BaseChart

FlBorderData

PropName	Description	default value
show	determines to show or hide the border	true
border	Border details that determines which border should be drawn with which color	Border.all(color: Colors.black, width: 1.0, style: BorderStyle.solid)

FlTitlesData

PropName	Description	default value
show	determines to show or hide the titles Around the chart	true
leftTitles	an AxisTitle that holds data to draw left titles	AxisTitles(sideTitles: SideTitles(reservedSize: 40, showTitles: true))
topTitles	an AxisTitle that holds data to draw top titles	AxisTitles(sideTitles: SideTitles(reservedSize: 6, showTitles: true))
rightTitles	an AxisTitle that holds data to draw right titles	AxisTitles(sideTitles: SideTitles(reservedSize: 40, showTitles: true))
bottomTitles	an AxisTitle that holds data to draw bottom titles	AxisTitles(sideTitles: SideTitles(reservedSize: 6, showTitles: true))

AxisTitle

PropName	Description	default value
axisNameSize	Determines the size of [axisName]	16
axisNameWidget	It shows the name of axis (you can pass a Widget)	null
sideTitles	It accepts a SideTitles which is responsible to show your axis side titles	SideTitles()
drawBehindEverything	If titles are showing on top of your tooltip, you can draw them behind everything.	true
sideTitleAlignment	It accepts a SideTitleAlignment which is responsible for positioning the axis labels inside, outside, or on the border of the chart	SideTitleAlignment.outside

SideTitles

PropName	Description	default value
showTitles	determines whether to show or hide the titles	false
getTitlesWidget	A function to retrieve the title widget with given value on the related axis.	defaultGetTitle
reservedSize	It determines the maximum space that your titles need,	22
interval	Texts are showing with provided interval. If you don't provide anything, we try to find a suitable value to set as interval under the hood.	null
minIncluded	Determines whether to include title for minimum data value	true
maxIncluded	Determines whether to include title for maximum data value	true

SideTitleFitInsideData

PropName	Description	default value
enabled	determines whether to enable fit inside to SideTitleWidget	true
axisPosition	position (in pixel) that applied to the center of child widget along its corresponding axis	null
parentAxisSize	child widget's corresponding axis maximum width/height	null
distanceFromEdge	distance between child widget and its closest corresponding axis edge	6

FlGridData

PropName	Description	default value
show	determines to show or hide the background grid data	true
drawHorizontalLine	determines to show or hide the horizontal grid lines	true
horizontalInterval	interval space of grid, left it null to be calculate automatically	null
getDrawingHorizontalLine	a function to get the line style of each grid line by giving the related axis value	defaultGridLine
checkToShowHorizontalLine	a function to check whether to show or hide the horizontal grid by giving the related axis value	showAllGrids
drawVerticalLine	determines to show or hide the vertical grid lines	true
verticalInterval	interval space of grid, left it null to be calculate automatically	null
getDrawingVerticalLine	a function to get the line style of each grid line by giving the related axis value	defaultGridLine
checkToShowVerticalLine	a function to determine whether to show or hide the vertical grid by giving the related axis value	showAllGrids

FlLabel

PropName	Description	default value
show	determines whether to show or hide the label	true
text	the text content of the label	''
style	TextStyle of the label. When null or when inherit is true, the style is merged with the ambient DefaultTextStyle and respects the platform's bold-text accessibility setting	null
angle	rotation angle of the label in degrees	0
textDirection	TextDirection of the label text	TextDirection.ltr

FlSpot

PropName	Description	default value
x	represents x on the coordinate system (x starts from left)	null
y	represents y on the coordinate system (y starts from bottom)	null
xError	Determines the error range of the data point using (FlErrorRange)[#FlErrorRange] (which ontains lowerBy and upperValue) for the x-axis	null
yError	Determines the error range of the data point using (FlErrorRange)[#FlErrorRange] (which ontains upperBy and upperValue) for the y-axis	null

FlLine

propName	Description	default value
color	determines the color of line	Colors.black
gradient	gradient of the line (you have to provide either color or gradient	null
strokeWidth	determines the stroke width of the line	2
dashArray	A circular array of dash offsets and lengths. For example, the array [5, 10] would result in dashes 5 pixels long followed by blank spaces 10 pixels long. The array [5, 10, 5] would result in a 5 pixel dash, a 10 pixel gap, a 5 pixel dash, a 5 pixel gap, a 10 pixel dash, etc.	null

TouchedSpot

PropName	Description	default value
spot	the touched FlSpot	null
offset	Offset of the touched spot	null

RangeAnnotations

PropName	Description	default value
horizontalRangeAnnotations	list of horizontalRangeAnnotation to draw on the chart	[]
verticalRangeAnnotations	list of VerticalRangeAnnotation to draw on the chart	[]

HorizontalRangeAnnotation

PropName	Description	default value
y1	start interval of horizontal rectangle	null
y2	end interval of horizontal rectangle	null
color	color of the rectangle	Colors.white
gradient	gradient of the rectangle	null

VerticalRangeAnnotation

PropName	Description	default value
x1	start interval of vertical rectangle	null
x2	end interval of vertical rectangle	null
color	color of the rectangle	Colors.white
gradient	gradient of the rectangle	null

FlTouchEvent

Base class for all supported touch/pointer events.

