Don't Display the Axis line in bar chart using core plot

问题

i dont want show Axis line in bar graph view. i want to show only the bar plot how can i remove that Axis line?

that is whenever i run the application its showing XY Axis but where i can remove for wont display that Axis line. i cant add image so i added code here

see my code here:

  - (void)generateData
  {
  NSMutableDictionary *dataTemp = [[NSMutableDictionary alloc] init];

   //Array containing all the dates that will be displayed on the X axis
   dates = [NSArray arrayWithObjects:@"A", @"B", @"C", 
         @"D", @"E", nil];

//Dictionary containing the name of the two sets and their associated color
//used for the demo
sets = [NSDictionary dictionaryWithObjectsAndKeys:[UIColor redColor], @"Plot 1", nil];

//Generate random data for each set of data that will be displayed for each day
//Numbers between 1 and 10
for (NSString *date in dates) {
    NSMutableDictionary *dict = [NSMutableDictionary dictionary];
    for (NSString *set in sets) {


        NSNumber *num = [NSNumber numberWithInt:arc4random_uniform(8)+1];


        [dict setObject:num forKey:set];
    }
    [dataTemp setObject:dict forKey:date];
}

data = [dataTemp copy];

NSLog(@"%@", data);
 }
- (void)generateLayout
{
//Create graph from theme
graph                               = [[CPTXYGraph alloc] initWithFrame:CGRectMake(0, 0, 320, 400)];
self.hostedGraph                    = graph;
/*graph.paddingLeft                   = 25.0;
graph.paddingTop                    = 10.0;
graph.paddingRight                  = 10.0;
graph.paddingBottom                 = 50.0;
*/

//Add plot space
CPTXYPlotSpace *plotSpace       = (CPTXYPlotSpace *)graph.defaultPlotSpace;
plotSpace.delegate              = self;
plotSpace.yRange                = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(0) 
                                                               length:CPTDecimalFromFloat(10.0f)];
plotSpace.xRange                = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(-1.0f) 
                                                               length:CPTDecimalFromFloat(8.0f)];


//Create a bar line style
CPTMutableLineStyle *barLineStyle   = [[CPTMutableLineStyle alloc] init];
barLineStyle.lineWidth              = 1.0;
barLineStyle.lineColor              = [CPTColor whiteColor];
CPTMutableTextStyle *whiteTextStyle = [CPTMutableTextStyle textStyle];
whiteTextStyle.color                = [CPTColor whiteColor];





 //Plot
 BOOL firstPlot = YES;


for (NSString *set in [[sets allKeys] sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)]) {


    CPTBarPlot *plot        = [CPTBarPlot tubularBarPlotWithColor:[CPTColor blueColor] horizontalBars:NO];
   plot.lineStyle          = barLineStyle;
    CGColorRef color        = ((UIColor *)[sets objectForKey:set]).CGColor;
    plot.fill               = [CPTFill fillWithColor:[CPTColor colorWithCGColor:color]];
    if (firstPlot) {
        plot.barBasesVary   = NO;
        firstPlot           = NO;
    } else {
        plot.barBasesVary   = YES;
    }
    plot.barWidth           = CPTDecimalFromFloat(0.5f);
    plot.barOffset=CPTDecimalFromFloat(0.5f);
    plot.barsAreHorizontal  = NO;
    plot.dataSource         = self;
    plot.identifier         = set;
    [graph addPlot:plot toPlotSpace:plotSpace];

    [plotSpace scaleToFitPlots:[graph allPlots]];
}




//Add legend
CPTLegend *theLegend      = [CPTLegend legendWithGraph:graph];
theLegend.numberOfRows    = sets.count;
theLegend.fill            = [CPTFill fillWithColor:[CPTColor colorWithGenericGray:0.15]];
theLegend.borderLineStyle = barLineStyle;
theLegend.cornerRadius    = 10.0;
theLegend.swatchSize      = CGSizeMake(15.0, 15.0);
whiteTextStyle.fontSize   = 13.0;
theLegend.textStyle       = whiteTextStyle;
theLegend.rowMargin       = 5.0;
theLegend.paddingLeft     = 10.0;
theLegend.paddingTop      = 10.0;
theLegend.paddingRight    = 10.0;
theLegend.paddingBottom   = 10.0;
graph.legend              = theLegend;
graph.legendAnchor        = CPTRectAnchorTopLeft;
graph.legendDisplacement  = CGPointMake(80.0, -10.0);

}

 - (void)createGraph
{
//Generate data
[self generateData];


//Generate layout
[self generateLayout];
}



   #pragma mark - CPTPlotDataSource methods

  - (NSUInteger)numberOfRecordsForPlot:(CPTPlot *)plot
{
return dates.count;
}

   - (double)doubleForPlot:(CPTPlot *)plot field:(NSUInteger)fieldEnum recordIndex:  (NSUInteger)index
{


 double num = NAN;

//X Value
if (fieldEnum == 0) {
    num = index;
}

else {
    double offset =0;

    if (((CPTBarPlot *)plot).barBasesVary) {

        for (NSString *set in [[sets allKeys] sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)]) {

            if ([plot.identifier isEqual:set]) {

                break;
            }
            offset += [[[data objectForKey:[dates objectAtIndex:index]]  objectForKey:set] doubleValue];
        }
    }


    //Y Value
    if (fieldEnum == 1) {
        num = [[[data objectForKey:[dates objectAtIndex:index]]     objectForKey:plot.identifier] doubleValue] + offset;
    }


    //Offset for stacked bar
    else {
        num = offset;
    }
}

//NSLog(@"%@ - %d - %d - %f", plot.identifier, index, fieldEnum, num);

return num;
  }

  @end

回答1:

Using [CPTLineStyle lineStyle] will give a thin black line. You can also create a CPTMutableLineStyle and modify the style properties including the color, width, line join, and dash pattern to customize the look

also try with this bellow line

set minorTickLineStyle properties to nil

for more details see this link

HighLevelDesignOverview

for CPTLineStyle , you can get information from this link..

CPTLineStyle

来源：https://stackoverflow.com/questions/13469267/dont-display-the-axis-line-in-bar-chart-using-core-plot