111 lines
4.2 KiB
JavaScript
111 lines
4.2 KiB
JavaScript
import React, {useState} from 'react';
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// import cytoscape from 'cytoscape';
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// import cola from 'cytoscape-cola';
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import CytoscapeComponent from "react-cytoscapejs";
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const layout = {
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name: 'circle',
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fit: true, // whether to fit the viewport to the graph
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padding: 32, // the padding on fit
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boundingBox: undefined, // constrain layout bounds; { x1, y1, x2, y2 } or { x1, y1, w, h }
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avoidOverlap: true, // prevents node overlap, may overflow boundingBox and radius if not enough space
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nodeDimensionsIncludeLabels: false, // Excludes the label when calculating node bounding boxes for the layout algorithm
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spacingFactor: 0.9, // Applies a multiplicative factor (>0) to expand or compress the overall area that the nodes take up
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radius: 150, // the radius of the circle
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startAngle: -2 / 4 * Math.PI, // where nodes start in radians
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//sweep: undefined, // how many radians should be between the first and last node (defaults to full circle)
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clockwise: true, // whether the layout should go clockwise (true) or counterclockwise/anticlockwise (false)
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sort: undefined, // a sorting function to order the nodes; e.g. function(a, b){ return a.data('weight') - b.data('weight') }
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animate: false, // whether to transition the node positions
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animationDuration: 500, // duration of animation in ms if enabled
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animationEasing: undefined, // easing of animation if enabled
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//animateFilter: function ( node, i ){ return true; }, // a function that determines whether the node should be animated. All nodes animated by default on animate enabled. Non-animated nodes are positioned immediately when the layout starts
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ready: undefined, // callback on layoutready
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stop: undefined, // callback on layoutstop
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transform: function (node, position) {
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return position;
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} // transform a given node position. Useful for changing flow direction in discrete layouts
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};
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const styleSheet = [{
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selector: "node",
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style: {
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"background-color": "#666",
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"font-size": "10px",
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"width": "20px",
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"height": "20px",
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"label":"data(label)"
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}
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}, {
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selector: "label",
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style: {"font-size": "12px"},
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},
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{
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selector: 'edge',
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style: {
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'width': 2,
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"height": 200,
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'line-color': '#9a9a9a',
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'target-arrow-color': '#ccc',
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// 'target-arrow-shape': 'triangle',
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'curve-style': 'straight'
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}
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}];
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function Graph({graph}) {
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const [width, setWith] = useState("400px");
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const [height, setHeight] = useState("400px");
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const [graphData, setGraphData] = useState({
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nodes: graph.nodes,
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edges: graph.edges
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});
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let myCyRef;
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return (
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<>
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<div>
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<h3>Links to this notes</h3>
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<div
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style={{
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border: "1px solid",
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backgroundColor: "#f5f6fe"
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}}
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>
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<CytoscapeComponent
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elements={CytoscapeComponent.normalizeElements(graphData)}
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// pan={{ x: 200, y: 200 }}
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style={{width: width, height: height}}
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zoomingEnabled={true}
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maxZoom={2}
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minZoom={0.5}
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autounselectify={false}
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boxSelectionEnabled={true}
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layout={layout}
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stylesheet={styleSheet}
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cy={cy => {
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myCyRef = cy;
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console.log("EVT", cy);
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cy.on("tap", "node", evt => {
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var node = evt.target;
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let nodeData = node.data();
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if (typeof nodeData.id === 'string') {
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const routerPath = '/note/' + node.data().id
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router.push(routerPath)
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}
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});
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}}
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/>
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</div>
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</div>
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</>
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);
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}
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export default Graph; |