public void createNodes(Graph graph, double[][] coordinates) {
nodeArray = new ArrayList<>();
double radius = graph.getNumberOfNodes() < 25 ? 100 / graph.getNumberOfNodes() : 4;
for (int i = 0; i < coordinates.length; i++) {
Circle nodeI = new Circle(radius);
nodeI.setTranslateX(coordinates[i][0]);
nodeI.setTranslateY(coordinates[i][1]);
Tooltip tip =
new Tooltip("node number " + (i + 1) + ", \"" + root.sequence.getText().charAt(i) + "\"");
Tooltip.install(nodeI, tip);
nodeI.setId(root.sequence.getText().substring(i, i + 1));
Timeline timeline = new Timeline();
nodeI.setOnMouseDragged(
event -> {
nodeI.setTranslateX(event.getSceneX() - root.nodes.getLayoutX());
nodeI.setTranslateY(event.getSceneY() - root.nodes.getLayoutY());
});
final int finalI = i;
nodeI.setOnMouseReleased(
event -> {
double[][] newCoordinates =
SpringEmbedder.computeSpringEmbedding(
100, graph.getNumberOfNodes(), graph.getEdges(), null);
SpringEmbedder.centerCoordinates(
newCoordinates,
0,
(int) root.getWidth(),
20,
(int) (root.getHeight() - root.vbox.getHeight() * 1.5));
timeline
.getKeyFrames()
.add(
new KeyFrame(
Duration.millis(200),
new KeyValue(nodeI.translateXProperty(), coordinates[finalI][0])));
timeline
.getKeyFrames()
.add(
new KeyFrame(
Duration.millis(200),
new KeyValue(nodeI.translateYProperty(), coordinates[finalI][1])));
timeline.play();
});
nodeI.disableProperty().bind(Bindings.not(root.animate.selectedProperty()));
root.nodes.getChildren().add(nodeI);
nodeArray.add(nodeI);
}
}
/**
* Drawing function for Circles and Lines
*
* @param drawPane
* @param coords Circle Coordinates
* @param edges array of edges
* @param startIndex NumberOfNodes
*/
private void drawShapes(Pane drawPane, double[][] coords, int[][] edges, int startIndex) {
// clear previous pane
drawPane.getChildren().clear();
circleList = new ArrayList<>();
// generate Circles
for (int i = 0; i < coords.length; i++) {
Circle currentCircle = new Circle(coords[i][0], coords[i][1], nodeSize, Color.BLACK);
String toolTipText = "Node " + Integer.toString(i + 1);
// expand toolTip text with nucleotide and Circle color, if possible
if (sequenceField.getText().length() > i) {
toolTipText += ": " + sequenceField.getText().charAt(i);
currentCircle.setFill(getNodeColor(sequenceField.getText().charAt(i)));
}
Tooltip.install(currentCircle, new Tooltip(toolTipText));
if (isAnimated) {
currentCircle.setOnMousePressed(circleOnMousePressedEventHandler);
currentCircle.setOnMouseDragged(circleOnMouseDraggedEventHandler);
currentCircle.setOnMouseReleased(circleOnMouseReleasedEventHandler);
}
circleList.add(currentCircle);
}
// generate basic Lines
ArrayList<Line> lineList = new ArrayList<>();
for (int i = 0; i < circleList.size() - 1; i++) {
Line line = new Line();
line.setStroke(Color.BLACK);
line.setFill(Color.BLACK);
Circle circle1 = circleList.get(i);
Circle circle2 = circleList.get(i + 1);
// bind ends of line:
line.startXProperty().bind(circle1.centerXProperty().add(circle1.translateXProperty()));
line.startYProperty().bind(circle1.centerYProperty().add(circle1.translateYProperty()));
line.endXProperty().bind(circle2.centerXProperty().add(circle2.translateXProperty()));
line.endYProperty().bind(circle2.centerYProperty().add(circle2.translateYProperty()));
lineList.add(line);
}
// generate edges
for (int i = startIndex - 1; i < edges.length; i++) {
Line line = new Line();
line.setStroke(Color.ORANGE);
Circle circle1 = circleList.get(edges[i][0]);
Circle circle2 = circleList.get(edges[i][1]);
line.startXProperty().bind(circle1.centerXProperty().add(circle1.translateXProperty()));
line.startYProperty().bind(circle1.centerYProperty().add(circle1.translateYProperty()));
line.endXProperty().bind(circle2.centerXProperty().add(circle2.translateXProperty()));
line.endYProperty().bind(circle2.centerYProperty().add(circle2.translateYProperty()));
lineList.add(line);
}
drawPane.getChildren().addAll(lineList);
drawPane.getChildren().addAll(circleList);
}