com.io7m.jregions.core.parameterized.areas

Class PAreasI

java.lang.Object

com.io7m.jregions.core.parameterized.areas.PAreasI

public final class PAreasI
extends Object

Functions over areas.

These functions operate using the concepts of minimum-x, maximum-x, minimum-y, and maximum-y edges. It is up to individual applications to assign meaning to these edges such as "left" for minimum-x and "top" for minimum-y.

Method Summary

Modifier and Type	Method and Description
static <S> PAreaI<S>	alignCenter(PAreaI<S> outer, PAreaI<S> inner) Align the area inner such that the center of the area is equal to the center of outer.
static <S> PAreaI<S>	alignHorizontallyCenter(PAreaI<S> outer, PAreaI<S> inner) Align the area inner horizontally in the center of outer.
static <S> PAreaI<S>	alignHorizontallyMaxX(PAreaI<S> outer, PAreaI<S> inner) Equivalent to calling alignHorizontallyMaxXOffset(PAreaI, PAreaI, int) with a zero offset.
static <S> PAreaI<S>	alignHorizontallyMaxXOffset(PAreaI<S> outer, PAreaI<S> inner, int offset) Align the area inner horizontally against the inside maximum-x edge of outer.
static <S> PAreaI<S>	alignHorizontallyMinX(PAreaI<S> outer, PAreaI<S> inner) Equivalent to calling alignHorizontallyMinXOffset(PAreaI, PAreaI, int) with a zero offset.
static <S> PAreaI<S>	alignHorizontallyMinXOffset(PAreaI<S> outer, PAreaI<S> inner, int offset) Align the area inner horizontally against the inside minimum-x edge of outer.
static <S> PAreaI<S>	alignMaxYMaxX(PAreaI<S> outer, PAreaI<S> inner) Equivalent to calling alignMaxYMaxXOffset(PAreaI, PAreaI, int, int) with zero offsets.
static <S> PAreaI<S>	alignMaxYMaxXOffset(PAreaI<S> outer, PAreaI<S> inner, int offset_x, int offset_y) Align the area inner such that the maximum-y edge is at least offset_y from the inside maximum-y edge of outer and the maximum-x edge is at least offset_x from the inside maximum-x edge of outer.
static <S> PAreaI<S>	alignMaxYMinX(PAreaI<S> outer, PAreaI<S> inner) Equivalent to calling alignMaxYMinXOffset(PAreaI, PAreaI, int, int) with zero offsets.
static <S> PAreaI<S>	alignMaxYMinXOffset(PAreaI<S> outer, PAreaI<S> inner, int offset_x, int offset_y) Align the area inner such that the maximum-y edge is at least offset_y from the inside maximum-y edge of outer and the minimum-x edge is at least offset_x from the inside minimum-x edge of outer.
static <S> PAreaI<S>	alignMinYMaxX(PAreaI<S> outer, PAreaI<S> inner) Equivalent to calling alignMinYMaxXOffset(PAreaI, PAreaI, int, int) with zero offsets.
static <S> PAreaI<S>	alignMinYMaxXOffset(PAreaI<S> outer, PAreaI<S> inner, int offset_x, int offset_y) Align the area inner such that the minimum-y edge is at least offset_y from the inside minimum-y edge of outer and the maximum-x edge is at least offset_x from the inside maximum-x edge of outer.
static <S> PAreaI<S>	alignMinYMinX(PAreaI<S> outer, PAreaI<S> inner) Equivalent to calling alignMinYMinXOffset(PAreaI, PAreaI, int, int) with zero offsets.
static <S> PAreaI<S>	alignMinYMinXOffset(PAreaI<S> outer, PAreaI<S> inner, int offset_x, int offset_y) Align the area inner such that the minimum-y edge is at least offset_y from the inside minimum-y edge of outer and the minimum-x edge is at least offset_x from the inside minimum-x edge of outer.
static <S> PAreaI<S>	alignVerticallyCenter(PAreaI<S> outer, PAreaI<S> inner) Align the area inner vertically in the center of outer.
static <S> PAreaI<S>	alignVerticallyMaxY(PAreaI<S> outer, PAreaI<S> inner) Equivalent to calling alignVerticallyMaxYOffset(PAreaI, PAreaI, int) with a zero offset.
static <S> PAreaI<S>	alignVerticallyMaxYOffset(PAreaI<S> outer, PAreaI<S> inner, int offset) Align the area inner vertically against the inside maximum-y edge of outer.
static <S> PAreaI<S>	alignVerticallyMinY(PAreaI<S> outer, PAreaI<S> inner) Equivalent to calling alignVerticallyMinYOffset(PAreaI, PAreaI, int) with a zero offset.
static <S> PAreaI<S>	alignVerticallyMinYOffset(PAreaI<S> outer, PAreaI<S> inner, int offset) Align the area inner vertically against the inside minimum-y edge of outer.
