limit

package

v0.6.0-alpha.2 Latest Latest Go to latest Published: Apr 15, 2018 License: Apache-2.0 Imports: 9 Imported by: 0

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Repository

github.com/go-spatial/imposm3

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Documentation ¶

Overview ¶

Package limit provides functions to clip geometries at polygon boundaries.

Index ¶

type Limiter
- func NewFromGeoJSON(source string, buffer float64, targetSRID int) (*Limiter, error)
- func (l *Limiter) Clip(geom *geos.Geom) ([]*geos.Geom, error)
- func (c *Limiter) IntersectsBuffer(g *geos.Geos, x, y float64) bool

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Limiter ¶

type Limiter struct {
	// contains filtered or unexported fields
}

func NewFromGeoJSON ¶

func NewFromGeoJSON(source string, buffer float64, targetSRID int) (*Limiter, error)

func (*Limiter) Clip ¶

func (l *Limiter) Clip(geom *geos.Geom) ([]*geos.Geom, error)

Clip returns geom (in targetSRID) clipped to the LimitTo geometry. Returns nil if geom is outside of the LimitTo geometry. Returns only similar geometry types (e.g. clipped Polygon will return one or more Polygons, but no LineString or Point, etc.)

func (*Limiter) IntersectsBuffer ¶

func (c *Limiter) IntersectsBuffer(g *geos.Geos, x, y float64) bool

IntersectsBuffer returns true if the point (EPSG:4326) intersects the buffered LimitTo geometry.

Source Files ¶

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