d3js拓扑关系特效可视化展现
在上一篇d3js文档http://www.cnblogs.com/juandx/p/3959900.html中讲了简单的d3js方法和效果，现在我做一个完整的演示，使用d3js来展现动态可视化的网络拓扑效果图，希望对大家有所帮助。
<%= render partial: 'bar' %>
<style>
.table td{
text-align: center;
}
td .progress {
margin-bottom: 0;
175px;
}
td .progress-text {
position: absolute;
175px;
text-align: center;
}
.tdwidth{175px;}
.progress {
margin-bottom: 0;
175px;
}
.progress-text {
position: absolute;
175px;
text-align: center;
}
</style>
<head>
<style type="text/css">
body
{
height: 100%;
}
</style>
<meta charset="utf-8">
<title>D3 Page Template</title>
<script type="text/javascript" src="d3/d3.js"></script>
</head>
<body>
<% vts_size = @vts.size %>
<% sts_size = @sts.size %>
<% stvs_size = @stvs.size %>
<% all_size = vts_size + sts_size + stvs_size %>
<% v_and_s = Array.new(all_size ) %>
<% for i in 0..sts_size-1 do %>
<% v_and_s[i] = @sts[i] %>
<% end %>
<% for i in sts_size..sts_size+vts_size-1 do %>
<% v_and_s[i] = @vts[i-sts_size] %>
<% end %>
<% for i in sts_size+vts_size..all_size do %>
<% v_and_s[i] = @vts[i-sts_size-vts_size] %>
<% end %>
<svg width="200" height="100">
<circle cx="12" cy="10" r="10" fill="#FF3420"/>
<circle cx="12" cy="35" r="10" fill="#7FFF00"/>
<rect x="2" y="50" width="20" height="20" style="fill:#1E90FF" />
<text x="30" y="13" fill="black">switch</text>
<text x="30" y="39" fill="black">virtual switch</text>
<text x="30" y="64" fill="black">virtual machine</text>
</svg>
<script type="text/javascript" charset="utf-8">
var w = 1200;
var h = 600;
var names = [];
var sts_size = <%= sts_size %>;
var vts_size = <%= vts_size %>;
var stvs_size = <%= stvs_size %>
var all_size = <%= all_size %>;
var i = 0;
var j = 0;
var k = 0;
var nodes = [];
var edges = [];
var sts1_array = new Array();
var sts1_used = new Array();
var all_array = new Array();
for(i = 0; i < sts_size/2; ++i)
{
all_array[i] = new Array();
}
//把sts表导成一个二维数组sts1_array
for(i = 0; i < sts_size; ++i)
{
sts1_array[i] = new Array();
sts1_used[i] = 0;
}
i = 0;
<% for i in 0..sts_size-1 do %>
sts1_array[i][0] = "<%= @sts[i].switch_name %>";
sts1_array[i][1] = "<%= @sts[i].port %>";
sts1_array[i][2] = "<%= @sts[i].next_hop_name %>";
++i;
<% end %>
var kk = sts1_array[0];
//把sts1_array搞成s的关系表放入all_array
i = 0;
j = 0;
k = 0;
for(i = 0; i < sts_size; ++i)
{
if(sts1_used[i] == 0)
{
var x1 = sts1_array[i];
var x2id = 0;
for(j = i+1; j < sts_size; ++j)
{
var x2 = sts1_array[j];
x2id = j;
if(x1[0] == x2[2] && x1[2] == x2[0])
{
sts1_used[i] = 1;
sts1_used[j] = 1;
break;
}
}
all_array[k][0] = x1[0];
all_array[k][1] = x1[0] + ":" + x1[1] + " to " + sts1_array[x2id][0] + ":" + sts1_array[x2id][1];
all_array[k][2] = x1[2];
++k;
}
}
//对all_array排序
all_array.sort(function(a,b)
{
if(a[0] > b[0])return 1;
else if(a[0] == b[0])return a[2]>b[2]?1:-1;
else return -1;
});
//把s放入hashtables里
var hashTable = new Object();
var ids = [];
var idnum = 0;
for(i = 0; i < sts_size/2; ++i)
{
var x1 = all_array[i];
if(x1[0] in hashTable){}
else
{
hashTable[x1[0]] = idnum++;
ids.push(x1[0]);
}
if(x1[2] in hashTable){continue;}
else
{
hashTable[x1[2]] = idnum++;
ids.push(x1[2]);
}
}
//把vts表导成一个二维数组放入all_array
for(i = sts_size/2; i < vts_size + sts_size/2; ++i)
{
all_array[i] = new Array();
}
