[Zope] Generating Graphs on the Fly

[Laurie Nason]

Thanks David - I got this to work - I passed in my python dictionary into
the image as a string and then did an eval() on it to get it back into
dictionary form. Worked like a charm! Still a few bugs to sort out though!

Laurie

-----Original Message-----
From: zope-admin@zope.org [mailto:zope-admin@zope.org]On Behalf Of David
Burton
Sent: Friday, May 17, 2002 4:36 AM
To: Laurie Nason
Cc: zope@zope.org
Subject: Re: [Zope] Generating Graphs on the Fly


You can pass parameters to meth_1 in an image tag using the query string
e.g.
<img src="meth_1?firstval=<dtml-var firstval
missing="1">&secondval=<dtml-var secondval missing="Test"">

The values passed in this method will appear as normal in the REQUEST
namespace for meth_1.

The values will all be string values, but you can perform the necessary
conversions from meth_1.

Hope this helps,
David Burton

16/05/2002 21:22:58, "Laurie Nason" <lnason@bcm.tmc.edu> wrote:

>Hi all,
>
>Here's the problem,
>
>I want to use a python site-package called pychart to generate graphs for
my
>laboratory.
>
>If I provide all the parameters required internally an the External Method,
>I can get the graph to be produced.
>To generate the graph I have a DTML Method (meth_1) which calls
>my_graph_external_method.
>To use my graph all I have to do is: <img src="meth_1">.
>
>But, what I want to do is to be able to pass in parameters to the external
>method, i.e. graph type, data, labels etc. so that the users can customize
>their graphs. However I can't pass in any parameters to meth_1.
>
>I don't really want to make the process 2 step by creating the file with
one
>method and then reading it with another.
>
>Anyone any ideas?
>
>Laurie
>
>PS Scripts available if they will help
>
>Laurie Nason
>Scientific Programmer
>National Center for Macromolecular Imaging
>Houston TX USA
>
>
>
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