MapLibre Native Android/org.maplibre.android.style.expressions/Expression/Interpolator

Interpolator

open class Interpolator : Expression

Expression interpolator type.

Is used for first parameter of interpolate.

Functions

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open fun abs(@NonNull number: Number): Expression
open fun abs(expression: Expression): Expression
Returns the absolute value of the input.
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open fun accumulated(): Expression
Gets the value of a cluster property accumulated so far.
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open fun acos(@NonNull number: Number): Expression
open fun acos(@NonNull number: Expression): Expression
Returns the arccosine of the input.
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open fun all(@NonNull input: Array<Expression>): Expression
Returns `true` if all the inputs are `true`, `false` otherwise.
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open fun any(@NonNull input: Array<Expression>): Expression
Returns `true` if any of the inputs are `true`, `false` otherwise.
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open fun array(@NonNull input: Expression): Expression
Asserts that the input is an array (optionally with a specific item type and length).
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open fun asin(@NonNull number: Number): Expression
open fun asin(@NonNull number: Expression): Expression
Returns the arcsine of the input.
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open fun at(@NonNull number: Number, @NonNull expression: Expression): Expression
open fun at(@NonNull number: Expression, @NonNull expression: Expression): Expression
Retrieves an item from an array.
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open fun atan(@NonNull number: Number): Expression
open fun atan(@NonNull number: Expression): Expression
Returns the arctangent of the input.
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open fun bool(@NonNull input: Array<Expression>): Expression
Asserts that the input value is a boolean.
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open fun ceil(@NonNull number: Number): Expression
open fun ceil(expression: Expression): Expression
Returns the smallest integer that is greater than or equal to the input.
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open fun coalesce(@NonNull input: Array<Expression>): Expression
Evaluates each expression in turn until the first non-null value is obtained, and returns that value.
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open fun collator(caseSensitive: Boolean, diacriticSensitive: Boolean): Expression
open fun collator(caseSensitive: Expression, diacriticSensitive: Expression): Expression
open fun collator(caseSensitive: Boolean, diacriticSensitive: Boolean, locale: Locale): Expression
open fun collator(caseSensitive: Expression, diacriticSensitive: Expression, locale: Expression): Expression
Returns a collator for use in locale-dependent comparison operations.
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open fun color(@ColorInt color: Int): Expression
Expression literal utility method to convert a color int to an color expression Example usage: 

FillLayer fillLayer = new FillLayer("layer-id", "source-id");
fillLayer.setProperties(
    fillColor(color(Color.GREEN))
);
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open fun concat(@NonNull input: Array<String>): Expression
open fun concat(@NonNull input: Array<Expression>): Expression
Returns a string consisting of the concatenation of the inputs.
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open fun cos(@NonNull number: Number): Expression
open fun cos(@NonNull number: Expression): Expression
Returns the cosine of the input.
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open fun cubicBezier(@NonNull x1: Number, @NonNull y1: Number, @NonNull x2: Number, @NonNull y2: Number): Expression.Interpolator
open fun cubicBezier(@NonNull x1: Expression, @NonNull y1: Expression, @NonNull x2: Expression, @NonNull y2: Expression): Expression.Interpolator
Interpolates using the cubic bezier curve defined by the given control points.
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open fun distance(@NonNull geoJson: GeoJson): Expression
Retrieves the shortest distance between two geometries.
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open fun division(@NonNull first: Number, @NonNull second: Number): Expression
open fun division(@NonNull first: Expression, @NonNull second: Expression): Expression
Returns the result of floating point division of the first input by the second.
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open fun downcase(@NonNull input: String): Expression
open fun downcase(@NonNull input: Expression): Expression
Returns the input string converted to lowercase.
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open fun e(): Expression
Returns the mathematical constant e.
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open fun eq(@NonNull compareOne: Expression, compareTwo: Boolean): Expression
open fun eq(@NonNull compareOne: Expression, @NonNull compareTwo: Number): Expression
open fun eq(@NonNull compareOne: Expression, @NonNull compareTwo: String): Expression
open fun eq(@NonNull compareOne: Expression, @NonNull compareTwo: Expression): Expression
open fun eq(@NonNull compareOne: Expression, @NonNull compareTwo: String, @NonNull collator: Expression): Expression
open fun eq(@NonNull compareOne: Expression, @NonNull compareTwo: Expression, @NonNull collator: Expression): Expression
Returns true if the input values are equal, false otherwise.
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open fun equals(@Nullable o: Any): Boolean
Indicates whether some other object is "equal to" this one.
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open fun exponential(@NonNull base: Number): Expression.Interpolator
open fun exponential(@NonNull expression: Expression): Expression.Interpolator
Interpolates exponentially between the stops just less than and just greater than the input.
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open fun floor(@NonNull number: Number): Expression
open fun floor(expression: Expression): Expression
Returns the largest integer that is less than or equal to the input.
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open fun format(@NonNull formatEntries: Array<Expression.FormatEntry>): Expression
Returns formatted text containing annotations for use in mixed-format text-field entries.
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open fun formatEntry(@NonNull text: String): Expression.FormatEntry
open fun formatEntry(@NonNull text: Expression): Expression.FormatEntry
open fun formatEntry(@NonNull text: String, @Nullable formatOptions: Array<Expression.FormatOption>): Expression.FormatEntry
open fun formatEntry(@NonNull text: Expression, @Nullable formatOptions: Array<Expression.FormatOption>): Expression.FormatEntry
Returns a format entry that can be used in format to create formatted text fields.
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open fun geometryType(): Expression
Gets the feature's geometry type: Point, MultiPoint, LineString, MultiLineString, Polygon, MultiPolygon.
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open fun get(@NonNull input: String): Expression
open fun get(@NonNull input: Expression): Expression
Retrieves a property value from the current feature's properties, or from another object if a second argument is provided.
open fun get(@NonNull key: String, @NonNull object: Expression): Expression
open fun get(@NonNull key: Expression, @NonNull object: Expression): Expression
Retrieves a property value from another object.
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open fun gt(@NonNull compareOne: Expression, @NonNull compareTwo: Number): Expression
open fun gt(@NonNull compareOne: Expression, @NonNull compareTwo: String): Expression
open fun gt(@NonNull compareOne: Expression, @NonNull compareTwo: Expression): Expression
open fun gt(@NonNull compareOne: Expression, @NonNull compareTwo: String, @NonNull collator: Expression): Expression
open fun gt(@NonNull compareOne: Expression, @NonNull compareTwo: Expression, @NonNull collator: Expression): Expression
Returns true if the first input is strictly greater than the second, false otherwise.
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open fun gte(@NonNull compareOne: Expression, @NonNull compareTwo: Number): Expression
open fun gte(@NonNull compareOne: Expression, @NonNull compareTwo: String): Expression
open fun gte(@NonNull compareOne: Expression, @NonNull compareTwo: Expression): Expression
open fun gte(@NonNull compareOne: Expression, @NonNull compareTwo: String, @NonNull collator: Expression): Expression
open fun gte(@NonNull compareOne: Expression, @NonNull compareTwo: Expression, @NonNull collator: Expression): Expression
