forked from chemplexity's block: Nitrogen Cycle
Created
August 27, 2018 08:02
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Nitrogen Cycle
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| license: mit |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .link { | |
| fill: none; | |
| stroke: #666; | |
| stroke-width: 2.8px; | |
| } | |
| .link.resolved { | |
| stroke-dasharray: 0,2 1; | |
| } | |
| circle { | |
| stroke-width: 3.0px; | |
| stroke-opacity: 0.75; | |
| } | |
| text { | |
| font-family: "Lucida Sans"; | |
| pointer-events: none; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var links = [ | |
| {source: 3, target: 0, type: "Fixation"}, | |
| {source: 0, target: 1, type: "ANAMMOX"}, | |
| {source: 1, target: 3, type: "ANAMMOX"}, | |
| {source: 6, target: 5, type: "Denitrification"}, | |
| {source: 5, target: 4, type: "Denitrification"}, | |
| {source: 4, target: 3, type: "Denitrification"}, | |
| {source: 0, target: 2, type: "Nitrification"}, | |
| {source: 2, target: 6, type: "Nitrification"}, | |
| {source: 6, target: 7, type: "Nitrification"}, | |
| {source: 7, target: 6, type: "Denitrification"}, | |
| {source: 6, target: 0, type: "DNRA"} | |
| ]; | |
| var nodes = [ | |
| {"name": "NH4", "oxidation": 1}, | |
| {"name": "N2H4", "oxidation": 2}, | |
| {"name": "NH2OH", "oxidation": 3}, | |
| {"name": "N2", "oxidation": 4}, | |
| {"name": "N2O", "oxidation": 5}, | |
| {"name": "NO", "oxidation": 6}, | |
| {"name": "NO2", "oxidation": 7}, | |
| {"name": "NO3", "oxidation": 9} | |
| ]; | |
| links.forEach(function(link) { | |
| link.source = nodes[link.source] || (nodes[link.source] = {name: link.source}); | |
| link.target = nodes[link.target] || (nodes[link.target] = {name: link.target}); | |
| }); | |
| var width = 500, | |
| height = 350, | |
| r = 15; | |
| var force = d3.layout.force() | |
| .nodes(d3.values(nodes)) | |
| .links(links) | |
| .size([width, height]) | |
| .linkDistance(35) | |
| .charge(-3000) | |
| .gravity(0.6) | |
| .theta(0.1) | |
| .on("tick", tick) | |
| .start(); | |
| // Color Scale | |
| var color = d3.scale.linear() | |
| .domain([4,9]) | |
| .range(['#d43939', '#3237fb']); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| svg.append("defs").selectAll("marker") | |
| .data(["Fixation", "ANAMMOX", "Denitrification", "Nitrification", "Denitrification", "DNRA"]) | |
| .enter().append("marker") | |
| .attr("id", function(d) { return d; }) | |
| .attr("viewBox", "1 -5 10 5") | |
| .attr("refX", 20) | |
| .attr("refY", -1.5) | |
| .attr("markerWidth", 5.5) | |
| .attr("markerHeight", 20) | |
| .attr("orient", "auto") | |
| .append("path") | |
| .attr("d", "M0,-2L10,0L2,5"); | |
| var path = svg.append("g").selectAll("path") | |
| .data(force.links()) | |
| .enter().append("path") | |
| .attr("class", function(d) { return "link " + d.type; }) | |
| .attr("marker-end", function(d) { return "url(#" + d.type + ")"; }); | |
| var circle = svg.append("g").selectAll("circle") | |
| .data(force.nodes()) | |
| .enter().append("circle") | |
| .attr("r", 19) | |
| .call(force.drag) | |
| //.style("opacity", 0.9) | |
| .style("fill", function(d) {return color(d.oxidation)}) | |
| .style("stroke", function(d) {return d3.rgb(color(d.oxidation)).darker(); }); | |
| var text = svg.append("g").selectAll("text") | |
| .data(force.nodes()) | |
| .enter().append("text") | |
| .attr("y", ".31em") | |
| .attr("fill", "black") | |
| .style("font-size", function(d) { return 16}) | |
| .style("font-weight", 200) | |
| .style("text-anchor", "middle") | |
| .text(function(d) { return d.name; }); | |
| function tick() { | |
| path.attr("d", linkArc); | |
| path.attr("x1", function(d) { return d.source.x; }) | |
| .attr("y1", function(d) { return d.source.y; }) | |
| .attr("x2", function(d) { return d.target.x; }) | |
| .attr("y2", function(d) { return d.target.y; }); | |
| circle.attr("cx", function(d) { return d.x = Math.max(r, Math.min(width - r, d.x)); }) | |
| .attr("cy", function(d) { return d.y = Math.max(r, Math.min(height - r, d.y)); }); | |
| text.attr("transform", function(d) {return "translate(" + d.x + "," + d.y + ")"; }); | |
| } | |
| function linkArc(d) { | |
| var dx = d.target.x - d.source.x, | |
| dy = d.target.y - d.source.y, | |
| dr = Math.sqrt(dx*dx + dy*dy); | |
| return "M" + d.source.x + "," + d.source.y + "A" + dr + "," + dr + " 0 0,1 " + d.target.x + "," + d.target.y; | |
| } | |
| </script> | |
| </body> |
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