Java Code Examples for com.github.mikephil.charting.components.YAxis#setGranularity()

private void setupYAxis()
{
    int valuesSelectedItemPos = cache.getValuesSpinner().getSelectedItemPosition();
    YAxis leftAxis = this.chart.getAxisLeft();
    leftAxis.setLabelCount(10, false);
    leftAxis.setPosition(YAxis.YAxisLabelPosition.OUTSIDE_CHART);
    leftAxis.setSpaceTop(20f);
    leftAxis.setAxisMinValue(0f);
    leftAxis.setValueFormatter(new PFAYAxisLabels(context, valuesSelectedItemPos, cache.getNumberScale()));

    if ( valuesSelectedItemPos == StatisticsQuery.QUANTITY )
    {
        leftAxis.setGranularity(1f); // interval 1
    }

    YAxis rightAxis = this.chart.getAxisRight();
    rightAxis.setEnabled(false);
}
 

public LineChart generateLineChartConfig(LineChart lineChart) {

        //XY轴配置
        XAxis xAxis = lineChart.getXAxis();
        xAxis.setPosition(XAxis.XAxisPosition.BOTTOM); //定制X轴是在图表上方还是下方。
        xAxis.setDrawGridLines(false);
        xAxis.setGranularity(1);
        YAxis yAxisRight = lineChart.getAxisRight();
        yAxisRight.setEnabled(false);
        YAxis yAxisLeft = lineChart.getAxisLeft();
        yAxisLeft.setAxisMinimum(0);
        yAxisLeft.setGranularity(1);

        //背景设置
        lineChart.setDrawGridBackground(false);//表格背景绘制
        lineChart.setBackgroundColor(AppContext.getContext().getResources().getColor(R.color.white));
        //Legend定制
        lineChart.getLegend().setPosition(Legend.LegendPosition.ABOVE_CHART_LEFT);
        lineChart.getLegend().setForm(Legend.LegendForm.CIRCLE);//Legend样式
        //图表描述
        lineChart.setDescription(null);
        // 设置无数据文本提示
        lineChart.setNoDataText("暂无数据");
        //设置单方向和双方向缩放 true x,y方向可以同时控制，false只能控制x方向的缩小放大或者Y方向的缩小放大
        lineChart.setPinchZoom(true);
        return lineChart;
    }
 

public BarGraph(Context context, BarChart chart, String name) {
    mChart = chart;
    mChartName = name;
    mChart.setHorizontalScrollBarEnabled(true);
    mChart.setVerticalScrollBarEnabled(true);
    mChart.setDrawBorders(true);
    mChart.setNoDataText(context.getString(R.string.no_chart_data_available));

    mContext = context;
    // get the legend (only possible after setting data)
    Legend l = mChart.getLegend();
    l.setEnabled(false);

    XAxis xAxis = mChart.getXAxis();
    xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
    xAxis.setTextColor(ColorTemplate.getHoloBlue());
    xAxis.setDrawAxisLine(false);
    xAxis.setGranularityEnabled(true);
    xAxis.setGranularity(1f);

    YAxis leftAxis = mChart.getAxisLeft();
    leftAxis.setAxisMinimum(0f);
    leftAxis.setPosition(YAxis.YAxisLabelPosition.OUTSIDE_CHART);
    leftAxis.setTextColor(ColorTemplate.getHoloBlue());
    leftAxis.setGranularityEnabled(true);
    leftAxis.setGranularity((float) 1);

    mChart.setFitBars(true);
    leftAxis.setAxisMinimum(0f);

    mChart.getAxisRight().setEnabled(false);
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_barchart_sinus);

    setTitle("BarChartActivitySinus");

    data = FileUtils.loadBarEntriesFromAssets(getAssets(), "othersine.txt");

    tvX = findViewById(R.id.tvValueCount);

    seekBarX = findViewById(R.id.seekbarValues);

    chart = findViewById(R.id.chart1);

    chart.setDrawBarShadow(false);
    chart.setDrawValueAboveBar(true);

    chart.getDescription().setEnabled(false);

    // if more than 60 entries are displayed in the chart, no values will be
    // drawn
    chart.setMaxVisibleValueCount(60);

    // scaling can now only be done on x- and y-axis separately
    chart.setPinchZoom(false);

    // draw shadows for each bar that show the maximum value
    // chart.setDrawBarShadow(true);

    // chart.setDrawXLabels(false);

    chart.setDrawGridBackground(false);
    // chart.setDrawYLabels(false);

    XAxis xAxis = chart.getXAxis();
    xAxis.setEnabled(false);

    YAxis leftAxis = chart.getAxisLeft();
    leftAxis.setTypeface(tfLight);
    leftAxis.setLabelCount(6, false);
    leftAxis.setAxisMinimum(-2.5f);
    leftAxis.setAxisMaximum(2.5f);
    leftAxis.setGranularityEnabled(true);
    leftAxis.setGranularity(0.1f);

    YAxis rightAxis = chart.getAxisRight();
    rightAxis.setDrawGridLines(false);
    rightAxis.setTypeface(tfLight);
    rightAxis.setLabelCount(6, false);
    rightAxis.setAxisMinimum(-2.5f);
    rightAxis.setAxisMaximum(2.5f);
    rightAxis.setGranularity(0.1f);

    seekBarX.setOnSeekBarChangeListener(this);
    seekBarX.setProgress(150); // set data

