Linea di comando degli strumenti QCAD

Traduzione automatica

Ogni installazione di QCAD Professional include alcuni strumenti a riga di comando. Questi strumenti a riga di comando possono essere utilizzati per convertire in batch i file di disegno CAD, estrarre informazioni, generare dati cartografici o altrimenti elaborare i file CAD in modo automatico.

Contenuti

 

Note sulla Piattaforma

Windows

Con Windows, queste utilità sono incluse come file batch (.bat) nell’installazione della directory di QCAD.

macOS

Con macOS, troverai le utilità negli script shell nell’applicazione in bundle qui sotto:

QCAD-Pro.app/Contents/Resources

Linux

Anche con i sistemi Linux, le utilità sono incluse come script shell nell’installazione della directory di QCAD.

dwginfo

(anche dxfinfo)

dwginfo elenca le informazioni da un file DXF/DWG. Attualmente, può elencare tutti i livelli, i blocchi o il numero totale di entità nel file.

Usage: ./dwginfo [OPTION]... <drawing file>

Exracts various information from a DXF/DWG file.

  -h, -help               Display this help
  -b, -blocklist          List all block names
  -l, -layerlist          List all layer names
  -e, -entities           Output number of entities in file

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.

dwg2csv

(anche dxf2csv)

dwg2csv estrae le proprietà dalle entità DXF/DWG in un foglio di calcolo CSV.

Usage: ./dwg2csv [OPTIONS]... <drawing file>

Extracts information from a drawing file (DWG, DXF, ...) to CSV.

  -d, -decimals           Number of decimal places for float value
  -f, -force              Overwrite existing output file
  -l, -list               List available entity types and their properties
  -o FILE, -outfile=FILE  Set output file to FILE
                          default is same path and base name as input file
  -p PROPERTY             Extract given PROPERTY (e.g. 'Start Point:X')
                          Multiple properties may be extracted
                          Defaults to all properties of the given object type(s)
  -t OBJECT_TYPE          Object or entity type (e.g. 'Line', 'Layer', ...)
                          Defaults to all object type(s)

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.

dwg2bmp

(anche dwg2png, dwg2jpeg, dwg2tiff, dxf2png, dxf2jpeg, dxf2tiff, ...)

dwg2bmp converte un file DXF or DWG in un file bitmap. I formati output supportati sono: BMP, ICO, JPEG, PNG, PPM, TIFF, XBM, XPM.

Il numero massimo di byte per i dati immagine raw è di 2'147'483'647 byte. Con quattro byte per pixel (ARGB), la dimensione massima per il file di output è di 536'870'911 pixels, o ad esempio 23'170x23'170 pixel.

Usage: ./dwg2bmp [OPTIONS]... <drawing file>

Converts a drawing file (DWG, DXF, ...) to a bitmap file (BMP, PNG, ...).

  -a, -antialiasing       Enable antialiasing
  -b, -background=C       Set the background color as color name
                          e.g. 'white' or '#ccdd00'.
      -block=BLOCK_NAME   Name of block (or layout) to output 
                          (defaults to *Model_Space)
  -c, -color-correction   Enable color correction to prevent white on white
                          or black on black painting
  -d, -recompute-dim      Recompute dimension blocks if empty
                          (dimensions rendered with best compatibility)
  -f, -force              Overwrite existing output file
      -flat               Flatten to 2D (Z==0)
  -fs, -font-substitution FONT1 FONT2
                          Substitute FONT1 with FONT2
  -h, -help               Display this help
      -no-weight-margin   Don't add additional margin to compensate for
                          lineweight
  -k, -grayscale          Grayscale
      -layer=LAYER_NAMES  Comma-separated list of layer(s) to export
                          List may include regular expressions
  -l, -list               List supported formats
      -ltscale=FACTOR     Set linetype scale to FACTOR
  -m, -margin=M           Set auto zoom margin to M (in pixels)
  -n, -monochrome         Monochrome (black / white)
  -o, -outfile=FILE       Set output file to FILE
                          Default is same path and base name as input file
  -q, -quality=Q          Set the image quality / compression
                          (0=best compression..100=best quality)
  -r, -resolution=R       Set rendering resolution to R
                          (in pixels/drawing unit)
                          This overrides the width/height parameters.
  -u, -unit=[in|m|mm]     Assume input data to be in given unit
                          Default is the drawing unit
                          Mainly useful for drawings with unit 'None'
  -w, -window=X,Y,W,H     Zoom to given window
  -x, -width=W            Set bitmap width to W (in pixels)
  -y, -height=H           Set bitmap height to H (in pixels)
                          The maximum size for width*height is 536870911 pixels
      -zoom-all           Auto zoom to maximum extends of all layers
  -p, -origin             Draw zero point (origin)

