How to use sf cartesian chart to automatically calculate y-axis range

Question

I want to create a line chart with a list of CoinData with SfCartesian Chart in flutter and I want the chart to automatically make the starting point of the y-axis the lowest number provided and the highest number to be the highest number provided. I looked through the docs https://help.syncfusion.com/flutter/cartesian-charts/axis-customization , and the closest thing I could find was the property anchorRangeToVisiblePoints: false or manually setting the property visibleMinimum and visibleMaximum but that isn't an option as I would be passing different CoinData prices based on different coins and I can't use the same value for all of them, any idea how I can implement this For more context, this is the code I am using to test and experiment.

        import 'package:flutter/material.dart';
    import 'package:syncfusion_flutter_charts/charts.dart';


    class Charts extends StatefulWidget {
      const Charts({Key? key}) : super(key: key);

      @override
      _ChartsState createState() => _ChartsState();
    }

    class _ChartsState extends State {

      @override
      void initState() {
        // TODO: implement initState
        // _CoinData = getChartData();
        super.initState();
      }


      @override
      Widget build(BuildContext context) {
        
        return Scaffold(
            body: Center(
                child: Container(
                    height: 267,
                    child: SfCartesianChart(
                        primaryYAxis: NumericAxis(isVisible: false,anchorRangeToVisiblePoints: false,),
                        tooltipBehavior: TooltipBehavior(enable: false),
                        primaryXAxis: DateTimeAxis(isVisible: false,),
                        series: [
                          // Renders line chart
                          LineSeries(
                              dataSource: prices,
                              xValueMapper: (CoinData sales, _) => sales.year,
                              yValueMapper: (CoinData sales, _) => sales.sales)
                        ]))));
      
      }
    }

    class CoinData {
      CoinData(int year, this.sales) {
        this.year = DateTime.fromMillisecondsSinceEpoch(year).toLocal();
      }
      late DateTime year;
      double sales;
    }

