package ocamlgraph
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Parses xdot drawing operations
See dot documentation to understand the drawing operations
Types
type operation =
| Filled_ellipse of pos * width * height
| Unfilled_ellipse of pos * width * height
| Filled_polygon of pos array
| Unfilled_polygon of pos array
| Polyline of pos array
| Bspline of pos array
| Filled_bspline of pos array
| Text of pos * align * width * string
| Fill_color of string
| Pen_color of string
| Font of float * string
| Style of style_attr list
Drawing operations
val string_scale_size :
fontMeasure:(fontName:string -> fontSize:int -> string -> int * int) ->
string ->
float ->
string ->
width * height
string_scale_size ~fontMeasure font font_size text
. Interpolates the font metrics we have to use to draw the given text
with the given font but preserving the bounding box of the text
even with a proportional font. For a fixed width font the result is font_size*font_size
.
Parsing and drawing state
Parses an xdot drawing attribute
val parse : string -> operation list
Some drawing operations modify the following drawing state (pen_color, font and style).
type draw_state = private {
mutable fill_color : string;
mutable pen_color : string;
mutable font : float * string;
mutable style : style_attr list;
}
val draw_with : (draw_state -> operation -> unit) -> operation list -> unit
Iterates on the drawing operations and updates the implicit drawing state
Miscellaneous
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