Auto calculated image dimensions

Nico3939 · 2020-04-28 19:27:52

Hello,
Currently on the photo legend in the viewer, I display the pixel dimensions of the photos like this:
"Dimensions: 5658 x 6880 px"

On the other hand is there a means/a method allowing to make an automatic calculation to display the resulting size at 300dpi in this way?:

"Dimensions: 5658 x 6880 px | 47,9 x 58,3 cm | 18,9 x 22,9 inches | 300dpi"

thank you in advance
Nico

Nico3939 · 2020-04-28 21:33:43

So for recap:

Dimensions: 5658 x 6880 px | 47,9 x 58,3 cm | 18,9 x 22,9 inches | 300dpi

--> 5658/300 = 18,86 inches

--> 18,86 x 2,54 = 47,9 cm

should it work?

Native dimensions: {CroppedWidth} x {CroppedHeight}px | ({CroppedWidth}/300)*2.54 x ({CroppedHeight}/300)*2.54 cm | {CroppedWidth}/300 x {CroppedHeight}/300 inches | 300dpi

Last edited by Nico3939 (2020-04-28 22:28:02)

rod barbee · 2020-04-29 00:12:09

everything outside of the brackets is considered text and is printed as is.
You'd have to use LUA: http://backlight.theturninggate.net/doc … lua__token
But I don't know if LUA in Lightroom allows math functions (and I don't know what function it would be)

Daniel Leu · 2020-04-29 01:48:01

This turned out more challenging as expected, although the result looks rather straightforward

Native dimensions: {CroppedWidth} x {CroppedHeight}px | {LUA= return math.floor(CroppedWidth/300*2.54)} x {LUA= return math.floor(CroppedHeight/300*2.54)} cm | {LUA= return math.floor(CroppedWidth/300)} x {LUA= return math.floor(CroppedHeight/300)} inches | 300dpi

Daniel Leu · 2020-04-29 01:58:48

And this is with two decimal points:

Native dimensions: {CroppedWidth} x {CroppedHeight}px | {LUA= return string.format("%.2f",CroppedWidth/300*2.54)} x {LUA= return string.format("%.2f",CroppedHeight/300*2.54)} cm | {LUA= return string.format("%.2f",CroppedWidth/300)} x {LUA= return string.format("%.2f",CroppedHeight/300)} inches | 300dpi

rod barbee · 2020-04-29 02:27:51

very cool Daniel. I got to learn something new today!!

Nico3939 · 2020-04-29 02:32:45

Amazing Daniel thank you very much it works great!

One last question, is it possible to do a Carriage return?

Last edited by Nico3939 (2020-04-29 05:02:25)

rod barbee · 2020-04-29 04:23:56

no. html cannot be used in caption fields.

Last edited by rod barbee (2020-04-29 04:26:56)

Nico3939 · 2020-04-29 04:34:56

Thanks Rod, but it seems we can make a line break in LUA by using "\n" or "\r"

But it don’t work or I forget something

rod barbee · 2020-04-29 05:22:41

I Googled about and saw that the \ character is not allowed in some platforms.

Daniel Leu · 2020-04-29 05:40:03

rod barbee wrote:

very cool Daniel. I got to learn something new today!!

Yeah, me too

Daniel Leu · 2020-04-29 05:49:41

Nico3939 wrote:

Thanks Rod, but it seems we can make a line break in LUA by using "\n" or "\r"
But it don’t work or I forget something

I think this has to do with the internal processing of Lr, Backlight, and the display engine where line breaks can break the code.

chumby · 2020-04-29 17:19:34

That is genius work, Daniel!

Well done!

Cheers,
Chumby

Community @ The Turning Gate

#1 2020-04-28 19:27:52

Auto calculated image dimensions

#2 2020-04-28 21:33:43

Re: Auto calculated image dimensions

#3 2020-04-29 00:12:09

Re: Auto calculated image dimensions

#4 2020-04-29 01:48:01

Re: Auto calculated image dimensions

#5 2020-04-29 01:58:48

Re: Auto calculated image dimensions

#6 2020-04-29 02:27:51

Re: Auto calculated image dimensions

#7 2020-04-29 02:32:45

Re: Auto calculated image dimensions

#8 2020-04-29 04:23:56

Re: Auto calculated image dimensions

#9 2020-04-29 04:34:56

Re: Auto calculated image dimensions

#10 2020-04-29 05:22:41

Re: Auto calculated image dimensions

#11 2020-04-29 05:40:03

Re: Auto calculated image dimensions

#12 2020-04-29 05:49:41

Re: Auto calculated image dimensions

#13 2020-04-29 17:19:34

Re: Auto calculated image dimensions

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