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Animate a car(Marker) along a path in google map android


Animate a car(Marker) along a path in google map android

By : user4580189
Date : November 29 2020, 09:01 AM
like below fixes the issue I am going to share a solution of moving a marker along the path if you have List.The Bitmap will move along the path from using LatLng list.
code :
public static void setAnimation(GoogleMap myMap, final List<LatLng> directionPoint, final Bitmap bitmap) {


    Marker marker = myMap.addMarker(new MarkerOptions()
            .icon(BitmapDescriptorFactory.fromBitmap(bitmap))
            .position(directionPoint.get(0))
            .flat(true));

    myMap.animateCamera(CameraUpdateFactory.newLatLngZoom(directionPoint.get(0), 10));

    animateMarker(myMap, marker, directionPoint, false);
}


private static void animateMarker(GoogleMap myMap, final Marker marker, final List<LatLng> directionPoint,
                                  final boolean hideMarker) {
    final Handler handler = new Handler();
    final long start = SystemClock.uptimeMillis();
    Projection proj = myMap.getProjection();
    final long duration = 30000;

    final Interpolator interpolator = new LinearInterpolator();

    handler.post(new Runnable() {
        int i = 0;

        @Override
        public void run() {
            long elapsed = SystemClock.uptimeMillis() - start;
            float t = interpolator.getInterpolation((float) elapsed
                    / duration);
            if (i < directionPoint.size())
                marker.setPosition(directionPoint.get(i));
            i++;


            if (t < 1.0) {
                // Post again 16ms later.
                handler.postDelayed(this, 16);
            } else {
                if (hideMarker) {
                    marker.setVisible(false);
                } else {
                    marker.setVisible(true);
                }
            }
        }
    });
}


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Update Location Marker and draw path on Google Maps when walking/driving in Android

Update Location Marker and draw path on Google Maps when walking/driving in Android


By : Emmanuel Ladoux
Date : March 29 2020, 07:55 AM
will help you Current location can be easily drawn with MyLocationOverlay. What you need to do - is to add this overlay to your MapView. Something like:
code :
mapView.addOverlay(new MyLocationOverlay(context, mapView));
Path path;

@Override
public void draw(Canvas canvas, final MapView mapView, boolean shadow)
{
    Projection proj = mapView.getProjection();
    updatePath(mapView,proj);
    canvas.drawPath(path, mPaint);
}

protected void updatePath(final MapView mapView, Projection proj)
{
    path = new Path();

    proj.toPixels(mPoints.get(0).point, p);
    path.moveTo(p.x, p.y);

    for(RouteEntity.RoutePoint rp : mPoints)
    {
        proj.toPixels(rp.point, mPoint);
        path.lineTo(mPoint.x, mPoint.y);
    }
}
Android Google Maps v2: animate marker size

Android Google Maps v2: animate marker size


By : Daral TİMSAH
Date : March 29 2020, 07:55 AM
Hope this helps I'm trying to animate the size of a marker as it is added to a map, basically I want the marker to grow. I can't see any way of getting to the actual view for the marker so I don't think I can use the standard Android animation techniques (e.g. ObjectAnimator). , You may try something like this
code :
final Marker marker = map.addMarker(new MarkerOptions().position(new LatLng(0, 0)).title("Marker"));
final Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.ic_temperature_kelvin_black_48dp);
final Bitmap target = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(target);
ValueAnimator animator = ValueAnimator.ofFloat(0, 1);
animator.setDuration(500);
animator.setStartDelay(1000);
final Rect originalRect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF scaledRect = new RectF();
animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
    @Override
    public void onAnimationUpdate(ValueAnimator animation) {
        float scale = (float) animation.getAnimatedValue();
        scaledRect.set(0, 0, originalRect.right * scale, originalRect.bottom * scale);
        canvas.drawBitmap(bitmap, originalRect, scaledRect, null);
        marker.setIcon(BitmapDescriptorFactory.fromBitmap(target));
    }
});
animator.start();
How to smoothly animate a marker in google maps API with Android?

How to smoothly animate a marker in google maps API with Android?


