fuchsia.math

Added: 7

STRUCTS

Inset

An integer offset to apply to each edge of a rectangle.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Field	Type	Description	Default
`top`	`int32`	The amount to move the top edge of the rectangle towards the center of the rectangle.	No default
`right`	`int32`	The amount to move the right edge of the rectangle towards the center of the rectangle.	No default
`bottom`	`int32`	The amount to move the bottom edge of the rectangle towards the center of the rectangle.	No default
`left`	`int32`	The amount to move the left edge of the rectangle towards the center of the rectangle.	No default

InsetF

Defined in fuchsia.math/math.fidl

A floating point offset to apply to each edge of a rectangle.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Field	Type	Description	Default
`top`	`float32`	The amount to move the top edge of the rectangle towards the center of the rectangle.	No default
`right`	`float32`	The amount to move the right edge of the rectangle towards the center of the rectangle.	No default
`bottom`	`float32`	The amount to move the bottom edge of the rectangle towards the center of the rectangle.	No default
`left`	`float32`	The amount to move the left edge of the rectangle towards the center of the rectangle.	No default

Point

Defined in fuchsia.math/math.fidl

An integer position in a 2D cartesian space.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Field	Type	Description	Default
`x`	`int32`	The number of units along the x-axis.	No default
`y`	`int32`	The number of units along the y-axis.	No default

Point3F

Defined in fuchsia.math/math.fidl

A floating point position in a 3D cartesian space.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Field	Type	Description	Default
`x`	`float32`	The number of units along the x-axis.	No default
`y`	`float32`	The number of units along the y-axis.	No default
`z`	`float32`	The number of units along the z-axis.	No default

PointF

Defined in fuchsia.math/math.fidl

A floating point position in a 2D cartesian space.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Field	Type	Description	Default
`x`	`float32`	The number of units along the x-axis.	No default
`y`	`float32`	The number of units along the y-axis.	No default

RRectF

Defined in fuchsia.math/math.fidl

A floating point rounded rectangle with the custom radii for all four corners.

A region in a 2D cartesian space consisting of linear, axis-aligned sides with corners rounded into a quarter ellipse.

If the quarter ellipses in two corners would overlap, their radii are clamped such that the ellipses meet with an axis-aligned tangent.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Field	Type	Description	Default
`x`	`float32`	The location of the origin of the region in the x-axis.	No default
`y`	`float32`	The location of the origin of the region in the y-axis.	No default
`width`	`float32`	The distance along the x-axis. If `width` is positive, the region includes x values starting at `x` and increasing along the x-axis. If `width` is negative, the region includes x values starting at `x` and decreasing along the x-axis.	No default
`height`	`float32`	The distance along the y-axis. If `height` is positive, the region includes y values starting at `y` and increasing along the y-axis. If `height` is negative, the region includes y values starting at `y` and decreasing along the y-axis.	No default
`top_left_radius_x`	`float32`	The radius of the quarter ellipse in the top-left corner along the x-axis. Must not be negative.	No default
`top_left_radius_y`	`float32`	The radius of the quarter ellipse in the top-left corner along the y-axis. Must not be negative.	No default
`top_right_radius_x`	`float32`	The radius of the quarter ellipse in the top-right corner along the x-axis. Must not be negative.	No default
`top_right_radius_y`	`float32`	The radius of the quarter ellipse in the top-right corner along the y-axis. Must not be negative.	No default
`bottom_left_radius_x`	`float32`	The radius of the quarter ellipse in the bottom-left corner along the x-axis. Must not be negative.	No default
`bottom_left_radius_y`	`float32`	The radius of the quarter ellipse in the bottom-left corner along the y-axis. Must not be negative.	No default
`bottom_right_radius_x`	`float32`	The radius of the quarter ellipse in the bottom-right corner along the x-axis. Must not be negative.	No default
`bottom_right_radius_y`	`float32`	The radius of the quarter ellipse in the bottom-right corner along the y-axis. Must not be negative.	No default

RatioU32

Defined in fuchsia.math/math.fidl

A ratio of unsigned 32-bit numbers.

Added: 10

Field	Type	Description	Default
`numerator`	`uint32`	The numerator.	No default
`denominator`	`uint32`	The denominator.	No default

RatioU64

Defined in fuchsia.math/math.fidl

A ratio of unsigned 64-bit numbers.

