データの準備 †

↑

正距円筒図法で世界地図を描く †

Your borwser is not supporting object tag. Please use one of the latest browsers.
Go to /D3JSExam/D3JS-map3.html

https://github.com/kagyuu/D3JSExam/blob/master/D3JS-map3.html

<!DOCTYPE html>

<html lang="en">
<head>
    <meta charset="utf-8">

    <title>D3 JP Map</title>
    <style type="text/css">
        .land {
            fill : lime;
            stroke : none;
        }
        .land-boundary {
            fill: none;
            stroke: white;
            stroke-dasharray: 2,2;
            stroke-linejoin: round;
        }
        .land-sea-boundary {
            fill: none;
            stroke: gray;
            stroke-width : 0.3;
        }
        .river {
            fill: none;
            stroke: blue;
            stroke-width : 0.3;
        }
        .lake {
            fill: blue;
            stroke: none;
        }
        .graticule {
            fill: none;
            stroke: #777;
            stroke-width: .5px;
            stroke-opacity: .5;
        }
    </style>
    <script type="text/javascript" src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
    <script type="text/javascript" src="https://d3js.org/topojson.v1.min.js" charset="utf-8"></script>
</head>

<body>
    <div id="unitName" class="hidden"></div><script type="text/javascript">
        var width = 640;
        var height = 320;

        var svg = d3.select("body").append("svg")
                .attr("width", width)
                .attr("height", height);

        svg.append("rect").attr({x:0, y:0, width:width, height:height, stroke:"black", fill:"lavender"});
        var projection = d3.geo.equirectangular()
                .scale(110)
                .center([0, 0])
                .translate([width / 2, height / 2]);

        var path = d3.geo.path()
                .projection(projection);
                
        var graticule = d3.geo.graticule();

        //var url = "index.php?plugin=attach&pcmd=open&file=world.json&refer=HTML%20D3.js%20Globe";
        var url = "world.json";

        d3.json(url, function(error, data){

            var land = topojson.feature(data, data.objects.land);
            var river = topojson.feature(data, data.objects.river);
            var lake = topojson.feature(data, data.objects.lake);

            // 経線、緯線
            svg.append("path")
                .datum(graticule)
                .attr("class", "graticule")
                .attr("d", path);

            // 国
            svg.selectAll(".lands")
                .data(land.features)
                .enter()
                .append("path")
                .attr("class", "land")
                .attr("d", path);

            // 国境 (他のポリゴンと共有)
            svg.append("path")
                .datum(topojson.mesh(data, data.objects.land, function(a, b) { return a !== b; }))
                .attr("d", path)
                .attr("class", "land-boundary");

            // 海岸 (他のポリゴンと共有しない)
            svg.append("path")
                .datum(topojson.mesh(data, data.objects.land, function(a, b) { return a === b; }))
                .attr("d", path)
                .attr("class", "land-sea-boundary");


            // 河川
            svg.selectAll(".river")
                .data(river.features)
                .enter()
                .append("path")
                .attr("class", "river")
                .attr("d", path);


            // 湖沼
            svg.selectAll(".lake")
                .data(lake.features)
                .enter()
                .append("path")
                .attr("class", "lake")
                .attr("d", path);

        }); // end of d3.json
    </script>
</body>
</html>

これは、HTML D3.js Geo でやったのと同じ

↑

擬似的な地球儀を作る †

Your borwser is not supporting object tag. Please use one of the latest browsers.
Go to /D3JSExam/D3JS-map4.html

https://github.com/kagyuu/D3JSExam/blob/master/D3JS-map4.html

<!DOCTYPE html>

<html lang="en">
<head>
    <meta charset="utf-8">

    <title>D3 Globe</title>
    <style type="text/css">
        .land {
            fill : lime;
            stroke : none;
        }
        .land-boundary {
            fill: none;
            stroke: gray;
            stroke-dasharray: 2,2;
            stroke-linejoin: round;
        }
        .land-sea-boundary {
            fill: none;
            stroke: gray;
            stroke-width : 0.3;
        }
        .river {
            fill: none;
            stroke: blue;
            stroke-width : 0.3;
        }
        .lake {
            fill: blue;
            stroke: none;
        }
        .graticule {
            fill: none;
            stroke: white;
            stroke-width: .5;
            stroke-opacity: .5;
        }
        .equator {
            fill: none;
            stroke: red;
            stroke-width : 1;
        }
    </style>
    <script type="text/javascript" src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
    <script type="text/javascript" src="https://d3js.org/topojson.v1.min.js" charset="utf-8"></script>
</head>

