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@ -16,51 +16,32 @@ d3.select('svg').selectAll('path')
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.attr('fill', '#099')
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.attr('d', dAttributeFunction);
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const dragBehavior = d3.drag()
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.on('start', (event) => {
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d3.select('table tr:nth-child(2) td:first-child')
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.html(worldProjection.invert([event.x, event.y])[0])
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d3.select('table tr:nth-child(2) td:last-child')
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.html(worldProjection.invert([event.x, event.y])[1])
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d3.selectAll('rect').remove();
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d3.select('svg').append('rect')
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.attr('x', event.x)
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.attr('y', event.y);
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let points = [];
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d3.select('svg').on('click', (event)=>{
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points.push([event.x, event.y])
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const path = d3.path();
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path.moveTo(points[0][0], points[0][1])
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for(let i = 1; i < points.length; i++){
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path.lineTo(points[i][0], points[i][1])
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}
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path.closePath()
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d3.select('#polygon').remove()
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d3.select('svg')
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.append('path')
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.attr('id', 'polygon')
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.attr('fill', 'black')
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.attr('d', path)
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})
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.on('drag', (event) => {
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d3.select('table tr:nth-child(3) td:first-child')
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.html(worldProjection.invert([event.x, event.y])[0])
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d3.select('table tr:nth-child(3) td:last-child')
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.html(worldProjection.invert([event.x, event.y])[1])
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d3.select('rect').attr('width', event.x-d3.select('rect').attr('x'))
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d3.select('rect').attr('height', event.y-d3.select('rect').attr('y'))
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d3.select('body').on('keydown', (event)=>{
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d3.select('tbody').html('');
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const coords = points.map(point => worldProjection.invert(point))
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for(coord of coords){
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const row = d3.select('tbody')
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.append('tr')
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row.append('td')
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.html(coord[0])
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row.append('td')
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.html(coord[1])
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}
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points = [];
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})
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d3.select('svg').call(dragBehavior);
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d3.select('form').on('submit', (event) => {
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event.preventDefault();
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d3.selectAll('rect').remove();
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const lat1 = d3.select('input:first-child').property('value');
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const lng1 = d3.select('input:nth-child(2)').property('value');
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const location1 = worldProjection([lat1, lng1]);
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const x1 = location1[0];
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const y1 = location1[1];
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const lat2 = d3.select('input:nth-child(4)').property('value');
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const lng2 = d3.select('input:nth-child(5)').property('value');
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const location2 = worldProjection([lat2, lng2]);
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const x2 = location2[0];
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const y2 = location2[1];
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d3.select('svg').append('rect')
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.attr('fill', '#000')
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.attr('x', x1)
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.attr('y', y1)
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.attr('width', x2-x1)
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.attr('height', y2-y1)
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});
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Matt Huntington