<br > #VBPieChart

Animated Pie Chart control for iOS apps, based on CALayer. Very easy in use and have custom labeling.

##Usage

#####Create instance of VBPieChart:

VBPieChart *chart = [[VBPieChart alloc] init];
[self.view addSubview:chart];

#####Setup some options:

[chart setFrame:CGRectMake(10, 50, 300, 300)]; // frame
[chart setEnableStrokeColor:YES]; 
[chart setHoleRadiusPrecent:0.3]; /* hole inside of chart */

#####Prepare your data:

NSArray *chartValues = @[
 @{@"name":@"Apples", @"value":@50, @"color":[UIColor redColor]},
 @{@"name":@"Pears", @"value":@20, @"color":[UIColor blueColor]},
 @{@"name":@"Oranges", @"value":@40, @"color":[UIColor orangeColor]},
 @{@"name":@"Bananas", @"value":@70, @"color":[UIColor purpleColor]}
];

chartValues needs to be defined as an array of dictionaries.
Dictionary required to contain value for piece with key value.
Optional:

• name
• color
• labelColor
• accent
• strokeColor

#####Present pie charts with animation:

[chart setChartValues:chartValues animation:YES duration:0.4 options:VBPieChartAnimationFan];

Documentation

VBPieChart is subclass of UIView

####Properties

length
Length of circle pie. Min values is 0 and max value M_PI*2.

startAngle
Start angle of pie. (M_PI will make start at left side)

holeRadiusPrecent
hole radius in % of whole radius. Values 0..1. (acual hole radius will be calculated radius*holeRadiusPrecent)

radiusPrecent
Defines the radius, full radius = frame.size.width/2, actual radius = full radius*radiusPrecent. Value 0..1.

labelBlock
Block will help to redefine positions for labels.

####Methods

Simple setup data.
- (void) setChartValues:(NSArray *)chartValues;

Setup data to pie chart with animation or not, animation options and duration.
- (void) setChartValues:(NSArray *)chartValues animation:(BOOL)animation duration:(float)duration options:(VBPieChartAnimationOptions)options;

Animation options:

• VBPieChartAnimationFanAll
• VBPieChartAnimationGrowth
• VBPieChartAnimationGrowthAll
• VBPieChartAnimationGrowthBack
• VBPieChartAnimationGrowthBackAll
• VBPieChartAnimationFan
• VBPieChartAnimationTimingEaseInOut
• VBPieChartAnimationTimingEaseIn
• VBPieChartAnimationTimingEaseOut
• VBPieChartAnimationTimingLinear

Change value for elemet at index. Value will be changed with animation.
- (void) setValue:(NSNumber*)value pieceAtIndex:(NSInteger)index;

Remove piece at index.
- (void) removePieceAtIndex:(NSInteger)index;

Change values in multiple sections. Values will be changed with animation.
- (void) setValues:(NSDictionary*)values;
Example:
[chartView setValues:@{@(0) : @(50), @(1) : @(70)}]; // set 50 for first and 70 for second sections

Screenshots