnimationFrame = requestAnimationFrame;
	window.cancelAnimationFrame = cancelAnimationFrame;
})();

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