MapViewAnimation

在地图上实现的简陋动画UIView Animation,Core Animation(如何在地图上做动画) CAKeyFrameAnimation

for (int i = 0; i<[points count]; i++) { TracingPoint * tp = points[i];

    //position
    MAMapPoint p = MAMapPointForCoordinate(tp.coordinate);
    [xvalues addObjectsFromArray:@[@(p.x), @(p.x)]];//stop for turn
    [yvalues addObjectsFromArray:@[@(p.y), @(p.y)]];

    //angle
    double currDir = [Util fixNewDirection:tp.course basedOnOldDirection:preDir];
    [rvalues addObjectsFromArray:@[@(preDir * DegToRad), @(currDir * DegToRad)]];
    
    //distance
    dis[i] = MAMetersBetweenMapPoints(p, preLoc);
    sumOfDistance = sumOfDistance + dis[i];
    dis[i] = sumOfDistance;
    
    //record pre
    preLoc = p;
    preDir = currDir;
}

//   add animation.
 CAKeyframeAnimation *xanimation = [CAKeyframeAnimation animationWithKeyPath:MapXAnimationKey];
 xanimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
  xanimation.values   = xvalues;
  xanimation.keyTimes = times;
 xanimation.duration = duration;
 xanimation.delegate = self;
 xanimation.fillMode = kCAFillModeForwards;