我想在现有图形中添加新顶点。 所以我创建了一个新的单元格,我试图重新连接我的边缘,但我的图形没有更新(边缘)
这是我的代码:
mxGraph graph = editor.getGraph();
mxCell selectedElt = (mxCell) graph.getSelectionCell();
Object cells[] = { selectedElt };
if (selectedElt.isEdge()) {
// cell is an edge, so we have source and target
System.out.println("Source : " + selectedElt.getSource().getId());
System.out.println("Target : " + selectedElt.getTarget().getId());
} else {
// edge before
mxCell beforeEdge = (mxCell) selectedElt.getEdgeAt(0);
// edge after
mxCell afterEdge = (mxCell) selectedElt.getEdgeAt(1);
// moving down the selected cell
graph.moveCells(cells, 0, 50);
// create a new vertex
GraphStyle graphStyle = new GraphStyle(graph);
mxCell cell = new mxCell("AAM",
new mxGeometry(selectedElt.getGeometry().getX(), selectedElt.getGeometry().getY(), 80, 50),
graphStyle.getCalculatorStyleName());
cell.setVertex(true);
beforeEdge.setTarget(cell);
graph.insertEdge(graph.getDefaultParent(), "e33", "", cell, selectedElt);
graph.addCell(cell);
graph.repaint();
}
答案 0 :(得分:0)
而不是致电beforeEdge.setTarget(cell)
尝试cell.insertEdge(beforeEdge, false)
。这将从前一个顶点移除Edge并将其添加到新顶点。
顺便说一下。我建议将你的代码包装成try-finally块,如下所示:
graph.getModel().beginUpdate();
try {
// do all the graph related stuff
}
finally {
graph.getModel().endUpdate();
}