klem_johansen fucked around with this message at 21:01 on Jun 17, 2012

duck monster fucked around with this message at 05:07 on Jun 18, 2012

Doc Block fucked around with this message at 05:21 on Jun 18, 2012

#import "draw2d"

@implementation draw2d
- (id)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        // Initialization code. [EMPTY]
    }
    return self;
}
- (void)drawRect:(CGRect)rect {
	CGContextRef context = UIGraphicsGetCurrentContext();
	//Draw code. [Giant block of path drawings.]	
}
- (void)dealloc {
    [super dealloc];
}
@end

Jehde fucked around with this message at 18:58 on Jun 18, 2012

haveblue fucked around with this message at 20:56 on Jun 18, 2012

@implementation draw2d {
	NSMutableArray *_points;
}

- (id)initWithFrame:(CGRect)frame
{
	if(self = [super initWithFrame:frame]) {
		_points = [[NSMutableArray alloc] initWithCapacity:100];
	}
}

- (void)dealloc
{
	// if you aren't using ARC
	[_points release];

	[super dealloc];
}

- (void)addPoint:(CGPoint)point
{
	NSValue *val = [NSValue valueWithCGPoint:point];
	[_points addObject:val];
	[self setNeedsDisplay];
}

- (void)removeAllPoints
{
	[_points removeAllObjects];
	[self setNeedsDisplay];
}

- (void)drawRect:(CGRect)rect
{
	CGContextRef context = UIGraphicsGetCurrentContext();

	// Your existing drawing code goes here

	CGFloat black[4] = {0.0f, 0.0f, 0.0f, 1.0f};
	CGContextSetStrokeColor(context, black);
	
	// you can leave these next two lines out if you just want your nodes to be a continuation of
	// whatever your previous code is drawing
	CGContextBeginPath(context);
	CGContextMoveToPoint(context, 100, 100);	// or whatever your starting point is for the nodes

	for(NSValue *val in _points) {
		// pull out the CGPoint and draw it however you need to
		// for example
		CGPoint point = [val CGPointValue];
		CGContextAddLineToPoint(context, point.x, point.y);
	}
	
	CGContextStrokePath(context);
}

Doc Block fucked around with this message at 21:28 on Jun 18, 2012