Pro OpenGL ES for iOS

274 CHAPTER 8: Putting It All Together^

if (self)

{

[self init:@"stars"];

}

return self;

}

-(void)init:(NSString *)filename

{

NSArray *fatData;

NSDictionary *dict;

NSNumber *ra,*dec;

starData *sd;

float mag;

float x,y,z;

int i,j;

m_TotalStars=0;

NSString *thePath = [[NSBundle mainBundle] pathForResource:filename

ofType:@"plist"];

fatData = [[NSArray alloc] initWithContentsOfFile:thePath]; //2

m_TotalStars=[fatData count];

m_Data=(struct starData *)malloc([fatData count]*sizeof(struct starData));

for(i=0;i<m_TotalStars;i++)

{

dict=(NSDictionary *)[fatData objectAtIndex:i];

ra=(NSNumber *)[dict objectForKey:@"ra"]; //3

dec=(NSNumber *)[dict objectForKey:@"dec"];

[[OpenGLUtils getObject]sphereToRectTheta:[ra floatValue]/DEGREES_PER_RADIAN

phi:[dec floatValue]/DEGREES_PER_RADIAN radius:STANDARD_RADIUS

xprime:&x yprime:&y zprime:&z];

//Create nice compressed data array.

sd=(struct starData *)&m_Data[i];

sd->x=x;

sd->y=y;

sd->z=z;

sd->mag=[[dict objectForKey:@"mag"]floatValue];

mag=1.0-sd->mag/4.0; //4