PropName	Description	Inspired from
FlPanDownEvent	Contains information of happened touch gesture	GestureDragDownCallback
FlPanStartEvent	When a pointer has contacted the screen and has begun to move.	GestureDragStartCallback
FlPanUpdateEvent	When a pointer that is in contact with the screen and moving has moved again.	GestureDragUpdateCallback
FlPanCancelEvent	When the pointer that previously triggered a FlPanStartEvent did not complete.	GestureDragCancelCallback
FlPanEndEvent	When a pointer that was previously in contact with the screen and moving is no longer in contact with the screen.	GestureDragEndCallback
FlTapDownEvent	When a pointer that might cause a tap has contacted the screen.	GestureTapDownCallback
FlTapCancelEvent	When the pointer that previously triggered a FlTapDownEvent will not end up causing a tap.	GestureTapCancelCallback
FlTapUpEvent	When a pointer that will trigger a tap has stopped contacting the screen.	GestureTapUpCallback
FlLongPressStart	Called When a pointer has remained in contact with the screen at the same location for a long period of time.	GestureLongPressStartCallback
FlLongPressMoveUpdate	When a pointer is moving after being held in contact at the same location for a long period of time. Reports the new position and its offset from the original down position.	GestureLongPressMoveUpdateCallback
FlLongPressEnd	When a pointer stops contacting the screen after a long press gesture was detected. Also reports the position where the pointer stopped contacting the screen.	GestureLongPressEndCallback
FlPointerEnterEvent	The pointer has moved with respect to the device while the pointer is or is not in contact with the device, and it has entered our chart.	PointerEnterEventListener
FlPointerHoverEvent	The pointer has moved with respect to the device while the pointer is not in contact with the device.	PointerHoverEventListener
FlPointerExitEvent	The pointer has moved with respect to the device while the pointer is or is not in contact with the device, and exited our chart.	PointerExitEventListener

ExtraLinesData

PropName	Description	default value
extraLinesOnTop	determines to paint the extraLines over the trendline or below it	true
horizontalLines	list of HorizontalLine to draw on the chart	[]
verticalLines	list of VerticalLine to draw on the chart	[]

HorizontalLine

PropName	Description	default value
y	draw straight line from left to right of the chart with dynamic y value	null
color	color of the line	Colors.black
gradient	gradient of the line (you have to provide either color or gradient	null
strokeWidth	strokeWidth of the line	2
strokeCap	strokeCap of the line,e.g. Setting to StrokeCap.round will draw the tow ends of line rounded. NOTE: this might not work on dash lines.	StrokeCap.butt
image	image to annotate the line. the Future must be complete at the time this is received by the chart	null
sizedPicture	SizedPicture uses an svg to annotate the line with a picture. the Future must be complete at the time this is received by the chart	null
label	a HorizontalLineLabel object with label parameters	null

VerticalLine

PropName	Description	default value
x	draw straight line from bottom to top of the chart with dynamic x value	null
color	color of the line	Colors.black
gradient	gradient of the line (you have to provide either color or gradient	null
strokeWidth	strokeWidth of the line	2
strokeCap	strokeCap of the line,e.g. Setting to StrokeCap.round will draw the tow ends of line rounded. NOTE: this might not work on dash lines.	StrokeCap.butt
image	image to annotate the line. the Future must be complete at the time this is received by the chart	null
sizedPicture	SizedPicture uses an svg to annotate the line with a picture. the Future must be complete at the time this is received by the chart	null
label	a VerticalLineLabel object with label parameters	null

SizedPicture

PropName	Description	default value
Picture	a Dart UI Picture which should be derived from the svg. see example for how to get a Picture from an svg.	null
width	the width of the picture	null
height	the height of the picture	null

HorizontalLineLabel

PropName	Description	default value
show	Determines showing or not showing label	false
padding	EdgeInsets object with label padding configuration	EdgeInsets.zero
style	TextStyle which determines label text style	TextStyle(fontSize: 11, color: line.color)
alignment	Alignment with label position relative to line	Alignment.topLeft
direction	Direction of the text (horizontal, vertical, horizontalMirrored, verticalMirrored)	LabelDirection.horizontal
labelResolver	Getter function returning label title	defaultLineLabelResolver

VerticalLineLabel

PropName	Description	default value
show	Determines showing or not showing label	false
padding	EdgeInsets object with label padding configuration	EdgeInsets.zero
style	TextStyle which determines label text style	TextStyle(fontSize: 11, color: line.color)
alignment	Alignment with label position relative to line	Alignment.topLeft
direction	Direction of the text (horizontal, vertical, horizontalMirrored, verticalMirrored)	LabelDirection.vertical
labelResolver	Getter function returning label title	defaultLineLabelResolver

FLHorizontalAlignment

enum values {center, left, right}

FlErrorIndicatorData

PropName	Description	default value
show	Determines showing or not showing error indicator/threshold	true
painter	A callback that allows you to provide a custom painter for the error indicator	FlSimpleErrorPainter()

FlErrorRange

PropName	Description	default value
lowerBy	Lower value of the error range. It is subtracted from the spot value and shoul be positive	null
upperBy	Upper value of the error range. It is added to the spot value and shoul be positive	null

AxisSpotIndicator

PropName	Description	default value
x	x value of the touched spot	required
y	y value of the touched spot	required
AxisSpotIndicatorPainter	a painter that is used to draw the touched spot indicator. You can use this to customize the appearance of the touched spot indicator (Or you can implement your own painter).	AxisLinesIndicatorPainter()

SideTitleAlignment

Option	Description	Is Default
SideTitleAlignment.outside	Places the axis labels outside the chart area	Yes
SideTitleAlignment.border	Places the axis labels along the border of the chart area	No
SideTitleAlignment.inside	Places the axis labels inside the border of the chart area	No