How to Navigate Scans Using Touch Gestures
Understanding Touch Controls in 3DICOM Mobile
The 3DICOM Mobile App uses simple, familiar touch gestures so you can explore your medical scans in both 2D and 3D views. These gestures let you move, rotate, and zoom into your scans for a closer look at important details.
To learn more about the different views you can navigate with these gestures, see our general help guide Understanding 2D & 3D Views.
2D View Gestures
Scroll Through Slices
Swipe up or down with one finger to move between 2D image slices along the selected anatomical plane.
Pan (Move the Image)
Drag two fingers together across the screen to reposition the scan on the screen without rotating or zooming.
Zoom In/Out
Pinch two fingers together to zoom out; spread them apart to zoom in to enlarge or reduce the view of the scan.
Tip: Use slow, steady movements for precise control. Combine gestures (e.g., zoom and pan) to position scans exactly how you need them.3D View Gestures
Free Rotation
Drag one finger across the screen in any direction to rotate the 3D model freely, following the path of your finger, so you can view the scan from any angle.
Pan (Move the Model)
Drag two fingers together across the screen to reposition the 3D model on the screen without rotating or zooming.
Zoom In/Out
Pinch two fingers together to zoom out; spread them apart to zoom in, to enlarge or reduce the 3D model view.
Tip: Use slow, steady movements for precise control. Combine gestures (e.g., zoom and pan) to position scans exactly how you need them.FAQs & Troubleshooting
Find answers to some of the most frequently asked questions about using touch gestures on 3DICOM Mobile below.
Why can’t I move the scan with one finger?
In 2D view, one finger is used to scroll through slices or rotate (if enabled). To avoid accidental movements, repositioning the scan requires a two-finger drag gesture.
Are gestures different between 2D and 3D views?
What’s the difference between Rotate and Pan in 3D view?
Can I combine gestures?
Are the gestures the same on iOS and Android?
What should I do if the scan seems to disappear off-screen?
CONCLUSION
Mastering these touch gestures makes it easy to navigate your scans in both 2D and 3D views. Whether you’re zooming in for detail, rotating a 3D model, or scrolling through slices, these simple actions give you full control over how you explore your medical data. With a little practice, you’ll be moving through scans quickly and confidently.
To learn more about the different views you can navigate with these gestures, see Understanding 2D & 3D Views.
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