static <S,T> PAreaI<T>	cast(PAreaI<S> area) Brand a given area as belonging to a different coordinate space.
static <S> PAreaI<S>	containing(PAreaI<S> a, PAreaI<S> b) Construct a area that will contain both a and b.
static <S> boolean	contains(PAreaI<S> a, PAreaI<S> b) Determine whether or not one area contains another.
static <S> boolean	containsPoint(PAreaI<S> a, int x, int y) Determine whether or not a area contains a given point.
static <S> boolean	couldFitInside(PAreaI<S> a, PAreaI<S> b) Determine whether or not one area could fit inside another.
static <S> PAreaI<S>	create(int x, int y, int width, int height) Create an area of width width and height height, placing the minimum corner at (x, y).
static <S> PAreaI<S>	fitBetweenHorizontal(PAreaI<S> fit, PAreaI<S> a, PAreaI<S> b) Attempt to fit fit between a and b, horizontally.
static <S> PAreaI<S>	fitBetweenVertical(PAreaI<S> fit, PAreaI<S> a, PAreaI<S> b) Attempt to fit fit between a and b, vertically.
static <S> PAreaI<S>	hollowOut(PAreaI<S> outer, int min_x_offset, int max_x_offset, int min_y_offset, int max_y_offset) Construct a new area that fits inside outer based on the given offsets from each edge.
static <S> PAreaI<S>	hollowOutEvenly(PAreaI<S> outer, int offset) Equivalent to calling hollowOut(PAreaI, int, int, int, int) with offset for all offset parameters.
static <S> PAreaI<S>	moveAbsolute(PAreaI<S> area, int x, int y) Move the given area to (x, y).
static <S> PAreaI<S>	moveRelative(PAreaI<S> area, int x, int y) Move the given area by (x, y).
static <S> PAreaI<S>	moveToOrigin(PAreaI<S> area) Move the given area to (0, 0).
static <S> boolean	overlaps(PAreaI<S> a, PAreaI<S> b) Determine whether or not two areas overlap.
static <S> PAreaI<S>	scaleFromCenter(PAreaI<S> area, int x_diff, int y_diff) Scale area by adding x_diff to the width, and y_diff to the height.
static <S> PAreaI<S>	scaleFromMaxYMaxX(PAreaI<S> area, int x_diff, int y_diff) Scale area by adding x_diff to the width, and y_diff to the height.
static <S> PAreaI<S>	scaleFromMaxYMinX(PAreaI<S> area, int x_diff, int y_diff) Scale area by adding x_diff to the width, and y_diff to the height.
static <S> PAreaI<S>	scaleFromMinYMaxX(PAreaI<S> area, int x_diff, int y_diff) Scale area by adding x_diff to the width, and y_diff to the height.
static <S> PAreaI<S>	scaleFromMinYMinX(PAreaI<S> area, int x_diff, int y_diff) Scale area by adding x_diff to the width, and y_diff to the height.
static <S> PAreaI<S>	setSizeFromCenter(PAreaI<S> area, int width, int height) Set the width and height of area to width and height, respectively.
static <S> PAreaI<S>	setSizeFromMaxYMaxX(PAreaI<S> area, int width, int height) Set the width and height of area to width and height, respectively.
static <S> PAreaI<S>	setSizeFromMaxYMinX(PAreaI<S> area, int width, int height) Set the width and height of area to width and height, respectively.
static <S> PAreaI<S>	setSizeFromMinYMaxX(PAreaI<S> area, int width, int height) Set the width and height of area to width and height, respectively.
static <S> PAreaI<S>	setSizeFromMinYMinX(PAreaI<S> area, int width, int height) Set the width and height of area to width and height, respectively.
static <S> String	show(PAreaI<S> area)
static <S> String	showToBuilder(PAreaI<S> area, StringBuilder sb)
static <S> PAreaSizeI<S>	size(PAreaI<S> area)
static <S> PAreaXSplitI<S,PAreaI<S>>	splitAlongParallelToX(PAreaI<S> area, int y) Split area along a line parallel to the X axis placed at y units from its own minimum-y edge.
static <S> PAreaYSplitI<S,PAreaI<S>>	splitAlongParallelToY(PAreaI<S> area, int x) Split area along a line parallel to the Y axis placed at x units from its own minimum-x edge.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

create

public static <S> PAreaI<S> create(int x,
                                   int y,
                                   int width,
                                   int height)

Create an area of width width and height height, placing the minimum corner at (x, y).

