Class: TBool

Defined in: core/types/basic/tbool/TBool.ts:52

Temporal boolean type.

Wraps a MEOS TBool pointer and exposes boolean-specific operations on top of the generic Temporal API defined in Temporal.ts.

Supports all three subtypes (Instant, Sequence, SequenceSet) through the same class - the subtype is determined by the WKT string at parse time.

Example

await initMeos();
const t = TBool.fromString('{true@2001-01-01, false@2001-01-02}');
console.log(t.startValue()); // true
console.log(t.toString());   // {t@2001-01-01 00:00:00+00, f@2001-01-02 00:00:00+00}
t.free();

Extends

Temporal<boolean>

Extended by

Constructors

Constructor

new TBool(inner): TBool;

Defined in: core/types/basic/tbool/TBool.ts:61

Wrap a raw WASM pointer. The caller must ensure the pointer is a valid MEOS TBool*.

Parameters

inner

number

Returns

TBool

Overrides

Temporal<boolean>.constructor

Accessors

inner

Get Signature

get inner(): number;

Defined in: core/types/temporal/Temporal.ts:173

Raw WASM pointer. Use when passing this value to low-level functions.

Returns

number

Inherited from

Temporal.inner

Methods

[dispose]()

dispose: void;

Defined in: core/types/temporal/Temporal.ts:191

Explicit Resource Management support. Allows using t = TBool.fromString(...) to free automatically.

Returns

void

Inherited from

Temporal.[dispose]

alwaysEq()

alwaysEq(b): boolean;

Defined in: core/types/basic/tbool/TBool.ts:234

Returns true if the value is always equal to b.

See everEq for the > 0 conversion rationale.

MEOS: always_eq_tbool_bool

Parameters

b

boolean

Returns

boolean

and()

and(other): TBool;

Defined in: core/types/basic/tbool/TBool.ts:175

Temporal conjunction with another TBool or a constant boolean. MEOS: tand_tbool_tbool / tand_tbool_bool

Parameters

other

boolean | TBool

Returns

TBool

appendInstant()

appendInstant(
   inst, 
   maxdist?, 
   maxt?, 
   expand?): this;

Defined in: core/types/temporal/Temporal.ts:528

Appends an instant to this temporal, returning a new temporal. MEOS: temporal_append_tinstant

Parameters

inst

this

The instant to append (same subtype as this).

maxdist?

number = 0

Maximum distance gap allowed (0 = no limit).

maxt?

number = 0

Maximum time gap as interval pointer (0 = no limit).

expand?

boolean = false

Whether to expand the sequence in-place.

Returns

this

Inherited from

Temporal.appendInstant

appendSequence()

appendSequence(seq, expand?): this;

Defined in: core/types/temporal/Temporal.ts:538

Appends a sequence to this temporal, returning a new temporal. MEOS: temporal_append_tsequence

Parameters

seq

this

expand?

boolean = false

Returns

this

Inherited from

Temporal.appendSequence

asHexWKB()

asHexWKB(): string;

Defined in: core/types/temporal/Temporal.ts:213

Returns the hex-encoded WKB representation.

Uses the hand-written temporal_as_hexwkb_w wrapper which internally passes variant=4 (extended WKB) and discards size_out.

MEOS: temporal_as_hexwkb

Returns

string

Inherited from

Temporal.asHexWKB

asMFJSON()

asMFJSON(
   withBbox?, 
   flags?, 
   precision?, 
   srs?): string;

Defined in: core/types/temporal/Temporal.ts:235

Returns the MF-JSON representation.

The hand-written wrapper converts an empty srs string to C NULL so that callers can omit the SRS without passing a null pointer directly.

