Re: [NTG-context] Trying to emulate CSS

2014-10-18 Thread Hans Hagen 

On 10/17/2014 10:47 PM, Stuart Hungerford wrote:

Hans Hagen pragma at wxs.nl writes:


\starttext

\framed
[offset=overlay,width=4cm,height=4cm]
{\externalfigure[t:/sources/cow.pdf][factor=max]}

\framed
[offset=overlay,width=4cm,height=6cm]
{\externalfigure[t:/sources/cow.pdf][factor=max]}

\framed
[offset=overlay,width=6cm,height=4cm]
{\externalfigure[t:/sources/cow.pdf][factor=max]}

\stoptext


This works well, but what I'd like to do is choose a fixed
size frame
for each PDF and have ConTeXt fill the frame in the same
way as these
CSS commands:

object-fit  : cover;
object-position : top left;
overflow: hidden;

(http://www.w3.org/TR/css3-images/#the-object-fit)


Many thanks -- although I don't see the effect I'm trying to get.
In the code below the cow picture should fill the three frames at
three different scales with no white bars between the frame and
the externalfigure frame:

\setupexternalfigures[location={default}]

\starttext

\framed
[offset=overlay,width=10cm,height=2cm]
{\externalfigure[cow][frame=on,factor=max]}

\framed
[offset=overlay,width=4cm,height=8cm]
{\externalfigure[cow][frame=on,factor=max]}

\framed
[offset=overlay,width=6cm,height=6cm]
{\externalfigure[cow][frame=on,factor=max]}

\stoptext


We already have a low level repeater so I've added a low level filler. 
It will be in the next beta upload (probably not today).


\setupexternalfigures[location={default}]

\starttext

\framed[offset=overlay,width=6cm,height=3cm]{\backgroundimage 
{1}{\hsize}{\vsize}{\externalfigure[cow][width=1cm]}} \blank
\framed[offset=overlay,width=6cm,height=3cm]{\backgroundimage 
{2}{\hsize}{\vsize}{\externalfigure[cow][width=1cm]}} \blank
\framed[offset=overlay,width=6cm,height=3cm]{\backgroundimage 
{3}{\hsize}{\vsize}{\externalfigure[cow][width=1cm]}}


\page


\framed[offset=overlay,width=4cm,height=2cm]{\backgroundimagefill{1}{\hsize}{\vsize}{\externalfigure[cow]}} 
\blank


\framed[offset=overlay,width=4cm,height=2cm]{\backgroundimagefill{2}{\hsize}{\vsize}{\externalfigure[cow]}} 
\blank


\framed[offset=overlay,width=4cm,height=2cm]{\backgroundimagefill{3}{\hsize}{\vsize}{\externalfigure[cow]}}

\page


\framed[offset=overlay,width=2cm,height=4cm]{\backgroundimagefill{1}{\hsize}{\vsize}{\externalfigure[cow]}} 
\blank


\framed[offset=overlay,width=2cm,height=4cm]{\backgroundimagefill{2}{\hsize}{\vsize}{\externalfigure[cow]}} 
\blank


\framed[offset=overlay,width=2cm,height=4cm]{\backgroundimagefill{3}{\hsize}{\vsize}{\externalfigure[cow]}}

\page


\framed[offset=overlay,width=4cm,height=2cm]{\backgroundimagefill{1}{\hsize}{\vsize}{\externalfigure[mill]}} 
\blank


\framed[offset=overlay,width=4cm,height=2cm]{\backgroundimagefill{2}{\hsize}{\vsize}{\externalfigure[mill]}} 
\blank


\framed[offset=overlay,width=4cm,height=2cm]{\backgroundimagefill{3}{\hsize}{\vsize}{\externalfigure[mill]}}

\page


\framed[offset=overlay,width=2cm,height=4cm]{\backgroundimagefill{1}{\hsize}{\vsize}{\externalfigure[mill]}} 
\blank


\framed[offset=overlay,width=2cm,height=4cm]{\backgroundimagefill{2}{\hsize}{\vsize}{\externalfigure[mill]}} 
\blank


\framed[offset=overlay,width=2cm,height=4cm]{\backgroundimagefill{3}{\hsize}{\vsize}{\externalfigure[mill]}}

\stoptext


[I'm sending this via the Gmane interface as this thread hasn't come through
via the mailing list daily digests via email yet).


please avoid duplicate postings

Hans

-
  Hans Hagen | PRAGMA ADE
  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
 | www.pragma-pod.nl
-
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Re: [NTG-context] Trying to emulate CSS

2014-10-17 Thread Stuart Hungerford 
Hans Hagen pragma at wxs.nl writes:

 \starttext
 
 \framed
[offset=overlay,width=4cm,height=4cm]
{\externalfigure[t:/sources/cow.pdf][factor=max]}
 
 \framed
[offset=overlay,width=4cm,height=6cm]
{\externalfigure[t:/sources/cow.pdf][factor=max]}
 
