Simple PDF drawing library#

The package pdfdraw is a simple, low level, drawing library. It is mainly created because I cannot remember the PDF operators.

Use

func New() *Object

or

func NewStandalone() *Object

to get a PDF draw object:

type Object struct {
}

There are a lot of methods defined on the pdfdraw object, such as

func (pd *Object) Fill() *Object

which return the object itself. So you can call these methods by chaining:

myobj := pdfdraw.New()
myobj.ColorNonstroking(col).Moveto(x0, y0).Lineto(x1, y1).Lineto(x2, y1).Lineto(x3, y0).Close().Fill()

or by calling these methods from the object:

myobj := pdfdraw.New()
myobj.ColorNonstroking(col)
myobj.Moveto(x0, y0)
myobj.Lineto(x1, y1)
myobj.Lineto(x2, y1)
myobj.Lineto(x3, y0)
myobj.Close()
myobj.Fill()

After you have chained the methods together, you can call the .String() to get the textual representation of the drawing commands.

Standalone or not to stand alone?#

The NewStandalone() function creates a q...Q encapsulated PDF string, which is normally used to stop leaking settings for the next drawing commands.

Methods#