    List prices = [
      CoinData(1642392036421, 42749.711818578595),
      CoinData(1642388517068, 42989.70122789917),
      CoinData(1642395633127, 42712.08236994989),
      CoinData(1642402838825, 42843.846816992016),
      CoinData(1642399332413, 42599.83212961661),
      CoinData(1642406434920, 42718.431064867356),
      CoinData(1642410277789, 42918.18830305879),
      CoinData(1642413740231, 42953.704362756995),
      CoinData(1642417237341, 42848.42337504775),
      CoinData(1642420853261, 42787.2565709712),
      CoinData(1642424533130, 42666.07903883221),
      CoinData(1642428022319, 42682.25091040553),
      CoinData(1642431666253, 42706.84109519157),
      CoinData(1642435475100, 42554.380859461504),
      CoinData(1642438853722, 42288.63596857892),
      CoinData(1642442594070, 42117.89357566385),
      CoinData(1642446293756, 42292.17977430048),
      CoinData(1642449728774, 42331.65604621167),
      CoinData(1642453270106, 42213.655228582276),
      CoinData(1642456918900, 41756.89208374346),
      CoinData(1642460477923, 42346.541012394795),
      CoinData(1642464161403, 42311.13096812778),
      CoinData(1642468369285, 42420.84387886949),
      CoinData(1642471295036, 42305.94587540152),
      CoinData(1642474865285, 42310.62962338389),
      CoinData(1642478466863, 42073.464694362105),
      CoinData(1642482191362, 42104.48450429597),
      CoinData(1642485765736, 42243.993380507665),
      CoinData(1642489204082, 42415.20222337461),
      CoinData(1642492943052, 42085.76408393512),
      CoinData(1642496567754, 41774.58393396233),
      CoinData(1642500099392, 42055.251604425226),
      CoinData(1642503653184, 42058.93212053518),
      CoinData(1642507342334, 41843.44735603253),
      CoinData(1642510959133, 41889.82064061213),
      CoinData(1642514481569, 41727.002021779736),
      CoinData(1642518077038, 41356.61112815827),
      CoinData(1642521723376, 41702.56259168864),
      CoinData(1642525337159, 41796.53046970178),
      CoinData(1642528983594, 41550.28411391625),
      CoinData(1642532466377, 41716.19509209493),
      CoinData(1642536297311, 41812.879241771945),
      CoinData(1642539721904, 41741.91803252099),
      CoinData(1642543231985, 42498.18123135277),
      CoinData(1642546837453, 42498.47853946216),
      CoinData(1642550473450, 42395.45879157343),
      CoinData(1642554229144, 42332.290976869364),
      CoinData(1642557774831, 42454.98929665433),
      CoinData(1642561329780, 42334.4404296046),
      CoinData(1642564980424, 41779.01270893919),
      CoinData(1642568497700, 41820.97346316072),
      CoinData(1642572157122, 41778.45401628946),
      CoinData(1642575888262, 41781.40839917395),
      CoinData(1642579246250, 41265.005495175465),
      CoinData(1642582988822, 41325.06579035713),
      CoinData(1642586541303, 41658.36261134919),
      CoinData(1642590063989, 41455.42789267524),
      CoinData(1642593802287, 42111.015879629755),
      CoinData(1642597245462, 42194.35952948134),
      CoinData(1642600921347, 42201.65536625609),
      CoinData(1642604564168, 42652.55815588597),
      CoinData(1642608225687, 42014.03261432062),
      CoinData(1642611838743, 41969.260501867146),
      CoinData(1642615253442, 42134.455770558474),
      CoinData(1642619019192, 42025.43482944683),
      CoinData(1642622544973, 41968.95038082978),
      CoinData(1642626078457, 41618.25322218039),
      CoinData(1642629658614, 41817.745577805385),
      CoinData(1642633358721, 42035.87953978328),
      CoinData(1642636805471, 41749.55143098559),
      CoinData(1642641169518, 41907.06638025352),
      CoinData(1642644119959, 41813.24412079334),
      CoinData(1642647699541, 42072.19957608677),
      CoinData(1642651295109, 41995.408525918814),
      CoinData(1642654929816, 41969.901994013315),
      CoinData(1642658514025, 41923.96890233066),
      CoinData(1642662252361, 42064.208021444596),
      CoinData(1642665773630, 42113.0463479793),
      CoinData(1642669406880, 41964.771542199494),
      CoinData(1642672807732, 42153.83194877708),
      CoinData(1642676524869, 42155.166974090964),
      CoinData(1642680057034, 42210.41697932467),
      CoinData(1642683741769, 42078.59816595068),
      CoinData(1642687252649, 42457.09178193016),
      CoinData(1642690904488, 43120.58908265619),
      CoinData(1642694609592, 43308.03956681778),
      CoinData(1642698105291, 43299.353057524866),
      CoinData(1642701608567, 43056.540669581744),
      CoinData(1642705247727, 43149.926635185744),