Type Parameters:

S - The coordinate space of the area

Parameters:

x - The X value of the minimum corner

y - The Y value of the minimum corner

width - The width of the area

height - The height of the area

Returns:

An area

contains

public static <S> boolean contains(PAreaI<S> a,
                                   PAreaI<S> b)

Determine whether or not one area contains another.

Containing is reflexive: contains(a, a) == true.

Containing is transitive: contains(a, b) → contains(b, c) → contains(a, c).

Containing is not necessarily symmetric.

Type Parameters:

S - The coordinate space of the areas

Parameters:

a - Area A

b - Area B

Returns:

true iff a contains b

moveRelative

public static <S> PAreaI<S> moveRelative(PAreaI<S> area,
                                         int x,
                                         int y)

Move the given area by (x, y).

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

x - The amount to move on the X axis

y - The amount to move on the Y axis

Returns:

A moved area

moveAbsolute

public static <S> PAreaI<S> moveAbsolute(PAreaI<S> area,
                                         int x,
                                         int y)

Move the given area to (x, y).

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

x - The position to which to move on the X axis

y - The position to which to move on the Y axis

Returns:

A moved area

moveToOrigin

public static <S> PAreaI<S> moveToOrigin(PAreaI<S> area)

Move the given area to (0, 0).

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

Returns:

A moved area

cast

public static <S,T> PAreaI<T> cast(PAreaI<S> area)

Brand a given area as belonging to a different coordinate space. Mixing up coordinate spaces is a common source of difficult-to-locate bugs. Use at your own risk.

Type Parameters:

S - The starting coordinate space

T - The resulting coordinate space

Parameters:

area - An area

Returns:

area

alignHorizontallyCenter

public static <S> PAreaI<S> alignHorizontallyCenter(PAreaI<S> outer,
                                                    PAreaI<S> inner)

Align the area inner horizontally in the center of outer.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

Returns:

An aligned area

alignHorizontallyMinX

public static <S> PAreaI<S> alignHorizontallyMinX(PAreaI<S> outer,
                                                  PAreaI<S> inner)

Equivalent to calling alignHorizontallyMinXOffset(PAreaI, PAreaI, int) with a zero offset.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

Returns:

An aligned area

alignHorizontallyMinXOffset

public static <S> PAreaI<S> alignHorizontallyMinXOffset(PAreaI<S> outer,
                                                        PAreaI<S> inner,
                                                        int offset)

Align the area inner horizontally against the inside minimum-x edge of outer. The area will be at least offset units from the minimum-x edge.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

offset - The offset from the edge

Returns:

An aligned area

alignHorizontallyMaxX

public static <S> PAreaI<S> alignHorizontallyMaxX(PAreaI<S> outer,
                                                  PAreaI<S> inner)

Equivalent to calling alignHorizontallyMaxXOffset(PAreaI, PAreaI, int) with a zero offset.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

Returns:

An aligned area

alignHorizontallyMaxXOffset

public static <S> PAreaI<S> alignHorizontallyMaxXOffset(PAreaI<S> outer,
                                                        PAreaI<S> inner,
                                                        int offset)

Align the area inner horizontally against the inside maximum-x edge of outer. The area will be at least offset units from the maximum-x edge.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

offset - The offset from the edge

Returns:

An aligned area

alignVerticallyMinY

public static <S> PAreaI<S> alignVerticallyMinY(PAreaI<S> outer,
                                                PAreaI<S> inner)

Equivalent to calling alignVerticallyMinYOffset(PAreaI, PAreaI, int) with a zero offset.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

Returns:

An aligned area

alignVerticallyMinYOffset

public static <S> PAreaI<S> alignVerticallyMinYOffset(PAreaI<S> outer,
                                                      PAreaI<S> inner,
                                                      int offset)

