Re: image crop

On 2015-08-05, JENNIFER ITO wrote:

> [-- Type: text/plain, Encoding: quoted-printable --]

> Thanks for the responses!

> Unfortunately, I'd like the changes also to occur in the generated pdf as
> well.  I don't think the css file modifications in html carry over, correct?

We have to think about 2 steps:

1. How to achieve image cropping in the various output formats.

   * Image cropping is supported in LaTeX with options to the 
     \includegraphics command.
     
   * There limited support for image cropping in HTML via CSS styling.
   
       The ``clip`` CSS property is obsolete and only applicable
       to absolutely positioned elements, that is elements with
       ``position:absolute`` or ``position:fixed``.
       https://developer.mozilla.org/en-US/docs/Web/CSS/clip
       (Thanks to Alan G Isaac for the link.)
  	  
       The ``clip-path`` CSS property is experimental with very limited
       browser support.
       https://developer.mozilla.org/en-US/docs/Web/CSS/clip-path
     
     Alternatively, in HTML5 and XHTML, we could insert the image via an
     inline-SVG wrapper that loads the image and applies a crop-path.
     http://www.w3.org/TR/2010/WD-html5-20100624/the-map-element.html#svg-0
     
     This is standards-comliable and supported in most current browsers,
     http://www.w3schools.com/HTML/html5_svg.asp
          
   * Support in ODF is also desirable but I don't know the status.
     
2. How to design a common interface for rst.
   (I would opt for additional "image" directive options modelled after
   \includegraphics.)
   

This would make a nice little enhancement project.
   
Günter


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