JavaFX 8 - Printing 3d scene

[Scott Palmer]

I suggest you file a bug with a reproducible test case at
https://javafx-jira.kenai.com/
If the 3D node will render to an image, then it should also be printable
directly.

Scott

On Mon, Nov 10, 2014 at 8:16 PM, Cheryl Long <clong9993 at gmail.com> wrote:

> I posted the following question on Stack Overflow and it was suggested that
> I ask it here.
>
> I am trying to use the JavaFX 8 printing API and I am running into problems
> when I try to print any scene/node that contains any sort of 3D content. I
> have been searching both here and other sites for an answer and haven't
> been able to find anything to help.
>
> If the node contains only 2D content, the scene will print on my selected
> printer without issue. But if I add a single 3D object to the scene, the
> whole thing fails to print - without any error but without any content. If
> I am printing to a printer, a blank page is "printed" and if I am printing
> to a document printer, I get an empty document.
>
> I have tried using the AWT printing mechanism to convert the node to a
> WritableImage and then to a BufferedImage for printing. This works in that
> it prints but we aren't happy with the quality that we get from it.
>
> My print caller is fairly standard at this stage -
>
> private void doPrintFX() {
>     Printer printer = Printer.getDefaultPrinter();
>     PageLayout pageLayout = printer.createPageLayout(
>             Paper.A3, PageOrientation.LANDSCAPE,
> Printer.MarginType.DEFAULT);
>
>     final double scaleFactor =
> computeScaleFactor(pageLayout.getPrintableWidth(),
>             pageLayout.getPrintableHeight(),
>             sceneNode.getBoundsInParent().getWidth(),
>             sceneNode.getBoundsInParent().getHeight());
>     if (scaleFactor != 0) {
>         sceneNode.getTransforms().add(new Scale(scaleFactor, scaleFactor));
>     }
>
>     PrinterJob job = PrinterJob.createPrinterJob(printer);
>     if (job != null) {
>         System.out.println("Printing to " + job.getPrinter().getName());
>         boolean success = job.printPage(pageLayout, sceneNode);
>         if (success) {
>             job.endJob();
>         }
>     }}
>
> I have scaled back the node to be a very simple scene containing a couple
> of rectangles and a cylinder. The code I am currently using is:
>
>     Cylinder cylinder = new Cylinder(50, 150);
>     cylinder.setLayoutX(250);
>     cylinder.setLayoutY(100);
>     canvas.getDrawingPane().getChildren().add(cylinder);
>
>     Rectangle item = new Rectangle(50, 50, 100, 50);
>     item.setStroke(Color.BLACK);
>     item.setFill(null);
>     canvas.getDrawingPane().getChildren().add(item);
>
>     item = new Rectangle(75, 75, 100, 50);
>     item.setStroke(Color.BLACK);
>     item.setFill(null);
>     canvas.getDrawingPane().getChildren().add(item);
>
> The canvas.getDrawingPane is a Pane and is what is being sent to the print
> function.
>
> Can anyone advise what might be wrong with what I am doing? Does the JavaFX
> print API support printing of 3D nodes?
>
> Thank you.
>