      CoinData(1642708911675, 42946.95943008196),
      CoinData(1642712563338, 42612.93819242102),
      CoinData(1642716114837, 41368.03820513283),
      CoinData(1642719655169, 41244.72558790132),
      CoinData(1642723259219, 40707.6824143097),
      CoinData(1642726814802, 41011.486226241585),
      CoinData(1642730438307, 39502.20976924315),
      CoinData(1642734045516, 40005.428327993286),
      CoinData(1642737632525, 38595.357998473075),
      CoinData(1642741374260, 38972.1426142197),
      CoinData(1642744931144, 39069.60851847918),
      CoinData(1642748534002, 38825.08225149761),
      CoinData(1642752138990, 39285.10057661805),
      CoinData(1642755972492, 39282.13205482304),
      CoinData(1642759231219, 39146.98486305409),
      CoinData(1642762897123, 39029.01940763461),
      CoinData(1642766505275, 38972.112801224925),
      CoinData(1642770171389, 37978.94600196123),
      CoinData(1642773639856, 38683.65020437281),
      CoinData(1642777278422, 38477.708224151065),
      CoinData(1642780809533, 39161.402329147226),
      CoinData(1642784572974, 38684.34956161961),
      CoinData(1642788115113, 38357.71969772329),
      CoinData(1642791689302, 38555.043969645936),
      CoinData(1642795342047, 38203.1890035537),
      CoinData(1642798814773, 38178.00057195512),
      CoinData(1642802402972, 36018.680208090766),
      CoinData(1642806110522, 35761.710943672675),
      CoinData(1642809848015, 36385.341362730935),
      CoinData(1642814471774, 36342.22689553229),
      CoinData(1642816873862, 36637.351584595846),
      CoinData(1642820548357, 36639.176855482365),
      CoinData(1642824152214, 36317.547348304455),
      CoinData(1642827750453, 36412.4702263163),
      CoinData(1642831381738, 35732.43347988268),
      CoinData(1642834948400, 35869.70749858731),
      CoinData(1642838429026, 35580.66865547844),
      CoinData(1642842379605, 35692.12145599295),
      CoinData(1642845602154, 34658.69118169887),
      CoinData(1642849332824, 35631.29321200412),
      CoinData(1642852860526, 35423.733623564774),
      CoinData(1642856436347, 35952.32534384478),
      CoinData(1642860031930, 35680.11740179815),
      CoinData(1642863977964, 35193.74160008464),
      CoinData(1642867200863, 34991.02054654133),
      CoinData(1642870885598, 35109.6564826399),
      CoinData(1642874429377, 34631.73103161949),
      CoinData(1642878479406, 34527.6528378289),
      CoinData(1642881707361, 34602.79496883843),
      CoinData(1642885302767, 35464.161836675376),
      CoinData(1642888839111, 35630.207411484356),
      CoinData(1642892552509, 34935.31059784646),
      CoinData(1642896166621, 35180.435462830384),
      CoinData(1642899604966, 35432.61134395314),
      CoinData(1642903362311, 35448.608106994194),
      CoinData(1642906830933, 35044.59262923074),
      CoinData(1642910508104, 35176.65728559375),
      CoinData(1642914151050, 35348.42857530886),
      CoinData(1642917659189, 35591.25705774395),
      CoinData(1642921325713, 35342.902225939535),
      CoinData(1642924951086, 35673.892148853825),
      CoinData(1642928575653, 35760.80532005177),
      CoinData(1642932210452, 35974.488705639684),
      CoinData(1642935648639, 35898.49265417996),
      CoinData(1642939382142, 35764.30539081825),
      CoinData(1642942855334, 35924.69475847814),
      CoinData(1642946608245, 36066.53867510662),
      CoinData(1642950193192, 35208.08509273927),
      CoinData(1642954326416, 35476.641272607),
      CoinData(1642957238487, 35363.39608281859),
      CoinData(1642960836652, 35472.73143627676),
      CoinData(1642964487734, 35005.57945651765),
      CoinData(1642968200712, 34804.560652713786),
      CoinData(1642971750755, 35332.049887473404),
      CoinData(1642975229876, 35566.67303014184),
      CoinData(1642978900086, 35578.38113726986),
      CoinData(1642982449012, 36306.409440464704),
      CoinData(1642986538625, 35976.423803204576),
      CoinData(1642989785208, 35614.40208623434),
      CoinData(1642991427000, 35631.47620568353)
    ];

For more context, this is what I'm trying to create

But this is what I am getting

I do not want it to start from 0, I want it to start from the lowest number like 31,000 or something but I don't want to manually use the property visibleMinimum and visibleMaximum to set the range, as it would be using different coins with different values.

How to use sf cartesian chart to automatically calculate y-axis range

Answers (1)

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