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  1. PO
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    <p>i have done something you want like this code. Sorry i don't make it clear code here but just pasting whole method what i am using here.</p> <p>i hope this may help what you want. Here i have implemented graph in new way that you can refresh it like tableview. just change values of array then call [graph reloadData];</p> <pre><code>- (void)constructScatterPlotForFeedback { // Create graph from theme [graph release]; graph = [[CPXYGraph alloc] initWithFrame:CGRectZero]; graph.delegate = self; CPTheme *theme = [CPTheme themeNamed:kCPPlainWhiteTheme]; [graph applyTheme:theme]; feedbackChart.hostedGraph = graph; [feedbackChart setBackgroundColor:[UIColor clearColor]]; graph.paddingLeft = 0.0; graph.paddingTop = 0.0; graph.paddingRight = 0.0; graph.paddingBottom = 0.0; graph.plotAreaFrame.paddingLeft = 5.0; graph.plotAreaFrame.paddingTop = 10.0; graph.plotAreaFrame.paddingRight = 10.0; graph.plotAreaFrame.paddingBottom = 10.0; NSTimeInterval oneHour = 60 * 60; // Setup plot space CPXYPlotSpace *plotSpace = (CPXYPlotSpace *)graph.defaultPlotSpace; plotSpace.allowsUserInteraction = YES; plotSpace.delegate = self; float xRange; xRange = [chartData count] + 1.0; if (xRange&gt;5) { xRange = 5.0; } plotSpace.xRange = [CPPlotRange plotRangeWithLocation:CPDecimalFromFloat(0.0) length:CPDecimalFromFloat(fiveHour*3)]; plotSpace.yRange = [CPPlotRange plotRangeWithLocation:CPDecimalFromFloat(-20.0) length:CPDecimalFromFloat(40.0)]; CPLineStyle *gridline = [CPLineStyle lineStyle]; gridline.lineColor = [CPColor grayColor]; gridline.lineWidth = 1.0f; // Axes CPXYAxisSet *axisSet = (CPXYAxisSet *)graph.axisSet; CPXYAxis *x = axisSet.xAxis; // x.orthogonalCoordinateDecimal = CPDecimalFromString(@"0"); x.majorIntervalLength = CPDecimalFromFloat(fiveHour); //x.majorIntervalLength = CPDecimalFromFloat(10.0); //x.majorIntervalLength = CPDecimalFromString(@"10"); x.minorTicksPerInterval = 0; x.labelOffset=0; // x.labelingPolicy = CPAxisLabelingPolicyNone; NSDate *refDate = [NSDate date]; NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease]; // dateFormatter.dateStyle = kCFTimeZoneNameStyleShortGeneric; dateFormatter.dateFormat = @"HH:mm:ss"; // dateFormatter.dateStyle = kCFDateFormatterShortStyle; CPTimeFormatter *timeFormatter = [[[CPTimeFormatter alloc] init WithDateFormatter:dateFormatter] autorelease]; timeFormatter.referenceDate = refDate; x.labelFormatter = timeFormatter; //NSLog(@"refence date : %@", timeFormatter); CPXYAxis *y = axisSet.yAxis; y.minorTicksPerInterval = 0; y.orthogonalCoordinateDecimal = CPDecimalFromString(@"0.0"); y.majorIntervalLength = CPDecimalFromString(@"5"); y.majorGridLineStyle = nil; //y.visibleRect y.visibleRange = [CPPlotRange plotRangeWithLocation:CPDecimalFromFloat(-20.0f) length:CPDecimalFromFloat(40.0f)]; CPConstraints yConstraints = {CPConstraintNone, CPConstraintFixed}; y.isFloatingAxis=YES; y.constraints=yConstraints; // Create a green plot area CPScatterPlot *dataSourceLinePlot = [[[CPScatterPlot alloc] init] autorelease]; dataSourceLinePlot.identifier = @"FeedBack Plot"; dataSourceLinePlot.dataLineStyle.lineWidth = 3.f; dataSourceLinePlot.dataLineStyle.lineColor = [CPColor blackColor]; dataSourceLinePlot.dataLineStyle.dashPattern = [NSArray arrayWithObjects:[NSNumber numberWithFloat:1.0f], [NSNumber numberWithFloat:1.0f], nil]; dataSourceLinePlot.dataSource = self; // Animate in the new plot, as an example dataSourceLinePlot.opacity = 0.0f; dataSourceLinePlot.cachePrecision = CPPlotCachePrecisionDecimal; CABasicAnimation *fadeInAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"]; fadeInAnimation.duration = 1.0f; fadeInAnimation.removedOnCompletion = NO; fadeInAnimation.fillMode = kCAFillModeForwards; fadeInAnimation.toValue = [NSNumber numberWithFloat:1.0]; [dataSourceLinePlot addAnimation:fadeInAnimation forKey:@"animateOpacity"]; CPColor *areaColor1 = [CPColor colorWithComponentRed:0.3 green:0.3 blue:1.0 alpha:0.8]; CPGradient *areaGradient1 = [CPGradient gradientWithBeginningColor:areaColor1 endingColor:[CPColor clearColor]]; areaGradient1.angle = -90.0f; NSUInteger i; [graph addPlot:dataSourceLinePlot]; NSMutableArray *contentArray1 = [NSMutableArray arrayWithCapacity:100]; NSMutableArray *customTickLocations = [[NSMutableArray alloc] init]; NSMutableArray *xAxisLabels = [[NSMutableArray