@allmaps/stdlib

Allmaps Standard Library

License

MIT

API

angle(line)

Parameters

• line ([Point, Point])

Returns

number.

arrayMatrixSize(arrayMatrix)

Parameters

• arrayMatrix (Array<Array<T>>)

Returns

[number, number].

arrayRepeated(array, isEqualObject)

Parameters

• array (Array<T>)
• isEqualObject (((t0: T, t1: T) => boolean) | undefined)

Returns

Array<T>.

bboxToCenter(bbox)

Parameters

• bbox ([number, number, number, number])

Returns

[number, number].

bboxToDiameter(bbox)

Parameters

• bbox ([number, number, number, number])

Returns

number.

bboxToLine(bbox)

Parameters

• bbox ([number, number, number, number])

Returns

[Point, Point].

bboxToPolygon(bbox)

Parameters

• bbox ([number, number, number, number])

Returns

Array<Array<Point>>.

bboxToRectangle(bbox)

Parameters

• bbox ([number, number, number, number])

Returns

[Point, Point, Point, Point].

bboxToResolution(bbox)

Parameters

• bbox ([number, number, number, number])

Returns

number.

bboxToSize(bbox)

Parameters

• bbox ([number, number, number, number])

Returns

[number, number].

bboxesToScale(bbox0, bbox1)

Parameters

• bbox0 ([number, number, number, number])
• bbox1 ([number, number, number, number])

Returns

number.

bearing(line)

Parameters

• line ([Point, Point])

Returns

number.

bindPoint(point, min, max)

Parameters

• point ([number, number])
• min ([number, number])
• max ([number, number])

Returns

[number, number].

bindPointLngLatProjection(point)

Parameters

• point ([number, number])

Returns

[number, number].

bindPointWebMercatorProjection(point)

Parameters

• point ([number, number])

Returns

[number, number].

bindValue(value, min, max)

Parameters

• value (number)
• min (number)
• max (number)

Returns

number.

bufferBbox(bbox, dist0, dist1)

Parameters

• bbox ([number, number, number, number])
• dist0 (number)
• dist1 (number)

Returns

[number, number, number, number].

bufferBboxByRatio(bbox, ratio)

Parameters

• bbox ([number, number, number, number])
• ratio? (number | undefined)

Returns

[number, number, number, number].

camelCaseToWords(string)

Parameters

• string (string)

Returns

string.

closeMultiPolygon(multiPolygon)

Parameters

• multiPolygon (Array<Array<Array<Point>>>)

Returns

Array<Array<Array<Point>>>.

closePolygon(polygon)

Parameters

• polygon (Array<Array<Point>>)

Returns

Array<Array<Point>>.

closeRing(ring)

Parameters

• ring (Array<Point>)

Returns

Array<Point>.

combineBboxes(bboxes)

Parameters

• bboxes ([number, number, number, number])

Returns

Bbox | undefined.

computeBbox(points, options)

Parameters

• points (Geometry | GeojsonGeometry)
• options? (Partial<BboxOptions> | undefined)

Returns

[number, number, number, number].

computeMinMax(values)

Parameters

• values (Array<number>)

Returns

[number, number].

conformLineString(lineString)

Parameters

• lineString (Array<Point>)

Returns

Array<Point>.

conformMultiLineString(multiLineString)

Parameters

• multiLineString (Array<Array<Point>>)

Returns

Array<Array<Point>>.

conformMultiPolygon(multiPolygon)

Parameters

• multiPolygon (Array<Array<Array<Point>>>)

Returns

Array<Array<Array<Point>>>.

conformPolygon(polygon)

Parameters

• polygon (Array<Array<Point>>)

Returns

Array<Array<Point>>.

conformRing(ring)

Parameters

• ring (Array<Point>)

Returns

Array<Point>.

contractGeojsonGeometriesToGeojsonMultiGeometry(geojsonGeometries)

