Method appendTree

src/figtree/application/JSONTreeExporter.java:209–248

Prepare for writing a tree. If a taxa block exists and is suitable for tree, do nothing. If not, write a new taxa block. @param tree @param node @param builder

(RootedTree tree, Node node, StringBuilder builder, int indent)

     * @param builder
     */
    private void appendTree(RootedTree tree, Node node, StringBuilder builder, int indent) {
        builder.append("{\n");

        if (tree.isExternal(node)) {
            appendIndent(builder, indent + 1);
            appendTaxonName(tree.getTaxon(node), builder);
        } else {
            appendIndent(builder, indent + 1);
            builder.append("\"children\": [\n");
            java.util.List<Node> children = tree.getChildren(node);
            final int last = children.size() - 1;
            for (int i = 0; i < children.size(); i++) {
                appendIndent(builder, indent + 2);
                appendTree(tree, children.get(i), builder, indent + 2);
                builder.append(i == last ? "\n" : ",\n");
            }
            appendIndent(builder, indent + 1);
            builder.append("]");
        }

        Node parent = tree.getParent(node);
        if (parent != null) {
            if (tree.hasLengths()) {
                builder.append(",\n");
                appendIndent(builder, indent + 1);
                builder.append("\"length\": ").append(tree.getLength(node));
            }
        }

        builder.append(",\n");
        appendIndent(builder, indent + 1);
        builder.append("\"height\": ").append(tree.getHeight(node));

        appendAttributes(node, builder, indent + 1);

        builder.append("\n");

        appendIndent(builder, indent);
        builder.append("}");
    }

    public static double roundDouble(double value, int decimalPlace) {
        double power_of_ten = 1;