gistfile1.txt

//
//  GOCustomView.m
//  CustomViewExample
//
//  Created by Cassidy Pangell on 8/26/11.
//  Copyright (c) 2011 __MyCompanyName__. All rights reserved.
//

#import "CPCustomView.h"
#include "math.h"
#define LENGTH 250
#define HEIGHT 250

@implementation CPCustomView
@synthesize bgColor = _bgColor;
@synthesize MVO_U_Points = _MVO_U_Points;
@synthesize MVO_D_Points = _MVO_D_Points;
@synthesize TCP_U_Points = _TCP_U_Points;
@synthesize TCP_D_Points = _TCP_D_Points;



- (void)setBgColor:(UIColor *)bgColor{
    [_bgColor release];
    _bgColor = [bgColor retain];
    [self setNeedsDisplay];
}


- (void)awakeFromNib{
    //self.bgColor = [UIColor orangeColor];
}

- (void)drawRect:(CGRect)rect
{

    [self.bgColor setFill];
    
   [self graphPoints:_MVO_D_Points];
  //  [self graphPoints:_MVO_U_Points];
   // [self graphPoints:_TCP_D_Points];
   // [self graphPoints:_TCP_U_Points];

}

-(void) graphPoints:(NSArray *)nsArray{
  // NSLog(@"GraphPoints%@ ", nsArray);
    CGContextRef context = UIGraphicsGetCurrentContext();

    NSUInteger count = [nsArray count];
    CGFloat prevValX;
    CGFloat prevValY;
    CGFloat deltaX = LENGTH / (count - 1);
    CGPoint zero;
    zero.x = 0;
    zero.y = 0;
    //allocate data points for graph
    for(int i=1; i<count; i++){
        NSValue *currentPointValue = [nsArray objectAtIndex:i];
        CGPoint currentPoint = [currentPointValue CGPointValue];

        CGPoint previousPoint = [[nsArray objectAtIndex:i-1] CGPointValue];

            NSLog(@"Point %@", previousPoint);
            prevValX = previousPoint.x;
            prevValY = previousPoint.y;
            NSLog(@"prev X %@ Y %@", prevValX, prevValY);
    
        //Scale the graph
        CGFloat xVal = count + (deltaX * i);
        CGFloat yVal = (currentPoint.y);
        NSLog(@"xVal %f yVal %f", xVal, yVal);
        
        //Draw Points
        if (nsArray == _MVO_D_Points) {
           // NSLog(@"MVO D");
            CGContextSetFillColorWithColor(context, [UIColor yellowColor].CGColor);
            CGContextFillEllipseInRect(context, CGRectMake(xVal, yVal, 3, 3));
            CGContextSetStrokeColorWithColor(context, [UIColor yellowColor].CGColor);
        }else if (nsArray == _MVO_U_Points){
           //NSLog(@"MVO U");
            CGContextSetFillColorWithColor(context, [UIColor orangeColor].CGColor);
            CGContextFillEllipseInRect(context, CGRectMake(xVal, yVal, 3, 3));
            CGContextSetStrokeColorWithColor(context, [UIColor orangeColor].CGColor);
        }else if (nsArray == _TCP_D_Points){
           //NSLog(@"TCP D");
            CGContextSetFillColorWithColor(context, [UIColor purpleColor].CGColor);
            CGContextFillEllipseInRect(context, CGRectMake(xVal, yVal, 3, 3));
            CGContextSetStrokeColorWithColor(context, [UIColor purpleColor].CGColor);
        }else{ //_TCP_U_Point
           //NSLog(@"TCP U");
            CGContextSetFillColorWithColor(context, [UIColor redColor].CGColor);
            CGContextFillEllipseInRect(context, CGRectMake(xVal, yVal, 3, 3));
            CGContextSetStrokeColorWithColor(context, [UIColor redColor].CGColor);
        }
        
        CGContextBeginPath(context);
        CGContextMoveToPoint(context, prevValX, prevValY);
        CGContextAddLineToPoint(context, xVal, yVal);
        CGContextStrokePath(context);
    }
    
    //----- AXIS
    CGContextSetStrokeColorWithColor(context, [UIColor whiteColor].CGColor);
    CGContextBeginPath(context);
    
    //Vert Line
    CGContextMoveToPoint(context, 25, 25);
    CGContextAddLineToPoint(context, 25, 275);
    
    //Horiz Line
    CGContextMoveToPoint(context, 25, 275);
    CGContextAddLineToPoint(context, 275, 275);
    CGContextStrokePath(context); 
    //----- END AXIS
   }

@end