MEOS: temporal_as_mfjson

Parameters

withBbox?

boolean = true

Include bounding box in the output (default true)

flags?

number = 3

Output flags (default 3)

precision?

number = 6

Coordinate decimal precision (default 6)

srs?

string | null

Spatial Reference System string, or null to omit

Returns

string

Inherited from

Temporal.asMFJSON

at()

at(b): TBool;

Defined in: core/types/basic/tbool/TBool.ts:199

Restrict to instants where the value equals b. MEOS: tbool_at_value

Parameters

b

boolean

Returns

TBool

atMax()

atMax(): this;

Defined in: core/types/temporal/Temporal.ts:406

Restricts to instants where the value is the maximum. MEOS: temporal_at_max

Returns

this

Inherited from

Temporal.atMax

atMin()

atMin(): this;

Defined in: core/types/temporal/Temporal.ts:401

Restricts to instants where the value is the minimum. MEOS: temporal_at_min

Returns

this

Inherited from

Temporal.atMin

atTsTzSet()

atTsTzSet(s): this;

Defined in: core/types/temporal/Temporal.ts:425

Restricts to the given timestamp set. MEOS: temporal_at_tstzset

Parameters

s

number

Returns

this

Inherited from

Temporal.atTsTzSet

atTsTzSpan()

atTsTzSpan(s): this;

Defined in: core/types/temporal/Temporal.ts:430

Restricts to the given timestamp span. MEOS: temporal_at_tstzspan

Parameters

s

number

Returns

this

Inherited from

Temporal.atTsTzSpan

atTsTzSpanSet()

atTsTzSpanSet(ss): this;

Defined in: core/types/temporal/Temporal.ts:435

Restricts to the given timestamp span set. MEOS: temporal_at_tstzspanset

Parameters

ss

number

Returns

this

Inherited from

Temporal.atTsTzSpanSet

copy()

copy(): this;

Defined in: core/types/temporal/Temporal.ts:199

Returns a deep copy of this temporal value. MEOS: temporal_copy

Returns

this

Inherited from

Temporal.copy

durationMs()

durationMs(ignoreGaps?): number;

Defined in: core/types/temporal/Temporal.ts:385

Returns the total duration as a number of milliseconds.

Uses the hand-written temporal_duration_us_w wrapper which converts the MEOS Interval* return value to a plain int64 (total microseconds). The result is divided by 1000 to return milliseconds.

Pass ignoreGaps=true to sum only sequence durations, ignoring the time gaps between sequences in a SequenceSet.

MEOS: temporal_duration

Parameters

ignoreGaps?

boolean = false

Returns

number

Inherited from

Temporal.durationMs

endInstant()

endInstant(): this;

Defined in: core/types/temporal/Temporal.ts:286

Returns the last instant as a new instance of the same subtype. MEOS: temporal_end_instant

Returns

this

Inherited from

Temporal.endInstant

endTimestamp()

endTimestamp(): number;

Defined in: core/types/temporal/Temporal.ts:362

Returns the last timestamp as microseconds since 2000-01-01 UTC. MEOS: temporal_end_timestamptz

Returns

number

Inherited from

Temporal.endTimestamp

endValue()

endValue(): boolean;

Defined in: core/types/basic/tbool/TBool.ts:155

Ending value of the temporal. MEOS: tbool_end_value

Returns

boolean

Overrides

Temporal.endValue

equals()

equals(other): boolean;

Defined in: core/types/temporal/Temporal.ts:558

Pointer-based identity check. For value equality, use the generated teq_* / temporal_eq functions.

Parameters

other

Temporal<boolean>

Returns

boolean

Inherited from

Temporal.equals

everEq()

everEq(b): boolean;

Defined in: core/types/basic/tbool/TBool.ts:223

Returns true if the value is ever equal to b.

MEOS ever/always functions return int (-1 on error, 0 for false, 1 for true). The > 0 conversion maps this to a boolean, treating errors as false.

MEOS: ever_eq_tbool_bool

Parameters

b

boolean

Returns

boolean

free()

free(): void;

Defined in: core/types/temporal/Temporal.ts:183

Frees the underlying MEOS allocation.

After calling free(), the instance must not be used. Calls the hand-written meos_free wrapper from res/bindings_c_header.txt.

Returns

void

Inherited from

Temporal.free

instantN()

instantN(n): this;

Defined in: core/types/temporal/Temporal.ts:320

Returns the n-th instant (0-based index).

Uses the hand-written temporal_instant_n_w wrapper which converts the 0-based JS index to the 1-based index expected by MEOS internally.