    Legend l = chart.getLegend();
    l.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM);
    l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.LEFT);
    l.setOrientation(Legend.LegendOrientation.HORIZONTAL);
    l.setDrawInside(false);
    l.setForm(LegendForm.SQUARE);
    l.setFormSize(9f);
    l.setTextSize(11f);
    l.setXEntrySpace(4f);

    chart.animateXY(1500, 1500);
}
 

public DateGraph(Context context, LineChart chart, String name) {
    mChart = chart;
    mChartName = name;
    mChart.setDoubleTapToZoomEnabled(true);
    mChart.setHorizontalScrollBarEnabled(true);
    mChart.setVerticalScrollBarEnabled(true);
    mChart.setAutoScaleMinMaxEnabled(true);
    mChart.setDrawBorders(true);
    mChart.setNoDataText(context.getString(R.string.no_chart_data_available));

    IMarker marker = new DateGraphMarkerView(mChart.getContext(), R.layout.graph_markerview, mChart);
    mChart.setMarker(marker);

    mContext = context;
    // get the legend (only possible after setting data)
    Legend l = mChart.getLegend();
    l.setEnabled(false);

    XAxis xAxis = mChart.getXAxis();
    xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
    xAxis.setTextColor(ColorTemplate.getHoloBlue());
    xAxis.setDrawAxisLine(true);
    xAxis.setDrawGridLines(true);
    xAxis.setCenterAxisLabels(false);
    xAxis.setGranularity(1); // 1 jour
    xAxis.setValueFormatter(new IAxisValueFormatter() {

        private SimpleDateFormat mFormat = new SimpleDateFormat("dd-MMM"); // HH:mm:ss

        @Override
        public String getFormattedValue(float value, AxisBase axis) {
            //long millis = TimeUnit.HOURS.toMillis((long) value);
            mFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
            Date tmpDate = new Date((long) DateConverter.nbMilliseconds(value)); // Convert days in milliseconds
            return mFormat.format(tmpDate);
        }
    });

    YAxis leftAxis = mChart.getAxisLeft();
    leftAxis.setPosition(YAxis.YAxisLabelPosition.OUTSIDE_CHART);
    leftAxis.setTextColor(ColorTemplate.getHoloBlue());
    leftAxis.setDrawGridLines(true);
    leftAxis.setGranularityEnabled(true);
    leftAxis.setGranularity((float) 0.5);
    leftAxis.resetAxisMinimum();

    mChart.getAxisRight().setEnabled(false);
}
 

protected void setYAxisConfig(YAxis axis, ReadableMap propMap) {
    if (BridgeUtils.validate(propMap, ReadableType.Number, "axisMaxValue")) {
        axis.setAxisMaxValue((float) propMap.getDouble("axisMaxValue"));
    }
    if (BridgeUtils.validate(propMap, ReadableType.Number, "axisMinValue")) {
        axis.setAxisMinValue((float) propMap.getDouble("axisMinValue"));
    }
    if (BridgeUtils.validate(propMap, ReadableType.Boolean, "inverted")) {
        axis.setInverted(propMap.getBoolean("inverted"));
    }
    if (BridgeUtils.validate(propMap, ReadableType.Number, "spaceTop")) {
        axis.setSpaceTop((float) propMap.getDouble("spaceTop"));
    }
    if (BridgeUtils.validate(propMap, ReadableType.Number, "spaceBottom")) {
        axis.setSpaceBottom((float) propMap.getDouble("spaceBottom"));
    }
    if (BridgeUtils.validate(propMap, ReadableType.Boolean, "showOnlyMinMax")) {
        axis.setShowOnlyMinMax(propMap.getBoolean("showOnlyMinMax"));
    }
    if (BridgeUtils.validate(propMap, ReadableType.Number, "labelCount")) {
        boolean labelCountForce = false;
        if (BridgeUtils.validate(propMap, ReadableType.Boolean, "labelCountForce")) {
            labelCountForce = propMap.getBoolean("labelCountForce");
        }
        axis.setLabelCount(propMap.getInt("labelCount"), labelCountForce);
    }
    if (BridgeUtils.validate(propMap, ReadableType.String, "position")) {
        axis.setPosition(YAxis.YAxisLabelPosition.valueOf(propMap.getString("position")));
    }
    if (BridgeUtils.validate(propMap, ReadableType.Number, "granularity")) {
        axis.setGranularity((float) propMap.getDouble("granularity"));
    }
    if (BridgeUtils.validate(propMap, ReadableType.Boolean, "granularityEnabled")) {
        axis.setGranularityEnabled(propMap.getBoolean("granularityEnabled"));
    }


    // formatting
    if (BridgeUtils.validate(propMap, ReadableType.String, "valueFormatter")) {
        String valueFormatter = propMap.getString("valueFormatter");

        if ("largeValue".equals(valueFormatter)) {
            axis.setValueFormatter(new LargeValueFormatter());
        } else if ("percent".equals(valueFormatter)) {
            axis.setValueFormatter(new PercentFormatter());
        } else {
            axis.setValueFormatter(new CustomFormatter(valueFormatter));
        }
    }

    // TODO docs says the remaining config needs to be applied before setting data. Test it
    // zero line
    if (BridgeUtils.validate(propMap, ReadableType.Map, "zeroLine")) {
        ReadableMap zeroLineConfig = propMap.getMap("zeroLine");

        if (BridgeUtils.validate(zeroLineConfig, ReadableType.Boolean, "enabled")) {
            axis.setDrawZeroLine(zeroLineConfig.getBoolean("enabled"));
        }
        if (BridgeUtils.validate(zeroLineConfig, ReadableType.Number, "lineWidth")) {
            axis.setZeroLineWidth((float) zeroLineConfig.getDouble("lineWidth"));
        }
        if (BridgeUtils.validate(zeroLineConfig, ReadableType.String, "lineColor")) {
            axis.setZeroLineColor(Color.parseColor(zeroLineConfig.getString("lineColor")));
        }
    }
}