<body bgcolor="black">
    <script type="text/javascript">
        var width = 480;
        var height = 480;

        var projection = d3.geo.orthographic()
                .scale(200)
                .center([0, 0])
                .translate([width / 2, height / 2])
                .clipAngle(90);

        var path = d3.geo.path()
                .projection(projection);
                
        var graticule = d3.geo.graticule();
        
        var svg = d3.select("body").append("svg")
                .attr("width", width)
                .attr("height", height);

		// グラデーション定義
		var defs = svg.append("defs");
		
		var grad1 = defs.append("linearGradient")
		    .attr("id", "g1")
		    .attr("x1", "0")
		    .attr("y1", "0")
		    .attr("x2", "1")
		    .attr("y2", "1");
		
        grad1.append("stop")
		     .attr("offset", "0.0")
		     .attr("stop-color", "blue");
		
		grad1.append("stop")
		     .attr("offset", "1.0")
		     .attr("stop-color", "darkblue");
		
		// 球 (の見た目の円) をグラデーションで塗りつぶす
		svg.append("path")
		    .datum({type: "Sphere"})
		    .attr("id", "sphere")
		    .attr("d", path)
		    .attr("fill", "url(#g1)");

        //var url = "index.php?plugin=attach&pcmd=open&file=world.json&refer=HTML%20D3.js%20Globe";
        var url = "world.json";

        d3.json(url, function(error, data){

            var land = topojson.feature(data, data.objects.land);
            var river = topojson.feature(data, data.objects.river);
            var lake = topojson.feature(data, data.objects.lake);

            // 経線、緯線
            svg.append("path")
                .datum(graticule)
                .attr("class", "graticule")
                .attr("d", path);

            // 国
            svg.selectAll(".lands")
                .data(land.features)
                .enter()
                .append("path")
                .attr("class", "land")
                .attr("d", path);

            // 国境 (他のポリゴンと共有)
            svg.append("path")
                .datum(topojson.mesh(data, data.objects.land, function(a, b) { return a !== b; }))
                .attr("d", path)
                .attr("class", "land-boundary");

            // 海岸 (他のポリゴンと共有しない)
            svg.append("path")
                .datum(topojson.mesh(data, data.objects.land, function(a, b) { return a === b; }))
                .attr("d", path)
                .attr("class", "land-sea-boundary");


            // 河川
            svg.selectAll(".river")
                .data(river.features)
                .enter()
                .append("path")
                .attr("class", "river")
                .attr("d", path);


            // 湖沼
            svg.selectAll(".lake")
                .data(lake.features)
                .enter()
                .append("path")
                .attr("class", "lake")
                .attr("d", path);
            
            // 赤道
            svg.insert("path")
                .datum(equatorGeoJson())
                .attr("class", "equator")
                .attr("d", path);
                        
            // アニメーション開始
            rotate();

        }); // end of d3.json
        
        var vLat = 0;
        var vLon = 0;
        function rotate() {
            
            vLat = Math.sin(Math.PI * vLon / 180) * 25;
            vLat = vLat > 90 ? 90 : vLat < -90 ? -90 : vLat;
            
            vLon = (vLon + 3) % 360;
	        projection.rotate([vLon, vLat, 0]);
            
            svg.selectAll("path")
                .attr("d", path);
            
            setTimeout("rotate()", 100);
        }
        
        function equatorGeoJson() {
		
		    var path = new Array();
		
		    for (var lon = -180; lon <= 180; lon += 5) {
		        path.push([lon, 0]);
		    }
		
		    return {
		        "type": "Feature",
		        "geometry": {
		        "type": "LineString",
		        "coordinates": path
		    }
		  };
		}
    </script>
</body>
</html>

↑

projection を切り替える †

Your borwser is not supporting object tag. Please use one of the latest browsers.
Go to /D3JSExam/D3JS-map5.html


回転の応用。球に地図を投影する path() と 平面に投影する path2() を交互に SVG の全 <path> に適用しているだけ
1990 年代の CG みたいで懐かしい

https://github.com/kagyuu/D3JSExam/blob/master/D3JS-map5.html

<!DOCTYPE html>

<html lang="en">
<head>
    <meta charset="utf-8">

    <title>D3 Globe</title>
    <style type="text/css">
        .land {
            fill : lime;
            stroke : none;
        }
        .land-boundary {
            fill: none;
            stroke: gray;
            stroke-dasharray: 2,2;
            stroke-linejoin: round;
        }
        .land-sea-boundary {
            fill: none;
            stroke: gray;
            stroke-width : 0.3;
        }
        .river {
            fill: none;
            stroke: blue;
            stroke-width : 0.3;
        }
        .lake {
            fill: blue;
            stroke: none;
        }
        .graticule {
            fill: none;
            stroke: white;
            stroke-width: .5;
            stroke-opacity: .5;
        }
        .equator {
            fill: none;
            stroke: red;
            stroke-width : 1;
        }
    </style>
    <script type="text/javascript" src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
    <script type="text/javascript" src="https://d3js.org/topojson.v1.min.js" charset="utf-8"></script>
</head>

<body bgcolor="black">
    <svg></svg>
    <button>flat</button>
    <script type="text/javascript">
        var width = 480;
        var height = 480;

        var projection = d3.geo.orthographic()
                .scale(200)
                .center([0, 0])
                .translate([width / 2, height / 2])
                .clipAngle(90);

        var path = d3.geo.path()
                .projection(projection);
                
        var graticule = d3.geo.graticule();
        
        var svg = d3.select("svg")
                .attr("width", width)
                .attr("height", height);

		// グラデーション定義
		var defs = svg.append("defs");
		
		var grad1 = defs.append("linearGradient")
		    .attr("id", "g1")
		    .attr("x1", "0")
		    .attr("y1", "0")
		    .attr("x2", "1")
		    .attr("y2", "1");
		
        grad1.append("stop")
		     .attr("offset", "0.0")
		     .attr("stop-color", "blue");
		
		grad1.append("stop")
		     .attr("offset", "1.0")
		     .attr("stop-color", "darkblue");
		
		// 球 (の見た目の円) をグラデーションで塗りつぶす
		svg.append("path")
		    .datum({type: "Sphere"})
		    .attr("id", "sphere")
		    .attr("d", path)
		    .attr("fill", "url(#g1)");

        //var url = "index.php?plugin=attach&pcmd=open&file=world.json&refer=HTML%20D3.js%20Globe";
        var url = "world.json";

        d3.json(url, function(error, data){

            var land = topojson.feature(data, data.objects.land);
            var river = topojson.feature(data, data.objects.river);
            var lake = topojson.feature(data, data.objects.lake);

            // 経線、緯線
            svg.append("path")
                .datum(graticule)
                .attr("class", "graticule")
                .attr("d", path);

            // 国
            svg.selectAll(".lands")
                .data(land.features)
                .enter()
                .append("path")
                .attr("class", "land")
                .attr("d", path);

            // 国境 (他のポリゴンと共有)
            svg.append("path")
                .datum(topojson.mesh(data, data.objects.land, function(a, b) { return a !== b; }))
                .attr("d", path)
                .attr("class", "land-boundary");

            // 海岸 (他のポリゴンと共有しない)
            svg.append("path")
                .datum(topojson.mesh(data, data.objects.land, function(a, b) { return a === b; }))
                .attr("d", path)
                .attr("class", "land-sea-boundary");


            // 河川
            svg.selectAll(".river")
                .data(river.features)
                .enter()
                .append("path")
                .attr("class", "river")
                .attr("d", path);


            // 湖沼
            svg.selectAll(".lake")
                .data(lake.features)
                .enter()
                .append("path")
                .attr("class", "lake")
                .attr("d", path);
            
            // 赤道
            svg.insert("path")
                .datum(equatorGeoJson())
                .attr("class", "equator")
                .attr("d", path);

        }); // end of d3.json
        
        var projection2 = d3.geo.equirectangular()
	        .scale(200)
	        .center([0,0])
	        .translate([width / 2, height / 2]);
        
        var path2 = d3.geo.path().projection(projection2);   
        
        d3.select("button").on("click", function() {
	    	
	    	var $this = d3.select(this);
	    	
	    	switch ($this.text()) {
	    	case "flat" :
		        svg.selectAll("path")
			        .transition()
			        .ease("sin")
			        .duration(1000)
			        .attr("d", path2);
	    		$this.text("globe");
	    	    break;
	    	    
	    	case "globe" :
	    	default :
		        svg.selectAll("path")
			        .transition()
			        .ease("sin")
			        .duration(500)
			        .attr("d", path);
	    		$this.text("flat");
	    	    break;
	    	}  
        })
                
        function equatorGeoJson() {
		
		    var path = new Array();
		
		    for (var lon = -180; lon <= 180; lon += 5) {
		        path.push([lon, 0]);
		    }
		
		    return {
		        "type": "Feature",
		        "geometry": {
		        "type": "LineString",
		        "coordinates": path
		    }
		  };
		}
    </script>
</body>
</html>

↑

衛星軌道から見下ろしたようなアニメーションを作る †

Your borwser is not supporting object tag. Please use one of the latest browsers.
Go to /D3JSExam/D3JS-map6.html


回転の応用。球に地図を投影する path() と 平面に投影する path2() を交互に SVG の全 <path> に適用しているだけ
1990 年代の CG みたいで懐かしい

https://github.com/kagyuu/D3JSExam/blob/master/D3JS-map6.html

<!DOCTYPE html>

<html lang="en">
<head>
    <meta charset="utf-8">

    <title>D3 Globe</title>
    <link rel="stylesheet" type="text/css" href="https://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css">
    <style type="text/css">
        .land {
            fill : lime;
            stroke : none;
        }
        .land-boundary {
            fill: none;
            stroke: gray;
            stroke-dasharray: 2,2;
            stroke-linejoin: round;
        }
        .land-sea-boundary {
            fill: none;
            stroke: gray;
            stroke-width : 0.3;
        }
        .river {
            fill: none;
            stroke: blue;
            stroke-width : 0.3;
        }
        .lake {
            fill: blue;
            stroke: none;
        }
        .graticule {
            fill: none;
            stroke: black;
            stroke-width: .5;
            stroke-opacity: .5;
        }
        td {
            padding-left: 20px;
        }
    </style>
    <script type="text/javascript" src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
    <script type="text/javascript" src="https://d3js.org/topojson.v1.min.js" charset="utf-8"></script>
    <script type="text/javascript" src="https://d3js.org/d3.geo.projection.v0.min.js" charset="utf-8"></script>
    <script type="text/javascript" src="https://code.jquery.com/jquery-2.0.3.min.js" charset="utf-8"></script>
    <script type="text/javascript" src="https://code.jquery.com/ui/1.10.3/jquery-ui.js" charset="utf-8"></script>    
</head>

<body>
<div style="position:absolute;color:black;background:orange;opacity:0.6">
    <table border="0">
        <tbody>
            <tr>
                <td>distance</td>
                <td width="300px"><div id="slider_distance"></div></td>
                <td><span id="value_distance"></span></td>
            </tr>
            <tr>
                <td>scale</td>
                <td width="300px"><div id="slider_scale"></div></td>
                <td><span id="value_scale"></span></td>
            </tr>
            <tr>
                <td>rotate</td>
                <td width="300px"><div id="slider_beta"></div></td>
                <td><span id="value_rotate"></span></td>
            </tr>            
            <tr>
                <td>tilt</td>
                <td width="300px"><div id="slider_tilt"></div></td>
                <td><span id="value_tilt"></span></td>
            </tr>            
            <tr>
                <td>clip angle</td>
                <td width="300px"><div id="slider_clipangle"></div></td>
                <td><span id="value_clipangle"></span></td>
            </tr>            
            <tr>
                <td>precision</td>
                <td width="300px"><div id="slider_precision"></div></td>
                <td><span id="value_precision"></span></td>
            </tr>            
        </tbody>
    </table>
</div>
    <script type="text/javascript">

        var width = 800;
        var height = 480;

        var lon = 0;
        var lat = 0;
        var dlon = 5/180;
        var dlat = 1;

        var beta = 180;

        var distance = 1.5;
        var scale = 500;
        var tilt = 40;
        var clipangle = 60;
        var precision = 0.1;

        $("#slider_distance").slider({
            min: 1.0,
            max: 10.0,
            step: 0.1,
            value: distance,
            change : function(event, ui) {
                distance = ui.value;
                $("#value_distance").text(distance);
            }
        });

        $("#slider_scale").slider({
            min: 100,
            max: 2000,
            step: 100,
            value: scale,
            change : function(event, ui) {
                scale = ui.value;
                $("#value_scale").text(scale);
            }
        });

