nim-libgd
Nim Wrapper for LibGD 2.x
Work in progress...
Example of Usage
import libgd
proc main() =
withGd imageCreate(300, 300) as img:
let white = img.backgroundColor(0xffffff)
let green = img.setColor(0, 0, 255)
img.setThickness(4)
img.drawRectangle(
startCorner=[10, 10],
endCorner=[300 - 10, 300 - 10],
color=green)
let png_out = open("test.png", fmWrite)
img.writePng(png_out)
png_out.close()
main()Image from Examples
How to install nim-libgd with Nimble?
You need to have installed the gd library in your system.
If you use Arch Linux, the library can be installed with: sudo pacman -S gd.
Run the Nimble install command: $ nimble install https://github.com/mrhdias/nim-libgd
Functions
Work in progress...
Drawing Functions
proc setPixel(
img: gdImagePtr,
point: array[2,int],
color: int = -1
)
proc drawLine(
img: gdImagePtr,
start_point: array[2,int],
end_point: array[2,int],
color: int = -1,
dashed: bool = false
)
proc drawRectangle(
img: gdImagePtr,
start_corner: array[2,int],
end_corner: array[2,int],
color: int,
fill: bool = false
)
proc drawArc(
img: gdImagePtr,
center: array[2,int],
axis: array[2,int],
angles: array[2,int],
color: int,
fill: bool = false,
style: int = 0
)
proc drawEllipse(
img: gdImagePtr,
center: array[2,int],
axis: array[2,int],
color: int,
fill: bool = false
)
proc drawCircle(
img: gdImagePtr,
center: array[2,int],
radius: int,
color: int = -1,
fill: bool = false
)
proc drawPolygon(
img: gdImagePtr,
points: openArray[array[0..1, int]],
color: int,
fill: bool = false,
open: bool = false
)
proc drawRegularPolygon(
img: gdImagePtr,
center: array[2,int],
sides: int,
radius: int,
start_angle: int = 0,
color: int,
fill: bool = false,
open: bool = false
)Image Filters
proc filterContrast(src: gdImagePtr, contrast: float): bool
proc filterBrightness(src: gdImagePtr, brightness: int): bool
proc filterGrayScale(src: gdImagePtr): bool
proc filterNegate(src: gdImagePtr): bool
proc filterEmboss(src: gdImagePtr): bool
proc filterGaussianBlur(src: gdImagePtr): bool
proc filterSmooth(src: gdImagePtr, weight: float): bool
proc filterEdgeDetectQuick(src: gdImagePtr): bool
proc filterSelectiveBlur(src: gdImagePtr): bool
proc filterMeanRemoval(src: gdImagePtr): bool