Parameters

• geojsonGeometries (Array<GeojsonPoint | GeojsonLineString | GeojsonPolygon>)

Returns

GeojsonMultiPoint | GeojsonMultiLineString | GeojsonMultiPolygon.

contractGeojsonLineStringsToGeojsonMultiLineString(geojsonLineStrings)

Parameters

• geojsonLineStrings (Array<GeojsonLineString>)

Returns

{type: 'MultiLineString'; coordinates: number[][][]}.

contractGeojsonPointsToGeojsonMultiPoint(geojsonPoints)

Parameters

• geojsonPoints (Array<GeojsonPoint>)

Returns

{type: 'MultiPoint'; coordinates: number[][]}.

contractGeojsonPolygonsToGeojsonMultiPolygon(geojsonPolygons)

Parameters

• geojsonPolygons (Array<GeojsonPolygon>)

Returns

{type: 'MultiPolygon'; coordinates: number[][][][]}.

convexHull(points)

Parameters

• points (Array<Point>)

Returns

Ring | undefined.

degreesToRadians(degrees)

Parameters

• degrees (number)

Returns

number.

distance(from, to)

Parameters

• from ([number, number])
• to ([number, number])

Returns

number.

doBboxesIntersect(bbox0, bbox1)

Parameters

• bbox0 ([number, number, number, number])
• bbox1 ([number, number, number, number])

Returns

boolean.

equalSet(set1, set2)

Parameters

• set1 (Set<T> | null)
• set2 (Set<T> | null)

Returns

boolean.

expandGeojsonMultiGeometryToGeojsonGeometries(geojsonMultiGeometry)

Parameters

• geojsonMultiGeometry (GeojsonMultiPoint | GeojsonMultiLineString | GeojsonMultiPolygon)

Returns

Array<GeojsonPoint> | Array<GeojsonLineString> | Array<GeojsonPolygon>.

expandGeojsonMultiLineStringToGeojsonLineStrings(geojsonMultiLineString)

Parameters

• geojsonMultiLineString ({type: 'MultiLineString'; coordinates: number[][][]})

Returns

Array<GeojsonLineString>.

expandGeojsonMultiPointToGeojsonPoints(geojsonMultiPoint)

Parameters

• geojsonMultiPoint ({type: 'MultiPoint'; coordinates: number[][]})

Returns

Array<GeojsonPoint>.

expandGeojsonMultiPolygonToGeojsonPolygons(geojsonMultiPolygon)

Parameters

• geojsonMultiPolygon ({type: 'MultiPolygon'; coordinates: number[][][][]})

Returns

Array<GeojsonPolygon>.

fetchAnnotationsFromApi(parsedIiif)

Parameters

• parsedIiif (Image | Manifest | Collection)

Returns

Promise<Array<unknown>>.

fetchImageBitmap(input, init, fetchFn)

Parameters

• input (RequestInfo | URL)
• init? (RequestInit | undefined)
• fetchFn? (FetchFn | undefined)

Returns

Promise<ImageBitmap>.

fetchImageInfo(imageUri, init, fetchFn)

Parameters

• imageUri (string)
• init? (RequestInit | undefined)
• fetchFn? (FetchFn | undefined)

Returns

Promise<unknown>.

fetchJson(input, init, fetchFn)

Parameters

• input (RequestInfo | URL)
• init? (RequestInit | undefined)
• fetchFn? (FetchFn | undefined)

Returns

Promise<unknown>.

fetchUrl(input, init, fetchFn)

Parameters

• input (RequestInfo | URL)
• init? (RequestInit | undefined)
• fetchFn? (FetchFn | undefined)

Returns

Promise<Response>.

flipX(point)

Parameters

• point ([number, number])

Returns

[number, number].

flipY(point)

Parameters

• point ([number, number])

Returns

[number, number].

geojsonFeatureCollectionToGeojsonGeometries(geojsonFeatureCollection)

Parameters

• geojsonFeatureCollection ({type: 'FeatureCollection'; features: GeojsonFeature[]})

Returns

Array<GeojsonGeometry>.

geojsonFeatureToGeojsonGeometry(geojsonFeature)

Parameters

• geojsonFeature ({type: 'Feature'; properties: unknown; geometry: GeojsonGeometry})

Returns

| GeojsonPoint | GeojsonLineString | GeojsonPolygon | GeojsonMultiPoint | GeojsonMultiLineString | GeojsonMultiPolygon.

geojsonFeaturesToGeojsonFeatureCollection(geojsonFeatures)

Parameters

• geojsonFeatures (GeojsonFeature | Array<GeojsonFeature>)

Returns

{type: 'FeatureCollection'; features: GeojsonFeature[]}.

geojsonGeometriesToGeojsonFeatureCollection(geojsonGeometries, properties)

Parameters

• geojsonGeometries (Array<GeojsonGeometry>)
• properties? (Array<unknown> | undefined)

Returns

{type: 'FeatureCollection'; features: GeojsonFeature[]}.

geojsonGeometryToGeojsonFeature(geojsonGeometry, properties)

Parameters

• geojsonGeometry ( | GeojsonPoint | GeojsonLineString | GeojsonPolygon | GeojsonMultiPoint | GeojsonMultiLineString | GeojsonMultiPolygon)
• properties? (unknown)

Returns

{type: 'Feature'; properties: unknown; geometry: GeojsonGeometry}.

geojsonGeometryToGeometry(geojsonPoint)

Parameters

• geojsonPoint ({type: 'Point'; coordinates: number[]})

Returns

[number, number].

geojsonGeometryToSvgGeometry(geojsonGeometry)

Parameters

• geojsonGeometry ( | GeojsonPoint | GeojsonLineString | GeojsonPolygon | GeojsonMultiPoint | GeojsonMultiLineString | GeojsonMultiPolygon)

Returns

SvgCircle | SvgLine | SvgPolyLine | SvgPolygon | SvgRect.

geojsonLineStringToLineString(geojsonLineString)

Parameters

• geojsonLineString ({type: 'LineString'; coordinates: number[][]})

Returns

Array<Point>.

geojsonMultiLineStringToMultiLineString(geojsonMultiLineString)

Parameters

• geojsonMultiLineString ({type: 'MultiLineString'; coordinates: number[][][]})

Returns

Array<Array<Point>>.

geojsonMultiPointToMultiPoint(geojsonMultiPoint)

Parameters

• geojsonMultiPoint ({type: 'MultiPoint'; coordinates: number[][]})

Returns

Array<Point>.

geojsonMultiPolygonToMultiPolygon(geojsonMultiPolygon, close)

Parameters

• geojsonMultiPolygon ({type: 'MultiPolygon'; coordinates: number[][][][]})
• close (boolean | undefined)

Returns

Array<Array<Array<Point>>>.

geojsonPointToPoint(geojsonPoint)

Parameters

• geojsonPoint ({type: 'Point'; coordinates: number[]})

Returns

[number, number].

geojsonPolygonToPolygon(geojsonPolygon, close)

Parameters

• geojsonPolygon ({type: 'Polygon'; coordinates: number[][][]})
• close (boolean | undefined)

Returns

Array<Array<Point>>.

geojsonPolygonToRing(geojsonPolygon, close)

Parameters

• geojsonPolygon ({type: 'Polygon'; coordinates: number[][][]})
• close (boolean | undefined)

Returns

Array<Point>.

geometryToDiameter(geometry)

Parameters

• geometry (Geometry | GeojsonGeometry)

Returns

number.

geometryToGeojsonGeometry(point, options)

Parameters

• point ([number, number])
• options? (Partial<MultiGeometryOptions> | undefined)

Returns

{type: 'Point'; coordinates: number[]}.

geometryToSvgGeometry(point)

