GPKGFeatureTiles Class Reference


                    
                    
                    indexManager

When not null, features are retrieved using a feature index

Declaration

Objective-C

@property (nonatomic, strong) GPKGFeatureIndexManager *indexManager;

Swift

var indexManager: GPKGFeatureIndexManager! { get set }

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                    featureTableStyles

Feature Style extension

Declaration

Objective-C

@property (nonatomic, strong) GPKGFeatureTableStyles *featureTableStyles;

Swift

var featureTableStyles: GPKGFeatureTableStyles! { get set }

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                    tileWidth

Tile width

Declaration

Objective-C

@property (nonatomic) int tileWidth;

Swift

var tileWidth: Int32 { get set }

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                    tileHeight

Tile height

Declaration

Objective-C

@property (nonatomic) int tileHeight;

Swift

var tileHeight: Int32 { get set }

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                    compressFormat

Compress format

Declaration

Objective-C

@property (nonatomic) enum GPKGCompressFormat compressFormat;

Swift

var compressFormat: GPKGCompressFormat { get set }

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                    pointRadius

Point radius

Declaration

Objective-C

@property (nonatomic) double pointRadius;

Swift

var pointRadius: Double { get set }

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                    pointColor

Point color

Declaration

Objective-C

@property (nonatomic) int *pointColor;

Swift

var pointColor: UnsafeMutablePointer<Int32>! { get set }

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                    pointIcon

Optional point icon in place of a drawn circle

Declaration

Objective-C

@property (nonatomic, strong) GPKGFeatureTilePointIcon *pointIcon;

Swift

var pointIcon: GPKGFeatureTilePointIcon! { get set }

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                    lineStrokeWidth

Line stroke width

Declaration

Objective-C

@property (nonatomic) double lineStrokeWidth;

Swift

var lineStrokeWidth: Double { get set }

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                    lineColor

Line color

Declaration

Objective-C

@property (nonatomic) int *lineColor;

Swift

var lineColor: UnsafeMutablePointer<Int32>! { get set }

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                    polygonStrokeWidth

Polygon stroke width

Declaration

Objective-C

@property (nonatomic) double polygonStrokeWidth;

Swift

var polygonStrokeWidth: Double { get set }

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                    polygonColor

Polygon color

Declaration

Objective-C

@property (nonatomic) int *polygonColor;

Swift

var polygonColor: UnsafeMutablePointer<Int32>! { get set }

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                    fillPolygon

When true, polygon is filled with color

Declaration

Objective-C

@property (nonatomic) BOOL fillPolygon;

Swift

var fillPolygon: Bool { get set }

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                    polygonFillColor

Polygon fill color

Declaration

Objective-C

@property (nonatomic) int *polygonFillColor;

Swift

var polygonFillColor: UnsafeMutablePointer<Int32>! { get set }

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                    heightOverlap

Height overlapping pixels between tile images

Declaration

Objective-C

@property (nonatomic) double heightOverlap;

Swift

var heightOverlap: Double { get set }

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                    widthOverlap

Width overlapping pixels between tile images

Declaration

Objective-C

@property (nonatomic) double widthOverlap;

Swift

var widthOverlap: Double { get set }

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                    maxFeaturesPerTile

Optional max features per tile. When more features than this value exist for creating a single tile, the tile is not created

Declaration

Objective-C

@property (nonatomic, strong) NSNumber *maxFeaturesPerTile;

Swift

var maxFeaturesPerTile: NSNumber! { get set }

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                    maxFeaturesTileDraw

When not null and the number of features is greater than the max features per tile, used to draw tiles for those tiles with more features than the max

Declaration

Objective-C

@property (nonatomic, strong) NSObject<GPKGCustomFeaturesTile> *maxFeaturesTileDraw;

Swift

var maxFeaturesTileDraw: (any GPKGCustomFeaturesTile)! { get set }

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                    simplifyGeometries

When true, geometries are simplified before being drawn. Default is true

Declaration

Objective-C

@property (nonatomic) BOOL simplifyGeometries;

Swift

var simplifyGeometries: Bool { get set }

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                    geodesic

Draw geometries using geodesic lines

Declaration

Objective-C

@property (nonatomic) BOOL geodesic;

