Question

该屏幕快照显示了相同数据在有和没有立方贝塞尔曲线模式下的图表。如您所见，当启用三次贝塞尔曲线模式时，该行将最小值和最大值替换为我需要在图表中显示为LimitLine，这看起来非常糟糕。

有什么办法可以解决这个问题？

private void setData(int count, float range) {

    ArrayList<Entry> yVals = new ArrayList<Entry>();

    float max = - Float.MAX_VALUE, min = Float.MAX_VALUE;
    for (int i = 0; i < count; i++) {
        float mult = (range + 1);
        float val = (float) (Math.random() * mult) + 20;// + (float)
                                                       // ((mult *
                                                       // 0.1) / 10);
        yVals.add(new Entry(i, val));

        if(val<min){
            min = val;
        }
        if(val>max){
            max = val;
        }

    }

    LineDataSet set1;

    if (mChart.getData() != null &&
            mChart.getData().getDataSetCount() > 0) {
        set1 = (LineDataSet)mChart.getData().getDataSetByIndex(0);
        set1.setValues(yVals);
        mChart.getData().notifyDataChanged();
        mChart.notifyDataSetChanged();
    } else {
        // create a dataset and give it a type
        set1 = new LineDataSet(yVals, "DataSet 1");

        set1.setMode(LineDataSet.Mode.CUBIC_BEZIER);
        set1.setCubicIntensity(0.2f);
        //set1.setDrawFilled(true);
        set1.setDrawCircles(false);
        set1.setLineWidth(1.8f);
        set1.setCircleRadius(4f);
        set1.setCircleColor(Color.BLACK);
        set1.setHighLightColor(Color.rgb(244, 117, 117));
        set1.setColor(Color.parseColor("#16315d"));
        set1.setFillColor(Color.RED);
        GradientDrawable d = new GradientDrawable(GradientDrawable.Orientation.BOTTOM_TOP, new int[]{Color.BLACK, Color.RED});
        set1.setFillAlpha(220);
        set1.setFillDrawable(d);


        set1.setFillAlpha(100);
        set1.setDrawHorizontalHighlightIndicator(false);
        set1.setFillFormatter(new IFillFormatter() {
            @Override
            public float getFillLinePosition(ILineDataSet dataSet, LineDataProvider dataProvider) {
                return -10;
            }
        });

        // create a data object with the datasets
        LineData data = new LineData(set1);
        data.setValueTypeface(mTfLight);
        data.setValueTextSize(9f);
        data.setDrawValues(false);

        // set data
        mChart.setData(data);
    }

    YAxis yAxis = mChart.getAxisLeft();
    yAxis.removeAllLimitLines();

    LimitLine lMin = new LimitLine(min, Float.toString(min));
    lMin.setLabelPosition(LimitLine.LimitLabelPosition.LEFT_BOTTOM);

    LimitLine lMax = new LimitLine(max, Float.toString(max));
    lMax.setLabelPosition(LimitLine.LimitLabelPosition.LEFT_TOP);

    yAxis.addLimitLine(lMin);
    yAxis.addLimitLine(lMax);

}

Answer 1

对于未来的访客，答案是不打电话：

lineDataSet.setMode(LineDataSet.Mode.CUBIC_BEZIER);

代替使用：

lineDataSet.setMode(LineDataSet.Mode.HORIZONTAL_BEZIER);

MPAndroid图表-LimitLine和Cubic Bezier绘图-曲线超出了最小-最大限制线

1 个答案: