gis

package

v0.0.0-...-9050db6 Latest Latest Go to latest Published: Sep 9, 2023 License: GPL-3.0 Imports: 19 Imported by: 0

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Repository

github.com/wisepythagoras/gis-utils

Links

Open Source Insights

Documentation ¶

Index ¶

func Tile2Lat(y, z uint32) float64
func Tile2Lon(x, z uint32) float64
type BBox
- func GetTileBBox(x, y, z uint32) *BBox
- func (b *BBox) ToGeoJSONStr() ([]byte, error)
type Image
type PBF
type Point
type RawPoint
type RichWay
type ShapePolygon
type Shapefile

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func Tile2Lat ¶

func Tile2Lat(y, z uint32) float64

func Tile2Lon ¶

func Tile2Lon(x, z uint32) float64

Types ¶

type BBox ¶

type BBox struct {
	SW Point
	NE Point
}

func GetTileBBox ¶

func GetTileBBox(x, y, z uint32) *BBox

Adapted from: https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames

func (*BBox) ToGeoJSONStr ¶

func (b *BBox) ToGeoJSONStr() ([]byte, error)

type Image ¶

type Image struct {
	BBox   *BBox
	Width  float64
	Config *config.Config
	// contains filtered or unexported fields
}

func (*Image) DrawShapePolygons ¶

func (img *Image) DrawShapePolygons(polygons []*ShapePolygon)

DrawShapePolygons draws polygons found in the land shapefile.

func (*Image) DrawWays ¶

func (img *Image) DrawWays(ways []*RichWay)

func (*Image) Init ¶

func (img *Image) Init() error

func (*Image) PNG ¶

func (img *Image) PNG(filename string, resolution canvas.Resolution) error

func (*Image) PNGBytes ¶

func (img *Image) PNGBytes() ([]byte, error)

func (*Image) SVG ¶

func (img *Image) SVG(filename string) error

func (*Image) SVGBytes ¶

func (img *Image) SVGBytes() ([]byte, error)

func (*Image) TIFFBytes ¶

func (img *Image) TIFFBytes() ([]byte, error)

type PBF ¶

type PBF struct {
	Verbose bool
	// contains filtered or unexported fields
}

func (*PBF) BBox ¶

func (pbf *PBF) BBox() *BBox

func (*PBF) Init ¶

func (pbf *PBF) Init()

func (*PBF) Load ¶

func (pbf *PBF) Load(f io.Reader) error

func (*PBF) Relations ¶

func (pbf *PBF) Relations() []*RichWay

func (*PBF) Ways ¶

func (pbf *PBF) Ways() []*RichWay

type Point ¶

type Point struct {
	Lat float64
	Lon float64
	X   float64
	Y   float64
}

type RawPoint ¶

type RawPoint []float64

type RichWay ¶

type RichWay struct {
	Way     *osm.Way
	NodeIDs []osm.NodeID
	Points  [][]Point
}

type ShapePolygon ¶

type ShapePolygon struct {
	Points []Point
	Raw    interface{}
}

type Shapefile ¶

type Shapefile struct {
	Filename string
	// contains filtered or unexported fields
}

func (*Shapefile) Clip ¶

func (shapefile *Shapefile) Clip(bbox *BBox) ([]*ShapePolygon, error)

func (*Shapefile) GetPolygons ¶

func (shapefile *Shapefile) GetPolygons() []*ShapePolygon

GetPolygons just retruns the list of polygons that were captured from a shapefile.

func (*Shapefile) Iter ¶

func (shapefile *Shapefile) Iter(callback func(int, *shp.Polygon) error) error

func (*Shapefile) Load ¶

func (shapefile *Shapefile) Load() error

func (*Shapefile) SaveClippedShapefile ¶

func (shapefile *Shapefile) SaveClippedShapefile(filename string)

Source Files ¶

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