Parameters

• point ([number, number])

Returns

{type: 'circle'; attributes?: SvgAttributes; coordinates: Point}.

getColorHistogram(colors, binSize)

Parameters

• colors (Array<Color>)
• binSize (number | undefined)

Returns

{[bin: string]: ColorCount}.

getColorsArray(imageData, resolution)

Parameters

• imageData (ImageData)
• resolution (number | undefined)

Returns

Array<Color>.

getFullResourceMask(imageWidth, imageHeight)

Parameters

• imageWidth (number)
• imageHeight (number)

Returns

Array<Point>.

getImageData(imageBitmap, mask)

Parameters

• imageBitmap (ImageBitmap)
• mask? (Array<Point> | undefined)

Returns

ImageData.

getMaxOccurringColor(histogram)

Parameters

• histogram ({[bin: string]: ColorCount})

Returns

{count: number; color: Color}.

getPropertyFromCacheOrComputation(cache, key, computation, checkUse, checkStore)

Parameters

• cache (Map<K, T>)
• key (K)
• computation (() => T)
• checkUse (((t: T) => boolean) | undefined)
• checkStore (((t: T) => boolean) | undefined)

Returns

T.

getPropertyFromDoubleCacheOrComputation(cache, key0, key1, computation, checkUse, checkStore)

Parameters

• cache (Map<K0, Map<K1, T>>)
• key0 (K0)
• key1 (K1)
• computation (() => T)
• checkUse (((t: T) => boolean) | undefined)
• checkStore (((t: T) => boolean) | undefined)

Returns

T.

getPropertyFromQuadrupleCacheOrComputation(cache, key0, key1, key2, key3, computation, checkUse, checkStore)

Parameters

• cache (Map<K0, Map<K1, Map<K2, Map<K3, T>>>>)
• key0 (K0)
• key1 (K1)
• key2 (K2)
• key3 (K3)
• computation (() => T)
• checkUse (((t: T) => boolean) | undefined)
• checkStore (((t: T) => boolean) | undefined)

Returns

T.

getPropertyFromTripleCacheOrComputation(cache, key0, key1, key2, computation, checkUse, checkStore)

Parameters

• cache (Map<K0, Map<K1, Map<K2, T>>>)
• key0 (K0)
• key1 (K1)
• key2 (K2)
• computation (() => T)
• checkUse (((t: T) => boolean) | undefined)
• checkStore (((t: T) => boolean) | undefined)

Returns

T.

groupBy(arr, key)

Parameters

• arr (Array<T>)
• key ((i: T) => K)

Returns

{[P in K]: Array<T>}.

hexToFractionalOpaqueRgba(hex)

Convert hex to fractional RGBA, and sets the transparency to 1

Parameters

• hex (string)
  • hex string, e.g. '#0033ffcc'

Returns

Fractional RGB, e ([number, number, number, number]).g. [0, 0.2, 1, 1]

hexToFractionalRgb(hex)

Convert hex to fractional RGB

Parameters

• hex (string)
  • hex string, e.g. '#0033ff'

Returns

Fractional RGB, e ([number, number, number]).g. [0, 0.2, 1]

hexToFractionalRgba(hex)

Convert hex to fractional RGBA

Parameters

• hex (string)
  • hex string, e.g. '#0033ffff'

Returns

Fractional RGB, e ([number, number, number, number]).g. [0, 0.2, 1, 1]

hexToOpaqueRgba(hex)

Convert HEX to RGB, and sets the transparency to 255

Parameters

• hex (string)
  • HEX string, e.g. '#0033ffcc'

Returns

RGB, e ([number, number, number, number]).g. [0, 51, 255, 255]

hexToRgb(hex)

Convert HEX to RGB

Parameters

• hex (string)
  • HEX string, e.g. '#0033ff'

Returns

RGB, e ([number, number, number]).g. [0, 51, 255]

hexToRgba(hex)