Swift

var geodesic: Bool { get set }

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                    scale

Scale factor from pixels to map points

Declaration

Objective-C

@property (nonatomic) float scale;

Swift

var scale: Float { get set }

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                    cacheBoundingBoxes

When true, geometry bounds are cached. Default is true

Declaration

Objective-C

@property (nonatomic) BOOL cacheBoundingBoxes;

Swift

var cacheBoundingBoxes: Bool { get set }

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                    cacheMapShapes

When true, geometry map shapes are cached. Default is true

Declaration

Objective-C

@property (nonatomic) BOOL cacheMapShapes;

Swift

var cacheMapShapes: Bool { get set }

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                    -initWithFeatureDao:

Initialize

Declaration

Objective-C

- (instancetype)initWithFeatureDao:(GPKGFeatureDao *)featureDao;

Swift

init!(featureDao: GPKGFeatureDao!)

Parameters


                                featureDao

feature dao

Return Value

new feature tiles

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                    -initWithFeatureDao:andGeodesic:

Initialize

Declaration

Objective-C

- (instancetype)initWithFeatureDao:(GPKGFeatureDao *)featureDao
                       andGeodesic:(BOOL)geodesic;

Swift

init!(featureDao: GPKGFeatureDao!, andGeodesic geodesic: Bool)

Parameters

`featureDao`	feature dao
`geodesic`	draw geometries using geodesic lines

Return Value

new feature tiles

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                    -initWithFeatureDao:andScale:

Initialize

Declaration

Objective-C

- (instancetype)initWithFeatureDao:(GPKGFeatureDao *)featureDao
                          andScale:(float)scale;

Swift

init!(featureDao: GPKGFeatureDao!, andScale scale: Float)

Parameters

`featureDao`	feature dao
`scale`	scale factor

Return Value

new feature tiles

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                    -initWithFeatureDao:andScale:andGeodesic:

Initialize

Declaration

Objective-C

- (instancetype)initWithFeatureDao:(GPKGFeatureDao *)featureDao
                          andScale:(float)scale
                       andGeodesic:(BOOL)geodesic;

Swift

init!(featureDao: GPKGFeatureDao!, andScale scale: Float, andGeodesic geodesic: Bool)

Parameters

`featureDao`	feature dao
`scale`	scale factor
`geodesic`	draw geometries using geodesic lines

Return Value

new feature tiles

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                    -initWithFeatureDao:andWidth:andHeight:

Initialize

Declaration

Objective-C

- (instancetype)initWithFeatureDao:(GPKGFeatureDao *)featureDao
                          andWidth:(int)width
                         andHeight:(int)height;

Swift

init!(featureDao: GPKGFeatureDao!, andWidth width: Int32, andHeight height: Int32)

Parameters

`featureDao`	feature dao
`width`	drawn tile width
`height`	drawn tile height

Return Value

new feature tiles

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                    -initWithFeatureDao:andWidth:andHeight:andGeodesic:

Initialize

Declaration

Objective-C

- (instancetype)initWithFeatureDao:(GPKGFeatureDao *)featureDao
                          andWidth:(int)width
                         andHeight:(int)height
                       andGeodesic:(BOOL)geodesic;

Swift

init!(featureDao: GPKGFeatureDao!, andWidth width: Int32, andHeight height: Int32, andGeodesic geodesic: Bool)

Parameters

`featureDao`	feature dao
`width`	drawn tile width
`height`	drawn tile height
`geodesic`	draw geometries using geodesic lines

Return Value

new feature tiles

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                    -initWithGeoPackage:andFeatureDao:

Initialize, auto creates the index manager for indexed tables and feature styles for styled tables

Declaration

Objective-C

- (instancetype)initWithGeoPackage:(GPKGGeoPackage *)geoPackage
                     andFeatureDao:(GPKGFeatureDao *)featureDao;

Swift

init!(geoPackage: GPKGGeoPackage!, andFeatureDao featureDao: GPKGFeatureDao!)