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.

dwg2svg

(anche dxf2svg)

dwg2svg converte un file DXF or DWG  in un file SVG (Grafica Vettoriale Scalabile). Il file di output può essere ottimizzato per sembrare esattamente come il file di disegno (default) o per trasferire più geometria possibile (switch -g).

Usage: ./dwg2svg [OPTIONS]... <drawing file>

Converts a drawing file (DWG, DXF, ...) file to an SVG file.

  -a, -adjust             Adjust page size to include thickest line weight
  -b, -bottom=MB          Set page margin at bottom to MB
      -block=BLOCK_NAME   Name of block (or layout) to output 
                          (defaults to *Model_Space)
  -c, -circle=CR          Export points as circles with radius CR
  -d, -recompute-dim      Recompute dimension blocks if empty
                          (dimensions rendered with best compatibility)
      -decimals=D         Decimal places for float values (defaults to 4)
  -e, -equal-margins=M    Set all page margins to M
                          -l, -r, -t and -b are ignored
      -embed-images       Embed images (bitmaps)
  -f, -force              Overwrite existing output file
      -flat               Flatten to 2D (Z==0)
  -fs, -font-substitution FONT1 FONT2
                          Substitute FONT1 with FONT2
  -g, -preserve-geometry  Preserve as much of the original geometry as possible
                          Default is identical rendering
  -h, -help               Display this help
  -i, -inkscape           Generate additional information for Inkscape
  -l, -left=ML            Set page margin at left to ML
      -layer=LAYER_NAMES  Comma-separated list of layer(s) to export
                          List may include regular expressions
      -layer-attribute    Export layer attributes into QCAD SVG namespace
      -ltscale=FACTOR     Set linetype scale to FACTOR
  -n, -no-comments        Suppress comments for DXF entities
  -o, -outfile=FILE       Set output file to FILE
                          Default is same path and base name as input file
  -p, -open               Open the converted file after conversion
  -u, -unit=[in|m|mm]     Assume input data to be in given unit
                          Default is the drawing unit
                          Mainly useful for drawings with unit 'None'
  -r, -right=MR           Set page margin at right to MR
  -s, -scale=SF           Set scale factor to SF
  -t, -top=MT             Set page margin at top to MT
  -w, -min-lineweight=LW  Set minimum line weight to LW drawing units
                          Defaults to 0.001 since 0 in SVG means invisible
      -no-text-transforms Don't use transformations for text entities
  -x, -cross=CS           Export points as crosses with size CS

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.

Points:    If neither -c nor -x is given, points are not exported.
SVG Units: SVG only supports the following CAD units: mm, cm, in.
           - Unsupported Metric drawing units are converted to Millimeters.
           - Unsupported Imperial drawing units are converted to Inches.
           Use -s to scale and avoid large values.
Margins:   Margin values have to be specified in the (converted) SVG unit.

Examples:
Adjust page, set all margins to 1.5, export points as circles with radius 0.5:
./dwg2svg -a -e 1.5 -c 0.5 file.dwg

Set scale factor to '1:200':
./dwg2svg -s 1:200 file.dwg

dwg2pdf

(anche dxf2pdf)

dwg2pdf converte un file DXF or DWG in un file PDF.

Usage: ./dwg2pdf [OPTIONS]... <drawing file>

Converts a drawing file (DWG, DXF, ...) to a PDF file.