MEOS: temporal_instant_n

Parameters

n

number

Returns

this

Inherited from

Temporal.instantN

interpolation()

interpolation(): TInterpolation;

Defined in: core/types/temporal/Temporal.ts:248

Returns the interpolation mode of this temporal value. MEOS: temporal_interp

Returns

TInterpolation

Inherited from

Temporal.interpolation

maxInstant()

maxInstant(): this;

Defined in: core/types/temporal/Temporal.ts:306

Returns the instant with the maximum value. MEOS: temporal_max_instant

Returns

this

Inherited from

Temporal.maxInstant

merge()

merge(other): this;

Defined in: core/types/temporal/Temporal.ts:546

Merges this temporal with another, returning a new temporal. MEOS: temporal_merge

Parameters

other

this

Returns

this

Inherited from

Temporal.merge

minInstant()

minInstant(): this;

Defined in: core/types/temporal/Temporal.ts:296

Returns the instant with the minimum value. MEOS: temporal_min_instant

Returns

this

Inherited from

Temporal.minInstant

minus()

minus(b): TBool;

Defined in: core/types/basic/tbool/TBool.ts:207

Restrict to instants where the value differs from b. MEOS: tbool_minus_value

Parameters

b

boolean

Returns

TBool

minusMax()

minusMax(): this;

Defined in: core/types/temporal/Temporal.ts:416

Excludes instants where the value is the maximum. MEOS: temporal_minus_max

Returns

this

Inherited from

Temporal.minusMax

minusMin()

minusMin(): this;

Defined in: core/types/temporal/Temporal.ts:411

Excludes instants where the value is the minimum. MEOS: temporal_minus_min

Returns

this

Inherited from

Temporal.minusMin

minusTsTzSet()

minusTsTzSet(s): this;

Defined in: core/types/temporal/Temporal.ts:440

Excludes the given timestamp set. MEOS: temporal_minus_tstzset

Parameters

s

number

Returns

this

Inherited from

Temporal.minusTsTzSet

minusTsTzSpan()

minusTsTzSpan(s): this;

Defined in: core/types/temporal/Temporal.ts:445

Excludes the given timestamp span. MEOS: temporal_minus_tstzspan

Parameters

s

number

Returns

this

Inherited from

Temporal.minusTsTzSpan

minusTsTzSpanSet()

minusTsTzSpanSet(ss): this;

Defined in: core/types/temporal/Temporal.ts:450

Excludes the given timestamp span set. MEOS: temporal_minus_tstzspanset

Parameters

ss

number

Returns

this

Inherited from

Temporal.minusTsTzSpanSet

neverEq()

neverEq(b): boolean;

Defined in: core/types/basic/tbool/TBool.ts:242

Returns true if the value is never equal to b. Implemented as the logical complement of everEq.

Parameters

b

boolean

Returns

boolean

not()

not(): TBool;

Defined in: core/types/basic/tbool/TBool.ts:167

Temporal negation: returns a new TBool with all values flipped. MEOS: tnot_tbool

Returns

TBool

numInstants()

numInstants(): number;

Defined in: core/types/temporal/Temporal.ts:263

Returns the number of distinct instants in this temporal value. MEOS: temporal_num_instants

Returns

number

Inherited from

Temporal.numInstants

numTimestamps()

numTimestamps(): number;

Defined in: core/types/temporal/Temporal.ts:334

Returns the number of distinct timestamps. MEOS: temporal_num_timestamps

Returns

number

Inherited from

Temporal.numTimestamps

or()

or(other): TBool;

Defined in: core/types/basic/tbool/TBool.ts:185

Temporal disjunction with another TBool or a constant boolean. MEOS: tor_tbool_tbool / tor_tbool_bool

Parameters

other

boolean | TBool

Returns

TBool

scaleTime()

scaleTime(duration): this;

Defined in: core/types/temporal/Temporal.ts:464

Scales the temporal domain to the given duration interval pointer. MEOS: temporal_scale_time

Parameters

duration

number

Returns

this

Inherited from

Temporal.scaleTime

setInterp()

setInterp(interp): this;

Defined in: core/types/temporal/Temporal.ts:478

Returns a new temporal with the interpolation changed to interp. Pass TInterpolation values as numbers: Discrete=0, Stepwise=1, Linear=2. MEOS: temporal_set_interp

Parameters

interp

TInterpolation

Returns

this

Inherited from

Temporal.setInterp

shiftScaleTime()

shiftScaleTime(shift, duration): this;

