jaclearn.nlp.graph.dependency_visualizer.render#

This file is adapted from the spaCy project: explosion/spaCy. The spaCy project is under MIT lisence:

The MIT License (MIT)

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Classes

DependencyVisualizer

Render dependency parses as SVGs.

Functions

`visualize_list`(parsed[, options, page, minify])
`visualize_simple_svg`(text, arcs[, options])

Class DependencyVisualizer

class DependencyVisualizer[source]#

Bases: object

Render dependency parses as SVGs.

__init__(options={})[source]#: Initialise dependency renderer. options (dict): Visualiser-specific options (compact, word_spacing,

arrow_spacing, arrow_width, arrow_stroke, distance, offset_x, color, bg, font)

__new__(**kwargs)#

get_arc(x_start, y, y_curve, x_end)[source]#

Render individual arc.

Parameters:

x_start (int) – X-coordinate of arrow start point.
y (int) – Y-coordinate of arrow start and end point.
y_curve (int) – Y-corrdinate of Cubic Bézier y_curve point.
x_end (int) – X-coordinate of arrow end point.

Returns:

Definition of the arc path (‘d’ attribute).

Return type:

(unicode)

get_arrowhead(direction, x, y, end)[source]#

Render individual arrow head.

Parameters:

direction (unicode) – Arrow direction, ‘left’ or ‘right’.
x (int) – X-coordinate of arrow start point.
y (int) – Y-coordinate of arrow start and end point.
end (int) – X-coordinate of arrow end point.

Returns:

Definition of the arrow head path (‘d’ attribute).

Return type:

(unicode)

get_levels(arcs)[source]#

Calculate available arc height “levels”. Used to calculate arrow heights dynamically and without wasting space.

Parameters:: arcs (list) – Individual arcs and their start, end, direction and label.
Returns:: Arc levels sorted from lowest to highest.
Return type:: (list)

render(parsed, page=False, minify=False)[source]#

Render complete markup.

Parameters:

parsed (list) – Dependency parses to render.
page (bool) – Render parses wrapped as full HTML page.
minify (bool) – Minify HTML markup.

Returns:

Rendered SVG or HTML markup.

Return type:

(unicode)

render_arrow(label, start, end, direction, i)[source]#

Render individual arrow.

Parameters:

label (unicode) – Dependency label.
start (int) – Index of start word.
end (int) – Index of end word.
direction (unicode) – Arrow direction, ‘left’ or ‘right’.
i (int) – Unique ID, typically arrow index.

Returns:

Rendered SVG markup.

Return type:

(unicode)

render_simple_svg(text, arcs)[source]#

render_svg(render_id, words, arcs)[source]#

Render SVG.

Parameters:

render_id (int) – Unique ID, typically index of document.
words (list) – Individual words and their tags.
arcs (list) – Individual arcs and their start, end, direction and label.

Returns:

Rendered SVG markup.

Return type:

(unicode)

render_word(text, tag, i)[source]#

Render individual word.

Parameters:

text (unicode) – Word text.
tag (unicode) – Part-of-speech tag.
i (int) – Unique ID, typically word index.

Returns:

Rendered SVG markup.

Return type:

(unicode)

style = 'dep'#

Functions

visualize_list(parsed, options={}, page=False, minify=False)[source]#

visualize_simple_svg(text, arcs, options={})[source]#