draw

Documentation

Index

• Constants
• func LineString(img *image.RGBA, min maths.Pt, line tegola.LineString, c color.RGBA)
• func Minmax(s []float64, mix, miy, mx, my int) (minx, miny, maxx, maxy int)
• func NewImage(min, max maths.Pt) *image.RGBA
• func Orgin(img *image.RGBA, min maths.Pt, c *color.RGBA)
• func Polygon(img *image.RGBA, min maths.Pt, polygon tegola.Polygon, c color.RGBA)
• func Region(img *image.RGBA, minx, miny int, clipr *region.Region, c color.RGBA)
• func ScaleToPoint(minx, miny int, x, y float64) image.Point
• func Segment(img *image.RGBA, minx, miny int, s []float64, c color.RGBA)

Constants

const PixelWidth = 10

Functions

func LineString

func LineString(img *image.RGBA, min maths.Pt, line tegola.LineString, c color.RGBA)

func Minmax

func Minmax(s []float64, mix, miy, mx, my int) (minx, miny, maxx, maxy int)

Drawing routings.

func NewImage

func NewImage(min, max maths.Pt) *image.RGBA

func Orgin

func Orgin(img *image.RGBA, min maths.Pt, c *color.RGBA)

func Polygon

func Polygon(img *image.RGBA, min maths.Pt, polygon tegola.Polygon, c color.RGBA)

func Region

func Region(img *image.RGBA, minx, miny int, clipr *region.Region, c color.RGBA)

func ScaleToPoint

func ScaleToPoint(minx, miny int, x, y float64) image.Point

func Segment

func Segment(img *image.RGBA, minx, miny int, s []float64, c color.RGBA)