Convert HEX to RGB

Parameters

• hex (string)
  • HEX string, e.g. '#0033ffff'

Returns

RGB, e ([number, number, number, number]).g. [0, 51, 255, 255]

intersectBboxes(bbox0, bbox1)

Parameters

• bbox0 ([number, number, number, number])
• bbox1 ([number, number, number, number])

Returns

Bbox | undefined.

invertPoint(point)

Parameters

• point ([number, number])

Returns

[number, number].

invertPoints(points)

Parameters

• points (Array<Point>)

Returns

Array<Point>.

isClosed(input)

Parameters

• input (Array<Point>)

Returns

boolean.

isEqualArray(array0, array1, isEqualObject)

Parameters

• array0 (Array<T>)
• array1 (Array<T>)
• isEqualObject (((t0: T, t1: T) => boolean) | undefined)

Returns

boolean.

isEqualPoint(point0, point1)

Parameters

• point0 ([number, number])
• point1 ([number, number])

Returns

boolean.

isEqualPointArray(pointArray0, pointArray1)

Parameters

• pointArray0 (Array<Point>)
• pointArray1 (Array<Point>)

Returns

boolean.

isEqualPointArrayArray(pointArrayArray0, pointArrayArray1)

Parameters

• pointArrayArray0 (Array<Array<Point>>)
• pointArrayArray1 (Array<Array<Point>>)

Returns

boolean.

isGeojsonGeometry(obj)

Parameters

• obj (unknown)

Returns

boolean.

isGeojsonLineString(input)

Parameters

• input (unknown)

Returns

boolean.

isGeojsonMultiGeometry(obj)

Parameters

• obj (unknown)

Returns

boolean.

isGeojsonMultiLineString(input)

Parameters

• input (unknown)

Returns

boolean.

isGeojsonMultiPoint(input)

Parameters

• input (unknown)

Returns

boolean.

isGeojsonMultiPolygon(input)

Parameters

• input (unknown)

Returns

boolean.

isGeojsonPoint(input)

Parameters

• input (unknown)

Returns

boolean.

isGeojsonPolygon(input)

Parameters

• input (unknown)

Returns

boolean.

isGeometry(input)

Parameters

• input (unknown)

Returns

boolean.

isLineString(input)

Parameters

• input (unknown)

Returns

boolean.

isMultiLineString(input)

Parameters

• input (unknown)

Returns

boolean.

isMultiPoint(input)

Parameters

• input (unknown)

Returns

boolean.

isMultiPolygon(input)

Parameters

• input (unknown)

Returns

boolean.

isPoint(input)

Parameters

• input (unknown)

Returns

boolean.

isPolygon(input)

Parameters

• input (unknown)

Returns

boolean.

isRing(input)

Parameters

• input (unknown)

Returns

boolean.

isSvgCircle(input)

Parameters

• input (any)

Returns

boolean.

isSvgLine(input)

Parameters

• input (any)

Returns

boolean.

isSvgPolyLine(input)

Parameters

• input (any)

Returns

boolean.

isSvgPolygon(input)

Parameters

• input (any)

Returns

boolean.

isSvgRect(input)

Parameters

• input (any)

Returns

boolean.

isValidHttpUrl(string)

Parameters

• string (string)

Returns

boolean.

lineAngle(line)

Parameters

• line ([Point, Point])

Returns

number.

lineStringToGeojsonLineString(lineString)

Parameters

• lineString (Array<Point>)

Returns

{type: 'LineString'; coordinates: number[][]}.

lineStringToLines(lineString)

Parameters

• lineString (Array<Point>)

Returns

Array<Line>.

linesIntersectionPoint(line0, line1, options)

Parameters

• line0 ([Point, Point])
• line1 ([Point, Point])
• options? (Partial<IntersectionOptions> | undefined)

Returns

Point | undefined.

mapToResourceMaskSvgPolygon(map)

Parameters

• map ({ type: "GeoreferencedMap"; resource: { type: "ImageService1" | "ImageService2" | "ImageService3" | "Canvas"; id: string; height?: number | undefined; width?: number | undefined; partOf?: ({ type: string; id: string; label?: Record<string, (string | number | boolean)[]> | undefined; } & { partOf?: ({ type: string; i...)

