GMSMapView zoom around a fixed point on the screen

Question

This code will displace a marker 100 pixels lower down on the screen:

CGPoint point = [myMapView.projection pointForCoordinate:marker.position];
point.y -= 100.0f;
GMSCameraUpdate *camera = [GMSCameraUpdate setTarget:[myMapView.projection coordinateForPoint:point]];
[myMapView animateWithCameraUpdate:camera];

I'd also like to zoom in at the same time. Can anyone help with offseting and zooming in the same animation - that is zooming around a displaced (non-centre) point on the screen. Thanks in advance.

where you need to zoom on coordinate position or point ? – CodeChanger Jun 29 '17 at 12:33 — CodeChanger, Jun 29 '17 at 12:33
a (non-centre) point on the screen. – Peter Jun 29 '17 at 14:34 — Peter, Jun 29 '17 at 14:34

score 0 · Answer 1 · answered Jun 29 '17 at 12:27

0

Instead use bellow code for zoomin mapview

 GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:@"12.234"
                                                        longitude:@"77.534"
                                                             zoom:15];

answered Jun 29 '17 at 12:27

Siva Sankar

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This moves the centre of the map to coordinate 12.234, 77.534 and then zooms based on that. I need to zoom based on a non-centre or offset point on the screen. – Peter Jun 29 '17 at 14:37

score 0 · Answer 2 · answered Aug 28 '18 at 15:11

0

I finally managed to do this by setting the GSMapView padding parameter, thereby offsetting the map's centre before doing the camera zoom.

answered Aug 28 '18 at 15:11

Peter

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GMSMapView zoom around a fixed point on the screen

2 Answers2