#611 Android: Pinch rotate zooms out

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open-works-for-me
nobody
Android (41)
6
2012-08-31
2012-08-21
sk750
No

When doing pinch rotate on Android almost always this is recognized as zoom out as well.
(Experienced in nightly build from Sunday on HTC Wildfire S and in nightly build from today on HTC Nexus one).

This definitely worked about one or two weeks ago better.

To reproduce it's helpful to set an on-screen-destination so you'll see by the length of the red destination line, how far the map is zoomed out.

Discussion

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  • sk750
    sk750
    2012-08-21

    Btw: Had to Stop GPS for Pinch rotating as otherwise the compass comes in and changes rotation immediately to compass direction. I think when manually rotating the compass direction should not be taken for a while, just like with manual panning where the gps position is not used for map centering for a while.

     
  • Jyrki Kuoppala
    Jyrki Kuoppala
    2012-08-21

    Unable to repeat this on the Note or on a tablet. Behaves as expected, zoom distance changes if I change how wide fingers are apart, but not otherwise.

     
  • sk750
    sk750
    2012-08-21

    Maybe try on the mini, display size might make a difference on how sensible this is.

     
  • Jyrki Kuoppala
    Jyrki Kuoppala
    2012-08-21

    Can't repeat this on the Mini either.

    But anyway, I think disabling zooming when rotation is happening would be a good idea. If there isn't a feature request for this, should be added.

     
  • sk750
    sk750
    2012-08-21

    Guessing I just started to do the gesture wrong, placed one finger at a fixed point and rotated the other around. But I guess the correct gesture is done with both fingers rotating around a center. If so, you can close this report as invalid.

     
  • Jyrki Kuoppala
    Jyrki Kuoppala
    2012-08-21

    I have no idea if there's a "correct" way to do multi-touch rotate - but your first way of doing it with one finger at a fixed point sounds as good as any to me, and should work, too, in my opinion; if it doesn't, there's a bug to fixed. I have usually done it with two fingers rotating around a center, but could not achieve zooming out with your way of doing it either. However did manage to accidentally zoom in, not sure if this is related.

     
  • Jyrki Kuoppala
    Jyrki Kuoppala
    2012-08-21

    • status: open --> open-works-for-me
     
  • sk750
    sk750
    2012-08-22

    Tried the pinch-zoom on Nexus on with two fingers moving - still zoomed out and also seemed to pause rotating for about > 90 degrees until it continued to rotate. Hard to describe and probably hard to fix if you can't repeat this.

    Compass translates correct for the 3 possible screen orientations (portrait-up, landscape-up, landscape doiwn).

     
  • Jyrki Kuoppala
    Jyrki Kuoppala
    2012-08-22

    With some touch panels, there are failures if two fingers touch the same vertical line, then something bogus is reported as the place of touch. A way to test this is to load some multitouch test program from the market and see if the touches are repoted incorrectly.

    Adding the zoom lock mentioned will remove the non-intentional zoom issue, but won't solve the part where rotation is paused for >90 degrees after having started.

     
  • Jyrki Kuoppala
    Jyrki Kuoppala
    2012-08-22

    Zooming stops now when rotation has started. Please check if you can if this fixes your issue.

     
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