rubillionaire/README.md

## README.md

      
    Raw
  

              README.md
            
          
    Example of using the viewBox to zoom into a number of areas of interest.

  
## index.html
<!DOCTYPE html>
<html>
    <head>
        <title>Transition ViewBox</title>
        <link rel='stylesheet' type='text/css' href='' />
        <meta http-equiv='content-type' content='text/html; charset=utf-8' />
        <meta name='viewport' content='initial-scale=1.0 maximum-scale=1.0'>
        <style>
        .body {
            width: 960px;
            height: 500px;
            margin: 0;
            padding: 0;
        }
        .big {
            fill: rgb(65, 45, 109);
        }
        .small {
            fill: white;
            opacity: 0.5;
        }
        .label {
            font-family: Helvetica;
            font-size: 100px;
            font-weight: bold;
            position: absolute;
            left: 10%;
            color: white;
            text-align: center;
        }
        </style>
    </head>
    <body>
        <svg width="960" height="500">
            <g>
                <rect x="0" y="0" width="960" height="500" class="aoi big" data-name="all"/>
                <rect x="140" y="140" width="38.4" height="20" class="aoi small" data-name="region1"/>
                <rect x="180" y="180" width="76.8" height="40" class="aoi small" data-name="region2"/>
                <rect x="300" y="400" width="192" height="100" class="aoi small" data-name="region3"/>
                <rect x="500" y="100" width="200" height="104.16" class="aoi small" data-name="region4"/>
                <rect x="200" y="200" width="576" height="300" class="aoi small" data-name="region5"/>
            </g>
        </svg>
        <p class="label"></p>

        <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
        <script>

        // get selection from DOM
        var svg = d3.select('svg')
            label = d3.select('.label');

        // get the overall area to define
        // the viewbox.
        var width = svg.attr('width'),
            height = svg.attr('height');

        // set the initial view box
        // 0 0 are the x and y coordinates
        // preserveAspectRatio will ensure
        // things scale properly
        svg.attr('viewBox', '0 0 ' + width + ' ' + height)
            .attr('preserveAspectRatio', 'xMinYMin meet');

        // stash all areas of interest;
        var aois = {}

        // get data for each of the
        // areas of interest, based
        // on the elements with `.aoi`
        svg.selectAll('.aoi')
            .datum(function () {
                // define the datum for this selection
                // based on the data- attributes for
                // the elements
                return this.dataset;
            })
            .each(function (d) {
                // d is the current datum

                // aoi is the current element
                var aoi = d3.select(this);

                // assuming none of the area of interest
                // are named the same
                aois[d.name] = {
                    viewBox: aoi.attr('x') + ' ' +
                             aoi.attr('y') + ' ' +
                             aoi.attr('width') + ' ' +
                             aoi.attr('height')
                };
            });

        // make scale to rotate
        // through different AOIs
        var scale = d3.scale.ordinal()
                      .range(Object.keys(aois)),
            count = 0;

        setInterval(function () {
            count += 1;
            var current = scale(count);

            // transition the svg
            svg.transition()
                .duration(1000)
                .each('start', function () {
                    // at the beginning of the transition
                    // set the label to nothing, move it out
                    // of the way
                    label.text('')
                        .style('top', '-100%');
                })
                .attr('viewBox', aois[current].viewBox)
                .each('end', function () {
                    // at the end of the transition
                    // set the label to the name of the
                    // current AOI, move it back into place
                    label.text(current)
                        .style('top', '10%');
                });
        }, 2000);
        </script>
    </body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<title>Transition ViewBox</title>
	<link rel='stylesheet' type='text/css' href='' />
	<meta http-equiv='content-type' content='text/html; charset=utf-8' />
	<meta name='viewport' content='initial-scale=1.0 maximum-scale=1.0'>
	<style>
	.body {
	width: 960px;
	height: 500px;
	margin: 0;
	padding: 0;
	}
	.big {
	fill: rgb(65, 45, 109);
	}
	.small {
	fill: white;
	opacity: 0.5;
	}
	.label {
	font-family: Helvetica;
	font-size: 100px;
	font-weight: bold;
	position: absolute;
	left: 10%;
	color: white;
	text-align: center;
	}
	</style>
	</head>
	<body>
	<svg width="960" height="500">
	<g>
	<rect x="0" y="0" width="960" height="500" class="aoi big" data-name="all"/>
	<rect x="140" y="140" width="38.4" height="20" class="aoi small" data-name="region1"/>
	<rect x="180" y="180" width="76.8" height="40" class="aoi small" data-name="region2"/>
	<rect x="300" y="400" width="192" height="100" class="aoi small" data-name="region3"/>
	<rect x="500" y="100" width="200" height="104.16" class="aoi small" data-name="region4"/>
	<rect x="200" y="200" width="576" height="300" class="aoi small" data-name="region5"/>
	</g>
	</svg>
	<p class="label"></p>

	<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
	<script>

	// get selection from DOM
	var svg = d3.select('svg')
	label = d3.select('.label');

	// get the overall area to define
	// the viewbox.
	var width = svg.attr('width'),
	height = svg.attr('height');

	// set the initial view box
	// 0 0 are the x and y coordinates
	// preserveAspectRatio will ensure
	// things scale properly
	svg.attr('viewBox', '0 0 ' + width + ' ' + height)
	.attr('preserveAspectRatio', 'xMinYMin meet');

	// stash all areas of interest;
	var aois = {}

	// get data for each of the
	// areas of interest, based
	// on the elements with `.aoi`
	svg.selectAll('.aoi')
	.datum(function () {
	// define the datum for this selection
	// based on the data- attributes for
	// the elements
	return this.dataset;
	})
	.each(function (d) {
	// d is the current datum

	// aoi is the current element
	var aoi = d3.select(this);

	// assuming none of the area of interest
	// are named the same
	aois[d.name] = {
	viewBox: aoi.attr('x') + ' ' +
	aoi.attr('y') + ' ' +
	aoi.attr('width') + ' ' +
	aoi.attr('height')
	};
	});

	// make scale to rotate
	// through different AOIs
	var scale = d3.scale.ordinal()
	.range(Object.keys(aois)),
	count = 0;

	setInterval(function () {
	count += 1;
	var current = scale(count);

	// transition the svg
	svg.transition()
	.duration(1000)
	.each('start', function () {
	// at the beginning of the transition
	// set the label to nothing, move it out
	// of the way
	label.text('')
	.style('top', '-100%');
	})
	.attr('viewBox', aois[current].viewBox)
	.each('end', function () {
	// at the end of the transition
	// set the label to the name of the
	// current AOI, move it back into place
	label.text(current)
	.style('top', '10%');
	});
	}, 2000);
	</script>
	</body>
	</html>