Line Dash Pattern

C4Workspace.m

//
//  C4WorkSpace.m
//  Examples
//
//  Created by Travis Kirton on 12-07-19.
//

#import "C4WorkSpace.h"

@implementation C4WorkSpace {
    C4Shape *line1, *line2;
}

-(void)setup {
    //create end points for the first line
    CGPoint endPoints[2] = {CGPointMake(0, self.canvas.height/3),CGPointMake(self.canvas.width, self.canvas.height/3)};
    
    //create the first line
    line1 = [C4Shape line:endPoints];
    
    //shift the end points for the second line
    endPoints[0].y *= 2;
    endPoints[1].y *= 2;
    
    //create the second line
    line2 = [C4Shape line:endPoints];
    
    //create a c-array dash pattern and set this for line1
    CGFloat pattern[2] = {5,10};
    [line1 setDashPattern:pattern pointCount:2];
    
    //create an NSArray of numbers and set this as the dash pattern for line2
    NSArray *patternArray = [NSArray arrayWithObjects:[NSNumber numberWithInt:15],[NSNumber numberWithInt:30], nil];
    line2.lineDashPattern = patternArray;
    
    //thicken the lines
    line1.lineWidth = 50.0f;
    line2.lineWidth = 50.0f;
    
    //add the lines to the canvas
    [self.canvas addShape:line1];
    [self.canvas addShape:line2];
}

@end