Parameters

`geoPackage`	GeoPackage
`featureDao`	feature dao

Return Value

new feature tiles

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                    -initWithGeoPackage:andFeatureDao:andGeodesic:

Initialize, auto creates the index manager for indexed tables and feature styles for styled tables

Declaration

Objective-C

- (instancetype)initWithGeoPackage:(GPKGGeoPackage *)geoPackage
                     andFeatureDao:(GPKGFeatureDao *)featureDao
                       andGeodesic:(BOOL)geodesic;

Swift

init!(geoPackage: GPKGGeoPackage!, andFeatureDao featureDao: GPKGFeatureDao!, andGeodesic geodesic: Bool)

Parameters

`geoPackage`	GeoPackage
`featureDao`	feature dao
`geodesic`	draw geometries using geodesic lines

Return Value

new feature tiles

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                    -initWithGeoPackage:andFeatureDao:andScale:

Initialize, auto creates the index manager for indexed tables and feature styles for styled tables

Declaration

Objective-C

- (instancetype)initWithGeoPackage:(GPKGGeoPackage *)geoPackage
                     andFeatureDao:(GPKGFeatureDao *)featureDao
                          andScale:(float)scale;

Swift

init!(geoPackage: GPKGGeoPackage!, andFeatureDao featureDao: GPKGFeatureDao!, andScale scale: Float)

Parameters

`geoPackage`	GeoPackage
`featureDao`	feature dao
`scale`	scale factor

Return Value

new feature tiles

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                    -initWithGeoPackage:andFeatureDao:andScale:andGeodesic:

Initialize, auto creates the index manager for indexed tables and feature styles for styled tables

Declaration

Objective-C

- (instancetype)initWithGeoPackage:(GPKGGeoPackage *)geoPackage
                     andFeatureDao:(GPKGFeatureDao *)featureDao
                          andScale:(float)scale
                       andGeodesic:(BOOL)geodesic;

Swift

init!(geoPackage: GPKGGeoPackage!, andFeatureDao featureDao: GPKGFeatureDao!, andScale scale: Float, andGeodesic geodesic: Bool)

Parameters

`geoPackage`	GeoPackage
`featureDao`	feature dao
`scale`	scale factor
`geodesic`	draw geometries using geodesic lines

Return Value

new feature tiles

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                    -initWithGeoPackage:andFeatureDao:andWidth:andHeight:

Initialize, auto creates the index manager for indexed tables and feature styles for styled tables

Declaration

Objective-C

- (instancetype)initWithGeoPackage:(GPKGGeoPackage *)geoPackage
                     andFeatureDao:(GPKGFeatureDao *)featureDao
                          andWidth:(int)width
                         andHeight:(int)height;

Swift

init!(geoPackage: GPKGGeoPackage!, andFeatureDao featureDao: GPKGFeatureDao!, andWidth width: Int32, andHeight height: Int32)

Parameters

`geoPackage`	GeoPackage
`featureDao`	feature dao
`width`	drawn tile width
`height`	drawn tile height

Return Value

new feature tiles

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                    -initWithGeoPackage:andFeatureDao:andWidth:andHeight:andGeodesic:

Initialize, auto creates the index manager for indexed tables and feature styles for styled tables

Declaration

Objective-C

- (instancetype)initWithGeoPackage:(GPKGGeoPackage *)geoPackage
                     andFeatureDao:(GPKGFeatureDao *)featureDao
                          andWidth:(int)width
                         andHeight:(int)height
                       andGeodesic:(BOOL)geodesic;

Swift

init!(geoPackage: GPKGGeoPackage!, andFeatureDao featureDao: GPKGFeatureDao!, andWidth width: Int32, andHeight height: Int32, andGeodesic geodesic: Bool)

Parameters

`geoPackage`	GeoPackage
`featureDao`	feature dao
`width`	drawn tile width
`height`	drawn tile height
`geodesic`	draw geometries using geodesic lines

Return Value

new feature tiles

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                    -initWithGeoPackage:andFeatureDao:andScale:andWidth:andHeight:

Initialize, auto creates the index manager for indexed tables and feature styles for styled tables

Declaration

Objective-C

- (instancetype)initWithGeoPackage:(GPKGGeoPackage *)geoPackage
                     andFeatureDao:(GPKGFeatureDao *)featureDao
                          andScale:(float)scale
                          andWidth:(int)width
                         andHeight:(int)height;