Returns

{type: 'polygon'; attributes?: SvgAttributes; coordinates: Ring}.

mergeGeojsonFeaturesCollections(geojsonFeatureCollections)

Parameters

• geojsonFeatureCollections (Array<GeojsonFeatureCollection>)

Returns

{type: 'FeatureCollection'; features: GeojsonFeature[]}.

mergeOptions(baseOptions, additionalPartialOptions)

Parameters

• baseOptions (T)
• additionalPartialOptions (U[0])

Returns

T & U[number].

mergeOptionsUnlessUndefined(baseOptions, additionalOptions)

Parameters

• baseOptions (T)
• additionalOptions (Partial<U> | undefined)

Returns

T & Partial<U>.

mergePartialOptions(partialOptions)

Parameters

• partialOptions (U[0])

Returns

{[P in keyof U[number]]?: U[number][P] | undefined}.

mergeTwoOptionsUnlessUndefined(baseOptions, additionalOption)

Parameters

• baseOptions (T)
• additionalOption (Partial<U> | undefined)

Returns

T & Partial<U>.

midPoint(points)

Parameters

• points ([number, number])

Returns

[number, number].

mixLineStrings(lineString0, lineString1, t)

Parameters

• lineString0 (Array<Point>)
• lineString1 (Array<Point>)
• t (number)

Returns

Array<Point>.

mixNumbers(number0, number1, t)

Parameters

• number0 (number)
• number1 (number)
• t (number)

Returns

number.

mixPoints(point0, point1, t)

Parameters

• point0 ([number, number])
• point1 ([number, number])
• t (number)

Returns

[number, number].

multiLineStringToGeojsonMultiLineString(multiLineString)

Parameters

• multiLineString (Array<Array<Point>>)

Returns

{type: 'MultiLineString'; coordinates: number[][][]}.

multiPointToGeojsonMultiPoint(multiPoint)

Parameters

• multiPoint (Array<Point>)

Returns

{type: 'MultiPoint'; coordinates: number[][]}.

multiPolygonToGeojsonMultiPolygon(multiPolygon, close)

Parameters

• multiPolygon (Array<Array<Array<Point>>>)
• close (boolean | undefined)

Returns

{type: 'MultiPolygon'; coordinates: number[][][][]}.

multiplyArrayMatrix(arrayMatrix, factor)

Parameters

• arrayMatrix (Array<Array<number>>)
• factor (number)

Returns

Array<Array<number>>.

newArrayMatrix(rows, cols, value)

Create and fill a ArrayMatrix: an Arrays of Arrays, that can later be loaded as a ml-matrix Matrix

Parameters

• rows (number)
• cols (number)
• value (T | undefined)

Returns

Array<Array<T>>.

newBlockArrayMatrix(blocks, emptyValue)

Parameters

• blocks (Array<Array<Array<Array<T>>>>)
• emptyValue (T | undefined)

Returns

Array<Array<T>>.

objectDifference(newObject, baseObject, objectKeysPossiblyChanged)

Parameters

• newObject (object)
• baseObject (object)
• objectKeysPossiblyChanged? (Array<string> | undefined)

Returns

object.

omit(object, keys)

Parameters

• object (T)
• keys (Array<string>)

Returns

{[P in keyof T]?: T[P] | undefined}.

optionKeysByMapIdToUndefinedOptionsByMapId(optionKeysByMapId)

Parameters

• optionKeysByMapId (Map<string, T> | undefined)

Returns

Map<string, Record<T[number], undefined>> | undefined.

optionKeysToUndefinedOptions(optionKeys)

Parameters

• optionKeys (T | undefined)

Returns

Record<T[number], undefined> | undefined.

pasteArrayMatrix(arrayMatrix, rowsStart, colsStart, subArrayMatrix)

Parameters

• arrayMatrix (Array<Array<T>>)
• rowsStart (number)
• colsStart (number)
• subArrayMatrix (Array<Array<T>>)

Returns

Array<Array<T>>.

pixelToIntArrayIndex(pixel, size, channels, flipY)

Parameters

• pixel ([number, number])
• size ([number, number])
• channels (number)
• flipY (boolean | undefined)

Returns

number.

pointInBbox(point, bbox)

Parameters

• point ([number, number])
• bbox ([number, number, number, number])

Returns

boolean.

pointToGeojsonPoint(point)

Parameters

• point ([number, number])

Returns

{type: 'Point'; coordinates: number[]}.

pointToPixel(point, translate)

Parameters

• point ([number, number])
• translate (Point | undefined)

Returns

[number, number].

pointsAndPointsToLines(points0, points1)

Parameters

• points0 (Array<Point>)
• points1 (Array<Point>)

Returns

Array<Line>.

polygonSelfIntersectionPoints(polygon, options)

Parameters

• polygon (Array<Array<Point>>)
• options? (Partial<IntersectionOptions> | undefined)

Returns

Array<Point>.

polygonToGeojsonPolygon(polygon, close)

Parameters

• polygon (Array<Array<Point>>)
• close (boolean | undefined)

Returns

{type: 'Polygon'; coordinates: number[][][]}.

prolongedLinesIntersectionPoint(line0, line1)

Parameters

• line0 ([Point, Point])
• line1 ([Point, Point])

Returns

Point | undefined.

radiansToDegrees(radians)

Parameters

• radians (number)

Returns

number.

rectangleToSize(rectangle)

Parameters

• rectangle ([Point, Point, Point, Point])

Returns

[number, number].

rectanglesToScale(rectangle0, rectangle1)

Parameters

• rectangle0 ([Point, Point, Point, Point])
• rectangle1 ([Point, Point, Point, Point])

Returns

number.

rgbToHex(color)

Convert RBG to HEX

Parameters

• color ([number, number, number])

Returns

HEX string, e (string).g. '#0033ff'

rgbaToHex(color)

Convert RBGA to HEX

Parameters

• color ([number, number, number, number])

Returns

HEX string, e (string).g. '#0033ffff'

ringToGeojsonPolygon(ring, close)

Parameters

• ring (Array<Point>)
• close (boolean | undefined)

Returns

{type: 'Polygon'; coordinates: number[][][]}.

rms(from, to)

Parameters

• from (Array<Point>)
• to (Array<Point>)

Returns

number.

rotatePoint(point, angle, anchor, cosAngle, sinAngle)

Parameters

• point ([number, number])
• angle (number | undefined)
• anchor (Point | undefined)
• cosAngle? (number | undefined)
• sinAngle? (number | undefined)

Returns

[number, number].

rotatePoints(points, angle, anchor, cosAngle, sinAngle)

Parameters

• points (Array<Point>)
• angle (number | undefined)
• anchor (Point | undefined)
• cosAngle? (number | undefined)
• sinAngle? (number | undefined)

Returns

Array<Point>.

scalePoint(point, scale)

Parameters

• point ([number, number])
• scale (number)

Returns

[number, number].

scalePoints(points, scale)

Parameters

• points (Array<Point>)
• scale (number)

Returns

Array<Point>.

scaleSize(size, scale)

Parameters

• size ([number, number])
• scale (number)

Returns

[number, number].

shallowCopyArrayMatrix(arrayMatrix)

Parameters

• arrayMatrix (Array<Array<T>>)

Returns

Array<Array<T>>.

sizeToBbox(size)

Parameters

• size ([number, number])

Returns

[number, number, number, number].

sizeToCenter(size)

Parameters

• size ([number, number])

Returns

[number, number].

sizeToRectangle(size)

Parameters

• size ([number, number])

Returns

[Point, Point, Point, Point].

sizeToResolution(size)

Parameters

• size ([number, number])

Returns

number.

sizesToScale(size0, size1, fit)

Compute a size from two scales

For unspecified 'fit', the scale is computed based on the surface area derived from the sizes.

