On Sep 11, 2008, at 9:28 AM, Hans Hagen wrote:

\starttext

\framed[width=5cm,height4cm]{\externalfigure[mill.png] [maxwidth=3cm,maxheight=4cm,width=10cm]}

\stoptext

seems to work

Ah of course! I could set the width to an absurdly high number and so make sure that it will always reach the maxheight/maxwidth, no matter what the ratio! This seems to work, thanks a lot! Thomas

Thomas A. Schmitz schrieb:

On Sep 11, 2008, at 10:04 AM, Thomas A. Schmitz wrote:

...

On Sep 11, 2008, at 9:28 AM, Hans Hagen wrote:

...

\starttext

\framed[width=5cm,height4cm]{\externalfigure[mill.png] [maxwidth=3cm,maxheight=4cm,width=10cm]}

\stoptext

seems to work Ah of course! I could set the width to an absurdly high number and so make sure that it will always reach the maxheight/maxwidth, no matter what the ratio! This seems to work, thanks a lot!

Alas, I spake too soon. Here is an example:

\starttext

\framed[frame=on,strut=no,width=8cm,height=2cm] {\externalfigure[mill.png][maxwidth=8cm,maxheight=2cm,width=10cm]}

\stoptext

I would expect the picture to stay within the maxheight, but it doesn't.

Hi Thomas, I tried the above solution for the creation of figure libraries a few hours ago... with the same result. Using 'height=10cm' instead of 'width=10cm' should work in this case. At least this workaround gives the right results for my squared graphics (icons). Anyhow, this is no general solution... Best, Peter

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Thomas A. Schmitz wrote:

On Sep 11, 2008, at 4:01 PM, Peter Rolf wrote:

...

Hi Thomas,

I tried the above solution for the creation of figure libraries a few hours ago... with the same result. Using 'height=10cm' instead of 'width=10cm' should work in this case. At least this workaround gives the right results for my squared graphics (icons). Anyhow, this is no general solution...

Best, Peter

Hi Peter,

yes, unfortunately I'm looking for a general solution for images whose dimensions and ratio are not known beforehand. Looks like we're all hitting the same snag...

the problem is that in mkii the macros involved in this are rather complex; i'm considering a pure lua solution but that would not be fully compatible with mkii (i.e. it would be more clever and precise) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

On Sep 11, 2008, at 4:13 PM, Wolfgang Schuster wrote:

On Thu, Sep 11, 2008 at 3:28 PM, Thomas A. Schmitz wrote:

...

On Sep 11, 2008, at 10:04 AM, Thomas A. Schmitz wrote:

...

On Sep 11, 2008, at 9:28 AM, Hans Hagen wrote:

...

\starttext

\framed[width=5cm,height4cm]{\externalfigure[mill.png] [maxwidth=3cm,maxheight=4cm,width=10cm]}

\stoptext

seems to work

Ah of course! I could set the width to an absurdly high number and so make sure that it will always reach the maxheight/maxwidth, no matter what the ratio! This seems to work, thanks a lot!

Alas, I spake too soon. Here is an example:

\starttext

\framed[frame=on,strut=no,width=8cm,height=2cm] {\externalfigure[mill.png][maxwidth=8cm,maxheight=2cm,width=10cm]}

\stoptext

I would expect the picture to stay within the maxheight, but it doesn't.

You could write your own macros and comapre the width/height ration of the picture with the reation of the box, is simple example is shown below.

\starttext

\start

\setbox\scratchbox\vbox{\externalfigure[mill]}

\dimen0=\wd\scratchbox \dimen2=\ht\scratchbox

\framed[frame=on,strut=no,width=8cm,height=2cm] {\dimen1=\hsize \divide\dimen1 by \dimen0 \dimen3=\vsize \divide\dimen3 by \dimen2 \ifdim\dimen1>\dimen3 \externalfigure[mill][height=\vsize] \else \externalfigure[mill][width=\hsize] \fi}

\framed[frame=on,strut=no,width=2cm,height=8cm] {\dimen1=\hsize \divide\dimen1 by \dimen0 \dimen3=\vsize \divide\dimen3 by \dimen2 \ifdim\dimen1>\dimen3 \externalfigure[mill][height=\vsize] \else \externalfigure[mill][width=\hsize] \fi}

\stop

\stoptext

Wolfgang

Wolfgang, as always, you're a source of wisdom and knowledge... Just I understand this correctly and can adapt it to my macro: \dimen1= \hsize: here \hsize refers to the size of the \framed inside which we're operating, right? Thomas

On Sep 11, 2008, at 6:20 PM, Thomas A. Schmitz wrote:

...

\starttext

\start

\setbox\scratchbox\vbox{\externalfigure[mill]}

\dimen0=\wd\scratchbox \dimen2=\ht\scratchbox

\framed[frame=on,strut=no,width=8cm,height=2cm] {\dimen1=\hsize \divide\dimen1 by \dimen0 \dimen3=\vsize \divide\dimen3 by \dimen2 \ifdim\dimen1>\dimen3 \externalfigure[mill][height=\vsize] \else \externalfigure[mill][width=\hsize] \fi}

\framed[frame=on,strut=no,width=2cm,height=8cm] {\dimen1=\hsize \divide\dimen1 by \dimen0 \dimen3=\vsize \divide\dimen3 by \dimen2 \ifdim\dimen1>\dimen3 \externalfigure[mill][height=\vsize] \else \externalfigure[mill][width=\hsize] \fi}

\stop

\stoptext

Wolfgang

Wolfgang,

as always, you're a source of wisdom and knowledge... Just I understand this correctly and can adapt it to my macro: \dimen1= \hsize: here \hsize refers to the size of the \framed inside which we're operating, right?

And another question: I get an error "! Illegal unit of measure (pt inserted)." Is it really possible to divide a dimension by another dimension? Not according to what I read here: http://www.tug.org/utilities/plain/cseq.html#divide-rp "must be a nonzero integer." See, I'm far from being a native speaker of TeX... Best Thomas

On Fri, Sep 12, 2008 at 12:02 PM, Wolfgang Schuster wrote:

On Thu, Sep 11, 2008 at 6:31 PM, Mojca Miklavec wrote:

...

On Thu, Sep 11, 2008 at 12:06 AM, Thomas A. Schmitz wrote:

...

Hi guys,

I'm pulling my hair out. I'm trying to set up an automatism to fit pictures to the available space on a slide.

Hello,

I'm probably talking about something else, though highly related. There's one thing that I often miss on slides:

*Here's a title*

- here are - some items

[and I want the picture to fill up all the remaining space on slide]

Or even if there' only title + image. I tried option=max (or something similar), but always ended up setting image size manually. Most often I got title on one page and image on another (It would be less painful to have image on the same page, even if it hangs much over the lower border - is there something similar to \placefigure[thispage] option (puts the figure on the same page, even if there's no space left)?)

Mojca

[I need to stop asking questions now.]

Quick and dirty:

\showframe

\starttext

\input knuth

\start

\scratchdimen=\pagegoal \advance\scratchdimen by -\pagetotal \advance\scratchdimen by -2\lineheight

\blank

\hrule height \scratchdimen\relax

\stop

\stoptext

Thanks a lot! Two new words for my TeX dictionary (\pagegoal, \pagetotal). Something like this (if packed inside the \placesomething macro) would be great to have in the core as well. I'll clone this code from now on :) Mojca