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经纬度距离算法写错了吧？

double Dlongtitude = Math.abs( 111 * 1000 * Math.cos(Math.abs(Point2Longtitude - Point1Longtitude)));
应该是
double Dlongtitude = 111 * 1000 * Math.abs(Point2Longtitude - Point1Longtitude);

另外，这个距离有点不准，用这个计算距离3213米，高德的算法2854米

`
class LatLng{
Double longitude;
Double latitude;

	public LatLng(Double longitude, Double latitude) {
		this.longitude = longitude;
		this.latitude = latitude;
	}
}

public float calculateLineDistance(LatLng var0, LatLng var1) {
	if(var0 != null && var1 != null) {
		double var2 = 0.01745329251994329D;
		double var4 = var0.longitude;
		double var6 = var0.latitude;
		double var8 = var1.longitude;
		double var10 = var1.latitude;
		var4 *= 0.01745329251994329D;
		var6 *= 0.01745329251994329D;
		var8 *= 0.01745329251994329D;
		var10 *= 0.01745329251994329D;
		double var12 = Math.sin(var4);
		double var14 = Math.sin(var6);
		double var16 = Math.cos(var4);
		double var18 = Math.cos(var6);
		double var20 = Math.sin(var8);
		double var22 = Math.sin(var10);
		double var24 = Math.cos(var8);
		double var26 = Math.cos(var10);
		double[] var28 = new double[3];
		double[] var29 = new double[3];
		var28[0] = var18 * var16;
		var28[1] = var18 * var12;
		var28[2] = var14;
		var29[0] = var26 * var24;
		var29[1] = var26 * var20;
		var29[2] = var22;
		double var30 = Math.sqrt((var28[0] - var29[0]) * (var28[0] - var29[0]) + (var28[1] - var29[1]) * (var28[1] - var29[1]) + (var28[2] - var29[2]) * (var28[2] - var29[2]));
		return (float)(Math.asin(var30 / 2.0D) * 1.27420015798544E7D);
	} else {
		throw new IllegalArgumentException("非法坐标值");
	}
}

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