For specified 'fit':

Example for square rectangles '*' and '+':

'contain' where '*' contains '.' (in the first image size0 is relatively wider)

           ****
           *  *

.... ....

• . . * . . .... .... * * ****

'cover' where '*' is covered by '.' (in the first image size0 is relatively wider)

           ....
           .  .

.... **** . * * . * * .... **** . . ....

Parameters

• size0 ([number, number])
  • first size
• size1 ([number, number])
  • second size
• fit? (Fit | undefined)
  • fit

Returns

number.

sliceArrayMatrix(arrayMatrix, rowsStart, colsStart, rowsEnd, colsEnd)

Parameters

• arrayMatrix (Array<Array<T>>)
• rowsStart (number)
• colsStart (number)
• rowsEnd? (number | undefined)
• colsEnd? (number | undefined)

Returns

Array<Array<T>>.

squaredDistance(from, to)

Parameters

• from ([number, number])
• to (Point | undefined)

Returns

number.

stepDistanceAngle(point, dist, angle)

Parameters

• point ([number, number])
• dist (number)
• angle (number)

Returns

[number, number].

stringToSvgGeometriesGenerator(svg)

Parameters

• svg (string)

Returns

Generator<SvgGeometry, void, unknown>.

subArrayMatrix(arrayMatrix, rows, cols)

Parameters

• arrayMatrix (Array<Array<T>>)
• rows (Array<number>)
• cols (Array<number>)

Returns

Array<Array<T>>.

subSetArray(arr1, arr2)

Parameters

• arr1 (Array<T>)
• arr2 (Array<T>)

Returns

boolean.

svgGeometriesToSvgString(geometries)

Parameters

• geometries (Array<SvgGeometry>)

Returns

string.

svgGeometryToGeometry(svgCircle)

Parameters

• svgCircle ({type: 'circle'; attributes?: SvgAttributes; coordinates: Point})

Returns

[number, number].

svgGeometryToString(geometry)

Parameters

• geometry (SvgCircle | SvgLine | SvgPolyLine | SvgPolygon | SvgRect)

Returns

string.

threePointsToAngle(pointA, pointB, pointC)

Return angle alpha made at point A by points B and C

Parameters

• pointA ([number, number])
• pointB ([number, number])
• pointC ([number, number])

Returns

number.

translatePoint(point, translationPoint, addOrSubstract)

Parameters

• point ([number, number])
• translationPoint ([number, number])
• addOrSubstract ('add' | 'substract' | undefined)

Returns

[number, number].

translatePoints(points, point, addOrSubstract)

Parameters

• points (Array<Point>)
• point ([number, number])
• addOrSubstract ('add' | 'substract' | undefined)

Returns

Array<Point>.

transposeArrayMatrix(arrayMatrix)

Parameters

• arrayMatrix (Array<Array<T>>)

Returns

Array<Array<T>>.

triangleAngles(triangle)

Parameters

• triangle ([Point, Point, Point])

Returns

[number, number, number].

triangleArea(triangle)

Parameters

• triangle ([Point, Point, Point])

Returns

number.

uncloseMultiPolygon(multiPolygon)

Parameters

• multiPolygon (Array<Array<Array<Point>>>)

Returns

Array<Array<Array<Point>>>.

unclosePolygon(polygon)

Parameters

• polygon (Array<Array<Point>>)

Returns

Array<Array<Point>>.

uncloseRing(ring)

Parameters

• ring (Array<Point>)

Returns

Array<Point>.