pyecharts桑基图link颜色设置
时间: 2023-10-09 16:17:44 浏览: 99
Pyecharts 的桑基图(Sankey)可以通过修改 `set_edge` 方法中的 `links` 参数来设置每个链接的颜色。具体的做法是,在 `set_edge` 方法中传入一个包含 `source`、`target` 和 `value` 三个元素的字典列表,再为每个链接添加一个 `color` 属性即可。
以下是一个示例代码:
```python
from pyecharts.charts import Sankey
nodes = [{"name": "A"}, {"name": "B"}, {"name": "C"}]
links = [
{"source": "A", "target": "B", "value": 10, "color": "blue"},
{"source": "B", "target": "C", "value": 5, "color": "red"},
{"source": "A", "target": "C", "value": 15, "color": "green"}
]
sankey = Sankey()
sankey.add("Sankey", nodes, links, linestyle_opt={"curve": 0.5, "opacity": 0.5})
sankey.set_edge(links)
sankey.render("sankey.html")
```
在上述代码中,我们通过将每个链接的 `color` 属性设置为不同的颜色,来实现桑基图中每个链接的颜色不同的效果。
相关问题
pyecharts桑基图边颜色设置
pyecharts桑基图(Sankey)的边颜色可以通过`set_edge_color()`方法来设置。该方法接受三个参数:
- source_node:源节点名称
- target_node:目标节点名称
- color:颜色值,支持十六进制和颜色名称
示例代码:
```python
from pyecharts import options as opts
from pyecharts.charts import Sankey
nodes = [
{"name": "A"},
{"name": "B"},
{"name": "C"}
]
links = [
{"source": "A", "target": "B", "value": 20},
{"source": "B", "target": "C", "value": 10},
{"source": "A", "target": "C", "value": 30}
]
sankey = (
Sankey()
.add("sankey", nodes, links, linestyle_opt=opts.LineStyleOpts(opacity=0.2, curve=0.5, color="#bbb"))
.set_global_opts(title_opts=opts.TitleOpts(title="Sankey"))
.set_series_opts(label_opts=opts.LabelOpts(font_size=12))
)
# 设置边颜色
sankey.set_edge_color("A", "B", "red")
sankey.set_edge_color("B", "C", "blue")
sankey.set_edge_color("A", "C", "green")
sankey.render("sankey.html")
```
运行以上代码,会生成一个名为`sankey.html`的HTML文件,打开即可看到结果。
pyecharts桑基图节点颜色
在pyecharts中,可以通过 `Node.color` 属性来设置桑基图节点的颜色。以下是一个简单的示例代码:
```python
from pyecharts import options as opts
from pyecharts.charts import Sankey
nodes = [
{"name": "A"},
{"name": "B"},
{"name": "C"},
{"name": "D"},
]
links = [
{"source": "A", "target": "B", "value": 10},
{"source": "B", "target": "C", "value": 15},
{"source": "C", "target": "D", "value": 20},
]
sankey = (
Sankey()
.add("sankey", nodes, links,
linestyle_opt=opts.LineStyleOpts(opacity=0.2, curve=0.5, color="source"),
label_opts=opts.LabelOpts(position="right", font_size=12),
node_gap=20, node_width=25,
)
.set_global_opts(title_opts=opts.TitleOpts(title="Basic Sankey Diagram"))
)
# 设置节点颜色
sankey.nodes[0].color = "#FF0000"
sankey.nodes[1].color = "#00FF00"
sankey.nodes[2].color = "#0000FF"
sankey.nodes[3].color = "#FF00FF"
sankey.render("sankey.html")
```
在上面的代码中,我们设置了每个节点的颜色,分别为红色、绿色、蓝色和紫色。可以根据实际需求调整节点颜色。