Swift

init!(geoPackage: GPKGGeoPackage!, andFeatureDao featureDao: GPKGFeatureDao!, andScale scale: Float, andWidth width: Int32, andHeight height: Int32)

Parameters

`geoPackage`	GeoPackage
`featureDao`	feature dao
`scale`	scale factor
`width`	drawn tile width
`height`	drawn tile height

Return Value

new feature tiles

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                    -initWithGeoPackage:andFeatureDao:andScale:andWidth:andHeight:andGeodesic:

Initialize, auto creates the index manager for indexed tables and feature styles for styled tables

Declaration

Objective-C

- (instancetype)initWithGeoPackage:(GPKGGeoPackage *)geoPackage
                     andFeatureDao:(GPKGFeatureDao *)featureDao
                          andScale:(float)scale
                          andWidth:(int)width
                         andHeight:(int)height
                       andGeodesic:(BOOL)geodesic;

Swift

init!(geoPackage: GPKGGeoPackage!, andFeatureDao featureDao: GPKGFeatureDao!, andScale scale: Float, andWidth width: Int32, andHeight height: Int32, andGeodesic geodesic: Bool)

Parameters

`geoPackage`	GeoPackage
`featureDao`	feature dao
`scale`	scale factor
`width`	drawn tile width
`height`	drawn tile height
`geodesic`	draw geometries using geodesic lines

Return Value

new feature tiles

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                    -featureDao

Get the feature dao

Declaration

Objective-C

- (GPKGFeatureDao *)featureDao;

Swift

func featureDao() -> GPKGFeatureDao!

Return Value

feature dao

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                    -close

Close the feature tiles connection

Declaration

Objective-C

- (void)close;

Swift

func close()

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                    -calculateDrawOverlap

Call after making changes to the point icon, point radius, or paint stroke widths. Determines the pixel overlap between tiles

Declaration

Objective-C

- (void)calculateDrawOverlap;

Swift

func calculateDrawOverlap()

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                    -setDrawOverlapsWithPixels:

Manually set the width and height draw overlap

Declaration

Objective-C

- (void)setDrawOverlapsWithPixels:(double)pixels;

Swift

func setDrawOverlapsWithPixels(_ pixels: Double)

Parameters


                                pixels

pixels

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                    -isIndexQuery

Is index query

Declaration

Objective-C

- (BOOL)isIndexQuery;

Swift

func isIndexQuery() -> Bool

Return Value

true if an index query

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                    -ignoreFeatureTableStyles

Ignore the feature table styles within the GeoPackage

Declaration

Objective-C

- (void)ignoreFeatureTableStyles;

Swift

func ignoreFeatureTableStyles()

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                    -clearCache

Clear all caches

Declaration

Objective-C

- (void)clearCache;

Swift

func clearCache()

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                    -clearIconCache

Clear the icon cache

Declaration

Objective-C

- (void)clearIconCache;

Swift

func clearIconCache()

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                    -setIconCacheSize:

Set / resize the icon cache size

Declaration

Objective-C

- (void)setIconCacheSize:(int)size;

Swift

func setIconCacheSize(_ size: Int32)

Parameters


                                size

new size

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                    -clearBoundingBoxCache

Clear the bounding box cache

Declaration

Objective-C

- (void)clearBoundingBoxCache;

Swift

func clearBoundingBoxCache()

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                    -setBoundingBoxCacheSize:

Set / resize the bounding box cache size

Declaration

Objective-C

- (void)setBoundingBoxCacheSize:(int)size;

Swift

func setBoundingBoxCacheSize(_ size: Int32)

Parameters


                                size

new size

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                    -clearMapShapeCache

Clear the map shape cache

Declaration

Objective-C

- (void)clearMapShapeCache;

Swift

func clearMapShapeCache()

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                    -setMapShapeCacheSize:

Set / resize the map shape cache size

Declaration

Objective-C

- (void)setMapShapeCacheSize:(int)size;

Swift

func setMapShapeCacheSize(_ size: Int32)

Parameters


                                size

new size

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                    -drawTileDataWithX:andY:andZoom:

Draw the tile and get the tile data from the x, y, and zoom level

Declaration

Objective-C

- (NSData *)drawTileDataWithX:(int)x andY:(int)y andZoom:(int)zoom;

Swift

func drawTileDataWith(x: Int32, andY y: Int32, andZoom zoom: Int32) -> Data!