Defined in: core/types/temporal/Temporal.ts:469

Shifts and scales the temporal domain. MEOS: temporal_shift_scale_time

Parameters

shift

number

duration

number

Returns

this

Inherited from

Temporal.shiftScaleTime

shiftTime()

shiftTime(shift): this;

Defined in: core/types/temporal/Temporal.ts:459

Shifts the temporal domain by the given interval pointer. MEOS: temporal_shift_time

Parameters

shift

number

Returns

this

Inherited from

Temporal.shiftTime

startInstant()

startInstant(): this;

Defined in: core/types/temporal/Temporal.ts:276

Returns the first instant as a new instance of the same subtype. MEOS: temporal_start_instant

Returns

this

Inherited from

Temporal.startInstant

startTimestamp()

startTimestamp(): number;

Defined in: core/types/temporal/Temporal.ts:347

Returns the first timestamp as microseconds since 2000-01-01 UTC. MEOS: temporal_start_timestamptz

Returns

number

Inherited from

Temporal.startTimestamp

startValue()

startValue(): boolean;

Defined in: core/types/basic/tbool/TBool.ts:147

Starting value of the temporal. MEOS: tbool_start_value

Returns

boolean

Overrides

Temporal.startValue

temporalEq()

temporalEq(b): TBool;

Defined in: core/types/basic/tbool/TBool.ts:254

Returns a TBool that is true at each instant where this equals b. MEOS: teq_tbool_bool

Parameters

b

boolean

Returns

TBool

temporalNe()

temporalNe(b): TBool;

Defined in: core/types/basic/tbool/TBool.ts:262

Returns a TBool that is true at each instant where this differs from b. MEOS: tne_tbool_bool

Parameters

b

boolean

Returns

TBool

toInstant()

toInstant(): this;

Defined in: core/types/temporal/Temporal.ts:489

Converts to TInstant (must already be an instant). MEOS: temporal_to_tinstant

Returns

this

Inherited from

Temporal.toInstant

toSequence()

toSequence(interp): this;

Defined in: core/types/temporal/Temporal.ts:494

Converts to TSequence with the given interpolation. MEOS: temporal_to_tsequence

Parameters

interp

TInterpolation

Returns

this

Inherited from

Temporal.toSequence

toSequenceSet()

toSequenceSet(interp): this;

Defined in: core/types/temporal/Temporal.ts:505

Converts to TSequenceSet with the given interpolation. MEOS: temporal_to_tsequenceset

Parameters

interp

TInterpolation

Returns

this

Inherited from

Temporal.toSequenceSet

toString()

toString(): string;

Defined in: core/types/basic/tbool/TBool.ts:139

WKT string representation. MEOS: tbool_out

Returns

string

Overrides

Temporal.toString

toTInt()

toTInt(): number;

Defined in: core/types/basic/tbool/TBool.ts:328

Converts this TBool to a TInt (true → 1, false → 0) and returns the raw WASM pointer. Use new TInt(ptr) to obtain a typed object. MEOS: tbool_to_tint

Returns

number

valueAtTimestamp()

valueAtTimestamp(t): boolean | null;

Defined in: core/types/basic/tbool/TBool.ts:311

Evaluates the temporal at a specific timestamp. Returns null when the timestamp is outside the temporal's domain.

Parameters

t

number

Timestamp in microseconds since 2000-01-01 UTC.

Returns

boolean | null

valueN()

valueN(n): boolean;

Defined in: core/types/basic/tbool/TBool.ts:298

Returns the n-th distinct value (0-based index) across all instants.

Parameters

n

number

0-based index (MEOS internally uses 1-based indexing). MEOS: tbool_value_n

Returns

boolean

whenFalse()

whenFalse(): TsTzSpanSet;

Defined in: core/types/basic/tbool/TBool.ts:282

Returns the set of time periods where this temporal is false. MEOS: tnot_tbool + tbool_when_true

Returns

TsTzSpanSet

whenTrue()

whenTrue(): TsTzSpanSet;

Defined in: core/types/basic/tbool/TBool.ts:274

Returns the set of time periods where this temporal is true. MEOS: tbool_when_true

Returns

TsTzSpanSet

fromBaseTemporal()

static fromBaseTemporal(b, domain): TBool;

