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我有以下功能,我很接近破解,但无法在obj-c中找到mod函数。我希望有人能帮助解决这个问题。坐标计算Objective-C
-(void)estimatePosition{
float lat1 = 50.000;
float lon1 = -1.666;
float d = 500;
float tc = 90;
float lat;
float dlon;
float lon;
lat =asin(sin(lat1)*cos(d)+cos(lat1)*sin(d)*cos(tc));
dlon=atan2(sin(tc)*sin(d)*cos(lat1),cos(d)-sin(lat1)*sin(lat));
lon=mod(lon1-dlon +M_PI,2*M_PI)-M_PI;
}
谢谢排序! – 2010-01-22 06:42:27