        $("#slider_beta").slider({
            min: 0,
            max: 360,
            step: 10,
            value: beta,
            change : function(event, ui) {
                beta = ui.value;
            }
        });

        $("#slider_tilt").slider({
            min: 0,
            max: 100,
            step: 10,
            value: tilt,
            change : function(event, ui) {
                tilt = ui.value;
                $("#value_tilt").text(tilt);
            }
        });

        $("#slider_clipangle").slider({
            min: 0,
            max: 180,
            step: 10,
            value: clipangle,
            change : function(event, ui) {
                clipangle = ui.value;
                $("#value_clipangle").text(clipangle);
            }
        });

        $("#slider_precision").slider({
            min: 0,
            max: 1,
            step: 0.1,
            value: precision,
            change : function(event, ui) {
                precision = ui.value;
                $("#value_precision").text(precision);
            }
        });

        $("#value_distance").text(distance);
        $("#value_scale").text(scale);
        $("#value_rotate").text("[" + lon + "," + lat + "," + beta + "]");
        $("#value_tilt").text(tilt);
        $("#value_clipangle").text(clipangle);
        $("#value_precision").text(precision);

        var projection = d3.geo.satellite()
            .distance(distance)
            .scale(scale)
            .rotate([lon, lat, beta])
            .center([0,0])
            .tilt(tilt)
            .clipAngle(clipangle)
            .precision(precision)
            .translate([width / 2, height / 2]);

        var path = d3.geo.path()
                .projection(projection);
                
        var graticule = d3.geo.graticule();
        
        var svg = d3.select("body").append("svg")
                .attr("width", width)
                .attr("height", height);

        //var url = "index.php?plugin=attach&pcmd=open&file=world.json&refer=HTML%20D3.js%20Globe";
        var url = "world.json";

        d3.json(url, function(error, data){

            var ocean = topojson.feature(data, data.objects.ocean);
            var land = topojson.feature(data, data.objects.land);
            var river = topojson.feature(data, data.objects.river);
            var lake = topojson.feature(data, data.objects.lake);

            // 経線、緯線
            svg.append("path")
                .datum(graticule)
                .attr("class", "graticule")
                .attr("d", path);
                
            // 国
            svg.selectAll(".lands")
                .data(land.features)
                .enter()
                .append("path")
                .attr("class", "land")
                .attr("d", path);

            // 国境 (他のポリゴンと共有)
            svg.append("path")
                .datum(topojson.mesh(data, data.objects.land, function(a, b) { return a !== b; }))
                .attr("d", path)
                .attr("class", "land-boundary");

            // 海岸 (他のポリゴンと共有しない)
            svg.append("path")
                .datum(topojson.mesh(data, data.objects.land, function(a, b) { return a === b; }))
                .attr("d", path)
                .attr("class", "land-sea-boundary");


            // 河川
            svg.selectAll(".river")
                .data(river.features)
                .enter()
                .append("path")
                .attr("class", "river")
                .attr("d", path);


            // 湖沼
            svg.selectAll(".lake")
                .data(lake.features)
                .enter()
                .append("path")
                .attr("class", "lake")
                .attr("d", path);

            // アニメーション開始
            rotate();

        }); // end of d3.json
        
        function rotate() {
            
            lon += dlon;
            lat += dlat;
            if (lat > 90) {
                lat = 90;
                dlat *= -1;
                dlon *= -1;
                lon = (lon + 180) % 360;
                beta = (beta + 180) % 360;
                 $("#slider_beta").slider("value", beta);
           } else if (lat < -90) {
                lat = -90;
                dlat *= -1;
                dlon *= -1;
                lon = (lon + 180) % 360;
                beta = (beta + 180) % 360;
                $("#slider_beta").slider("value", beta);
            }

            $("#value_rotate").text("[" + Math.floor(lon) + "," + Math.floor(lat) + "," + beta + "]");
            
            projection
                .distance(distance)
                .scale(scale)
                .rotate([lon, lat, beta])
                .center([0,0])
                .tilt(tilt)
                .clipAngle(clipangle)
                .precision(precision);
            
            svg.selectAll("path")
                .attr("d", path);
            
            setTimeout("rotate()", 100);
        }

    </script>
</body>
</html>

HTML / GIS

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Last-modified: 2016-07-08 (金) 00:46:34 (2843d)
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ISBN10
ISBN13
9784061426061