Basic Shape Mask

C4WorkSpace.m

//
// C4WorkSpace.m
//
// Created by Travis Kirton
//

#import "C4WorkSpace.h"

@implementation C4WorkSpace {
    C4Image *image;
    C4Shape *shape;
}

-(void)setup {
    [self setupImageAndShape];
    image.mask = shape;
}

-(void)setupImageAndShape {
    image = [C4Image imageNamed:@"C4Table"];
    image.center = self.canvas.center;
    shape = [C4Shape ellipse:CGRectMake(0, 0, image.height, image.height)];
    shape.center = CGPointMake(image.width/2,image.height/2);
    [self.canvas addImage:image];
}

@end