Returns true if the first input is greater than or equal to the second, false otherwise.
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open fun has(@NonNull key: String): Expression
open fun has(@NonNull key: Expression): Expression
Tests for the presence of an property value in the current feature's properties.
open fun has(@NonNull key: String, @NonNull object: Expression): Expression
open fun has(@NonNull key: Expression, @NonNull object: Expression): Expression
Tests for the presence of an property value from another object.
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open fun hashCode(): Int
Returns a hash code value for the expression.
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open fun heatmapDensity(): Expression
Gets the kernel density estimation of a pixel in a heatmap layer, which is a relative measure of how many data points are crowded around a particular pixel.
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open fun id(): Expression
Gets the feature's id, if it has one.
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open fun image(@NonNull input: Expression): Expression
Returns image expression for use in '*-pattern' and 'icon-image' layer properties.
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open fun in(@NonNull needle: Number, @NonNull haystack: Expression): Expression
open fun in(@NonNull needle: String, @NonNull haystack: Expression): Expression
open fun in(@NonNull needle: Expression, @NonNull haystack: Expression): Expression
Retrieves whether an item exists in an array or a substring exists in a string.
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open fun indexOf(@NonNull keyword: Expression, @NonNull input: Expression): Expression
open fun indexOf(@NonNull keyword: Expression, @NonNull input: Expression, @NonNull fromIndex: Expression): Expression
Returns the first position at which a `needle` can be found in a `haystack`.
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open fun interpolate(@NonNull interpolation: Expression.Interpolator, @NonNull number: Expression, @NonNull stops: Array<Expression>): Expression
open fun interpolate(@NonNull interpolation: Expression.Interpolator, @NonNull number: Expression, stops: Array<Expression.Stop>): Expression
Produces continuous, smooth results by interpolating between pairs of input and output values (\"stops\").
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open fun isSupportedScript(@NonNull string: String): Expression
open fun isSupportedScript(expression: Expression): Expression
Returns true if the input string is expected to render legibly.
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open fun length(@NonNull input: String): Expression
open fun length(@NonNull expression: Expression): Expression
Gets the length of an array or string.
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open fun let(@Size(min = 1) input: Array<Expression>): Expression
Binds input to named variables, which can then be referenced in the result expression using var or var.
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open fun linear(): Expression.Interpolator
interpolates linearly between the pair of stops just less than and just greater than the input.
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open fun lineProgress(): Expression
Gets the progress along a gradient line.
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open fun literal(bool: Boolean): Expression
Create a literal boolean expression.
open fun literal(@NonNull number: Number): Expression
Create a literal number expression.
open fun literal(@NonNull object: Any): Expression
Create a literal object expression.
open fun literal(@NonNull array: Array<Any>): Expression
Create a literal array expression
open fun literal(@NonNull string: String): Expression
Create a literal string expression.
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open fun ln(@NonNull number: Number): Expression
open fun ln(number: Expression): Expression
Returns the natural logarithm of the input.
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open fun ln2(): Expression
Returns mathematical constant ln(2).
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open fun log10(@NonNull number: Number): Expression
open fun log10(@NonNull number: Expression): Expression
Returns the base-ten logarithm of the input.
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open fun log2(@NonNull number: Number): Expression
open fun log2(@NonNull number: Expression): Expression
Returns the base-two logarithm of the input.
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open fun lt(@NonNull compareOne: Expression, @NonNull compareTwo: Number): Expression
open fun lt(@NonNull compareOne: Expression, @NonNull compareTwo: String): Expression
open fun lt(@NonNull compareOne: Expression, @NonNull compareTwo: Expression): Expression
open fun lt(@NonNull compareOne: Expression, @NonNull compareTwo: String, @NonNull collator: Expression): Expression
open fun lt(@NonNull compareOne: Expression, @NonNull compareTwo: Expression, @NonNull collator: Expression): Expression
Returns true if the first input is strictly less than the second, false otherwise.
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open fun lte(@NonNull compareOne: Expression, @NonNull compareTwo: Number): Expression
open fun lte(@NonNull compareOne: Expression, @NonNull compareTwo: String): Expression
open fun lte(@NonNull compareOne: Expression, @NonNull compareTwo: Expression): Expression
open fun lte(@NonNull compareOne: Expression, @NonNull compareTwo: String, @NonNull collator: Expression): Expression
open fun lte(@NonNull compareOne: Expression, @NonNull compareTwo: Expression, @NonNull collator: Expression): Expression