Align the area inner vertically against the inside minimum-y edge of outer. The area will be at least offset units from the minimum-y edge.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

offset - The offset from the edge

Returns:

An aligned area

alignVerticallyMaxY

public static <S> PAreaI<S> alignVerticallyMaxY(PAreaI<S> outer,
                                                PAreaI<S> inner)

Equivalent to calling alignVerticallyMaxYOffset(PAreaI, PAreaI, int) with a zero offset.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

Returns:

An aligned area

alignVerticallyMaxYOffset

public static <S> PAreaI<S> alignVerticallyMaxYOffset(PAreaI<S> outer,
                                                      PAreaI<S> inner,
                                                      int offset)

Align the area inner vertically against the inside maximum-y edge of outer. The area will be at least offset units from the maximum-y edge.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

offset - The offset from the edge

Returns:

An aligned area

alignVerticallyCenter

public static <S> PAreaI<S> alignVerticallyCenter(PAreaI<S> outer,
                                                  PAreaI<S> inner)

Align the area inner vertically in the center of outer.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

Returns:

An aligned area

alignMinYMinX

public static <S> PAreaI<S> alignMinYMinX(PAreaI<S> outer,
                                          PAreaI<S> inner)

Equivalent to calling alignMinYMinXOffset(PAreaI, PAreaI, int, int) with zero offsets.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

Returns:

An aligned area

alignMinYMinXOffset

public static <S> PAreaI<S> alignMinYMinXOffset(PAreaI<S> outer,
                                                PAreaI<S> inner,
                                                int offset_x,
                                                int offset_y)

Align the area inner such that the minimum-y edge is at least offset_y from the inside minimum-y edge of outer and the minimum-x edge is at least offset_x from the inside minimum-x edge of outer.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

offset_x - The offset from the minimum-x edge

offset_y - The offset from the minimum-y edge

Returns:

An aligned area

alignMinYMaxX

public static <S> PAreaI<S> alignMinYMaxX(PAreaI<S> outer,
                                          PAreaI<S> inner)

Equivalent to calling alignMinYMaxXOffset(PAreaI, PAreaI, int, int) with zero offsets.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

Returns:

An aligned area

alignMinYMaxXOffset

public static <S> PAreaI<S> alignMinYMaxXOffset(PAreaI<S> outer,
                                                PAreaI<S> inner,
                                                int offset_x,
                                                int offset_y)

Align the area inner such that the minimum-y edge is at least offset_y from the inside minimum-y edge of outer and the maximum-x edge is at least offset_x from the inside maximum-x edge of outer.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

offset_x - The offset from the maximum-x edge

offset_y - The offset from the minimum-y edge

Returns:

An aligned area

alignMaxYMinX

public static <S> PAreaI<S> alignMaxYMinX(PAreaI<S> outer,
                                          PAreaI<S> inner)

Equivalent to calling alignMaxYMinXOffset(PAreaI, PAreaI, int, int) with zero offsets.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

Returns:

An aligned area

alignMaxYMinXOffset

public static <S> PAreaI<S> alignMaxYMinXOffset(PAreaI<S> outer,
                                                PAreaI<S> inner,
                                                int offset_x,
                                                int offset_y)

Align the area inner such that the maximum-y edge is at least offset_y from the inside maximum-y edge of outer and the minimum-x edge is at least offset_x from the inside minimum-x edge of outer.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

offset_x - The offset from the minimum-x edge

offset_y - The offset from the maximum-y edge

Returns:

An aligned area

alignMaxYMaxX

public static <S> PAreaI<S> alignMaxYMaxX(PAreaI<S> outer,
                                          PAreaI<S> inner)

Equivalent to calling alignMaxYMaxXOffset(PAreaI, PAreaI, int, int) with zero offsets.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

Returns:

An aligned area

alignMaxYMaxXOffset

public static <S> PAreaI<S> alignMaxYMaxXOffset(PAreaI<S> outer,
                                                PAreaI<S> inner,
                                                int offset_x,
                                                int offset_y)

Align the area inner such that the maximum-y edge is at least offset_y from the inside maximum-y edge of outer and the maximum-x edge is at least offset_x from the inside maximum-x edge of outer.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

offset_x - The offset from the maximum-x edge

offset_y - The offset from the maximum-y edge

Returns:

An aligned area

alignCenter

public static <S> PAreaI<S> alignCenter(PAreaI<S> outer,
                                        PAreaI<S> inner)

