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bbox example
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| license: mit |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <style> | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| console.clear() | |
| let data = [ | |
| {"id": 1, "heading": "Node 1", "description": "longer description for the node"}, | |
| {"id": 12, "heading": "Node 2", "description": "longer longer longer description for the node"} | |
| ] | |
| let width = 500 | |
| let height = 200 | |
| let svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| let nodes = svg.selectAll(".node") | |
| .data(data) | |
| .enter() | |
| .append("g") | |
| .attr("transform", (d,i) => "translate(250," + (i * 60 + 50) +")") | |
| let rects = nodes.append("rect") | |
| .attr("id", d => "rect-" + d.id) | |
| let headings = nodes.append("text") | |
| .text(d => d.heading) | |
| .attr("id", d => "heading-" + d.id) | |
| .attr("y", 12) | |
| .style("font-size", 24) | |
| .style("text-anchor", "middle") | |
| let descriptions = nodes.append("text") | |
| .text(d => d.description) | |
| .attr("id", d => "description-" + d.id) | |
| .attr("y", 32) | |
| .style("text-anchor", "middle") | |
| let rectPadding = 2 | |
| rects.attr("width", function(d){ | |
| let headingid = "#heading-" + d.id | |
| let descriptionid = "#description-" + d.id | |
| let headingbbox = d3.select(headingid).node().getBBox(); | |
| let descriptionbbox = d3.select(descriptionid).node().getBBox(); | |
| //console.log(headingbbox) | |
| //console.log(descriptionbbox) | |
| d.x = d3.min([headingbbox.x, descriptionbbox.x]) - rectPadding | |
| d.y = d3.min([headingbbox.y, descriptionbbox.y]) - rectPadding | |
| d.width = d3.max([headingbbox.width, descriptionbbox.width]) + (rectPadding * 2) | |
| d.height = d3.max([(headingbbox.height - headingbbox.y), (descriptionbbox.height - descriptionbbox.y)]) - d.y + (rectPadding * 2) | |
| return d.width | |
| }) | |
| .attr("x", d => d.x) | |
| .attr("y", d => d.y) | |
| .attr("height", d => d.height) | |
| .style("stroke", "black") | |
| .style("fill", "lightgrey") | |
| d3.selectAll("text") | |
| </script> | |
| </body> |
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