There used to be a way to specify the size of the _thumb but I don't recall it off the top of my head. I'll see if I can dig it up and if it still works.

As for ImageGen... you should find the performance is the same as for a static file, since all generated images are cached to disk. Only the first instance of creating the resized image should take any time, and that is usually very fast... though a slow or over-burdened server will take more time to generate the cached image. However, there is a caching bug in ImageGen 2.0.1 and you should grab the update at http://our.umbraco.org/projects/imagegen

cheers,
doug.

Go to the developer-section and open data-types. Go and edit 'Upload'. You can define multiple dimensions for thumbnails there. Everytime you add a new image, a thumbnail with that dimension will be created as well.

If you fill in 250, then _thumb_250 is appended to the name.

HTH,

Peter

@Doug: it still works ;)

And following Peter's post, max width/height of the thumb will be 250 depending on the image layout! If original pic is a 200x100 (hxw) portrait pic, then thumb_250 will have a 250x125 dimension. And the other way around for landscape pics.

Cheers,

/Dirk

thanks very much guys, all of that information is a huge help.

Sorry I know this is an old post but I just dont get it.

When I go to DataTypes and edit Upload I can see the settings:

Database datatype:  [ Nvarchar ]

Thumnail sizes ( mas width/height, semicolon seperated for multi    [ input field ]

How do I write the width and height in the input filed at Thumbnail sizes? I've tried to type in like 190, but nothing happens when I upload a new image. It still makes a thumbnail with the width 100px;

Cant find anything in the XSLT file or in the CSS files. So how do I change this?

Ok so I got a Dokumenttype that I call Gallery Photo.
Inside the dokumentype I got a property for the Image width and height, called umbracoWidth and umbracoHeight.

Under developer section I got two XSLT files called: galleryListAlbums.xslt, galleryPhotos.xslt

I guess it's the galleryPhotos.xslt I need to focus on, since thats where I find the umbracoHeight/Width values

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xsl:stylesheet [ <!ENTITY nbsp "&#x00A0;"> ]>
<xsl:stylesheet
  version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:msxml="urn:schemas-microsoft-com:xslt"
  xmlns:umbraco.library="urn:umbraco.library" xmlns:Exslt.ExsltCommon="urn:Exslt.ExsltCommon" xmlns:Exslt.ExsltDatesAndTimes="urn:Exslt.ExsltDatesAndTimes" xmlns:Exslt.ExsltMath="urn:Exslt.ExsltMath" xmlns:Exslt.ExsltRegularExpressions="urn:Exslt.ExsltRegularExpressions" xmlns:Exslt.ExsltStrings="urn:Exslt.ExsltStrings" xmlns:Exslt.ExsltSets="urn:Exslt.ExsltSets"
  exclude-result-prefixes="msxml
 umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes 
Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings 
Exslt.ExsltSets ">


<xsl:output method="xml" omit-xml-declaration="yes"/>

<xsl:param name="currentPage"/>
<xsl:variable name="bigW" select="700"/>
<xsl:variable name="bigH" select="700"/>
    
    
<xsl:template match="/">

  <xsl:if test="$currentPage/galleryalbum &gt; 0">
    <xsl:variable name="images" select="umbraco.library:GetMedia($currentPage/galleryalbum, 1)" />
    <xsl:if test="count($images/*) &gt; 0">
      <xsl:for-each select="$images/*">
   <xsl:if test="./umbracoFile != ''">



<a>
    <xsl:attribute name= "class">fancybox gallery</xsl:attribute>
    <xsl:attribute name= "rel">group</xsl:attribute>

      <xsl:choose>
         <xsl:when test="./umbracoWidth &lt; 700 and ./umbracoHeight &lt; 700">
      <xsl:attribute name= "href">
        <xsl:value-of select="./umbracoFile"/>
        </xsl:attribute>
      </xsl:when>
      <xsl:when test="./umbracoWidth &gt; ./umbracoHeight">
      <xsl:attribute name= "href">
        /umbraco/imageGen.aspx?image=<xsl:value-of select="./umbracoFile"/>&amp;width=<xsl:value-of select="$bigW"/>&amp;constrain=true
        </xsl:attribute>
      </xsl:when>
      <xsl:otherwise>
      <xsl:attribute name= "href">
        /umbraco/imageGen.aspx?image=<xsl:value-of select="./umbracoFile"/>&amp;height=<xsl:value-of select="$bigH"/>&amp;constrain=true
        </xsl:attribute>
      </xsl:otherwise>
    </xsl:choose>  
        <img src="/umbraco/ImageGen.ashx?image={./umbracoFile}&amp;height=120&amp;pad=true&amp;bgcolor=white" alt="{./ImgDescription}" title="{./ImgDescription}"/>    
      </a>
        </xsl:if>
      </xsl:for-each>
    </xsl:if>
  </xsl:if>

</xsl:template>

</xsl:stylesheet>

So there must be a similar way to call the size of the generated thumbnails - added to the XSLT file, but where and how???

is working on a reply...