gauge_indicator library
Classes
- AnimatedRadialGauge
- Animated RadialGauge widget.
- CategoryLabelProvider
- Returns a label from the matching LabelCategory or a numeric label if no matching category is available.
- CirclePointer
- GaugeAxis
- GaugeAxisGradient
- GaugeAxisStyle
- GaugeAxisTransformer
- GaugeAxisTween
- GaugeBasicProgressBar
- GaugeBorder
- GaugeLabelProvider
-
Provides string labels for the
RadialGauge. - GaugePointer
- GaugePointerBorder
- GaugePointerPosition
- Describes the pointer position with anchor and offset.
- GaugeProgressBar
- GaugeRange
- GaugeRoundedProgressBar
- GaugeSegment
- LabelCategory
- Use with CategoryLabelProvider to define string labels for specific value ranges.
- MapLabelProvider
- Maps a numeric value to the label.
- NeedlePointer
- NullTween
- This animation is used to disable property animation without affecting the logic already in use.
- RadialGauge
- Renders a radial gauge.
- RadialGaugeLabel
- A simple widget that uses the Text widget and the GaugeLabelProvider class to draw a value label for the RadialGauge widget.
- RadialGaugeLayout
- Defines the radial gauge layout. The layout is defined by the three rects and the radius.
- RadialGaugeRenderBox
- To optimize the gauge indicator widget calculations are split into two phases: size-related and paint-related. Layout-related can be made only on layout change and there is no need to redo them on each paint. Paint-related are calculations that are required to paint the gauge, For it to work the offset (provided to the paint method) needs to be provided.
- TrianglePointer
- ValueLabelProvider
- Returns a numeric label for the provided value.
- VertexDefinition
Enums
- GaugePointerAnchor
- Describes the position (anchor) of the gauge pointer.
- GaugeProgressPlacement
- Describes how the progress bar will be rendered. inside or over the axis segments.
Constants
- degrees2Radians → const double
- radians2Degrees → const double
Functions
-
applyAspectRatio(
Rect src, double aspectRatio) → Size -
calculateAxisPath(
Rect rect, {double from = 0.0, double to = 1.0, double degrees = 180.0, double thickness = 10.0}) → Path -
calculateRadiusArcPath(
Rect rect, {required Radius cornerRadius, double from = 0.0, double to = 1.0, double degrees = 180.0, double thickness = 10.0, Canvas? canvas}) → Path - If a canvas is specified during debugging, the vertices of the arc will be drawn
-
calculateRoundedArcPath(
Rect rect, {double from = 0.0, double to = 1.0, double degrees = 180.0, double thickness = 10.0}) → Path -
flattenSegments(
List< GaugeSegment> segments, {bool colorBlending = true}) → Iterable<GaugeSegment> - Split overlapping segments into non-overlapping.
-
getArcAngle(
double length, double radius) → double - Returns arc length in radians
-
getPointOnCircle(
Offset offset, double angle, double radius) → Offset -
getSagitta(
double degrees, double radius) → double - Calculate circle segment sagitta.
-
lerpDouble(
double begin, double end, double t) → double -
rotateOverOrigin(
{required Matrix4 matrix, required Offset origin, required double rotation}) → Matrix4 -
Rotates over
originby the givenrotationin radians. -
roundedPath(
List< VertexDefinition> vertices, double radiusAll) → Path -
roundedPoly(
List< VertexDefinition> vertices, double radiusAll) → Path - Returns a Path that describes the rounded polygon.
-
toDegrees(
double radians) → double -
Convert
radiansto degrees. -
toRadians(
double degrees) → double -
Convert
degreesto radians.
Typedefs
- GaugeLabelBuilder = Widget Function(BuildContext context, Widget? child, double value)
- ToLabel = String Function(double)