  -a, -auto-fit           Auto fit and center drawing to paper
      -auto-orientation   Auto paper orientation (landscape or portrait)
                          based on document bounding box
      -block=BLOCK_NAMES  Comma-separated list of block(s) or 
                          layout(s) to export
                          List may include regular expressions
                          List defines order of export unless
                          -block-sort is used
                          A block may be exported more than once
                          unless -block-unique is used
      -block-sort         Sort blocks in natural order
                          Layouts are sorted by tab order
                          and exported before blocks
                          Blocks are ordered alphanumerically
      -block-unique       Export every matching block only once
  -c, -center             Auto center drawing on paper
  -d, -recompute-dim      Recompute dimension blocks if empty
                          (dimensions rendered with best compatibility)
  -e, -papers             List all supported paper size names
      -point-size=SIZE    Set size of points in mm
  -f, -force              Overwrite existing output file
      -flat               Flatten to 2D (Z==0)
  -fs, -font-substitution FONT1 FONT2
                          Substitute FONT1 with FONT2
  -h, -help               Display this help
  -k, -grayscale          Grayscale
  -l, -landscape          Landscape (default is portrait)
      -layer=LAYER_NAMES  Comma-separated list of layer(s) to export
                          List may include regular expressions
      -list-printers      List all available printers
      -ltscale=FACTOR     Set linetype scale to FACTOR
  -m, -margin=M           Set paper margins to M
  -n, -monochrome         Monochrome (black / white)
  -o, -outfile=FILE       Set output file to FILE
                          default is same path and base name as input file
      -offset=X,Y         Set offset to X,Y in drawing units
                          ('3,4', '7/2,1/4', '0.5,-1.5', ...)
  -p, -paper=WxH          Set paper size to W x H in mm or to named paper size
                          ('A4', 'Letter', ...)
      -pdf-version=VER    Specify PDF version to
                          '1.4' (default) for PDF 1.4
                          '1.6' for PDF 1.6
                          'A' or 'A-1B' or 'A1B' for PDF/A-1B
      -printer=PRINTER    Print directly to PRINTER or default printer
                          if no printer given
      -rows=ROWS          Set number of paper rows to ROWS
  -s, -scale=SCALE        Set drawing scale to given scale
                          ('1', '2', '0.5', '1:1', '1:5', '5:1', ...)
      -cols=COLS          Set number of paper columns to COLS
  -u, -unit=[in|m|mm]     Assume input data to be in given unit
                          Default is the drawing unit
                          Mainly useful for drawings with unit 'None'
  -w, -min-lineweight=LW  Set minimum line weight on paper to LW Millimeter
      -max-lineweight=LW  Set maximum line weight on paper to LW Millimeter

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.

dwgmapconvert

(anche dxfmapconvert)

dwgmapconvert converte un disegno da un sistema di coordinate di mappa (CRS) ad un altro, per esempio da un CRS locale a Web Mercator (EPSG:3857). Si prega di fare riferimento anche al nostro tutorial sulle piastrelle della mappa.

Usage: ./dwgmapconvert [OPTIONS]... <drawing file>

Converts a drawing file (DWG, DXF, ...) from one CRS to another.
Typically used to convert the coordinate system before running
dwg2maptiles.

      -block=BLOCK_NAME   Name of block (or layout) to output 
                          (defaults to *Model_Space)
      -crs-in=CRS         Data is in given coordinate reference system (CRS *)
      -crs-out=CRS        Transform to given coordinate reference system (CRS *)
                          * CRS can be either of:
                          - An object code such as 'EPSG:2056'
                          - An object name such as 'LV95'
                          - A WKT string ('PROJCS[...]')
                          - A proj-string ('+proj=...')
      -crs-list           List supported coordinate reference systems (CRS)
  -d, -recompute-dim      Recompute dimension blocks if empty
                          (dimensions rendered with best compatibility)
  -f, -force              Overwrite existing output file
  -fs, -font-substitution FONT1 FONT2
                          Substitute FONT1 with FONT2
  -h, -help               Display this help
      -layer=LAYER_NAMES  Comma-separated list of layer(s) to export
                          List may include regular expressions
      -ltscale=FACTOR     Set linetype scale to FACTOR
      -retain-texts       Retain (don't segmentate) text labels
                          Only the text position and height is transformed
      -segment-length=L   Segmentate all entities with segment length L
      -simplify           Simplify after segmentation
  -o, -outfile=FILE       Set output file to FILE
  -r, -release=RELEASE    Set output DXF/DWG release to RELEASE.
                          Defaults to R27.
  -u, -unit=[in|m|mm]     Assume input data to be in given unit
                          Default is the drawing unit
                          Mainly useful for drawings with unit 'None'

