Hi Joe,

I'm sorry, I'm not familiar with AlternaTIFF, and I'm not familiar with it's capabilities... But I'm skeptical that you are going down the right road.

The idea of using an <object> HTML tag makes perfect sense if you're going to view it in a browser. But, can AlternaTIFF understand HTML?

Assuming that it can, are you sure you want to stream the TIFF file inside the <object> tag as a (base64 encoded) inline image? That's a kind of weird thing to do. Again, a browser would understand it (in an <img> tag) but would AlternaTIFF?

The normal way in a browser to have the file be transfered in two requests. The first one would request the HTML from the server (this can call a CGI, and the CGI can return the HTML.) The HTML would have a reference/URI that points to the image, and a new request would be made to get that image (in raw image format, not as base64 text). That second request could also potentially point to a CGI program. Assuming AlternaTIFF supports HTML at all, this is the scenario that I would expect would be most likely to work.

Using an <img> or <object> tag to refer to a URI, and then having that URI contain HTML (not just the image) seems very unlikely to work (even in a browser!) since those tags would be expecting the raw image file, not an HTML file. Right?


On 8/26/2011 2:51 PM, Joe Wells wrote:
Thank you for all of the responses.

My first task was to learn about Base64. I learned a lot from Scott
Klements (thank you!) article
http://systeminetwork.com/article/base64-built-ibm-i .

Since then I have tried several things. As previously mentioned,
we use AlternaTIFF to view our tiff images. Their documentation
suggests a number of methods to embed TIFF documents with HTML. At
the moment, the most promising seems to be the OBJECT tag. Their
example looks like this -

<object width=200 height=200
classid="CLSID:106E49CF-797A-11D2-81A2-00E02C015623">
<param name="src" value="tiffdocument.tif">
<param name="negative" value="yes">
</object>

Note: the value for CLASSID forces the browser to use the AlternaTIFF
viewer.

I then searched how to use Base64 with the OBJECT tag and came up
with this -

<object id="test" width=100% height=75%
classid="CLSID:106E49CF-797A-11D2-81A2-00E02C015623"
data="data:application/x-oleobject;base64, .......Base64
data.......... ">test2</object>

My problem is thast I am not sure that the encoding is properly
working. I searched for sites that would test Base64 data as well as
sample Base64 data - but I had no luck.

Any thoughts, comments, or suggestions?


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