Koala Plot Core/io.github.koalaplot.core.xygraph/LogAxisModel

LogAxisModel

class LogAxisModel(range: ClosedRange<Int>, val minimumMajorTickSpacing: Dp = 50.dp) : AxisModel<Float>

A logarithmic axis.

Parameters

range

The minimum to maximum values allowed to be represented on this Axis expressed as exponents with a base of 10. For example a range of -1..3 represents an axis range of 0.1 to 1000 (10^-1..10^3).

Constructors

LogAxisModel

constructor(range: ClosedRange<Int>, minimumMajorTickSpacing: Dp = 50.dp)

Properties

minimumMajorTickSpacing

open override val minimumMajorTickSpacing: Dp

Specifies the minimum spacing for major ticks, in Dp units. Must be greater than 0.

Functions

computeOffset

open override fun computeOffset(point: Float): Float

Computes the linear offset of the provided point along this axis relative to its min value. For a linear axis this is offset = (point-min)/(max-min). Values less than 0 or greater than 1 mean the point is before or beyond the range of the axis, respectively. Nonlinear, e.g. log, axes can be implemented with appropriate transformations in this function.

computeTickValues

open override fun computeTickValues(axisLength: Dp): TickValues<Float>

Computes major and minor tick values based on the minimum tick spacing and the overall axisLength.

pan

open fun pan(amount: Float)

Asks the AxisState to compute new ranges and tick values after panning, if the axis supports panning.

zoom

open fun zoom(zoomFactor: Float, pivot: Float)

Asks the AxisState to compute new ranges and tick values after zooming, if the axis supports zooming.