Merge pull request #62 from jackyzonewen/master

PNLineChart's inflexion Point support two sharp, such as cycle, square

@@ -10,7 +10,6 @@
 #import <QuartzCore/QuartzCore.h>
 #import "PNChartDelegate.h"
 
-
 @interface PNLineChart : UIView
 
 /**
@@ -48,8 +47,6 @@
 
 @property (nonatomic) CGFloat chartMargin;
 
-
-
 @property (nonatomic) BOOL showLabel;
 
 

@@ -5,14 +5,36 @@
 
 #import <Foundation/Foundation.h>
 
+/**
+ *  not support PNLineChartPointStyleTriangle style recently
+ */
+typedef NS_ENUM(NSUInteger, PNLineChartPointStyle) {
+    
+    PNLineChartPointStyleNone = 0,
+    PNLineChartPointStyleCycle,
+    PNLineChartPointStyleTriangle,
+    PNLineChartPointStyleSquare
+};
+
 @class PNLineChartDataItem;
 
 typedef PNLineChartDataItem *(^LCLineChartDataGetter)(NSUInteger item);
 
-
 @interface PNLineChartData : NSObject
 
 @property (strong) UIColor *color;
 @property NSUInteger itemCount;
 @property (copy) LCLineChartDataGetter getData;
+
+@property (nonatomic, assign) PNLineChartPointStyle inflexionPointStyle;
+
+/**
+ *  if PNLineChartPointStyle is cycle, inflexionPointWidth equal cycle's diameter
+ *  if PNLineChartPointStyle is square, that means the foundation is square with
+ *  inflexionPointWidth long
+ */
+@property (nonatomic, assign) CGFloat inflexionPointWidth;
+
+@property (nonatomic, assign) CGFloat lineWidth;
+
 @end

@@ -7,4 +7,22 @@
 
 @implementation PNLineChartData
 
+- (id)init
+{
+    self = [super init];
+    if (self) {
+        
+        [self setDefaultValues];
+    }
+    
+    return self;
+}
+
+- (void)setDefaultValues
+{
+    _inflexionPointStyle = PNLineChartPointStyleNone;
+    _inflexionPointWidth = 6.f;
+    _lineWidth = 2.f;
+}
+
 @end

@@ -64,12 +64,14 @@
         lineChart.yLabelFormat = @"%1.1f";
         lineChart.backgroundColor = [UIColor clearColor];
         [lineChart setXLabels:@[@"SEP 1",@"SEP 2",@"SEP 3",@"SEP 4",@"SEP 5",@"SEP 6",@"SEP 7"]];
+        lineChart.showCoordinateAxis = YES;
 
         // Line Chart Nr.1
         NSArray * data01Array = @[@60.1, @160.1, @126.4, @262.2, @186.2, @127.2, @176.2];
         PNLineChartData *data01 = [PNLineChartData new];
         data01.color = PNFreshGreen;
         data01.itemCount = lineChart.xLabels.count;
+        data01.inflexionPointStyle = PNLineChartPointStyleCycle;
         data01.getData = ^(NSUInteger index) {
             CGFloat yValue = [data01Array[index] floatValue];
             return [PNLineChartDataItem dataItemWithY:yValue];
@@ -80,6 +82,7 @@
         PNLineChartData *data02 = [PNLineChartData new];
         data02.color = PNTwitterColor;
         data02.itemCount = lineChart.xLabels.count;
+        data02.inflexionPointStyle = PNLineChartPointStyleSquare;
         data02.getData = ^(NSUInteger index) {
             CGFloat yValue = [data02Array[index] floatValue];
             return [PNLineChartDataItem dataItemWithY:yValue];