Description: the chart is plotted by parameters set in the current files.
#import "Charting/Chart.h"
#import "Brush.h"
#import "Charting/ColumnSeries.h"
#import "Charting/AreaSeries.h"
#import "DataSource.h"
#import "Charting/BarSeries.h"
#import "Charting/PieSeries.h"
#import "Charting/LineSeries.h"
#import "Charting/LinePoint.h"
#import "Charting/ChartTouchesDelegate.h"
#import "Charting/ChartLabel.h"
#import "Charting/BubbleSeries.h"
#import "ChartTypes.h"
#import "Charting/ChartAnimationScale.h"
#import "Charting/ChartAnimationFade.h"
#import "Charting/ChartAnimationMove.h"
#import "Charting/ChartAnimationRotate.h"
#import "Charting/ChartAnimationPieMove.h"
#import "Charting/ChartAnimationDelegate.h"
@interface ViewController : UIViewController<ChartAnimationDelegate,ChartTouchesDelegate>{
Chart *chart;
float max;
float min;
NSMutableDictionary *m_numberFormat;
int axisType;
BOOL hideAxis;
int chartType;
NSArray *m_colors;
DataSource *datasource;
SolidColorBrush *solidBrush;
}
- (ChartLabel *)createDefaultLabel;
- (void) setChartSettings;
- (void) drawAllSeries;
- (NSDictionary *) createDictForBrushWithBaseColor:(UIColor *) color;
@end
#import "ViewController.h"
#import "CustomView.h"
#define ColorWithRGBA(_r, _g, _b, _a) \
[UIColor colorWithRed:(_r) / 255.0f green:(_g) / 255.0f blue:(_b) / 255.0f alpha:(_a) / 255.0f]
@implementation ViewController
- (void)dealloc
{
[super dealloc];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
m_numberFormat = [[NSMutableDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool:NO], @"asInSource",
[NSNumber numberWithInt:2], @"decNumbers",
[NSNumber numberWithBool:YES], @"separator",
@"", @"prefix",
@"", @"suffix",
[NSNumber numberWithBool:NO], @"negativeRed",
nil] retain];
m_colors = [[NSArray arrayWithObjects:
ColorWithRGBA(19, 88, 138, 255 ),
ColorWithRGBA(109, 167, 192, 255 ),
ColorWithRGBA(41, 171, 226, 255 ),
ColorWithRGBA(0, 169, 157, 255 ),
ColorWithRGBA(103, 124, 139, 255 ),
ColorWithRGBA(221, 241, 250, 255 ),
ColorWithRGBA(169, 221, 243, 255 ),
ColorWithRGBA(102, 203, 196, 255 ),
ColorWithRGBA(208, 222, 232, 255 ),
ColorWithRGBA(190, 160, 186, 255 ),
nil] retain];
// Create a chart and set size
chart = [[Chart alloc] initWithName:@"Chart"];
chart.frame=CGRectMake(0, 0, 600, 550);
chart.backgroundColor = [UIColor whiteColor];
chart.plotArea.zoomEnabled = NO;
// Determine title parameters
chart.caption.text = @"Chart";
chart.caption.textColor = [UIColor blackColor];
chart.caption.maxTextLength = 100;
chart.caption.blockAlignment = AlignmentCenter;
SolidColorBrush *br = [SolidColorBrush new];
br.color = [UIColor lightGrayColor];
// Determine legend parameters
chart.legend.background = [br autorelease];
chart.legend.borderRadius = 2;
chart.legend.borderThickness = 1;
chart.legend.borderColor = [UIColor whiteColor];
chart.legend.font = [UIFont fontWithName:@"Arial" size:12];
chart.legend.legendOrientation = LegendOrientationTop;
chart.legend.textColor = [UIColor blackColor];
chart.chartArea.borderColor = [UIColor whiteColor];
LinearGradientBrush *linGradBrush = [LinearGradientBrush new];
linGradBrush.startPoint = CGPointMake(0, 0);
linGradBrush.endPoint = CGPointMake(0, 1);
GradientStop *st1 = [[GradientStop alloc] initWithColor:[UIColor whiteColor] offset:0.2];
GradientStop *st2 = [[GradientStop alloc] initWithColor:[UIColor grayColor] offset:0.95];
[linGradBrush.gradientStops addObject:st1];
[linGradBrush.gradientStops addObject:st2];
chart.chartArea.background = linGradBrush;
chart.usingRightToLeft = NO;
chart.minimalHitRadius = 4;
// Create a data source
datasource = [[DataSource alloc] init];
[self setChartSettings];
solidBrush = [SolidColorBrush new];
solidBrush.color = [UIColor blackColor];
[self drawAllSeries];
// Set link to data source
[chart setDataSource :datasource];
[chart setDelegate:self];
// Set maximum and minimum border values along Y axis for data source
[datasource prepare];
for (ChartSeries *series in chart.seriesList) {
[series forceDataUpdate];
}
// Execute custom example
[self executeExample];
// Display chart
[self.view addSubview:chart];
}
// Function for example execution