Added: 10

Field	Type	Description	Default
`numerator`	`uint64`	The numerator.	No default
`denominator`	`uint64`	The denominator.	No default

Rect

Defined in fuchsia.math/math.fidl

An integral, rectangular, axis-aligned region in a 2D cartesian space.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Field	Type	Description	Default
`x`	`int32`	The location of the origin of the rectangle in the x-axis.	No default
`y`	`int32`	The location of the origin of the rectangle in the y-axis.	No default
`width`	`int32`	The distance along the x-axis. If `width` is positive, the region includes x values starting at `x` and increasing along the x-axis. If `width` is negative, the region includes x values starting at `x` and decreasing along the x-axis.	No default
`height`	`int32`	The distance along the y-axis. If `height` is positive, the region includes y values starting at `y` and increasing along the y-axis. If `height` is negative, the region includes y values starting at `y` and decreasing along the y-axis.	No default

RectF

Defined in fuchsia.math/math.fidl

A floating point, rectangular, axis-aligned region in a 2D cartesian space.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Field	Type	Description	Default
`x`	`float32`	The location of the origin of the rectangle in the x-axis.	No default
`y`	`float32`	The location of the origin of the rectangle in the y-axis.	No default
`width`	`float32`	The distance along the x-axis. If `width` is positive, the region includes x values starting at `x` and increasing along the x-axis. If `width` is negative, the region includes x values starting at `x` and decreasing along the x-axis.	No default
`height`	`float32`	The distance along the y-axis. If `height` is positive, the region includes y values starting at `y` and increasing along the y-axis. If `height` is negative, the region includes y values starting at `y` and decreasing along the y-axis.	No default

RectU

Defined in fuchsia.math/math.fidl

An integral, rectangular, axis-aligned region in a 2D cartesian space, with unsigned location and distance fields.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Added: 18

Field	Type	Description	Default
`x`	`uint32`	The location of the origin of the rectangle in the x-axis.	No default
`y`	`uint32`	The location of the origin of the rectangle in the y-axis.	No default
`width`	`uint32`	The distance along the x-axis. The region includes x values starting at `x` and increasing along the x-axis.	No default
`height`	`uint32`	The distance along the y-axis. The region includes y values starting at `y` and increasing along the y-axis.	No default

Size

Defined in fuchsia.math/math.fidl

The integer dimensions of a rectangular region in a 2D cartesian space.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

This type allows for negative dimensions, to which protocols can give semantics. Protocols that use this type should specify whether negative dimensions are meaningful, and, if they are meaningful, what they mean.

Field	Type	Description	Default
`width`	`int32`	The distance along the x-axis.	No default
`height`	`int32`	The distance along the y-axis.	No default

SizeF

Defined in fuchsia.math/math.fidl

The floating point dimensions of a rectangular region in a 2D cartesian space.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Field	Type	Description	Default
`width`	`float32`	The distance along the x-axis.	No default
`height`	`float32`	The distance along the y-axis.	No default

SizeU

Defined in fuchsia.math/math.fidl

The unsigned integer dimensions of a rectangular region in a 2D cartesian space.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Field	Type	Description	Default
`width`	`uint32`	The distance along the x-axis.	No default
`height`	`uint32`	The distance along the y-axis.	No default

Transform

Defined in fuchsia.math/math.fidl

A projective transformation of a 3D cartesian space.

A transform consists of a 4x4 matrix that operates in homogeneous coordinates. For example, a point located at (x, y, z) in the cartesian space is transformed by M to a point located at (x'/w', y'/w', z'/w'), where (x', y', z', w') = M (x, y, z, 1).

Field Type Description Default

Field	Type	Description	Default
`matrix`	`array<float32, 16>`	The entries in the transformation matrix in row major order. Specifically, if the matrix is as follows: `a b c d e f g h i j k l m n o p` then the entries in this array are `(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p)`.	No default

matrix

array<float32, 16>

The entries in the transformation matrix in row major order.

Specifically, if the matrix is as follows:

a b c d
e f g h
i j k l
m n o p

then the entries in this array are (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p).

No default

Vec

Defined in fuchsia.math/math.fidl

Represents a 2D vector with integer coordinates.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Field	Type	Description	Default
`x`	`int32`		No default
`y`	`int32`		No default

Vec3F

Defined in fuchsia.math/math.fidl

Represents a 3D vector with floating point coordinates.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Added: 19

Field	Type	Default
`x`	`float32`	No default
`y`	`float32`	No default
`z`	`float32`	No default

Vec4F

Defined in fuchsia.math/math.fidl

Represents a 4D vector with floating point coordinates.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Added: 19

Field	Type	Default
`x`	`float32`	No default
`y`	`float32`	No default
`z`	`float32`	No default
`w`	`float32`	No default

VecF

Defined in fuchsia.math/math.fidl

Represents a 2D vector with floating point coordinates.

This type does not specify units. Protocols that use this type should specify the characteristics of the vector space, including orientation and units.

Field	Type	Description	Default
`x`	`float32`		No default
`y`	`float32`		No default

ALIASES

Name	Value	Description
QuaternionF	`fuchsia.math/Vec4F`	Added: 19