MutableTriangle

Kotlin |Java

public final class MutableTriangle extends Triangle

java.lang.Object
↳	androidx.ink.geometry.Triangle
	↳	androidx.ink.geometry.MutableTriangle

Represents a mutable triangle, defined by its three corners p0, p1 and p2 in order. See ImmutableTriangle for the immutable version.

Summary

Public constructors
`MutableTriangle()` Constructs a degenerate `MutableTriangle` with `p0`, `p1`, and `p2` set to (0, 0).
`MutableTriangle( @NonNull MutableVec p0, @NonNull MutableVec p1, @NonNull MutableVec p2 )` Create the `MutableTriangle` from three existing `MutableVec` instances.

Public methods
`boolean`	`equals(Object other)` Equality for `MutableTriangle` is defined using the order in which `p0`, `p1` and `p2` are defined.
`@NonNull MutableVec`	`getP0()` One of the three points that define the `Triangle`.
`@NonNull MutableVec`	`getP1()` One of the three points that define the `Triangle`.
`@NonNull MutableVec`	`getP2()` One of the three points that define the `Triangle`.
`int`	`hashCode()`
`final @NonNull MutableTriangle`	`populateFrom(@NonNull Triangle input)` Fills this `MutableTriangle` with the values from `input`.
`void`	`setP0(@NonNull MutableVec p0)` One of the three points that define the `Triangle`.
`void`	`setP1(@NonNull MutableVec p1)` One of the three points that define the `Triangle`.
`void`	`setP2(@NonNull MutableVec p2)` One of the three points that define the `Triangle`.
`@NonNull String`	`toString()`

Inherited methods

From androidx.ink.geometry.Triangle

`final @NonNull ImmutableBox`	`computeBoundingBox()` Returns the minimum bounding box containing the `Triangle`.
`final @NonNull MutableBox`	`computeBoundingBox(@NonNull MutableBox outBox)` Populates `outBox` with the minimum bounding box containing the `Triangle` and returns `outBox`.
`final @NonNull ImmutableSegment`	`computeEdge(@IntRange(from = 0, to = 2) int index)` Returns the segment of the Triangle between the point at `index` and the point at `index` + 1 modulo 3.
`final @NonNull MutableSegment`	`computeEdge( @IntRange(from = 0, to = 2) int index, @NonNull MutableSegment outSegment )` Fills `outSegment` with the segment of the Triangle between the point at `index` and the point at `index` + 1 modulo 3.
`final float`	`computeSignedArea()` Return the signed area of the `Triangle`.
`final boolean`	`contains(@NonNull Vec point)` Returns true if the given point is contained within the Triangle.
`final boolean`	`isAlmostEqual( @NonNull Triangle other, @FloatRange(from = 0.0) float tolerance )`

Public constructors

MutableTriangle

Added in 1.0.0-rc01

public MutableTriangle()

Constructs a degenerate MutableTriangle with p0, p1, and p2 set to (0, 0).

MutableTriangle

Added in 1.0.0-rc01

public MutableTriangle(
    @NonNull MutableVec p0,
    @NonNull MutableVec p1,
    @NonNull MutableVec p2
)

Create the MutableTriangle from three existing MutableVec instances. Note that these instances will become the internal state of this MutableTriangle, so modifications made to them directly or through setters on this MutableTriangle will modify the input MutableVec instances too. This is to allow performance-critical code to avoid any unnecessary allocations. This can be tricky to manage, especially in multithreaded code, so when calling code is unable to guarantee ownership of the nested mutable data at a particular time, it may be safest to construct this with copies of the data to give this MutableTriangle exclusive ownership of those copies.

Public methods

equals

public boolean equals(Object other)

Equality for MutableTriangle is defined using the order in which p0, p1 and p2 are defined. Rotated/flipped triangles with out-of-order vertices are not considered equal.

getP0

public @NonNull MutableVec getP0()

One of the three points that define the Triangle.

getP1

public @NonNull MutableVec getP1()

One of the three points that define the Triangle.

getP2

public @NonNull MutableVec getP2()

One of the three points that define the Triangle.

hashCode

public int hashCode()

populateFrom

Added in 1.0.0-rc01

public final @NonNull MutableTriangle populateFrom(@NonNull Triangle input)

Fills this MutableTriangle with the values from input.

Returns the modified instance to allow chaining calls.

Returns
`@NonNull MutableTriangle`	`this`

setP0

Added in 1.0.0-rc01

public void setP0(@NonNull MutableVec p0)

One of the three points that define the Triangle.

setP1

Added in 1.0.0-rc01

public void setP1(@NonNull MutableVec p1)

One of the three points that define the Triangle.

setP2

Added in 1.0.0-rc01

public void setP2(@NonNull MutableVec p2)

One of the three points that define the Triangle.

toString

public @NonNull String toString()