Returns true if the first input is less than or equal to the second, false otherwise.
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open fun match(@NonNull @Size(min = 2) input: Array<Expression>): Expression
open fun match(@NonNull input: Expression, @NonNull defaultOutput: Expression, @NonNull stops: Array<Expression.Stop>): Expression
Selects the output whose label value matches the input value, or the fallback value if no match is found.
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open fun max(@Size(min = 1) numbers: Array<Number>): Expression
open fun max(@Size(min = 1) numbers: Array<Expression>): Expression
Returns the maximum value of the inputs.
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open fun min(@Size(min = 1) numbers: Array<Number>): Expression
open fun min(@Size(min = 1) numbers: Array<Expression>): Expression
Returns the minimum value of the inputs.
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open fun mod(@NonNull first: Number, @NonNull second: Number): Expression
open fun mod(@NonNull first: Expression, @NonNull second: Expression): Expression
Returns the remainder after integer division of the first input by the second.
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open fun neq(compareOne: Expression, compareTwo: Boolean): Expression
Returns true if the input values are equal, false otherwise.
open fun neq(@NonNull compareOne: Expression, @NonNull compareTwo: Number): Expression
open fun neq(@NonNull compareOne: Expression, @NonNull compareTwo: String): Expression
Returns `true` if the input values are not equal, `false` otherwise.
open fun neq(@NonNull compareOne: Expression, @NonNull compareTwo: Expression): Expression
open fun neq(@NonNull compareOne: Expression, @NonNull compareTwo: String, @NonNull collator: Expression): Expression
open fun neq(@NonNull compareOne: Expression, @NonNull compareTwo: Expression, @NonNull collator: Expression): Expression
Returns true if the input values are not equal, false otherwise.
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open fun not(input: Boolean): Expression
open fun not(@NonNull input: Expression): Expression
Logical negation.
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open fun number(@NonNull input: Array<Expression>): Expression
Asserts that the input value is a number.
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open fun numberFormat(@NonNull number: Number, @NonNull options: Array<Expression.NumberFormatOption>): Expression
open fun numberFormat(@NonNull number: Expression, @NonNull options: Array<Expression.NumberFormatOption>): Expression
Converts the input number into a string representation using the providing formatting rules.
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open fun object(@NonNull input: Expression): Expression
Asserts that the input value is an object.
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open fun pi(): Expression
Returns the mathematical constant pi.
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open fun pow(@NonNull first: Number, @NonNull second: Number): Expression
open fun pow(@NonNull first: Expression, @NonNull second: Expression): Expression
Returns the result of raising the first input to the power specified by the second.
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open fun product(@Size(min = 2) numbers: Array<Number>): Expression
open fun product(@Size(min = 2) numbers: Array<Expression>): Expression
Returns the product of the inputs.
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open fun properties(): Expression
Gets the feature properties object.
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open fun raw(@NonNull rawExpression: String): Expression
Returns a DSL equivalent of a raw expression.
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open fun resolvedLocale(collator: Expression): Expression
Returns the IETF language tag of the locale being used by the provided collator.
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open fun rgb(@NonNull red: Number, @NonNull green: Number, @NonNull blue: Number): Expression
open fun rgb(@NonNull red: Expression, @NonNull green: Expression, @NonNull blue: Expression): Expression
Creates a color value from red, green, and blue components, which must range between 0 and 255, and an alpha component of 1.
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open fun rgba(@NonNull red: Number, @NonNull green: Number, @NonNull blue: Number, @NonNull alpha: Number): Expression
open fun rgba(@NonNull red: Expression, @NonNull green: Expression, @NonNull blue: Expression, @NonNull alpha: Expression): Expression
Creates a color value from red, green, blue components, which must range between 0 and 255, and an alpha component which must range between 0 and 1.
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open fun round(@NonNull number: Number): Expression
open fun round(expression: Expression): Expression
Rounds the input to the nearest integer.
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open fun sin(@NonNull number: Number): Expression
open fun sin(@NonNull number: Expression): Expression
Returns the sine of the input.
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open fun slice(@NonNull input: Expression, @NonNull fromIndex: Expression): Expression
Returns items from an array or a substring from a string from a specified start index.
open fun slice(@NonNull input: Expression, @NonNull fromIndex: Expression, @NonNull toIndex: Expression): Expression
Returns items from an array or a substring from a string between a start index and an end index if set.
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open fun sqrt(@NonNull number: Number): Expression
Returns the square root of the input Example usage: 

