Name

• Potrace Mac Brew Bar
• Potrace Mac Brew Company
• Potrace Mac Brew Pub
• Potrace Mac Brew Restaurant

The MiKTeX source code allows you to build a Drag'n'Drop installer for macOS: This HOWTO describes the build procedure. Homebrew is a package manager for macOS which you can use to install development libraries and build tools which are required for building MiKTeX on macOS. $ potrace -svg sample.bmp # sample.svg is created. 要望（ほしいもの） potraceはラスター画像をベクター画像に変換するすばらしいフリーソフトのようだけれど、手描きの曲線を塗りつぶすのではなく太い曲線としてベクター画像に変換してくれるソフトはないものか。.

potrace - transform bitmaps into vector graphics.

Synopsis

Description

potrace is a tool for tracing a bitmap, which means, transforming a bitmap into a smooth, scalable image. The input is a bitmap, which means, apixel-based image composed of the two colors black and white only. The default output is an encapsulated PostScript file (EPS). A typical use is to create EPSfiles from scanned data, such as company or university logos, handwritten notes, etc. The resulting image is not 'jaggy' like a bitmap, but smooth. It can thenbe rendered at any resolution.

potrace can read bitmaps in the following formats: PBM, PGM, PPM (collectively known as PNM, see pnm(5)), as well as BMP (Windows and OS/2 bitmapformats). The input image should only use the two colors black and white. If other pixel values appear in the input, they will be converted to black and whiteusing a simple threshold method.

potrace can currently produce the following output formats: EPS, PostScript, PDF, SVG, DXF, GeoJSON, PGM, Gimppath, and XFig. Additional backendsmight be added in the future.

Options

The following options are supported. Dimensions (arguments of type dim) can have optional units, e.g. 6.5in, 15cm, 100pt. The default unit is inches(or centimeters, if this was configured at compile time, see COMPILE TIME CONFIGURATION below). For pixel-based output formats such as PGM, DXF, GeoJSON, andGimppath, the default unit is pixels.

General options:

print help message and exit.

-v, --version

print version info and exit. This also shows the defaults that were compiled into this version of potrace.

-l, --license

print license info and exit.

Input/output options:

Each file can hold an input image, or multiple concatenated input images. If filename arguments are given, then potrace will by default create oneoutput file for each input filename given. The name of the output file is obtained from the input filename by changing its suffix according to the chosenbackend. If changing the suffix is impossible because the names of the input and output files would be identical, then the output filename is created by addingthe '-out' suffix to the name of the input file. If no filename arguments are given, then potrace acts as a filter, reading from standard input andwriting to standard output. A filename of '-' may be given to specify reading from standard input.

write output to this file. All output is directed to the specified file. If this option is used, then multiple input filenames are only allowed formulti-page backends (see BACKEND TYPES below). In this case, each input file may contain one or more bitmaps, and all the bitmaps from all the input files areprocessed and the output concatenated into a single file. A filename of '-' may be given to specify writing to standard output.

End of options. Any remaining arguments are interpreted as filenames. This also disables filter mode, even if no filenames are given. This is useful forshell scripts, because potrace -- $FILENAMES will behave correctly even for an empty list of filenames. However, -- with an empty list offilenames is not permitted in conjunction with the -o option, because this would generate a document of zero pages, which none of the backendspermit.

Backend selection:

-e, --eps, -b eps, --backend eps

EPS backend (default). The output is an encapsulated PostScript file. This is a single-page, variable-sized backend.

-b pdf, --backend pdf

PDF backend. The output is a file in the Portable Document Format. If the input consists of multiple bitmaps, they are each rendered on a separate page.This is a multi-page, variable-sized, backend.

-s, --svg, -b svg, --backend svg

SVG backend. The output is a Scalable Vector Graphics (SVG) file. This is a single-page, variable-sized backend.

-b geojson, --backend geojson

GeoJSON backend. The output is a file in the format used by some applications processing geographical data. In this backend, all Bezier curves areapproximated by 8 straight line segments. This is a single-page, variable-sized, pixel-based backend. The -u option has no effect for thisbackend.

-b gimppath, --backend gimppath

Gimppath backend. This backend produces output suitable to be imported as a path by the GNU Image Manipulation Program (Gimp) (in the Layers, Channels &Paths dialog, select Paths, then right-click and select Import Path). The output is actually an SVG file. The differences to the SVG backend are: the--opaque option has no effect, the --flat option is always on, and the dimensions are pixel-based. This is a single-page, variable-sized,pixel-based backend.

For more detailed information on these options, see TECHNICAL DOCUMENTATION below.

-zpolicy, --turnpolicypolicy

specify how to resolve ambiguities in path decomposition. Must be one of black, white, right, left, minority, majority, or random. Default is minority. Turnpolicies can be abbreviated by an unambigous prefix, e.g., one can specify min instead of minority.

