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"""
人物关系图谱可视化工具
"""
import json
from typing import Dict, List
def visualize_ascii(graph: RelationGraph):
entities = graph.get_all_entities()
for entity in entities:
relations = graph.get_relations(entity)
if not relations:
continue
print(f"┌─ {entity}")
for i, (rel_type, targets) in enumerate(relations.items()):
is_last = (i == len(relations) - 1)
prefix = "└─" if is_last else "├─"
for j, target in enumerate(targets):
is_last_target = (j == len(targets) - 1)
if j == 0:
print(f"│ {prefix} [{rel_type}] → {target}")
else:
continuation = " " if is_last else "│ "
print(f"│ {continuation} └─ {target}")
print("│")
print("=" * 60 + "\n")
def save_graphviz(graph: RelationGraph, output_file: str = "relation_graph.png"):
"""
使用 Graphviz 生成关系图谱图片
"""
try:
from graphviz import Digraph
except ImportError:
print("Graphviz not installed. Install with: pip install graphviz")
return
dot = Digraph(comment='人物关系图谱')
dot.attr(rankdir='LR')
dot.attr('node', shape='circle', style='filled', fillcolor='lightblue')
entities = graph.get_all_entities()
for entity in entities:
dot.node(entity, entity)
for head in graph.graph:
for relation in graph.graph[head]:
for tail in graph.graph[head][relation]:
dot.edge(head, tail, label=relation)
dot.render(output_file.replace('.png', ''), format='png', cleanup=True)
def generate_html_visualization(graph: RelationGraph, output_file: str = "relation_graph.html"):
"""
生成交互式网页可视化（使用 Cytoscape.js）
"""
cytoscape_data = graph.export_cytoscape()
html_template = """
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>人物关系图谱</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape/3.23.0/cytoscape.min.js"></script>
<style>
body {
font-family: Arial, sans-serif;
margin: 0;
padding: 20px;
background: #f5f5f5;
}
h1 {
text-align: center;
color: #333;
}
#cy {
width: 100%;
height: 600px;
border: 2px solid #ddd;
background: white;
border-radius: 8px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.info {
margin-top: 20px;
padding: 15px;
background: white;
border-radius: 8px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.legend {
display: flex;
gap: 20px;
justify-content: center;
margin-top: 10px;
}
.legend-item {
padding: 5px 10px;
border-radius: 4px;
font-size: 14px;
}
</style>
</head>
<body>
<h1>人物关系图谱</h1>
<div id="cy"></div>
<script>
var cy = cytoscape({
container: document.getElementById('cy'),
elements: """ + json.dumps(cytoscape_data, ensure_ascii=False) + """,
style: [
{
selector: 'node',
style: {
'background-color': '#69b3a2',
'label': 'data(label)',
'color': '#fff',
'text-valign': 'center',
'text-halign': 'center',
'font-size': '12px',
'width': 60,
'height': 60,
'border-width': 2,
'border-color': '#4a7c8a'
}
},
{
selector: 'edge',
style: {
'width': 2,
'line-color': '#ccc',
'target-arrow-color': '#ccc',
'target-arrow-shape': 'triangle',
'curve-style': 'bezier',
'label': 'data(label)',
'font-size': '10px',
'text-rotation': 'autorotate',
'text-margin-y': -10
}
},
{
selector: 'node:selected',
style: {
'background-color': '#ff6b6b',
'border-width': 4
}
},
{
selector: 'edge:selected',
style: {
'line-color': '#ff6b6b',
'target-arrow-color': '#ff6b6b',
'width': 4
}
}
],
layout: {
name: 'cose', // 力导向布局
animate: true,
animationDuration: 500,
nodeRepulsion: 8000,
idealEdgeLength: 100,
edgeElasticity: 100,
gravity: 1
}
});
// 点击节点高亮相关边
cy.on('tap', 'node', function(evt){
var node = evt.target;
var neighbors = node.neighborhood();
cy.elements().style('opacity', 0.3);
node.style('opacity', 1);
neighbors.style('opacity', 1);
});
// 点击空白处恢复
cy.on('tap', function(evt){
if(evt.target === cy){
cy.elements().style('opacity', 1);
}
});
</script>
</body>
</html>
"""
with open(output_file, 'w', encoding='utf-8') as f:
f.write(html_template)
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