create-edge behavior

[WolfVerrron18]

How to implement port-based create-edge behavior in version 5?

[petercat-assistant[bot]]

To implement port-based create-edge behavior in AntV G6 version 5, you can follow these steps:

1. Define Ports on Nodes: First, you need to define ports on the nodes where edges can be connected. You can specify the ports in the node's configuration.

2. Custom Edge Creation: Implement a custom behavior for creating edges. You can use the create-edge behavior and customize it to handle port connections.

3. Port Connection Logic: Ensure that the logic for connecting edges to specific ports is implemented. This involves handling the start and end of edge creation to attach to the correct ports on the nodes.

Here's a basic example to illustrate the concept:

import G6 from '@antv/g6';

// Define the graph
const graph = new G6.Graph({
  container: 'mountNode',
  width: 800,
  height: 600,
  modes: {
    default: ['drag-node', 'create-edge'],
  },
  defaultNode: {
    type: 'rect',
    size: [100, 50],
    style: {
      fill: '#9FD5FF',
      stroke: '#5B8FF9',
    },
    ports: {
      items: [
        { id: 'port1', group: 'top' },
        { id: 'port2', group: 'bottom' },
      ],
    },
  },
  defaultEdge: {
    type: 'line',
    style: {
      stroke: '#F6BD16',
    },
  },
});

// Add nodes and edges
graph.data({
  nodes: [
    { id: 'node1', x: 100, y: 200 },
    { id: 'node2', x: 300, y: 200 },
  ],
  edges: [],
});

graph.render();

// Customize create-edge behavior
graph.on('aftercreateedge', (ev) => {
  const { edge } = ev;
  const sourcePortId = edge.getSourcePortId();
  const targetPortId = edge.getTargetPortId();
  console.log(`Edge created from port ${sourcePortId} to port ${targetPortId}`);
});

In this example, nodes are defined with ports, and a custom behavior is added to handle edge creation between specific ports. You can further customize the behavior to suit your specific requirements.

If you need more detailed guidance or encounter any issues, feel free to ask!

🪧 Tips

For further assistance, please describe your question in the comments and @petercat-assistant to start a conversation with me.

[WolfVerrron18]

TypeError: Cannot destructure property 'data' of 'data' as it is undefined.
at cloneElementData

Why do I get this error when trying to create an edge by pulling an edge from one port to another port

@petercat-assistant

[petercat-assistant[bot]]

The error you're encountering, TypeError: Cannot destructure property 'data' of 'data' as it is undefined, typically indicates that the code is attempting to destructure an object that is undefined. This can happen if the function or method expecting the data is not receiving the expected input.

Here are a few steps you can take to troubleshoot and resolve this issue:

1. Check the Event Data: Ensure that the event data being passed to the function is correctly defined. If you're using an event handler, make sure the event object contains the necessary data.

2. Verify the Graph Configuration: Double-check your graph configuration to ensure that nodes and ports are correctly defined. If the nodes or ports are not properly set up, the event data might be missing or incomplete.

3. Debugging: Add console logs to inspect the data being passed to the function where the error occurs. This can help you identify if and where the data is becoming undefined.

4. Review the Edge Creation Logic: Make sure that the logic for creating edges is correctly implemented. If you're using a custom behavior, ensure that it correctly handles the start and end of edge creation.

5. Check for Updates: Ensure that you are using the latest version of G6 and that your code is compatible with it. Sometimes, updates might fix underlying issues.

If you can provide more context or code snippets where the error occurs, I can help you further pinpoint the issue.

🪧 Tips

For further assistance, please describe your question in the comments and @petercat-assistant to start a conversation with me.