position of x-Axis is flexible and hides the labels

I have a problem of the correct presentation of x and y axis. 
I just want to set 2 things:
1. I only wanted to have postive axis
2. the axis-position should be on the left bottom

That what I have :

I have positive axis, but it seems to be floating depenting on the highest 
value from one plot. That means is the highest value = 1 the x-axis is shown at 
the mittle of the screen. Is the highest value = 100, the x-axis is shown at 
the bottom and the labels are not longer visible.

Did you have an idea or tipp to fix this?
Thanks :-)

thats my code:

graph = [[CPTXYGraph alloc] initWithFrame: self.view.bounds];

    CPTTheme *theme = [CPTTheme themeNamed:kCPTDarkGradientTheme];
    [graph applyTheme:theme];

    hostingView.autoresizesSubviews = YES;     

    [hostingView setHostedGraph:graph];
    graph.paddingLeft = 20.0;
    graph.paddingTop = 20.0;
    graph.paddingRight = 20.0;
    graph.paddingBottom = 20.0;

    plotSpace = (CPTXYPlotSpace *)graph.defaultPlotSpace;
    plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(-0.8f)
                                                    length:CPTDecimalFromFloat(9.0f)];
    plotSpace.yRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(-3.0f) 
                                                    length:CPTDecimalFromInt(highestValue*2)];

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

    //X-Axis
    axisSet.xAxis.labelRotation = M_PI/4;
    axisSet.xAxis.labelingPolicy = CPTAxisLabelingPolicyNone;

    NSArray *customTickLocations = [NSArray arrayWithObjects:[NSDecimalNumber numberWithFloat:0.8f], [NSDecimalNumber numberWithFloat:1.8f], nil];
    NSArray *xAxisLabels = [NSArray arrayWithObjects:@"total", @"today", nil];
    NSUInteger labelLocation = 0;
    NSMutableArray *customLabels = [NSMutableArray arrayWithCapacity:[xAxisLabels count]];
    for (NSNumber *tickLocation in customTickLocations) {
        CPTAxisLabel *newLabel = [[CPTAxisLabel alloc] initWithText: [xAxisLabels objectAtIndex:labelLocation++] textStyle:axisSet.xAxis.labelTextStyle];
        newLabel.tickLocation = [tickLocation decimalValue];
        newLabel.offset = -1.0f;
        newLabel.rotation = M_PI/4;
        [customLabels addObject:newLabel];
        [newLabel release];
    }

    axisSet.xAxis.axisLabels =  [NSSet setWithArray:customLabels];

    axisSet.xAxis.visibleRange  = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromInteger(0)
                                                        length:CPTDecimalFromInteger(4)];

    //Y-Axis
    axisSet.yAxis.majorIntervalLength = CPTDecimalFromFloat(5);
    axisSet.yAxis.minorTicksPerInterval = 4;
    axisSet.yAxis.minorTickLength = 1.0f;
    axisSet.yAxis.majorTickLength = 1.0f;
    axisSet.yAxis.labelOffset = 3.0f;

    axisSet.yAxis.visibleRange  = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromInteger(0)
                                                               length:CPTDecimalFromInteger(highestValue)];

    //blue Plot
    CPTBarPlot *barPlot = [CPTBarPlot tubularBarPlotWithColor:[CPTColor blueColor] horizontalBars:NO];
    barPlot.identifier = @"blue";
    barPlot.barOffset = CPTDecimalFromFloat(0.8f);
    barPlot.dataSource = self;

    [graph addPlot:barPlot toPlotSpace:plotSpace];

    [self.view addSubview:hostingView];
    [graph release];
Original issue reported on code.google.com by hus...@bossmail.de on 6 Sep 2011 at 11:33
gujjula / core-plot

position of x-Axis is flexible and hides the labels #328