CircleLayer circleLayer = new CircleLayer("layer-id", "source-id");
circleLayer.setProperties(
    circleRadius(sqrt(25.0f))
);
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open fun sqrt(@NonNull number: Expression): Expression
Returns the square root of the input Example usage: 

CircleLayer circleLayer = new CircleLayer("layer-id", "source-id");
circleLayer.setProperties(
    circleRadius(sqrt(pi()))
);
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open fun step(@NonNull input: Number, @NonNull defaultOutput: Number, stops: Array<Expression>): Expression
open fun step(@NonNull input: Number, @NonNull defaultOutput: Number, stops: Array<Expression.Stop>): Expression
open fun step(@NonNull input: Number, @NonNull defaultOutput: Expression, stops: Array<Expression>): Expression
open fun step(@NonNull input: Number, @NonNull defaultOutput: Expression, stops: Array<Expression.Stop>): Expression
open fun step(@NonNull input: Expression, @NonNull defaultOutput: Number, stops: Array<Expression>): Expression
open fun step(@NonNull input: Expression, @NonNull defaultOutput: Number, stops: Array<Expression.Stop>): Expression
open fun step(@NonNull input: Expression, @NonNull defaultOutput: Expression, @NonNull stops: Array<Expression>): Expression
open fun step(@NonNull input: Expression, @NonNull defaultOutput: Expression, stops: Array<Expression.Stop>): Expression
Produces discrete, stepped results by evaluating a piecewise-constant function defined by pairs of input and output values (\"stops\").
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open fun stop(@NonNull stop: Any, @NonNull value: Any): Expression.Stop
Produces a stop value.
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open fun string(@NonNull input: Array<Expression>): Expression
Asserts that the input value is a string.
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open fun subtract(@NonNull number: Number): Expression
open fun subtract(@NonNull number: Expression): Expression
Returns the result of subtracting a number from 0.
open fun subtract(@NonNull first: Number, @NonNull second: Number): Expression
open fun subtract(@NonNull first: Expression, @NonNull second: Expression): Expression
Returns the result of subtracting the second input from the first.
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open fun sum(@Size(min = 2) numbers: Array<Number>): Expression
open fun sum(@Size(min = 2) numbers: Array<Expression>): Expression
Returns the sum of the inputs.
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open fun switchCase(@NonNull @Size(min = 1) input: Array<Expression>): Expression
Selects the first output whose corresponding test condition evaluates to true.
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open fun tan(@NonNull number: Number): Expression
open fun tan(@NonNull number: Expression): Expression
Returns the tangent of the input.
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@NonNull
open fun toArray(): Array<Any>
Converts the expression to Object array representation.
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open fun toBool(@NonNull input: Expression): Expression
Converts the input value to a boolean.
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open fun toColor(@NonNull input: Expression): Expression
Converts the input value to a color.
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open fun toNumber(@NonNull input: Expression): Expression
Converts the input value to a number, if possible.
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open fun toPadding(@NonNull input: Expression): Expression
Converts input value to a padding.
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open fun toRgba(@NonNull expression: Expression): Expression
Returns a four-element array containing the input color's red, green, blue, and alpha components, in that order.
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open fun toString(): String
Returns a string representation of the object that matches the definition set in the style specification.
open fun toString(@NonNull input: Expression): Expression
Converts the input value to a string.
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open fun typeOf(@NonNull input: Expression): Expression
Returns a string describing the type of the given value.
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open fun upcase(@NonNull string: String): Expression
open fun upcase(@NonNull string: Expression): Expression
Returns the input string converted to uppercase.
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open fun var(@NonNull variableName: String): Expression
open fun var(@NonNull expression: Expression): Expression
References variable bound using let.
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open fun within(@NonNull polygon: Polygon): Expression
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open fun zoom(): Expression
Gets the current zoom level.