<% for i in 0..vts_size-1 do %>
all_array[k][0] = "<%= @vts[i].vm_name %>";
all_array[k][2] = "<%= @vts[i].switch_name %>";
all_array[k][1] = all_array[k][2] + ":<%= @vts[i].port %> to " + all_array[k][0];
//把vm放入hashtables里
if(all_array[k][0] in hashTable){}
else
{
hashTable[all_array[k][0]] = idnum++;
ids.push(all_array[k][0]);
}
++k;
<% end %>
//把stvs表放入all_array
for(i = vts_size + sts_size/2; i < vts_size + sts_size/2 + stvs_size; ++i)
{
all_array[i] = new Array();
}
var hashTable2 = new Object();
<% for i in 0..stvs_size-1 do %>
all_array[k][0] = "<%= @stvs[i].switch %>";
all_array[k][1] = "<%= @stvs[i].type_s %>";
hashTable2[all_array[k][0]] = all_array[k][1];
++k;
<% end %>
//生成nodes
all_size = sts_size/2 + vts_size;
for(i = 0;i < idnum - vts_size; ++i)
{
var node1 =
{
"name": ids[i],
"type": "circle",
"switch_type": hashTable2[ids[i]]
};
nodes.push(node1);
}
for(i = idnum - vts_size;i < idnum; ++i)
{
var node1 =
{
"name": ids[i],
"type": "rect",
"switch_type": "rect"
};
nodes.push(node1);
}
//alert(nodes[1].name);
//生成edges 关系都在all_array中
for(i = 0 ; i < all_size; ++i)
{
var ss = hashTable[all_array[i][0]];
var tt = hashTable[all_array[i][2]];
var desc = all_array[i][1];
var edges1 =
{
"source": ss,
"target": tt,
"des": desc
};
edges.push(edges1);
}
//下面开始画图
var color = d3.scale.category20();
var svg = d3.select("body")
.append("svg")
.attr("width", w)
.attr("height", h);
var force2 = d3.layout.force()
.nodes(nodes)
.links(edges)
.size([w, h])
.linkDistance([130])
.charge([-2000])
.gravity(0.15);
force2.start();
var stroke_color = "black";
var stroke_width = "0.5";
var touch_stroke_color = "#9F5FBF";//紫色
var touch_stroke_width = "1";
var switch_color = "#FF3420"//红
var vswitch_color = "#7FFF00";//绿
var vm_color = "#1E90FF";//蓝
//edges
var edges2 = svg.selectAll("line")
.data(edges)
.enter()
.append("line")
.style("stroke", "#ccc")
.style("stroke-width", 2)
.call(force2.drag);
//link
var link2 = svg.selectAll("link");
link2 = link2.data(edges);
var linkEnter2 = link2.enter()
.append("g")
.attr("class","link")
.call(force2.drag);
linkEnter2.append("text")
.attr("dy", ".35em")
.text(function(d){ return d.des; });
//node
var node2 = svg.selectAll("node");
node2 = node2.data(nodes);
var nodeEnter2 = node2.enter()
.append("g")
.attr("class", "node")
.call(force2.drag);
nodeEnter2.append("circle")
.attr("r", function(d)
{
if(d.type == "circle") return 10;
else return 0;
})
.style("fill", function(d, i)
{
if(d.type == "circle")
{
if(d.switch_type == "1") return switch_color; else if(d.switch_type == "2") return vswitch_color;}
else if(d.type == "rect"){return vm_color;}
})
.on("mouseover", function(x,i) //鼠标移动到一个节点上时，将其及与其邻接的节点突出显示
{
node2.style("stroke",function(d) { if(d.index == x.index)return touch_stroke_color; })
.style("stroke-width", function(d) { if(d.index == x.index)return touch_stroke_width; });
link2.style("stroke", function(d) { if(d.source.index == x.index || d.target.index == x.index) return touch_stroke_color; })
.style("stroke-width", function(d) { if(d.source.index == x.index || d.target.index == x.index) return touch_stroke_width; });
svg.selectAll("text")
.style("fill",function(d) { if(d.index == x.index) return touch_stroke_color; })
