Scan2CAD Python API

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Quickstart

Extract raster images from PDF files:

in_dir = "path/to/input_directory"

pdfs = s2c.list(in_dir, "pdf")
for p in pdfs:
    pp = p.open()
    pp.save(s2c.FileType.RASTER, s2c.join(in_dir, p.get_name()))

Vectorize images in a directory:

in_dir = "path/to/input_directory"
preset = s2c.Preset()

imgs = s2c.list(in_dir, "png")
for i in imgs:
    r = i.open()
    v = r.vectorize(preset)
    v.save(r.path)

Example scripts

• Converting vector PDFs

• Converting raster PDFs

• Converting raster images

• Converting Raster Image with Outline Vectorization Method

• Convert all DXFs in Directory to DWG

• Convert JPGs to Vector PDF using Solid Vectorization Method

• Add Scaling to DXFs

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List of classes

Classes used for accessing files

class s2c.FilePath(path)

Holds file’s path. Use this to load files with open() method.

Currently we support three types of files: Raster(), Vector(), PDF().

open() → File

Returns File object that opens file at path provided during initialization

get_path()

Retruns path provided during initialization (can be relative or absolute)

get_absolute_path()

Returns absolute path

get_full_name()

Returns name with extension

get_name()

Returns name without extension

get_type()

Returns file extension

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class s2c.File(path)

Base class for all file types that are supported

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class s2c.Raster(path: FilePath)

Class representing raster files

threshold(value=127)

Applies threshold raster effect on this image

segment(colors=6, definition=3)

Applies segment raster effect on this image

rotate90(clockwise=True)

Rotates raster image by 90 degrees in requested direction

remove_speckles_and_holes(speckle_size, hole_size)

Applies raster effect: remove speckles and holes

smooth()

Applies raster effect: smooth

auto_deskew()

Applies raster effect: auto deskew

thicken()

Applies raster effect: thicken

thin(level)

Applies raster effect: thin

save(path=None)

Saves this raster image under the given path

vectorize(preset) → Vector

Vectorizes this image and returns Vector() object

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class s2c.Vector(path)

scale(length_in_pixels, length_in_unit, unit: Unit)

Sets vector scale in requested unit

save(path=None, type=1)

Saves this vector image under the given path

exportToPdf(path)

Saves this vector image to PDF file

rasterize(path)

Saves this vector to as raster file

ocr(preset) → Vector

Performs OCR on this vector and returns Vector object with recognized text

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class s2c.PDF(path)

Class representing PDF files

Loads PDF file using provided FilePath instance

save(type, path)

Saves PDF file in one of supported formats, see FileType() class

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Utilities

class s2c.list(path, extension='')

Lists files in the directory.

Parameters:

extension – can be a string or a list of strings.

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class s2c.join(path, *paths)

Joins paths together using platform-specific path separators

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class s2c.PDFsInDirToDxfs(in_dir, out_dir)

Extracts vector data in DXF format from all PDF files in the directory

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class s2c.FileType

Enumeration with all types supported by FilePath and File (Raster, Vector, PDF)

RASTER = 0

VECTOR = 1

PDF = 2

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class s2c.Preset

Structure used to define settings used in vectorization

In order to change advanced settings, modify these members:

• self.technical,

• self.ocr,

• self.outline,

• self.solid.

class Method

Technical = 1

Outline = 2

Solid = 3

class Option

Vectorize = 1

OCR = 2

VectorizeOCR = 3

class Predefined

Architectural = 1

Electrical = 2

Mechanical = 3

CNCProfile = 4

SitePlan = 5

ContourMap = 6

Sketch = 7

Outline = 8

class Languages

English = 1

German = 2

French = 3

Italian = 4

Japanese = 5

JapaneseEnglish = 6

Polish = 7

Spanish = 8

class Technical

Structure holding additional settings for Technical vectorization

polyline_identification = False

line_width = 14

line_deviation_factor = 2.2

arc_identification = True

arc_min_radius = 6

bezier_identification = False

circle_identification = True

circle_radius = 6

arrow_identification = True

arrow_max_head_length = 64

dash_line_identification = True

dash_line_max_length = 45

dash_line_max_gap = 45

hatch_identification = True

hatch_angle = 45

hatch_angle_tolerance = 12

orthogonal_snap = True

orthogonal_snap_tolerance = 8

snap_to_30 = False

snap_to_45 = False

snap_to_60 = False

snap_to_120 = False

snap_to_135 = False

snap_to_150 = False

snap_tolerance = 8

corner_snap = 8

corner_snap_tolerance = 6

pass_thro_snap = 3

gap_jump_distance = 4

loose_ends_length = 7

connect_thro_vectors = True

class OCR

Structure holding additional settings for OCR

char_size_max = 75

char_size_min = 9

recognition = 60

exclude_intersecting = True

vertical = False

angular = False

document_is_only_text = False

class Outline

Structure holding additional settings for Outline vectorization

class Types

Bezier = 1

PolyBezier = 2

Polyline = 3

LinesArcs = 4

class Bias

Angular = 1

Curves = 2

definition = 20

bias_orthogonal = False

bias = 2

type = 4

class Solid

Structure holding additional settings for Solid vectorization

class Types

Polygon = 1

PolyBezier = 2

class Bias

Angular = 1

Curves = 2

definition = 5

identify_circles = True

bias_orthogonal = False

bias = 2

type = 2

method = 1

Determines vectorization mode.

option = 1

Determines option type (relevant only for Technical vectorization).

language = 1

Determines OCR language (relevant only when OCR is enabled).

color = False

If enabled output vector will contain color. Ingored for Method.Solid().

load(pre: Predefined)

Preloads chosen preset