getting the anchorpoints in photoshop path

[johanwieland]

Hi,

it is possible to read the name of a path created with photoshop, example:
exiftool -path7d0 /pathto/file.psd
returns the name of the first path

a path should contains an array of anchorpoints, coordinates. Is it possible to grep those  coordinates with exiftool, like imagemagick's identify -verbose does in svg section of output?

[Phil Harvey]

I assume you have the "photoshop_paths.config" file installed?

Anything is possible given suitable decoding in the user-defined tag definition.  Currently the definition extracts only the name, but it could extract any other arbitrary information that you want.

- Phil

[johanwieland]

thank for your respons,
yes, i used now:
exiftool -config photoshop_paths.config -allpaths   "name of file.tif"

but don't understand what to change to get the array of anchorpoints instead of the name of the path.

[Phil Harvey]

Hi Johan,

but don't understand what to change to get the array of anchorpoints instead of the name of the path.

OK, I see you are going to make me do some work here.

I don't know how you want the anchor points presented, but attached is a config file that will print the anchor points for all Bezier knots.  The coordinates range from (0,0) for the top-left of the image, to (1,1) for the bottom-right (provided I am decoding them properly).

- Phil

Edit: Swapped x/y coordinates in anchor point output

Edit2: Patched code to avoid potential problem with paths having very long names

[johanwieland]

i say: wow,
great, this is very usefull,

exiftool -config ./anchors.config  -allpaths nameoffile.tif

output is now:
Path 7d0                        : pietjepuk (0.0577419,0.156774) (0.0577419,0.870968) (0.944194,0.870968) (0.944194,0.156774)
Path 7d1                        : heelbeeld (0,0) (0,1) (1,1) (1,0)

now it is possible to parse that and related to width and heigth to calculate the position in pixels

thank you very much.

[Phil Harvey]

Great.  Just one thing.  I was re-reading the Photoshop documentation and realized the x/y coordinates were swapped in the config file I posted.  (I meant for the horizontal component to come first, and I didn't realize it was the other way around in the path record.)  I have edited the config file in my previous post to fix this.

- Phil

[Silvano]

Hi Phil,

I'm newbye and very interested on ExifTool for copy path information from one file to another, but exists the possiblity of use an intermediate file? like export the path information on a .tmp file and in second time apply the .tmp to the same file without path? I was able to export the path to a file with -n option, but after my brain's gone on hold.

Regards,
Silvano

[Phil Harvey]

With the photohop_paths.config config file you should be able to copy the paths to any other file that supports Photoshop information.  If you want to create one from scratch, I would suggest maybe a .exv format file:

exiftool -config photoshop_paths.config -o out.exv -allpaths FILE

- Phil

[patrickgh]

Hi Phil,

your config file works great - thank you! Is there a way to merge it with the default "photoshop_paths.config" file which i am already using? I was trying it myself but i could not get it to work.

My goal is to retrieve the Path names and the coordinates seperated. For example with

Code Select Expand


exiftool -config photoshop_paths.config -allpaths file.tif
Path 7d0                        : test



and

Code Select Expand


exiftool -config photoshop_paths.config -allpathcoordinates file.tif
PathCoordiante 7d0                        : (0,0) (0,1) (1,1) (1,0)


Regards,
Patrick

[Phil Harvey]

Hi Patrick,

This is a bit tricky since what you suggest requires re-defining the way a specific Photoshop tag is converted.

However, we can use one of the cool (and rarely used) ExifTool features (the -userParam option) to control how the tags are converted:

exiftool -config photoshop_paths.config -allpaths FILE - path names only

exiftool -config photoshop_paths.config -allpaths -userparam anchor FILE - names and anchor points

exiftool -config photoshop_paths.config -allpaths -userparam anchoronly FILE - anchor points only

Attached is the config file to make this happen.  This updated photoshop_paths.config file will appear in the next ExifTool release.

- Phil

[patrickgh]

Awesome! This helps me a lot 

Thank you!