topic Re: Pinch Zoom and touch rotate not working on linux using java sdk in Java Maps SDK Questions

Pinch Zoom and touch rotate not working on linux using java sdk

ZabihMalik — Mon, 27 Nov 2023 14:54:31 GMT

Re: Pinch Zoom and touch rotate not working on linux using java sdk

MarkBaird — Mon, 27 Nov 2023 17:34:10 GMT

I'll need some more information to help with this. Can you tell me more about your app and machine setup. I'm looking for information like this, but the more you can tell me the better:

- What version of the Maps SDK are you using?

- What Linux type and version are you using?

- Do any touch operations work in your app or OS? If nothing works then you might be missing drivers.

Re: Pinch Zoom and touch rotate not working on linux using java sdk

ZabihMalik — Tue, 28 Nov 2023 14:51:13 GMT

Hi MarkBaird.

Thanks for the reply. i can answer all you questions.

we have purchase the license and try to use java map sdk 200.2 for linux.

1. Maps SDK v 200.2

2. Redhat enterprise Linux 9.

3. all touch drivers are installed, touch working in linux environement but when i run the application its just only pan and touch (like mouse click). it dont pinch zoom, or touch rotate.

i run same code project on windows operating system, its work fine. all the touch operations, like press, pinch zoom and rotate works.

i tried this code on ubuntu 20.04, 22 and even 23.10 but still the same issue.

We have build a huge project on this map sdk, we was unable to test this because hardware we procure was late , when it came we got this issue.

if can help please.. thanks in advance.

Re: Pinch Zoom and touch rotate not working on linux using java sdk

ZabihMalik — Tue, 28 Nov 2023 14:56:20 GMT

Even in SceneView only touch pan is working nothing else.

Re: Pinch Zoom and touch rotate not working on linux using java sdk

ZabihMalik — Tue, 28 Nov 2023 15:07:57 GMT

can you please also test this is Map SDK 100.13 as well. as our project is build on this sdk.

Re: Pinch Zoom and touch rotate not working on linux using java sdk

MarkBaird — Tue, 28 Nov 2023 16:56:32 GMT

I've managed to reproduce this on an Ubuntu 20 machine I've configured with a touch screen.

I'm not sure exactly where the issue is just yet, but I can see it works fine on Windows so theoretically it shouldn't be any different on Linux. I'll try to narrow it down. My thoughts are it could be one of the following:

- Multi touch support in the drivers for Linux

- A bug in JavaFX

- A bug in our API

Re: Pinch Zoom and touch rotate not working on linux using java sdk

ZabihMalik — Wed, 29 Nov 2023 18:46:41 GMT

i have tried on both javafx 17 and javafx 21, but still no success.

Re: Pinch Zoom and touch rotate not working on linux using java sdk

ZabihMalik — Wed, 29 Nov 2023 18:47:56 GMT

Multi touch supported in the drivers for Linux, as pinch zoom is working in native image viewer application of linux.

Re: Pinch Zoom and touch rotate not working on linux using java sdk

ZabihMalik — Wed, 29 Nov 2023 18:49:37 GMT

please if can be resolved early, as our deployment to client is near. and without touch it is useless. thanks.

Re: Pinch Zoom and touch rotate not working on linux using java sdk

MarkBaird — Wed, 29 Nov 2023 21:41:10 GMT

At the moment I'm suspecting this is a JavaFX issue. For us to zoom and rotate the map we need the JavaFX ZoomEvent and RotateEvent events to be triggered. Try adding the code below and see what you get.

For me on Windows, all 3 event types fire, but on Linux Zoom and Rotate are not firing. The code below adds console output for the mapView, but I've added this to other JavaFX controls such as a button and the events are just not coming in from JavaFX on Linux.

    mapView.addEventHandler(MouseEvent.ANY, event -> System.out.println(event.getEventType() + " " + event.isSynthesized()));
    mapView.addEventHandler(ZoomEvent.ANY, event -> System.out.println(event.getEventType()));
    mapView.addEventHandler(RotateEvent.ANY, event -> System.out.println(event.getEventType()));

Can you add the same events to a button or other JavaFX control to see if you have the same?

Re: Pinch Zoom and touch rotate not working on linux using java sdk

ZabihMalik — Thu, 30 Nov 2023 12:23:11 GMT

I have tested above code, javafx is not getting any zoom event, even touch event is also acting as mouse event. Like if you drag the mAp, event is mouse dragged instead of touch dragged.

Re: Pinch Zoom and touch rotate not working on linux using java sdk

MarkBaird — Thu, 30 Nov 2023 12:51:13 GMT

@ZabihMalik thanks for confirming this.

I'm currently putting together a reproducer showing the issue which I can show to someone from the JavaFX open source team. My reproducer uses just a JavaFX ImageView control - I've stripped this back to pure JavaFX.

The objective of JavaFX is that you can write code for Windows, Linux and Mac and expect very similar results. There will be some platform differences, but something like mouse and touch interactions I believe should be similar.

My experiences of JavaFX over the years has been pretty good; there were some releases recently to address app focus issues with macOS Sonoma but they were quickly addressed.

I'll share my test app but so far I'm seeing that RotateEvent and ZoomEvent work as follows:

- Windows touch screen - all fine

- macOS touch pad - all fine

- Linux Ubuntu - no events fired

Let's see what we find out... you need to appreciate that if this turns out to be a JavaFX bug I'm limited in what can be done to resolve this - you may need to push for them to fix it.

I'll report back when I have more info.

Re: Pinch Zoom and touch rotate not working on linux using java sdk

MarkBaird — Thu, 30 Nov 2023 15:04:42 GMT

This is the reproducer app I've created which uses only JavaFX controls.

If you clone it you hopefully should experience the same as I have.

Re: Pinch Zoom and touch rotate not working on linux using java sdk

MarkBaird — Tue, 05 Dec 2023 16:50:05 GMT

@ZabihMalik

I have raised this as a bug in JavaFX and it has just been accepted https://bugs.java.com/bugdatabase/view_bug?bug_id=JDK-8321291

They have managed to reproduce the bug on every version of JavaFX on Ubuntu and in the comments they are asking if it was ever implemented. Let's see what happens. Please note that this isn't something I can control.

In the meantime I'm aware you need to deliver a project where you are limited to single touch events. For zooming and panning had you considered having buttons to perform these operations?

Re: Pinch Zoom and touch rotate not working on linux using java sdk

MarkBaird — Thu, 07 Dec 2023 11:10:29 GMT

@ZabihMalik I've sent you a PM about this

Re: Pinch Zoom and touch rotate not working on linux using java sdk

ZabihMalik — Mon, 11 Dec 2023 13:10:45 GMT

Thanks Marks.

I am thinking on adding button, but it will increase the steps to zoom to particular place, and also not very much optimised for SceneView as mostly our project is based on 3D SceneView.