Shinobi限制軸範圍值iOS圖表

我使用Shinobi iOS控件在我的應用程序中繪製折線圖。我目前正在渲染一個嚴重的0值。結果圖是這樣的：Shinobi限制軸範圍值iOS圖表

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現在的問題是，我代表數量的貨幣，因此不能爲負數。在這種特定情況下，我如何限制範圍從0開始？

這是如何創建的圖形：

// initiatialise line chart 
    ShinobiChart *chartView = [[ShinobiChart alloc]initWithFrame:frame]; 
    chartView.clipsToBounds = NO; 
    //Choose the light theme for this chart 
    SChartLightTheme *theme = [SChartLightTheme new]; 
    //perform any theme stylign here before applying to the chart 
    chartView.theme = theme; 
    chartView.title = @"my Title"; 
    chartView.autoresizingMask = UIViewAutoresizingNone; 
    // Use a number axis for the x axis. 
    SChartDateTimeAxis *xAxis = [[SChartDateTimeAxis alloc] init]; 
    xAxis.title = @"date"; 
    xAxis.tickLabelClippingModeHigh = SChartTickLabelClippingModeTicksAndLabelsPersist; 
//keep tick marks at the right end 
    //Make some space at the axis limits to prevent clipping of the datapoints 
    xAxis.rangePaddingHigh = [SChartDateFrequency dateFrequencyWithDay:1]; 
    xAxis.rangePaddingLow = [SChartDateFrequency dateFrequencyWithDay:1]; 
    //allow zooming and panning 
    xAxis.enableGesturePanning = YES; 
    xAxis.enableGestureZooming = YES; 
    xAxis.enableMomentumPanning = YES; 
    xAxis.enableMomentumZooming = YES; 
    chartView.xAxis = xAxis; 
    // Use a number axis for the y axis. 
    SChartNumberAxis *yAxis = [[SChartNumberAxis alloc] init]; 
    yAxis.title = @"Value"; 
    yAxis.enableGesturePanning = YES; 
    yAxis.enableGestureZooming = YES; 
    yAxis.enableMomentumPanning = YES; 
    yAxis.enableMomentumZooming = YES; 
    yAxis.title = @"Value"; 
    yAxis.style.titleStyle.position = SChartTitlePositionBottomOrLeft; 
    chartView.yAxis = yAxis; 
    chartView.userInteractionEnabled = YES; 
    chartView.gesturePanType = SChartGesturePanTypeNone;

來源

2013-08-06 Claus

我使用了一個簡單的ShinobiChart子類。通常範圍始終在最低和最高值之間。現在圖表反應是這樣的，因爲在這種情況下沒有提供極端值，但我更願意將最低極值設置爲0. – Claus

您是對的......完成:) – Claus

當您初始化yAxis SChartNumberAxis時可以嘗試使用具有適當SChartNumberRange的initWithRange：instance方法。 –

yAxis.anchorPoint = @ 0;

設置此，它應該解決您的問題。

來源

2013-11-29 09:37:48 Rajesh

Shinobi限制軸範圍值iOS圖表

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