Parameters

`x`	x
`y`	y
`zoom`	zoom level

Return Value

tile data, or nil

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                    -drawTileWithX:andY:andZoom:

Draw a tile image from the x, y, and zoom level

Declaration

Objective-C

- (id)drawTileWithX:(int)x andY:(int)y andZoom:(int)zoom;

Swift

func drawTileWith(x: Int32, andY y: Int32, andZoom zoom: Int32) -> Any!

Parameters

`x`	x
`y`	y
`zoom`	zoom level

Return Value

tile image, or nil

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                    -drawTileQueryIndexWithX:andY:andZoom:

Draw a tile bitmap from the x, y, and zoom level by querying features in the tile location

Declaration

Objective-C

- (id)drawTileQueryIndexWithX:(int)x andY:(int)y andZoom:(int)zoom;

Swift

func drawTileQueryIndexWith(x: Int32, andY y: Int32, andZoom zoom: Int32) -> Any!

Parameters

`x`	x
`y`	y
`zoom`	zoom level

Return Value

tile image, or nil

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                    -queryIndexedFeaturesCountWithX:andY:andZoom:

Query for feature result count in the x, y, and zoom

Declaration

Objective-C

- (int)queryIndexedFeaturesCountWithX:(int)x andY:(int)y andZoom:(int)zoom;

Swift

func queryIndexedFeaturesCountWith(x: Int32, andY y: Int32, andZoom zoom: Int32) -> Int32

Parameters

`x`	x
`y`	y
`zoom`	zoom level

Return Value

feature count

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                    -queryIndexedFeaturesCountWithWebMercatorBoundingBox:

Query for feature result count in the bounding box

Declaration

Objective-C

- (int)queryIndexedFeaturesCountWithWebMercatorBoundingBox:
    (GPKGBoundingBox *)webMercatorBoundingBox;

Swift

func queryIndexedFeaturesCount(withWebMercatorBoundingBox webMercatorBoundingBox: GPKGBoundingBox!) -> Int32

Parameters


                                webMercatorBoundingBox

web mercator bounding box

Return Value

feature count

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                    -queryIndexedFeaturesWithX:andY:andZoom:

Query for feature results in the x, y, and zoom level by querying features in the tile location

Declaration

Objective-C

- (GPKGFeatureIndexResults *)queryIndexedFeaturesWithX:(int)x
                                                  andY:(int)y
                                               andZoom:(int)zoom;

Swift

func queryIndexedFeaturesWith(x: Int32, andY y: Int32, andZoom zoom: Int32) -> GPKGFeatureIndexResults!

Parameters

`x`	x coordinate
`y`	y coordinate
`zoom`	zoom level

Return Value

feature index results

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                    -queryIndexedFeaturesWithWebMercatorBoundingBox:

Query for feature results in the x, y, and zoom level by querying features in the tile location

Declaration

Objective-C

- (GPKGFeatureIndexResults *)queryIndexedFeaturesWithWebMercatorBoundingBox:
    (GPKGBoundingBox *)webMercatorBoundingBox;

Swift

func queryIndexedFeatures(withWebMercatorBoundingBox webMercatorBoundingBox: GPKGBoundingBox!) -> GPKGFeatureIndexResults!

Parameters


                                webMercatorBoundingBox

web mercator bounding box

Return Value

feature index results

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                    -expandBoundingBox:inProjection:

Create an expanded bounding box to handle features outside the tile that overlap

Declaration

Objective-C

- (GPKGBoundingBox *)expandBoundingBox:(GPKGBoundingBox *)boundingBox
                          inProjection:(PROJProjection *)projection;

Swift

func expand(_ boundingBox: GPKGBoundingBox!, in projection: PROJProjection!) -> GPKGBoundingBox!

Parameters

`boundingBox`	bounding box
`projection`	bounding box projection

Return Value

bounding box

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                    -expandBoundingBox:

Create an expanded bounding box to handle features outside the tile that overlap

Declaration

Objective-C

- (GPKGBoundingBox *)expandBoundingBox:
    (GPKGBoundingBox *)webMercatorBoundingBox;

Swift

func expand(_ webMercatorBoundingBox: GPKGBoundingBox!) -> GPKGBoundingBox!

