graph

Documentation

Index

• Variables
• func CopyStride(dst_buf []uint8, dst_stride int, src_buf []uint8, src_stride int, ...)
• func DrawCircle(dst draw.Image, x, y, r int, color color.Color)
• func DrawLine(dst draw.Image, x1, y1, x2, y2 int, color color.Color)
• func DrawRectangle(dst draw.Image, x1, y1, x2, y2 int, color color.Color)
• func DrawTriangle(dst draw.Image, triangle Triangle2D, color color.Color)
• func FillCircle(dst draw.Image, x, y, r int, color color.Color)
• func FillRect(dst draw.Image, r image.Rectangle, c color.Color)
• func FillRectangle(dst draw.Image, x1, y1, x2, y2 int, color color.Color)
• func FillTriangle(dst draw.Image, triangle Triangle2D, color color.Color)
• type Point2D
• type Triangle2D
  • func NewTriangle(x1, y1, x2, y2, x3, y3 int) Triangle2D
  • func (self *Triangle2D) GetVert(i int) Point2D
  • func (self *Triangle2D) SetVert(i int, x, y int)
  • func (self *Triangle2D) SortByY()

Variables

var (
	COLOR_WHITE = color.RGBA{255, 255, 255, 255}
	COLOR_BLACK = color.RGBA{0, 0, 0, 255}

	COLOR_RED     = color.RGBA{255, 0, 0, 255}
	COLOR_LIME    = color.RGBA{0, 255, 0, 255}
	COLOR_BLUE    = color.RGBA{0, 0, 255, 255}
	COLOR_YELLOW  = color.RGBA{255, 255, 0, 255}
	COLOR_CYAN    = color.RGBA{0, 255, 255, 255}
	COLOR_MAGENTA = color.RGBA{255, 0, 255, 255}

	COLOR_SILVER = color.RGBA{192, 192, 192, 255}
	COLOR_GRAY   = color.RGBA{128, 128, 128, 255}
	COLOR_MAROON = color.RGBA{128, 0, 0, 255}
	COLOR_OLIVE  = color.RGBA{128, 128, 0, 255}

	COLOR_GREEN  = color.RGBA{0, 128, 0, 255}
	COLOR_PURPLE = color.RGBA{128, 0, 128, 255}
	COLOR_TEAL   = color.RGBA{0, 128, 128, 255}
	COLOR_NAVY   = color.RGBA{0, 0, 128, 255}

	COLOR_DARKBLUE   = color.RGBA{0, 0, 139, 255}
	COLOR_DARKGREEN  = color.RGBA{1, 50, 32, 255}
	COLOR_DARKYELLOW = color.RGBA{0x9B, 0x87, 0x0c, 255}
	COLOR_DARKGRAY   = color.RGBA{169, 169, 169, 255}
	COLOR_DIMGRAY    = color.RGBA{105, 105, 105, 255}
)

Functions

func CopyStride

func CopyStride(dst_buf []uint8, dst_stride int, src_buf []uint8, src_stride int, nBytePerLine int, nLines int)

func DrawCircle

func DrawCircle(dst draw.Image, x, y, r int, color color.Color)

func DrawLine

func DrawLine(dst draw.Image, x1, y1, x2, y2 int, color color.Color)

func DrawRectangle

func DrawRectangle(dst draw.Image, x1, y1, x2, y2 int, color color.Color)

func DrawTriangle

func DrawTriangle(dst draw.Image, triangle Triangle2D, color color.Color)

func FillCircle

func FillCircle(dst draw.Image, x, y, r int, color color.Color)

func FillRect

func FillRect(dst draw.Image, r image.Rectangle, c color.Color)

func FillRectangle

func FillRectangle(dst draw.Image, x1, y1, x2, y2 int, color color.Color)

* Draws a filled rectangle whose top left corner is (x1, y1)

• and bottom right corner is (x2,y2), using the current color.

func FillTriangle

func FillTriangle(dst draw.Image, triangle Triangle2D, color color.Color)

Types

type Point2D

type Point2D struct {
	// contains filtered or unexported fields
}

type Triangle2D

type Triangle2D struct {
	// contains filtered or unexported fields
}

func NewTriangle

func NewTriangle(x1, y1, x2, y2, x3, y3 int) Triangle2D

func (*Triangle2D) GetVert

func (self *Triangle2D) GetVert(i int) Point2D

func (*Triangle2D) SetVert

func (self *Triangle2D) SetVert(i int, x, y int)

func (*Triangle2D) SortByY

func (self *Triangle2D) SortByY()