.style("fill",function(d) { if(d.source.index == x.index || d.target.index == x.index) return touch_stroke_color; });
})
.on("mouseout", function() //鼠标离开时还原
{
node2.style("stroke-width","0");
node2.style("stroke", stroke_color);
link2.style("stroke", stroke_color);
link2.style("stroke-width","0");
svg.selectAll("text").style("fill","black");
});
nodeEnter2.append("rect")
.attr("width",function(d)
{
if(d.type == "rect") return 20;
else return 0;
})
.attr("height",function(d)
{
if(d.type == "rect") return 20;
else return 0;
})
.style("fill", function(d, i)
{
if(d.type == "circle")
{
if(d.switch_type == "1") return switch_color;
else if(d.switch_type == "2") return vswitch_color;
}
else if(d.type == "rect")
{
return vm_color;
}
})
.on("mouseover", function(x,i) //鼠标移动到一个节点上时，将其及与其邻接的节点突出显示
{
node2.style("stroke",function(d) { if(d.index == x.index)return touch_stroke_color; })
.style("stroke-width", function(d) { if(d.index == x.index)return touch_stroke_width; });
link2.style("stroke", function(d) { if(d.source.index == x.index || d.target.index == x.index) return touch_stroke_color; })
.style("stroke-width", function(d) { if(d.source.index == x.index || d.target.index == x.index) return touch_stroke_width; });
svg.selectAll("text")
.style("fill",function(d) { if(d.index == x.index) return touch_stroke_color; })
.style("fill",function(d) { if(d.source.index == x.index || d.target.index == x.index) return touch_stroke_color; });
})
.on("mouseout", function() //鼠标离开时还原
{
node2.style("stroke-width","0");
node2.style("stroke", stroke_color);
link2.style("stroke", stroke_color);
link2.style("stroke-width","0");
svg.selectAll("text").style("fill","black");
});
nodeEnter2.append("text")
.attr("dy", ".35em")
.text(function(d) { return d.name; })
.on("mouseover", function(x,i) //鼠标移动到一个节点上时，将其及与其邻接的节点突出显示
{
node2.style("stroke",function(d) { if(d.index == x.index)return touch_stroke_color; })
.style("stroke-width", function(d) { if(d.index == x.index)return touch_stroke_width; });
link2.style("stroke", function(d) { if(d.source.index == x.index || d.target.index == x.index) return touch_stroke_color; })
.style("stroke-width", function(d) { if(d.source.index == x.index || d.target.index == x.index) return touch_stroke_width; });
svg.selectAll("text")
.style("fill",function(d) { if(d.index == x.index) return touch_stroke_color; })
.style("fill",function(d) { if(d.source.index == x.index || d.target.index == x.index) return touch_stroke_color; });
})
.on("mouseout", function() //鼠标离开时还原
{
node2.style("stroke-width","0");
node2.style("stroke", stroke_color);
link2.style("stroke", stroke_color);
link2.style("stroke-width","0");
svg.selectAll("text").style("fill","black");
});
force2.on("tick", function()
{
edges2.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; });
link2.attr("transform", function(d) { return "translate(" + (d.source.x+d.target.x)/2 + "," + (d.source.y+d.target.y)/2 + ")"; });
node2.attr("transform", function(d)
{
if(d.type == "circle") return "translate(" + d.x + "," + d.y + ")";
else
{
var dx = parseFloat(d.x) - 10;
var dy = parseFloat(d.y) - 10;
return "translate(" + dx + "," + dy + ")";
}
});
});
</script>
</body>
最后移动鼠标就会高亮选择的地方