-an, --alphamaxn

set the corner threshold parameter. The default value is 1. The smaller this value, the more sharp corners will be produced. If this parameter is 0, then nosmoothing will be performed and the output is a polygon. If this parameter is greater than 4/3, then all corners are suppressed and the output is completelysmooth.

-On, --opttolerancen

set the curve optimization tolerance. The default value is 0.2. Larger values allow more consecutive Bezier curve segments to be joined together in a singlesegment, at the expense of accuracy.

set output quantization. Coordinates in the output are rounded to 1/unit pixels. The default of 10 usually gives good results. For some of the debug modes,a value of 100 gives more accurate output. This option has no effect for the XFig backend, which always rasterizes to 1/1200 inch, or for the DXF backend. Forthe GeoJSON backend, this option is only a hint; the actual rounding may be more, but not less, accurate than specified.

produce debugging output of type n. This has different effects for different backends. For the PostScript/EPS backends, the values n=1,2,3 illustrate theintermediate stages of the potrace algorithm.

Scaling and placement options:

-Wdim, --widthdim

set the width of output image (before any rotation and margins). If only one of width and height is specified, the other is adjusted accordingly so that theaspect ratio is preserved.

-rn[xn], --resolutionn[xn]

for dimension-based backends, set the resolution (in dpi). One inch in the output image corresponds to this many pixels in the input. Note that a largervalue results in a smaller output image. It is possible to specify separate resolutions in the x and y directions by giving an argument of the formnxn. For variable-sized backends, the default resolution is 72dpi. For fixed-size backends, there is no default resolution; the image is bydefault scaled to fit on the page. This option has no effect for pixel-based backends. If -W or -H are specified, they take precedence.

-Sn, --stretchn

set the aspect ratio. A value greater than 1 means the image will be stretched in the y direction. A value between 0 and 1 means the image will becompressed in the y direction.

-Mdim, --margindim

set all four margins. The effect and default value of this option depend on the backend. For variable-sized backends, the margins will simply be addedaround the output image (or subtracted, in case of negative margins). The default margin for these backends is 0. For fixed-size backends, the margin settingscan be used to control the placement of the image on the page. If only one of the left and right margin is given, the image will be placed this distance fromthe respective edge of the page, and similarly for top and bottom. If margins are given on opposite sides, the image is scaled to fit between these margins,unless the scaling is already determined explicitly by one or more of the -W, -H, -r, or -x options. By default, fixed-sizebackends use a non-zero margin whose width depends on the page size.

-Rdim, --rightmargindim

set the right margin. See -M for details.

-Bdim, --bottommargindim

set the bottom margin. See -M for details.

remove whitespace around the image before scaling and margins are applied. If this option is given, calculations of the width, height, and margins are basedon the actual vector outline, rather than on the outer dimensions of the input pixmap, which is the default. In particular, the --tight option can beused to remove any existing margins from the input image. See the file placement.pdf for a more detailed illustration.

Color options:

--fillcolor#rrggbb

set the fill color of the output image, i.e., the color of the 'white' parts that are enclosed by 'black' parts. The default is to leave these partstransparent. Implies --opaque. Please note that this option sets the background color; to set the foreground color, use --color instead.

fill in the white parts of the image opaquely, instead of leaving them transparent. This only applies to interior white parts, i.e., those that are enclosedinside a black outline. Opaqueness is always in effect for the XFig backend.

SVG options:

for SVG output, try to group related paths together. Each path is grouped together with all paths that are contained inside it, so that they can be movedaround as a unit with an SVG editor. This makes coloring individual components slightly more cumbersome, and thus it is not the default.

--flat

for SVG output, put the entire image into a single path. This makes it impossible to color the components individually, and thus it is not the default. Butthe resulting SVG file can be more easily imported by some applications such as Gimp. In fact, the Gimppath backend is a variation of the SVG backend with the--flat option and pixel-based scaling. The --flat option has no effect if --opaque has been selected.

PostScript/EPS/PDF options:

Potrace Mac Brew Bar

-q, --longcoding

turn off optimized numerical coding in PostScript output. Normally, potrace uses a very compact numerical format to represent Bezier curves inPostScript, taking advantage of existing redundancy in the curve parameters. This option disables this behavior, resulting in longer, but more readable output(particularly if the -c option is also used).

PGM options:

-kn, --blackleveln

set the threshold level for converting input images to bitmaps. The potrace algorithm expects a bitmap, thus all pixels of the input images areconverted to black or white before processing begins. Pixels whose brightness is less than n are converted to black, all other pixels to white. Heren is a number between 0 and 1. One case is treated specially: if the input is in an indexed color format with exactly 2 colors, then the blacklevel isignored and the darker of the two colors is mapped to black.

Note: the method used by potrace for converting greymaps to bitmaps is very crude; much better results can be obtained if a separate program, such asmkbitmap(1), is used for this purpose. In particular, mkbitmap(1), which is distributed with potrace, has the ability to scale andinterpolate the image before thresholding, which results in much better preservation of detail.

-i, --invert

invert the input bitmap before processing.