 \framed
[offset=overlay,width=6cm,height=4cm]
{\externalfigure[t:/sources/cow.pdf][factor=max]}
 
 \stoptext
 
  This works well, but what I'd like to do is choose a fixed 
  size frame
  for each PDF and have ConTeXt fill the frame in the same 
  way as these
  CSS commands:
 
  object-fit  : cover;
  object-position : top left;
  overflow: hidden;
 
  (http://www.w3.org/TR/css3-images/#the-object-fit)

Many thanks -- although I don't see the effect I'm trying to get. 
In the code below the cow picture should fill the three frames at 
three different scales with no white bars between the frame and 
the externalfigure frame:

\setupexternalfigures[location={default}]

\starttext

\framed
   [offset=overlay,width=10cm,height=2cm]
   {\externalfigure[cow][frame=on,factor=max]}

\framed
   [offset=overlay,width=4cm,height=8cm]
   {\externalfigure[cow][frame=on,factor=max]}

\framed
   [offset=overlay,width=6cm,height=6cm]
   {\externalfigure[cow][frame=on,factor=max]}

\stoptext

Thanks,

Stu

[I'm sending this via the Gmane interface as this thread hasn't come through
via the mailing list daily digests via email yet).







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Re: [NTG-context] Trying to emulate CSS object-fit behaviour...

2014-10-16 Thread Hans Hagen 

On 10/16/2014 12:36 AM, Stuart Hungerford wrote:

Hi,

I have a collection of PDF files of varying sizes and aspect ratios.
I'm currently using a combination and external figures to place these
into frames:

\setupexternalfigures[width=45.2mm, frame=off, factor=fit]

\setupcombinations[nx=5,ny=4,width=277mm,distance=10mm,after={\blank[10mm]}]

\setupframed[offset=1.0mm,background=color,rulethickness=0.25pt,backgroundcolor=white,framecolor=lightgray]

\starttext
   \startsection
 [title={title text}]
 \placefigure[here][nonumber]
   {\vspace more text}
   {\startcombination
 {\framed[]
   {\externalfigure[1.pdf][location=middle]}{}}{}

   %% and so on


\starttext

\framed
  [offset=overlay,width=4cm,height=4cm]
  {\externalfigure[t:/sources/cow.pdf][factor=max]}

\framed
  [offset=overlay,width=4cm,height=6cm]
  {\externalfigure[t:/sources/cow.pdf][factor=max]}

\framed
  [offset=overlay,width=6cm,height=4cm]
  {\externalfigure[t:/sources/cow.pdf][factor=max]}

\stoptext



This works well, but what I'd like to do is choose a fixed size frame
for each PDF and have ConTeXt fill the frame in the same way as these
CSS commands:

object-fit  : cover;
object-position : top left;
overflow: hidden;

(http://www.w3.org/TR/css3-images/#the-object-fit)

That is, scale the PDF until all the frame is covered with some part
of the PDF, even if means overflowing the frame. The overflow:
hidden would then clip the overflow to the frame. Different PDF's
could have different scalings applied to make this work, which is fine
for this application.

I understand this may not be an idiomatic use of ConTeXt--any advice
or suggestions for alternate approaches much appreciated.

Stu
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--

-
  Hans Hagen | PRAGMA ADE
  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
 | www.pragma-pod.nl
-
___
If your question is of interest to others as well, please add an entry to the 
Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___

[NTG-context] Trying to emulate CSS object-fit behaviour...

2014-10-15 Thread Stuart Hungerford 
Hi,

I have a collection of PDF files of varying sizes and aspect ratios.
I'm currently using a combination and external figures to place these
into frames:

\setupexternalfigures[width=45.2mm, frame=off, factor=fit]

\setupcombinations[nx=5,ny=4,width=277mm,distance=10mm,after={\blank[10mm]}]

\setupframed[offset=1.0mm,background=color,rulethickness=0.25pt,backgroundcolor=white,framecolor=lightgray]

\starttext
  \startsection
[title={title text}]
\placefigure[here][nonumber]
  {\vspace more text}
  {\startcombination
{\framed[]
  {\externalfigure[1.pdf][location=middle]}{}}{}

  %% and so on

This works well, but what I'd like to do is choose a fixed size frame
for each PDF and have ConTeXt fill the frame in the same way as these
CSS commands:

object-fit  : cover;
object-position : top left;
overflow: hidden;

(http://www.w3.org/TR/css3-images/#the-object-fit)

That is, scale the PDF until all the frame is covered with some part
of the PDF, even if means overflowing the frame. The overflow:
hidden would then clip the overflow to the frame. Different PDF's
could have different scalings applied to make this work, which is fine
for this application.

I understand this may not be an idiomatic use of ConTeXt--any advice
or suggestions for alternate approaches much appreciated.

Stu
___
If your question is of interest to others as well, please add an entry to the 
Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___