jacobjust / fl_animated_linechart Goto Github PK

Would be nice to make expose or not make the date format private so that at least after extending the class I could provide my own format.

I have an app with dark and light mode I need to access the grid lines and texts color

I managed to make the example run, but I can't find a way to plot a simple x,y data line.
My attempt was to do so :

var points = [ChartPoint(1.0,2.0),ChartPoint(2.0,0.0),ChartPoint(3.0,4.0),ChartPoint(4.0,1.0),ChartPoint(5.0,4.0),ChartPoint(6.0,6.0)];
var data = ChartLine(points,Color(0xFF42A5F5),'°C');
chart = LineChart([data],??);

but the fromTo arguments seems to want "Dates" ... I don't have any :)
Any ideas ? Thanks

Hi there! Great library

Only issue I have is when length of the data map is only 1, my layout shifts weirdly and I get this error:

Exception caught by rendering library
The following assertion was thrown during paint():
Offset argument contained a NaN value.
'dart:ui/painting.dart':
Failed assertion: line 38: ''

Either the assertion indicates an error in the framework itself, or we should provide substantially more information in this error message to help you determine and fix the underlying cause.
In either case, please report this assertion by filing a bug on GitHub:
https://github.com/flutter/flutter/issues/new?template=BUG.md

The relevant error-causing widget was
AnimatedLineChart-[#5c159]
lib\…\anomaly_tag_screens\wristbands_screen.dart:190
When the exception was thrown, this was the stack
#2 _offsetIsValid (dart:ui/painting.dart:38:10)
#3 Canvas.drawCircle (dart:ui/painting.dart:3643:12)
#4 ChartPainter._drawLines.. (package:fl_animated_linechart/chart/animated_line_chart.dart:351:40)
#5 List.forEach (dart:core-patch/growable_array.dart:285:8)
#6 ChartPainter._drawLines. (package:fl_animated_linechart/chart/animated_line_chart.dart:351:18)
...
The following RenderObject was being processed when the exception was fired: RenderCustomPaint#996d4
RenderObject: RenderCustomPaint#996d4
parentData: (can use size)
constraints: BoxConstraints(w=330.0, h=229.5)
size: Size(330.0, 229.5)

The highlighted selection is offset around an inch to the right (from where you touch) in landscape orientation.

Is it possible to customize the text and color properties of different parts of the chart? ex. color of the horizontal and vertical lines, color and font of text?

Hi @JacobJust

According to your implementation, i can able to show only two charts. I need to show three lines (High,low,medium) graph. How to acheive it? In your pictorial representation, you have showed three graphs. Let me have some examples for showing three lines as i am facing exception

Thanks in advance

Hi, I was wondering if there is an option to make a step Line chart.
Thanks,

There are some disadvantages, such as the inability to set the Y axis minimum, too few configurable parameters, and a slightly more complex function that requires a large amount of source code modification. It is highly recommended to add a configurable parameter: Y axis minimum