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What units are pgfphysicalheight and pgfphysicalwidth defined in?

2

I often use pgfphysicalheight and pgfphysicalwidth from the pgfpages package to define sizes dynamically based on the dimensions of my page (which vary). For example, here's a "dynamic" vertical space:

vspace*{.04pgfphysicalheight}

What units are these pgf values actually in? In other words, what is the value of pgfphysicalheight if my document height is 10in?

I found nothing in the pgfpages docs. Also tried logging the values with show, but got something cryptic like "dimen195" which I couldn't decipher further.

tikz-pgf lengths pgfpages

share|improve this question

edited 5 hours ago

David Carlisle

501k4211471897

asked 5 hours ago

kontextifykontextify

1765

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  use showthe not show
  
  – David Carlisle
  5 hours ago
  

  
  
  
  

add a comment | 

2

I often use pgfphysicalheight and pgfphysicalwidth from the pgfpages package to define sizes dynamically based on the dimensions of my page (which vary). For example, here's a "dynamic" vertical space:

vspace*{.04pgfphysicalheight}

What units are these pgf values actually in? In other words, what is the value of pgfphysicalheight if my document height is 10in?

I found nothing in the pgfpages docs. Also tried logging the values with show, but got something cryptic like "dimen195" which I couldn't decipher further.

tikz-pgf lengths pgfpages

share|improve this question

edited 5 hours ago

David Carlisle

501k4211471897

asked 5 hours ago

kontextifykontextify

1765

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  use showthe not show
  
  – David Carlisle
  5 hours ago
  

  
  
  
  

add a comment | 

I often use pgfphysicalheight and pgfphysicalwidth from the pgfpages package to define sizes dynamically based on the dimensions of my page (which vary). For example, here's a "dynamic" vertical space:

vspace*{.04pgfphysicalheight}

What units are these pgf values actually in? In other words, what is the value of pgfphysicalheight if my document height is 10in?

I found nothing in the pgfpages docs. Also tried logging the values with show, but got something cryptic like "dimen195" which I couldn't decipher further.

tikz-pgf lengths pgfpages

share|improve this question

edited 5 hours ago

David Carlisle

501k4211471897

asked 5 hours ago

kontextifykontextify

1765

vspace*{.04pgfphysicalheight}

share|improve this question

edited 5 hours ago

David Carlisle

501k4211471897

asked 5 hours ago

kontextifykontextify

1765

share|improve this question

edited 5 hours ago

David Carlisle

501k4211471897

asked 5 hours ago

kontextifykontextify

1765

edited 5 hours ago

David Carlisle

501k4211471897

edited 5 hours ago

David Carlisle

501k4211471897

asked 5 hours ago

kontextifykontextify

1765

asked 5 hours ago

kontextifykontextify

1765

1 Answer
1

active

oldest

votes

5

A TeX length (dimen or skip) register does not store the units used when the value is set, whether you use pt or cm or whatever is not recorded and it just saves the value as an integer which is the length in sp, if you look at the value using the or showthe then TeX will show the value using pt units (that is, the stored integer divided by 65536)

On the terminal you could see this for example by:

$ latex 

This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019) (preloaded format=latex)

 restricted write18 enabled.

**relax

entering extended mode

LaTeX2e <2018-12-01>



*textheight=10in



*showthetextheight

> 722.7pt.

<*> showthetextheight

share|improve this answer

edited 5 hours ago

answered 5 hours ago

David CarlisleDavid Carlisle

501k4211471897

add a comment | 

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5

A TeX length (dimen or skip) register does not store the units used when the value is set, whether you use pt or cm or whatever is not recorded and it just saves the value as an integer which is the length in sp, if you look at the value using the or showthe then TeX will show the value using pt units (that is, the stored integer divided by 65536)

On the terminal you could see this for example by:

$ latex 

This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019) (preloaded format=latex)

 restricted write18 enabled.

**relax

entering extended mode

LaTeX2e <2018-12-01>



*textheight=10in



*showthetextheight

> 722.7pt.

<*> showthetextheight

share|improve this answer

edited 5 hours ago

answered 5 hours ago

David CarlisleDavid Carlisle

501k4211471897

add a comment | 

5

A TeX length (dimen or skip) register does not store the units used when the value is set, whether you use pt or cm or whatever is not recorded and it just saves the value as an integer which is the length in sp, if you look at the value using the or showthe then TeX will show the value using pt units (that is, the stored integer divided by 65536)

On the terminal you could see this for example by:

$ latex 

This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019) (preloaded format=latex)

 restricted write18 enabled.

**relax

entering extended mode

LaTeX2e <2018-12-01>



*textheight=10in



*showthetextheight

> 722.7pt.

<*> showthetextheight

share|improve this answer

edited 5 hours ago

answered 5 hours ago

David CarlisleDavid Carlisle

501k4211471897

add a comment | 

A TeX length (dimen or skip) register does not store the units used when the value is set, whether you use pt or cm or whatever is not recorded and it just saves the value as an integer which is the length in sp, if you look at the value using the or showthe then TeX will show the value using pt units (that is, the stored integer divided by 65536)

On the terminal you could see this for example by:

$ latex 

This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019) (preloaded format=latex)

 restricted write18 enabled.

**relax

entering extended mode

LaTeX2e <2018-12-01>



*textheight=10in



*showthetextheight

> 722.7pt.

<*> showthetextheight

share|improve this answer

edited 5 hours ago

answered 5 hours ago

David CarlisleDavid Carlisle

501k4211471897

$ latex 

This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019) (preloaded format=latex)

 restricted write18 enabled.

**relax

entering extended mode

LaTeX2e <2018-12-01>



*textheight=10in



*showthetextheight

> 722.7pt.

<*> showthetextheight

share|improve this answer

edited 5 hours ago

answered 5 hours ago

David CarlisleDavid Carlisle

501k4211471897

answered 5 hours ago

David CarlisleDavid Carlisle

501k4211471897

answered 5 hours ago

David CarlisleDavid Carlisle

501k4211471897