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e6f82830bb
This fixes the rounded rectangles not looking correctly and shows as a proof of concept what is needed for more complicated shapes. In this example we implement the two rounded corners of a rectangle as a svg `path` which is abstracted away as a function. Further steps could be made to make this a d3 shape, however is not needed at this stage.
175 lines
4.7 KiB
HTML
175 lines
4.7 KiB
HTML
<!DOCTYPE html>
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<meta charset='utf-8'>
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<style>
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.links line {
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stroke: #343434;
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stroke-opacity: 1;
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}
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.exclamation {
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font-family: LibreFranklin;
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font-size: 16px;
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font-weight: bold;
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font-style: normal;
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font-stretch: normal;
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text-align: center;
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color: #d75148;
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}
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</style>
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<svg width='960' height='600'></svg>
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<script src='https://d3js.org/d3.v4.min.js'></script>
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<script>
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var svg = d3.select('svg'),
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width = +svg.attr('width'),
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height = +svg.attr('height');
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var color = d3.scaleOrdinal(d3.schemeCategory20);
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var simulation = d3.forceSimulation()
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.force('link', d3.forceLink().distance(() => 200).id(function(d) { return d.id; }))
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.force('charge', d3.forceManyBody())
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.force('center', d3.forceCenter(width / 2, height / 2));
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function rightRoundedRect(x, y, width, height, radius) {
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return 'M' + x + ',' + y // Move to (absolute)
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+ 'h ' + (width - radius) // Horizontal line to (relative)
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+ 'a ' + radius + ',' + radius + ' 0 0 1 ' + radius + ',' + radius // Relative arc
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+ 'v ' + (height - 2 * radius) // Vertical line to (relative)
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+ 'a ' + radius + ',' + radius + ' 0 0 1 ' + -radius + ',' + radius // Relative arch
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+ 'h ' + (radius - width) // Horizontal lint to (relative)
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+ 'z '; // path back to start
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}
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function leftRoundedRect(x, y, width, height, radius) {
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return 'M' + (x + width) + ',' + y // Move to (absolute) start at top-right
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+ 'v ' + height // Vertical line to (relative)
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+ 'h ' + (radius - width) // Horizontal line to (relative)
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+ 'a ' + radius + ',' + radius + ' 0 0 1 ' + -radius + ',' + -radius // Relative arc
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+ 'v ' + -(height - 2 * radius) // Vertical line to (relative)
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+ 'a ' + radius + ',' + radius + ' 0 0 1 ' + radius + ',' + -radius // Relative arch
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+ 'z '; // path back to start
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}
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d3.json('services.json', function(error, graph) {
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if (error) throw error;
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// Drawing the links between nodes
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var link = svg.append('g')
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.attr('class', 'links')
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.selectAll('line')
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.data(graph.links)
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.enter().append('line')
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.attr('stroke-width', '2px')
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// And svg group, to contain all of the attributes in @antonas' first prototype
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var node = svg.selectAll('.node')
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.data(graph.nodes)
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.enter()
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.append('g')
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.attr('class', 'node_group');
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// Info Box
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node.append('path')
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.attr('class', 'node_info')
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.attr('d', leftRoundedRect('0', '0', 48, 48, 4))
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.attr('stroke', '#bc3e35')
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.attr('stroke-width', '1px')
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.attr('fill', '#d6534a')
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// node.append('rect')
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// .attr('class', 'node_info')
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// .attr('stroke', '#bc3e35')
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// .attr('stroke-width', '1px')
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// .attr('fill', '#d6534a')
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// .attr('height', '48px')
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// .attr('width', '48px')
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// .attr('rx', '4')
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// .attr('ry', '4')
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// Box where label will live
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node.append('path')
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.attr('class', 'node')
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.attr('d', rightRoundedRect('48', '0', 112, 48, 4))
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.attr('stroke', '#343434')
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.attr('stroke-width', '1px')
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.attr('fill', '#464646')
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// A circle that appears within the infobox.
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node.append('circle')
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.attr('class', 'alert')
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.attr('cx', '24')
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.attr('cy', '24')
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.attr('stroke-width', '0px')
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.attr('fill', '#fff')
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.attr('r', '9px')
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// An icon or label that exists within the circle, inside the infobox
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node.append('text')
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.attr('class', 'exclamation')
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.attr('x', '24')
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.attr('y', '30')
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.attr('text-anchor', 'middle')
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.attr('fill', '#d75148')
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.text('!')
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// Hover-over text for a node's label.
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node.append('text')
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.attr('class', 'info_text')
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.attr('x', '100')
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.attr('y', '30')
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.attr('text-anchor', 'middle')
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.attr('fill', '#fff')
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.text(d => d.id)
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node.call(d3.drag()
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.on('start', dragstarted)
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.on('drag', dragged)
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.on('end', dragended));
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node.append('title')
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.text(function(d) { return d.id; });
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simulation
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.nodes(graph.nodes)
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.on('tick', ticked);
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simulation.force('link')
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.links(graph.links);
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function ticked() {
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link
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.attr('x1', function(d) { return d.source.x + 80; })
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.attr('y1', function(d) { return d.source.y + 24; })
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.attr('x2', function(d) { return d.target.x + 80; })
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.attr('y2', function(d) { return d.target.y + 24; });
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node
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.attr('cx', function(d) { return d.x; })
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.attr('cy', function(d) { return d.y; });
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svg.selectAll('.node_group')
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.attr('transform', function(d) { return 'translate(' + d.x + ',' + d.y + ')'; });
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}
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});
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function dragstarted(d) {
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if (!d3.event.active) simulation.alphaTarget(0.3).restart();
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d.fx = d.x;
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d.fy = d.y;
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}
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function dragged(d) {
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d.fx = d3.event.x;
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d.fy = d3.event.y;
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}
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function dragended(d) {
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if (!d3.event.active) simulation.alphaTarget(0);
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d.fx = null;
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d.fy = null;
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}
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</script>
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