Parameters


                                webMercatorBoundingBox

web mercator bounding box

Return Value

bounding box

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                    -expandBoundingBox:withTileBoundingBox:

Create an expanded bounding box to handle features outside the tile that overlap

Declaration

Objective-C

- (GPKGBoundingBox *)expandBoundingBox:(GPKGBoundingBox *)webMercatorBoundingBox
                   withTileBoundingBox:
                       (GPKGBoundingBox *)tileWebMercatorBoundingBox;

Swift

func expand(_ webMercatorBoundingBox: GPKGBoundingBox!, withTileBoundingBox tileWebMercatorBoundingBox: GPKGBoundingBox!) -> GPKGBoundingBox!

Parameters

`webMercatorBoundingBox`	web mercator bounding box
`tileWebMercatorBoundingBox`	tile web mercator bounding box

Return Value

bounding box

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                    -drawTileQueryAllWithX:andY:andZoom:

Draw a tile image from the x, y, and zoom level by querying all features. This could be very slow if there are a lot of features

Declaration

Objective-C

- (id)drawTileQueryAllWithX:(int)x andY:(int)y andZoom:(int)zoom;

Swift

func drawTileQueryAllWith(x: Int32, andY y: Int32, andZoom zoom: Int32) -> Any!

Parameters

`x`	x
`y`	y
`zoom`	zoom level

Return Value

tile image, or nil

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                    -calculateStylePixelBounds

Calculate style pixel bounds

Declaration

Objective-C

- (GPKGPixelBounds *)calculateStylePixelBounds;

Swift

func calculateStylePixelBounds() -> GPKGPixelBounds!

Return Value

pixel bounds

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                    -calculateStylePixelBoundsWithScale:

Calculate style pixel bounds

Declaration

Objective-C

- (GPKGPixelBounds *)calculateStylePixelBoundsWithScale:(float)scale;

Swift

func calculateStylePixelBounds(withScale scale: Float) -> GPKGPixelBounds!

Parameters


                                scale

scale factor

Return Value

pixel bounds

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                    -drawTileWithZoom:andBoundingBox:andIndexResults:

Draw a tile image from feature index results

Declaration

Objective-C

- (id)drawTileWithZoom:(int)zoom
        andBoundingBox:(GPKGBoundingBox *)webMercatorBoundingBox
       andIndexResults:(GPKGFeatureIndexResults *)results;

Swift

func drawTile(withZoom zoom: Int32, andBoundingBox webMercatorBoundingBox: GPKGBoundingBox!, andIndexResults results: GPKGFeatureIndexResults!) -> Any!

Parameters

`zoom`	zoom level
`webMercatorBoundingBox`	web mercator bounding box
`results`	feature index results

Return Value

tile image

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                    -drawTileWithZoom:andBoundingBox:andResults:

Draw a tile image from feature geometries in the provided result set

Declaration

Objective-C

- (id)drawTileWithZoom:(int)zoom
        andBoundingBox:(GPKGBoundingBox *)webMercatorBoundingBox
            andResults:(GPKGResultSet *)results;

Swift

func drawTile(withZoom zoom: Int32, andBoundingBox webMercatorBoundingBox: GPKGBoundingBox!, andResults results: GPKGResultSet!) -> Any!

Parameters

`zoom`	zoom level
`webMercatorBoundingBox`	web mercator bounding box
`results`	result set

Return Value

tile image

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                    -drawTileWithZoom:andBoundingBox:andFeatureRows:

Draw a tile image from the feature rows

Declaration

Objective-C

- (id)drawTileWithZoom:(int)zoom
        andBoundingBox:(GPKGBoundingBox *)webMercatorBoundingBox
        andFeatureRows:(NSArray *)featureRows;

Swift

func drawTile(withZoom zoom: Int32, andBoundingBox webMercatorBoundingBox: GPKGBoundingBox!, andFeatureRows featureRows: [Any]!) -> Any!

Parameters

`zoom`	zoom level
`webMercatorBoundingBox`	web mercator bounding box
`featureRows`	feature rows

Return Value

tile image

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