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GoogleMaps camera target in top left corner of map iOS since pod update


GoogleMaps camera target in top left corner of map iOS since pod update

By : Habib
Date : January 11 2021, 03:34 PM
this one helps. I found I was able to solve this problem by adding the map creation to ViewWillAppear as opposed to having it in the ViewDidLoad.
code :
 override func viewWillAppear(_ animated: Bool) {
    let ud = UserDefaults.standard
    let startingX = ud.double(forKey: "startingX")
    let startingY = ud.double(forKey: "startingY")

    let camera = GMSCameraPosition.camera(withLatitude: startingX, longitude: startingY, zoom: 18.0)
    googleMapView.camera = camera

    self.googleMapView.mapType = .hybrid

    self.googleMapView.settings.scrollGestures = true
    self.googleMapView.settings.rotateGestures = true
    self.googleMapView.settings.consumesGesturesInView = true
}


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Align the camera to make screen space origin at the bottom-left corner

Align the camera to make screen space origin at the bottom-left corner


By : Chinmay
Date : March 29 2020, 07:55 AM
Does that help In a 2D game, you have an X-axis and Y-axis. When increasing an object's X-value, you could say the object is going right. When increasing the Y-value, you could say the object is going up.
In a 3D game, there is another additional axis, the Z-axis. This makes it possible to gain 'depth' in games.
libGDX how do you draw on the top left corner of the screen when you are using a viewport and moving the camera

libGDX how do you draw on the top left corner of the screen when you are using a viewport and moving the camera


By : Globule Bleu
Date : March 29 2020, 07:55 AM
To fix the issue you can do Excellent question, I created a method to return a Vector3 which is relative to the screen position. I'm not sure if there is a built in way to do this or easier way but here is my code below. Good luck on your program me.
code :
public Vector3 relativeVector(float x, float y,OrthographicCamera c){
    return new Vector3(x+c.position.x-c.viewportWidth/2,y+c.position.y-c.viewportHeight/2,0);
}
How to Update or Change Camera Position between two Locations using GoogleMaps GMSCamera in iOS?

How to Update or Change Camera Position between two Locations using GoogleMaps GMSCamera in iOS?


By : praneeth
Date : March 29 2020, 07:55 AM
seems to work fine In viewDidLoad I give my current Location to show in Map. , Finally I tried something using GMSCameraPosition fix the problem.
code :
-(void)textFieldDidEndEditing:(UITextField *)textField{

if(textField==self.txtAddress  && self.txtAddress.text.length > 0)
{  
    [CATransaction begin];
    [CATransaction setValue:[NSNumber numberWithFloat:2.0] forKey:kCATransactionAnimationDuration];
    GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude: [strForLatitude doubleValue]
                                                            longitude: [strForLongitude doubleValue] zoom: 14];
    [mapView_ animateToCameraPosition: camera];
    [CATransaction commit];
    self.ImageMarkerMapCentre.hidden = NO;
}

if(textField==self.txtDropoffAddress  && self.txtDropoffAddress.text.length > 0)
{
    [CATransaction begin];
    [CATransaction setValue:[NSNumber numberWithFloat:2.0] forKey:kCATransactionAnimationDuration];
    GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:[[pref objectForKey:@"Destination_Latitude"] doubleValue] longitude:[[pref objectForKey:@"Destination_Longitude"] doubleValue] zoom:14];
    [mapView_ animateToCameraPosition: camera];
    [CATransaction commit];
    self.ImageMarkerMapCentre.hidden = YES;

}
CSS transform: rotate top-left corner of child over bottom-left corner of parent

CSS transform: rotate top-left corner of child over bottom-left corner of parent


By : user1504689
Date : March 29 2020, 07:55 AM
Any of those help Is there a way how to automatically achieve this without the knowledge of line height/parent height with negative translate? , You can try this:
code :
.parent {
  border: 1px solid green;
  border-left-color: red;
  margin-top:100px;
  position:absolute;
}

.child {
  border: 1px solid orange;
  border-left-color: red;
  transform: rotate(-90deg) translateY(100%);
  transform-origin: bottom left;
}
<div class="parent">
  <div class="child">
    CONCEPT
  </div>
</div>
Why is origin usually top left corner in painting APIs when logically and native GL is at bottom left corner?

Why is origin usually top left corner in painting APIs when logically and native GL is at bottom left corner?


By : Vikas Jain
Date : March 29 2020, 07:55 AM
I hope this helps you . 2D raster drawing having a top-left origin, with rightward x-axis and downward y-axis, is most likely mirroring the CRT scanning pattern. A frame buffer organized in this way -- with row-major pixels from top to bottom -- can be fed in linear order to the RAMDAC producing the signal for the CRT. Other organizations would require the graphics system to perform more arithmetic, for no practical benefit.
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