Align the area inner such that the center of the area is equal to the center of outer.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The outer area

inner - The inner area

Returns:

An aligned area

hollowOut

public static <S> PAreaI<S> hollowOut(PAreaI<S> outer,
                                      int min_x_offset,
                                      int max_x_offset,
                                      int min_y_offset,
                                      int max_y_offset)

Construct a new area that fits inside outer based on the given offsets from each edge.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The containing area

min_x_offset - The offset from the minimum-x edge (must be non-negative)

max_x_offset - The offset from the maximum-x edge (must be non-negative)

min_y_offset - The offset from the minimum-y edge (must be non-negative)

max_y_offset - The offset from the maximum-y edge (must be non-negative)

Returns:

A new area

hollowOutEvenly

public static <S> PAreaI<S> hollowOutEvenly(PAreaI<S> outer,
                                            int offset)

Equivalent to calling hollowOut(PAreaI, int, int, int, int) with offset for all offset parameters.

Type Parameters:

S - The coordinate space of the areas

Parameters:

outer - The containing area

offset - The offset from each edge (must be non-negative)

Returns:

A new area

setSizeFromCenter

public static <S> PAreaI<S> setSizeFromCenter(PAreaI<S> area,
                                              int width,
                                              int height)

Set the width and height of area to width and height, respectively.

The area is resized from its own center.

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

width - The new width (must be non-negative)

height - The new height (must be non-negative)

Returns:

A resized area

setSizeFromMinYMinX

public static <S> PAreaI<S> setSizeFromMinYMinX(PAreaI<S> area,
                                                int width,
                                                int height)

Set the width and height of area to width and height, respectively.

The area is resized by moving its minimum-y-minimum-x corner.

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

width - The new width (must be non-negative)

height - The new height (must be non-negative)

Returns:

A resized area

setSizeFromMinYMaxX

public static <S> PAreaI<S> setSizeFromMinYMaxX(PAreaI<S> area,
                                                int width,
                                                int height)

Set the width and height of area to width and height, respectively.

The area is resized by moving its minimum-y-maximum-x corner.

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

width - The new width (must be non-negative)

height - The new height (must be non-negative)

Returns:

A resized area

setSizeFromMaxYMaxX

public static <S> PAreaI<S> setSizeFromMaxYMaxX(PAreaI<S> area,
                                                int width,
                                                int height)

Set the width and height of area to width and height, respectively.

The area is resized by moving its maximum-y-maximum-x corner.

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

width - The new width (must be non-negative)

height - The new height (must be non-negative)

Returns:

A resized area

setSizeFromMaxYMinX

public static <S> PAreaI<S> setSizeFromMaxYMinX(PAreaI<S> area,
                                                int width,
                                                int height)

Set the width and height of area to width and height, respectively.

The area is resized by moving its maximum-y-minimum-x corner.

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

width - The new width (must be non-negative)

height - The new height (must be non-negative)

Returns:

A resized area

scaleFromMinYMinX

public static <S> PAreaI<S> scaleFromMinYMinX(PAreaI<S> area,
                                              int x_diff,
                                              int y_diff)

Scale area by adding x_diff to the width, and y_diff to the height. The size of the resulting area is clamped so that its width and height are always non-negative.

The area is resized by moving its minimum-y-minimum-x corner.

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

x_diff - The X difference

y_diff - The Y difference

Returns:

A resized area

scaleFromMinYMaxX

public static <S> PAreaI<S> scaleFromMinYMaxX(PAreaI<S> area,
                                              int x_diff,
                                              int y_diff)

Scale area by adding x_diff to the width, and y_diff to the height. The size of the resulting area is clamped so that its width and height are always non-negative.

The area is resized by moving its minimum-y-maximum-x corner.

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

x_diff - The X difference

y_diff - The Y difference

Returns:

A resized area

scaleFromMaxYMinX

public static <S> PAreaI<S> scaleFromMaxYMinX(PAreaI<S> area,
                                              int x_diff,
                                              int y_diff)

Scale area by adding x_diff to the width, and y_diff to the height. The size of the resulting area is clamped so that its width and height are always non-negative.

The area is resized by moving its maximum-y-minimum-x corner.

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

x_diff - The X difference

y_diff - The Y difference

Returns:

A resized area

scaleFromMaxYMaxX

public static <S> PAreaI<S> scaleFromMaxYMaxX(PAreaI<S> area,
                                              int x_diff,
                                              int y_diff)

Scale area by adding x_diff to the width, and y_diff to the height. The size of the resulting area is clamped so that its width and height are always non-negative.

