Highlighting the center and origin of a square.

C4WorkSpace.m

//
// C4WorkSpace.m
//
// Created by Travis Kirton and Greg Debicki.
//

#import "C4WorkSpace.h"

@implementation C4WorkSpace  

-(void)setup {
    C4Shape *square = [C4Shape rect:CGRectMake(0,0,192,192)];
    square.center = self.canvas.center;
    [self.canvas addShape:square];
    
    C4Shape *c1, *c2;
    c1 = [C4Shape ellipse:CGRectMake(0, 0, 20, 20)];
    c1.strokeColor = C4RED;
    c1.fillColor = [UIColor clearColor];
    
    c2 = [c1 copy];
    
    c1.center = square.origin;
    c2.center = square.center;
    
    [self.canvas addObjects:@[square,c1,c2]];
}

@end