By : The wizard
Date : March 29 2020, 07:55 AM
seems to work fine I have managed to display a marker on the map in the current position and everytime I'm moving the camera is following me. I get the device current location every 1000 milliseconds like this: , Try below code instead to animate the camera:
code :
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(latLng, zoom);
        if(mMap != null) {
            mMap.animateCamera(cameraUpdate);
        }
svg animate marker-end/marker-start with curved path animation

svg animate marker-end/marker-start with curved path animation


By : julkku
Date : March 29 2020, 07:55 AM
will help you Since what you have is a Bézier curve, you can calculate the points to draw the curve from the origin to the new position. To understand what comes next you need to understand what is a Bézier curve.
In the next example I'm using an input type range to change the curve. You may animate it instead. Please read the comments in the code.
code :
//the points used to draw the final curve
let points = [[308.7, 34.9],[381.3, 37.4],[444.3, 78],[478.7,137.5]];
//the position of the final point of the actual curve on the final curve.
let t = 0.5;
//the points for the actual curve
let newPoints = getBezierPoints(t);
drawCBezier(newPoints, the_bezier);

// on input recalcalculate the points for the curve and the curve
T.addEventListener("input", function() {
  t = this.value;
  newPoints = getBezierPoints(t);
  drawCBezier(newPoints, the_bezier);
});


function getBezierPoints(t) {
  let helperPoints = [];

  // helper points 0,1,2
  for (let i = 1; i < 4; i++) {
    //points.length must be 4 !!!
    let p = lerp(points[i - 1], points[i], t);
    helperPoints.push(p);
  }

  // helper points 3,4
  helperPoints.push(lerp(helperPoints[0], helperPoints[1], t));
  helperPoints.push(lerp(helperPoints[1], helperPoints[2], t));

  // helper point 5 is where the first Bézier ends and where the second Bézier begins
  helperPoints.push(lerp(helperPoints[3], helperPoints[4], t));

  // points for the dynamic bézier
  let firstBezier = [
    points[0],
    helperPoints[0],
    helperPoints[3],
    helperPoints[5]
  ];
  
  return firstBezier;
}

function lerp(A, B, t) {
  // a virtual line from A to B
  // get the position of a point on this line
  // if(t == .5) the point in in the center of the line
  // 0 <= t <= 1
  let ry = [
    (B[0] - A[0]) * t + A[0], //x
    (B[1] - A[1]) * t + A[1] //y
  ];
  return ry;
}

function drawCBezier(points, path) {
  let d = `M${points[0][0]},${points[0][1]} C`;
  // points.length == 4
  for (let i = 1; i < 4; i++) {
    d += ` ${points[i][0]},${points[i][1]}`;
  }
  
  path.setAttributeNS(null, "d", d);
}
svg {
  border: 1px solid;
  width:100vh
}
<input type="range" value=".5" min="0" max="1" step=".01" id="T">
<svg viewBox="290 0 200 150">
  <defs>
  <marker
    id="arrow"
    orient="auto-start-reverse"
    viewBox="0 0 7.1 11.5"
    markerWidth="7.1"
    markerHeight="11.5"
    markerUnits="strokeWidth"
    refX="5" refY="5.75">
    <path d="M1 11.5L0 10.4L5.1 5.7L0 1L1 0L7.1 5.7L1 11.5" fill="#00897b"></path> 
  </marker>
  
  <marker id="circle" viewBox="0 0 6 6" refX="1" refY="3"
			markerUnits="userSpaceOnUse" orient="auto"
			markerWidth="6" markerHeight="6">
			<circle cx="3" cy="3" r="3" fill="#4caf50"/>
   </marker>
</defs>

  
  <path id="the_bezier" d=""
    marker-start="url(#circle)"
    marker-end="url(#arrow)"
    stroke-width="2"
    fill="none"
    stroke="blue" />
</svg>
How to animate google map v2 marker on the polyline path?

How to animate google map v2 marker on the polyline path?


By : Vd Bazinga
Date : March 29 2020, 07:55 AM
it fixes the issue Check out the tutorial which shows that how to animate marker on the map route. It also provides the code in GitHub also which you can try out.
Check HERE
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