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.

dwg2maptiles

(anche dxf2maptiles)

dwg2maptiles crea automaticamente set di riquadri da usare in mappe online . La directory/struttura file generata segue lo standard di (z/x/y.png). Il numero dei livelli di zoom (z) è adattabile. I suddetti riquadri della mappa possono essere usati per creare mappe interattive per il web, usando leaflet.js ad esempio. Clicca qui per visualizzare esempi di mappe create con dwg2maptiles e leaflet.js.

Usage: ./dwg2maptiles [OPTIONS]... <drawing file>

Converts a drawing file (DWG, DXF, ...) to a set of 
bitmap files (PNG, JPEG, ...) for use with online maps, e.g. leaflet.js.

  -a, -antialiasing       Enable antialiasing
      -skip-empty         Skip empty tiles
  -b, -background=C       Set the background color as color name
                          e.g. 'white', '#ccdd00' or 'transparent'
      -block=BLOCK_NAME   Name of block (or layout) to output 
                          (defaults to *Model_Space)
  -c, -color-correction   Enable color correction to prevent white on white
                          or black on black painting
      -center=X,Y         Set center of first tile to X,Y in drawing units
  -d, -recompute-dim      Recompute dimension blocks if empty
                          (dimensions rendered with best compatibility)
      -tile-markers       Add tile markers (for testing, debugging)
  -e, -tile=ROW,COL       Generate only tile at ROW,COL
  -f, -force              Overwrite existing output file
      -flat               Flatten to 2D (Z==0)
  -fs, -font-substitution FONT1 FONT2
                          Substitute FONT1 with FONT2
  -h, -help               Display this help
  -k, -grayscale          Grayscale
      -layer=LAYER_NAMES  Comma-separated list of layer(s) to export
                          List may include regular expressions
  -l, -list               List supported formats
      -ltscale=FACTOR     Set linetype scale to FACTOR
  -m, -margin=M           Set auto zoom margin to M (in percent)
                          Default is 10%
      -tms                Y=0 is at the bottom (typically used for TMS,
                          default is Y=0 at the top for WMS)
  -n, -monochrome         Monochrome (black / white)
  -o, -outdir=DIR         Set output dir to DIR
                          default is same path and base name as input file
      -hq-postfix=P       Generate high-res tiles (512px) in addition to 
                          256px tiles and use the given postfix for the 
                          high-res output files, e.g. '@2x' for '[email protected]'
  -q, -quality=Q          Set the image quality / compression
                          (0=best compression..100=best quality)
  -r, -resolution=R       Set rendering resolution of first tile to R
                          (in pixels/drawing unit)
                          This overrides the width/height parameters
      -screen-lt          Use screen based linetypes (thin, visible patterns)
  -s, -subsection=N,M     Generate subsection N of M
                          Examples:
                          1,4: generate first of four subsections
                          4,4: generate fourth of four subsections
                          7,8: generate seventh of eight subsections
  -t, -format             File format (png, jpeg, gif)
  -u, -unit=[in|m|mm]     Assume input data to be in given unit
                          Default is the drawing unit
                          Mainly useful for drawings with unit 'None'
  -x, -width=W            Set bitmap width to W (in pixels)
  -y, -height=H           Set bitmap height to H (in pixels)
  -y, -height=H           Set bitmap height to H (in pixels)
      -x-offset=X         X offset for fine tuning
      -y-offset=Y         Y offset for fine tuning
      -opacity=O          Make all tiles (semi-)transparent using the given opacity
                          0.0: transparent
                          1.0: opaque
  -p, -origin             Draw zero point (origin)
      -web-mercator       Input is in Web Mercator coordinates, 
                          from example from dwgmapconvert
  -z, -zoomlevels         Number or range of zoom levels, defaults to 0-6
                          Examples:
                              5: zoom levels 0,1,2,3,4,5
                            3-5: zoom levels 3,4,5
                          1,3,5: zoom levels 1,3,5
                            3-3: zoom level 3 only

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.

dwg2dwg

(anche dwg2dxf, dxf2dwg)

dwg2dwg legge e scrive file DXF or DWG ed eroga file DXF o DWG. Diverse impostazioni come la versione del formato del file possono essere cambiate.