Defined in: core/types/basic/tbool/TBool.ts:91

Create a TBool with constant value b spanning the same domain as domain. MEOS: tbool_from_base_temp

Parameters

b

boolean

domain

TBool

Returns

TBool

fromBaseTime()

static fromBaseTime(
   b, 
   time, 
   type): TBool;

Defined in: core/types/basic/tbool/TBool.ts:100

Create a TBool with constant value b over a time object. Accepts a raw Ptr to a TsTzSet, TsTzSpan, or TsTzSpanSet. MEOS: tboolseq_from_base_tstzset / tstzspan / tboolseqset_from_base_tstzspanset

Parameters

b

boolean

time

number

type

"tstzset" | "tstzspan" | "tstzspanset"

Returns

TBool

fromInstant()

static fromInstant(value, timestamp): TBool;

Defined in: core/types/basic/tbool/TBool.ts:123

Create a TBoolInst from a boolean value and a timestamp.

Parameters

value

boolean

The boolean value.

timestamp

number

Microseconds since 2000-01-01 UTC (TimestampTz).

MEOS: tboolinst_make

Returns

TBool

fromMFJSON()

static fromMFJSON(mfjson): TBool;

Defined in: core/types/basic/tbool/TBool.ts:83

Parse a TBool from a MF-JSON string. MEOS: tbool_from_mfjson

Parameters

mfjson

string

Returns

TBool

fromString()

static fromString(wkt): TBool;

Defined in: core/types/basic/tbool/TBool.ts:75

Parse a TBool from a WKT string.

Accepts all subtypes: Instant: "true@2001-01-01" Sequence: "[true@2001-01-01, false@2001-01-02]" SequenceSet: "{[true@2001-01-01, false@2001-01-02], [true@2001-01-03]}"

MEOS: tbool_in

Parameters

wkt

string

Returns

TBool

Class: TBool ​

Example ​

Extends ​

Extended by ​

Constructors ​

Constructor ​

Parameters ​

inner ​

Returns ​

Overrides ​

Accessors ​

inner ​

Get Signature ​

Returns ​

Inherited from ​

Methods ​

[dispose]() ​

Returns ​

Inherited from ​

alwaysEq() ​

Parameters ​

b ​

Returns ​

and() ​

Parameters ​

other ​

Returns ​

appendInstant() ​

Parameters ​

inst ​

maxdist? ​

maxt? ​

expand? ​

Returns ​

Inherited from ​

appendSequence() ​

Parameters ​

seq ​

expand? ​

Returns ​

Inherited from ​

asHexWKB() ​

Returns ​

Inherited from ​

asMFJSON() ​

Parameters ​

withBbox? ​

flags? ​

precision? ​

srs? ​

Returns ​

Inherited from ​

at() ​

Parameters ​

b ​

Returns ​

atMax() ​

Returns ​

Inherited from ​

atMin() ​

Returns ​

Inherited from ​

atTsTzSet() ​

Parameters ​

s ​

Returns ​

Inherited from ​

atTsTzSpan() ​

Parameters ​

s ​

Returns ​

Inherited from ​

atTsTzSpanSet() ​

Parameters ​

ss ​

Returns ​

Inherited from ​

copy() ​

Returns ​

Inherited from ​

Class: TBool

Example

Extends

Extended by

Constructors

Constructor

Parameters

inner

Returns

Overrides

Accessors

inner

Get Signature

Returns

Inherited from

Methods

[dispose]()

Returns

Inherited from

alwaysEq()

Parameters

b

Returns

and()

Parameters

other

Returns

appendInstant()

Parameters

inst

maxdist?

maxt?

expand?

Returns

Inherited from

appendSequence()

Parameters

seq

expand?

Returns

Inherited from

asHexWKB()

Returns

Inherited from

asMFJSON()

Parameters

withBbox?

flags?

precision?

srs?

Returns

Inherited from

at()

Parameters

b

Returns

atMax()

Returns

Inherited from

atMin()

Returns

Inherited from

atTsTzSet()

Parameters

s

Returns

Inherited from

atTsTzSpan()

Parameters

s

Returns

Inherited from

atTsTzSpanSet()

Parameters

ss

Returns

Inherited from

copy()

Returns

Inherited from