The area is resized by moving its maximum-y-maximum-x corner.

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

x_diff - The X difference

y_diff - The Y difference

Returns:

A resized area

scaleFromCenter

public static <S> PAreaI<S> scaleFromCenter(PAreaI<S> area,
                                            int x_diff,
                                            int y_diff)

Scale area by adding x_diff to the width, and y_diff to the height. The size of the resulting area is clamped so that its width and height are always non-negative.

The area is resized from its own center.

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

x_diff - The X difference

y_diff - The Y difference

Returns:

A resized area

overlaps

public static <S> boolean overlaps(PAreaI<S> a,
                                   PAreaI<S> b)

Determine whether or not two areas overlap.

Overlapping is reflexive: overlaps(a, a) == true.

Overlapping is symmetric: overlaps(a, b) == contains(b, a).

Overlapping is not necessarily transitive.

Type Parameters:

S - The coordinate space of the areas

Parameters:

a - An area

b - An area

Returns:

true iff a overlaps b

couldFitInside

public static <S> boolean couldFitInside(PAreaI<S> a,
                                         PAreaI<S> b)

Determine whether or not one area could fit inside another.

Fitting is reflexive: couldFitInside(a, a) == true.

Fitting is transitive: couldFitInside(a, b) → couldFitInside(b, c) → couldFitInside(a, c).

Fitting is not necessarily symmetric.

Type Parameters:

S - The coordinate space of the areas

Parameters:

a - An area

b - An area

Returns:

true iff a could fit inside b

containing

public static <S> PAreaI<S> containing(PAreaI<S> a,
                                       PAreaI<S> b)

Construct a area that will contain both a and b.

Type Parameters:

S - The coordinate space of the areas

Parameters:

a - An area

b - An area

Returns:

An area containing a and b

containsPoint

public static <S> boolean containsPoint(PAreaI<S> a,
                                        int x,
                                        int y)

Determine whether or not a area contains a given point.

Type Parameters:

S - The coordinate space of the area

Parameters:

a - An area

x - The X coordinate of the point

y - The Y coordinate of the point

Returns:

true iff a contains (x, y)

fitBetweenHorizontal

public static <S> PAreaI<S> fitBetweenHorizontal(PAreaI<S> fit,
                                                 PAreaI<S> a,
                                                 PAreaI<S> b)

Attempt to fit fit between a and b, horizontally.

Type Parameters:

S - The coordinate space of the areas

Parameters:

fit - The area to be fitted

a - An area

b - An area

Returns:

A fitted area

fitBetweenVertical

public static <S> PAreaI<S> fitBetweenVertical(PAreaI<S> fit,
                                               PAreaI<S> a,
                                               PAreaI<S> b)

Attempt to fit fit between a and b, vertically.

Type Parameters:

S - The coordinate space of the areas

Parameters:

fit - The area to be fitted

a - An area

b - An area

Returns:

A fitted area

splitAlongParallelToX

public static <S> PAreaXSplitI<S,PAreaI<S>> splitAlongParallelToX(PAreaI<S> area,
                                                                  int y)

Split area along a line parallel to the X axis placed at y units from its own minimum-y edge.

Type Parameters:

S - The coordinate space of the areas

Parameters:

area - The area to be split

y - The relative Y coordinate of the splitting edge

Returns:

A pair of areas

splitAlongParallelToY

public static <S> PAreaYSplitI<S,PAreaI<S>> splitAlongParallelToY(PAreaI<S> area,
                                                                  int x)

Split area along a line parallel to the Y axis placed at x units from its own minimum-x edge.

Type Parameters:

S - The coordinate space of the areas

Parameters:

area - The area to be split

x - The relative X coordinate of the splitting edge

Returns:

A pair of areas

show

public static <S> String show(PAreaI<S> area)

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

Returns:

A terse string describing the position and size of the area

size

public static <S> PAreaSizeI<S> size(PAreaI<S> area)

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

Returns:

The size of the area

showToBuilder

public static <S> String showToBuilder(PAreaI<S> area,
                                       StringBuilder sb)

Type Parameters:

S - The coordinate space of the area

Parameters:

area - The area

sb - A string builder

Returns:

A terse string describing the position and size of the area