Usage: ./dwg2dwg [OPTIONS]... <drawing file>

Converts a drawing file (DWG, DXF, ...) file from one version to another.

  -f, -force              Overwrite existing output file
  -h, -help               Display this help
  -l, -list               List supported releases
  -n, -setdimfont=FONT    Set the dimension font to the given font
  -o, -outfile=FILE       Set output file to FILE
                          Default is same path and base name as input file
  -r, -release=RELEASE    Set output DXF/DWG release to RELEASE
  -s, -set=VARIABLE:VALUE Set the given known variable to the given value
                          For example -s DIMASZ:2.5
                          DXF header variables that can be changed are
                          (among others):
                          DIMADEC:  Angular dimension label precision (0-8)
                          DIMASZ:   Dimension arrow size
                          DIMAUNIT: Angular dimension label format
                                    0: decimal degrees
                                    1: deg/min/sec
                                    2: gradians
                                    3: radians
                                    4: surveyors
                          DIMAZIN:  Trailing zeroes for angular dimensions
                                    (0: on, 2: off)
                          DIMDEC:   Set linear dimension label precision (0-8)
                          DIMDLI:   Dimension line increment
                          DIMEXE:   Extension line extension
                          DIMEXO:   Extension line offset
                          DIMGAP:   Dimension line gap
                          DIMLUNIT: Set linear dimension label format
                                    1: scientific
                                    2: decimal
                                    3: engineering
                                    4: architectural
                                    5: fractional
                          DIMTSZ:   Dimension arch tick size (0 for arrow)
                          DIMTXT:   Dimension text height
                          DIMZIN:   Trailing zeroes (0: on, 8: off)
  -t, -substitute=FONT1:FONT2
                          Substitute FONT1 with FONT2 in all texts

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.

dwghatch

(anche dxfhatch)

dwghatch crea un’entità di  tratteggio di riempimento solido usando percorsi racchiusi all’interno del file di disegno dato come contorno. I percorsi delimitati contenuti in altri percorsi delimitati sono considerati delle isole.

Usage: ./dwghatch [OPTIONS]... <drawing file>

Fill all fillable (closed) boundaries of the given drawing
file (DXF, DWG) with a solid fill hatch.

  -f, -force              Overwrite existing output file
  -h, -help               Display this help
  -o FILE, -output=FILE   Set CAD output file to FILE

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.

dwghatcharea

(anche dxfhatcharea)

dwghatcharea produce l'area di tutti i tratteggi o riempimenti solidi del file dato per layer.

Usage: ./dwghatcharea [OPTIONS]... <drawing file>

List the area of all hatches (or solid fills) of the given drawing
file (DXF, DWG).
If hatch loops are intersecting, the result is not correct / not defined.

      -block=BLOCK_NAME   Name of block (or layout) to process 
                          (defaults to *Model_Space)
  -f, -factor             Linear factor applied to all lengths
      -flat               Flatten to 2D (Z==0)
  -h, -help               Display this help
      -layer=LAYER_NAMES  Comma-separated list of layer(s) to process
                          List may include regular expressions
                          Defaults to all visible layers
  -s, -segment=LENGTH     Segment length for curve segmentation.
                          Shorter means slower but more precise.
                          Defaults to 0.1 drawing units.

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.

dwgexplode

(anche dxfexplode)

dwgexplode esplode tutte le entità complesse nel disegno in entità più semplici (punti, linee, archi e cerchi).

Usage: ./dwgexplode [OPTIONS]... <drawing file>

Explodes blocks, ellipses, texts in the given drawing file (DXF, DWG).