-(void) executeExample{
};
- (void)drawAllSeries
{
[chart deleteAllSeries];
NSMutableDictionary *dict1 = [NSMutableDictionary new];
int seriesCount = datasource.countSeries;
for (int i = 0; i < seriesCount; ++i)
{
UIColor *color = [m_colors objectAtIndex:i % [m_colors count]];
axisType = ValueAxisAbsolute;
hideAxis = NO;
LineSeries *ser = [[LineSeries new] autorelease];
ser.backgroundColor = color;
ser.marker.borderThickness = 1;
ser.marker.borderColor = [UIColor blackColor];
ser.markerBackground = [SolidColorBrush solidColorBrushWithColor:color];
ser.noDataColor = [UIColor blueColor];
ser.showShadow = NO;
ser.dataIndex = i;
ser.markerSize = 10;
ser.thickness = 2;
ser.defaultLabel = [self createDefaultLabel];
[chart addSeries:ser];
}
[chart forceDataUpdate];
((ValueAxis *)[chart.axes objectForKey:[NSNumber numberWithInt:AxisLineX]]).valueAxisType = axisType;
((ValueAxis *)[chart.axes objectForKey:[NSNumber numberWithInt:AxisLineY]]).valueAxisType = axisType;
((ValueAxis *)[chart.axes objectForKey:[NSNumber numberWithInt:AxisLineX]]).visible = !hideAxis;
((ValueAxis *)[chart.axes objectForKey:[NSNumber numberWithInt:AxisLineY]]).visible = !hideAxis;
NSLog(@"%@",dict1);
[dict1 release];
}
- (void )viewDidUnload
{
[super viewDidUnload];
}
- (BOOL )shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (void )chartTouchesTapInView:(UIView *)v withPoint:(CGPoint)point
{
UIView *sender = [v hitTest:point withEvent:nil];
if ([sender isKindOfClass:[ChartPoint class]])
{
ChartPoint *pt = (ChartPoint *)sender;
if (pt.chartLabel)
{
pt.chartLabelVisible = !pt.chartLabelVisible;
if (pt.chartLabelVisible)
{
[pt moveAboveAllByZOrder];
((LinePoint *)pt).markerSize *= 1.1;
((LinePoint *)pt).marker.borderThickness = 2;
}
else
{
[pt restoreZOrder];
((LinePoint *)pt).markerSize *= 1.1;
((LinePoint *)pt).marker.borderThickness = 1;
}
}
[chart setNeedsLayout];
}
}
- (void)setChartSettings
{
ValueAxis *axisX = (ValueAxis *)[chart.axes objectForKey:[NSNumber numberWithInt:AxisLineX]];
axisX.axisThickness = 1; // X axis thickness
axisX.majorTicks.thickness = 0; // Thickness of major tick marks on X axis
axisX.minorTicks.thickness = 0; // Thickness of minor tick marks on X axis
ValueAxis *axisY = (ValueAxis *)[chart.axes objectForKey:[NSNumber numberWithInt:AxisLineY]];
axisY.axisThickness = 1; // Y axis thickness
axisY.majorTicks.thickness = 1;
axisY.majorTicks.size = 3; // Tick mark length
axisY.minorTicks.thickness = 0;
axisY.showGrid = NO;
TimeAxis *timeAxis = ((TimeAxis *)[chart.axes objectForKey:[NSNumber numberWithInt:AxisTypeTimeline]]);
timeAxis.visible = NO;
Thickness th = {10,0,0,20}; // Margins
chart.legend.margin = th; // Legend margins
th.bottom = 20;
th.left = th.right = th.top = 10;
chart.chartArea.padding = th; // Chart area margins
}
- (ChartLabel *)createDefaultLabel
{
ChartLabel *result = [[[ChartLabel alloc] initWithFrame:CGRectZero] autorelease]; // Create a label
result.background = [[SolidColorBrush new] autorelease]; // Set color
result.borderColor = [UIColor blackColor]; // Determine border color
result.borderThickness = 1;
result.borderRadius = 10;
result.font = [UIFont fontWithName:@"Arial" size:18]; // Font
result.textAlignment = UITextAlignmentCenter;
result.textColor = [UIColor blackColor];
result.mask = [NSString stringWithFormat:@"%@#FVAL%@",
(NSString *)[m_numberFormat objectForKey:@"prefix"],
(NSString *)[m_numberFormat objectForKey:@"suffix"]];
result.countOfDecimalNumbers = [((NSNumber *)[m_numberFormat objectForKey:@"decNumbers"]) intValue];
result.displayNegativesInRed = [(NSNumber *)[m_numberFormat objectForKey:@"negativeRed"] boolValue];
result.hasHorizontalNoteLine = result.hasVerticalNoteLine = result.hasFootNoteLine = NO;
result.minWidth = 0;
return result;
}
- (void)chartDataReady:(id)sender
{
NSLog(@"Data was load");
}
- (void)chartTouchesSwipeInView:(UIView *)v withDirection:(UISwipeGestureRecognizerDirection)direction
{
NSLog(@"Swipe");
}
- (void)timeAxis:(TimeAxis *)timeAxis setDoubleIndex:(double)idx
{
NSLog(@"%f",idx);
}
- (void)timeAxis:(TimeAxis *)timeAxis setIndex:(int)idx
{
NSLog(@"%d",idx);
}
@end
See also: