//

// HTViewController.m

// CorePlotProgram

//

// Created by wb-shangguanhaitao on 14-2-24.

// Copyright (c) 2014年 shangguan. All rights reserved.

//

#import "HTViewController.h"

#import "CorePlot-CocoaTouch.h"

@interface HTViewController ()<CPTPlotDataSource>

/**

* 设置图表绘制的配置

*/

- (void)setupCoreplotViews;

@end

@implementation HTViewController

#pragma mark - Superclass API

- (void)viewDidLoad

{

[super viewDidLoad];

[self setupCoreplotViews];

// Do any additional setup after loading the view.

}

- (void)didReceiveMemoryWarning

{

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

#pragma mark - Private API

- (void)setupCoreplotViews

{

CPTXYGraph *graph = [[CPTXYGraph alloc] initWithFrame:CGRectZero];

CPTTheme *theme = [CPTTheme themeNamed:kCPTDarkGradientTheme];

[graph applyTheme:theme];

CPTXYPlotSpace *space = (CPTXYPlotSpace *)graph.defaultPlotSpace;

space.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromString(@"0.0f") length:CPTDecimalFromString(@"3.0f")];

space.yRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromString(@"0.0f") length:CPTDecimalFromString(@"3.0f")];

space.allowsUserInteraction = YES;

graph.paddingTop = 0.0f;

graph.paddingLeft = 0.0f;

graph.paddingBottom = 0.0f;

graph.paddingRight = 0.0f;

graph.plotAreaFrame.paddingTop = 50.0f;

graph.plotAreaFrame.paddingLeft = 50.0f;

graph.plotAreaFrame.paddingBottom = 50.0f;

graph.plotAreaFrame.paddingRight = 50.0f;

graph.plotAreaFrame.borderLineStyle = nil;

graph.plotAreaFrame.cornerRadius = 0.0f;

graph.plotAreaFrame.masksToBorder = NO;

CPTXYAxisSet *axisSet = (CPTXYAxisSet *)graph.axisSet;

CPTXYAxis *x = axisSet.xAxis;

x.axisLineStyle = nil;

x.majorTickLineStyle = nil;

x.minorTickLineStyle = nil;

// x.majorIntervalLength = CPTDecimalFromDouble(5.0);

// x.orthogonalCoordinateDecimal = CPTDecimalFromDouble(0.0);

x.title = @"X Axis";

x.titleLocation = CPTDecimalFromFloat(1.5f);

x.titleOffset = 30.0f;

x.labelingPolicy = CPTAxisLabelingPolicyNone;

NSArray *customTickLocations = [NSArray arrayWithObjects:[NSDecimalNumber numberWithInt:0], [NSDecimalNumber numberWithInt:1], [NSDecimalNumber numberWithInt:2], nil];

NSArray *xAxisLabels = [NSArray arrayWithObjects:@"Label A", @"Label B", @"Label C", nil];

NSUInteger labelLocation = 0;

NSMutableSet *customLabels = [NSMutableSet setWithCapacity:[xAxisLabels count]];

for ( NSNumber *tickLocation in customTickLocations ) {

CPTAxisLabel *newLabel = [[CPTAxisLabel alloc] initWithText:[xAxisLabels objectAtIndex:labelLocation++] textStyle:x.labelTextStyle];

newLabel.tickLocation = [tickLocation decimalValue];

// newLabel.offset = x.labelOffset + x.majorTickLength;

newLabel.rotation = M_PI_4;

[customLabels addObject:newLabel];

}

x.axisLabels = customLabels;

CPTXYAxis *y = axisSet.yAxis;

y.axisLineStyle = nil;

y.majorTickLineStyle = nil;

y.minorTickLineStyle = nil;

y.title = @"Y Axis";

y.titleLocation = CPTDecimalFromFloat(1.5f);

y.titleOffset = 30.0f;

CPTBarPlot *barPlot = [CPTBarPlot tubularBarPlotWithColor:[CPTColor orangeColor] horizontalBars:NO];

// barPlot.baseValue = CPTDecimalFromString(@"0.025f");

barPlot.barCornerRadius = 5.0f;

// barPlot.barBaseCornerRadius = 5.0f;

// barPlot.barWidthScale = 2.0f;

barPlot.dataSource = self;

[graph addPlot:barPlot];

CPTMutableTextStyle *titleStyle = [CPTMutableTextStyle textStyle];

titleStyle.color = [CPTColor whiteColor];

titleStyle.fontName = @"Helvetica-Bold";

titleStyle.fontSize = 16.0;

titleStyle.textAlignment = CPTTextAlignmentCenter;

graph.title = [NSString stringWithFormat:@"WhatsApp"];

graph.titleTextStyle = titleStyle;

graph.titleDisplacement = CGPointMake(0.0, -20.0);

graph.titlePlotAreaFrameAnchor = CPTRectAnchorTop;

//...

CPTGraphHostingView *hostingView = [[CPTGraphHostingView alloc] initWithFrame:self.view.bounds];

[self.view addSubview:hostingView];

hostingView.hostedGraph = graph;

}

#pragma makr - CPTPlotDataSource API

-(NSUInteger)numberOfRecordsForPlot:(CPTPlot *)plot

{

return 3;

}

-(NSNumber *)numberForPlot:(CPTPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)idx

{

if (fieldEnum == CPTScatterPlotFieldY)

{

return [NSNumber numberWithUnsignedInteger:idx + 1];

}

else

{

return [NSNumber numberWithUnsignedInteger:idx];

}

}

@end