  -f, -force              Overwrite existing output file
  -t, -types=TYPES        Comma separated list of entity types that
                          should NOT be exploded any further
                          Default is to explode everything into points,
                          lines, arcs and circles
  -h, -help               Display this help
  -o, -output=FILE        Set CAD output file to FILE

Examples:
./dwgexplode -t Text,Polyline -o out.dxf in.dxf
    Explodes everything except texts and polylines. 
    Dimensions for example are exploded into lines, polylines 
    (for the arrows) and a text label.

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.

merge

merge è un potente strumento per mettere insieme multipli file di disegno (DXF, DWG,...). Ogni disegno può essere individualmente posizionato, rotato, scalato e capovolto sia orizzontalmente che verticalmente. Uno dei parametri usati quando si richiede “merge” è un file XML che definisce quali disegni sono inseriti e dove, a quale angolo ecc.

Il tag "insert" (inserire) potrebbe essere ripetuto per inserire lo stesso disegno diverse volte con differenti parametri..

Usage: ./merge [OPTIONS]... <XML config file>

Merges multiple drawing files (DWG, DXF, ...) into one.

  -f, -force              Overwrite existing output file
  -h, -help               Display this help
  -t TYPE, -type=TYPE     Set file type to TYPE 
                          (e.g. R12...R27 or 2000...2013)
  -o FILE, -outfile=FILE  Set output file to FILE
                          default is same path and base name as input file

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.

XML format:
<?xml version="1.0" encoding="UTF-8"?>
<merge xmlns="http://qcad.org/merge/elements/1.0/" unit="Millimeter">
    <item src="/file1.dxf">
        <insert x="10" y="0" angle="30" flipx="false" flipy="false" />
    </item>
</merge>

bbox

bbox emette la casella di delimitazione (estensione minima e massima e dimensione) di un disegno nel formato:

Min: x/y
Max: x/y
Size: larghezza/altezza

Usage: ./bbox <drawing file>

Prints the minimum, maximum and size of the given drawing.

  -h, -help               Display this help

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.

dwgnest (QCAD/CAM)

(anche dxfnest)

dwgnest è la versione a riga di comando dello strumento di nesting di QCAD/CAM. dwgnest annida tutte le parti su un dato livello / insieme di livelli nei fogli su un diverso livello / insieme di livelli.

Usage: ./dwgnest [OPTIONS]... <drawing file>

Nests parts on a layer to sheets on another layer in the given drawing file (DXF, DWG).

  -a, -alignment=ALIGN    Alignment [0-7]: (first priority, second priority)
                          0: Left bottom
                          1: Left top
                          2: Right bottom
                          3: Right top
                          4: Bottom left
                          5: Bottom right
                          6: Top left
                          7: Top right
                          Defaults to 0 
  -e, -strategy           Strategy [0-1]:
                          0: Align
                          1: Hull
                          Defaults to 0 
  -f, -force              Overwrite existing output file
  -h, -help               Display this help
  -i, -iterations=ITR     Number of iterations to use
                          Higher numbers yield better results but take longer
                          Defaults to 100
  -r, -rotations=ROT      Use ROT rotations for parts
                          Defaults to 4, meaning rotate by 
                          0 degrees, 90 degrees, 
                          180 degrees or 270 degrees
  -s, -sheets=LAYER_NAMES Comma-separated list of layer(s) containing sheets
                          List may include regular expressions
  -m, -margin             Margin (minimum distance between parts)
                          Defaults to 0
  -n, -sheet=MARGIN       Sheet margin (minimum distance between sheet and parts)
                          Defaults to 0
      -no-align           Don't align parts with largest side to X axis
      -no-holes           Don't use holes for part placement
  -o, -output=FILE        Set CAD output file to FILE
  -p, -parts=LAYER_NAMES  Comma-separated list of layer(s) containing parts
                          List may include regular expressions
  -t, -tolerance=TOL      Tolerance. Affects margins but not part or sheet quality
                          Defaults to 0.1

Example:
./dwgnest -p Parts -s Sheets -o out.dxf in.dxf

macOS specific options:

  -no-dock-icon           Don't show icon in dock. This should only be used
                          in combination with -no-gui.