Progress bar options:

--progress

display a progress bar for each bitmap that is processed. This is useful for interactive use. The default behavior is not to show any progress information.

--ttymode

set the terminal mode for progress bar rendering. Possible values are 'vt100', which requires a vt100-compatible terminal, and 'dumb', which uses only ASCIIcharacters. The default is system dependent.

Backend Types

Backends can be classified in several ways, which affects the available command line options and their behavior:

--disable-zlib

compile potrace without the zlib compression library. This means PostScript level 3 compression will not be available.

--enable-metric

compile potrace with centimeters as the default unit instead of inches.

--enable-a4

compile potrace with A4 as the default page size.

Exit Status

The exit status is 0 on successful completion, 1 if the command line was invalid, and 2 on any other error.

Version

1.11

Author

Peter Selinger <selinger at users.sourceforge.net>

Please see the file AUTHORS for a full list of other contributors.

Technical Documentation

For a detailed technical description of the potrace algorithm, see the file potrace.pdf, which is available from the potrace web site. Forinformation on the Potrace library API, see potracelib.pdf.

Web Site And Support

Potrace Mac Brew Company

The latest version of potrace is available from http://potrace.sourceforge.net/. This site also contains a list of frequently asked questions, aswell as information on how to obtain support.

See Also

mkbitmap(1)

Copyright

Copyright © 2001-2013 Peter Selinger

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free SoftwareFoundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESSFOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 TemplePlace, Suite 330, Boston, MA 02111-1307, USA. See also http://www.gnu.org/.

Potrace Mac Brew Pub

Referenced By

dvisvgm(1)

Rishard Khan

rishard.khan@guardian.co.tt

A body­guard who res­cued a cou­ple who were swept away in their ve­hi­cle by flood­wa­ters last Thurs­day, is grate­ful that he was in the right place at the right time to save them.

The cou­ple Michael Gomes res­cued turned out to be long­time Peo­ple’s Na­tion­al Move­ment stal­wart Fer­die Fer­reira, 89, and his wife Pearl, 83.

Last Thurs­day, heavy rains lead to flood­ing along the Mac­queripe Road in Ch­aguara­mas, lead­ing the riv­er to burst its banks.

At some stage dur­ing the flood­ing, Fer­reira and his wife were head­ing along the road­way in their Toy­ota Corol­la when they got to a point where the road was flood­ed and at­tempt­ed to cross in their ve­hi­cle. How­ev­er, the ve­hi­cle was swept away by the rag­ing flood­wa­ters.

“I got a phone call that an el­der­ly cou­ple dri­ving a bur­gundy Toy­ota Corol­la at­tempt­ed to cross the flood­ed wa­ters across the Mac­queripe main road. They were swept away in­to the flow­ing wa­ters,” Gomes told Guardian Me­dia in a voice note re­count­ing the in­ci­dent yes­ter­day.

“I im­me­di­ate­ly called the in­spec­tor of the CDA (Ch­aguara­mas De­vel­op­ment Au­thor­i­ty), in­spec­tor Dole, in­form­ing him of the sit­u­a­tion, where he did in­form the army, Coast Guard and al­so an am­bu­lance. I al­so asked him for a map of that area and where the riv­er runs and leads to.”

Gomes told Guardian Me­dia that he was able to gain ac­cess to a tele­han­dler and op­er­a­tor from his boss to as­sist them in their ef­forts to res­cue the cou­ple. Gomes is the head of se­cu­ri­ty at the UP­ick Farms.

“Af­ter about half an hour of search, al­most 200 me­ters in­side the mud­dy ter­rain, we found the el­der­ly cou­ple. They were trau­ma­tised but okay,” Gomes said.

Gomes and the op­er­a­tor first re­moved the cou­ple from the ve­hi­cle and they were tak­en to the St James Med­ical Com­plex to be ex­am­ined. Gomes and his team of res­cuers then re­moved the ve­hi­cle from where it was lodged in the mud and shrub­bery.

“Good thing we were around that we could have saved them,” Gomes said.

A video of the re­moval of the video was post­ed on so­cial me­dia last week. At the time, how­ev­er, the so­cial me­dia users were un­aware of the events pri­or to the re­moval of the car from the flood­wa­ters and who was in­volved. The in­for­ma­tion of those in­volved in the fright­ful in­ci­dent came to light over the week­end.

Ef­forts to con­tact Fer­reira yes­ter­day were un­suc­cess­ful as calls to his cell­phone went unan­swered.

Potrace Mac Brew Restaurant

This was the sec­ond time in re­cent weeks that per­sons has been swept away by flood­wa­ters.

Ear­li­er this month, Princes Town res­i­dent An­tho­ny Walkes died af­ter he was swept away by flood­wa­ters while cross­ing a bridge in Hard­bar­gain, Williamsville, as he got trapped in heavy rains while go­ing to see a rel­a­tive. His body was re­cov­ered in the Guaracara Riv­er days lat­er.