alloc] init]; for ( i = 0; i &lt; [chartData count]; i++ ) { //for ( i = 0; i &lt; 10; i++ ) { [customTickLocations addObject:[NSDecimalNumber numberWithInt:i]]; [xAxisLabels addObject:[NSString stringWithFormat:@"%0.1f", 5.0 * i]]; Pulse *objPulse1 = (Pulse *)[chartData objectAtIndex:i]; //id x = [NSNumber numberWithFloat:i*fiveHour]; id x = [NSNumber numberWithFloat:i]; id y = [NSNumber numberWithFloat:[objPulse1.feedBack floatValue]]; NSLog(@"point of gragh for Performance x:%@, y : %@ ", x, y); [contentArray1 addObject:[NSMutableDictionary dictionaryWithObjectsAndKeys:x, @"x", y, @"y", nil]]; } NSLog(@"Axis lable count : %d", [xAxisLabels count]); NSMutableArray *customLabels = [NSMutableArray arrayWithCapacity:[chartData count]]; NSUInteger labelLocation = 0; for (NSNumber *tickLocation in customTickLocations) { NSLog(@"&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt; tick location"); CPAxisLabel *newLabel = [[CPAxisLabel alloc] initWithText: [xAxisLabels objectAtIndex:labelLocation++] textStyle:x.labelTextStyle]; newLabel.tickLocation = [tickLocation decimalValue]; newLabel.offset = x.labelOffset + x.majorTickLength - 5.0f; // newLabel.rotation = M_PI/(2); newLabel.rotation = 0; [customLabels addObject:newLabel]; [newLabel release]; } x.axisLabels = [NSSet setWithArray:customLabels]; // [arrScatter removeAllObjects]; arrScatter = contentArray1; [arrScatter retain]; // NSLog(@"&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt; :%d", [arrScatter count]); } -(NSUInteger)numberOfRecordsForPlot:(CPPlot *)plot { if ( [(NSString *)plot.identifier isEqualToString:@"FeedBack Plot"] ) { return [chartData count]; // return 10; } return 0; } -(NSNumber *)numberForPlot:(CPPlot *)plot field:(NSUInteger)fieldEnum recordIndex:( NSUInteger)index { switch ( fieldEnum ) { case CPScatterPlotFieldX: return (NSDecimalNumber *)[NSDecimalNumber numberWithUnsignedInteger:index*fiveHour]; case CPScatterPlotFieldY: { Pulse *objPulse1 = (Pulse *)[chartData objectAtIndex:index]; return [NSNumber numberWithFloat:[objPulse1.feedBack floatValue]]; } } return nil; } -(CGPoint)plotSpace:(CPPlotSpace *)space willDisplaceBy:(CGPoint)displacement { // NSLog(@"&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt; : %f", displacement.x); return CGPointMake(displacement.x, 0); } /* -(NSNumber *)numberForPlot:(CPPlot *)plot field:(NSUInteger)fieldEnum recordIndex: (NSUInteger)index { NSDecimalNumber *num = nil; if ( [(NSString *)plot.identifier isEqualToString:@"FeedBack Plot"] ) { if ( [arrScatter count] != 0) { num = [[arrScatter objectAtIndex:index] valueForKey:(fieldEnum == CPScatterPlotFieldX ? @"x" : @"y")]; } } return num; } */ -(CPLayer *)dataLabelForPlot:(CPPlot *)plot recordIndex:(NSUInteger)index { Pulse *objPulse1 = (Pulse *)[chartData objectAtIndex:index]; float value = [objPulse1.feedBack floatValue]; //CPTextLayer *textLayer = [[CPTextLayer alloc] initWithText:[NSString stringWithFormat:@"%d", value]]; CPTextStyle *textStyle = [CPTextStyle textStyle]; textStyle.color = [CPColor blackColor]; CPTextLayer *textLayer = [[CPTextLayer alloc] initWithText:[NSString stringWithFormat:@"%0.1f", value] style:textStyle]; return textLayer; } </code></pre>
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    1. POhow to plot months of the year on x-axis using core plot in iphone
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    1. USBittu
    1. USNilesh Kikani
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    1. COit is not working for me can u send the copy of the total file of that...
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    2. COSorry i can't send it to you. i have just sent you logic and you just need to focus only on NSDate *refDate = [NSDate date]; NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease]; // dateFormatter.dateStyle = kCFTimeZoneNameStyleShortGeneric; dateFormatter.dateFormat = @"HH:mm:ss"; // dateFormatter.dateStyle = kCFDateFormatterShortStyle; CPTimeFormatter *timeFormatter = [[[CPTimeFormatter alloc] initWithDateFormatter:dateFormatter] autorelease]; timeFormatter.referenceDate = refDate; x.labelFormatter = timeFormatter; just use formatter in your code in your code
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      1. USNilesh Kikani
    3. COjust keep my logic a side
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      1. USNilesh Kikani
 

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