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Re: problem dynamically adding svg

by Andreas Neumann :: Rate this Message:

Hi Michel,

see

http://www.carto.net/papers/svg/geturlxmlhttprequest/index.svg

for a very simple example.

The corresponding php code looks like follows:

<?php
header('Content-type: text/xml');
$currentY = $_GET['currentY'];
print '<g xmlns="http://www.w3.org/2000/svg">'."\n";
print "\t".'<text x="50" y="'.$currentY.'" font-size="15">'.date("M
d Y H:i:s",time()).'</text>';
print "</g>\n";
?>

--------

it is important that the group that is appended has the xmlns
attrribute set to svg, if you add svg directly.

Also, note the "content-type" header, which should be provided.
Although it is my believe that this is not necessary if you use my
object, since I use the line
this.xmlRequest.overrideMimeType("text/xml"); to override whatever
the server sends as content-type (don't know if that actually really
works?).

All the best,
Andreas

--- In svg-developers@..., "pilatfr" <pilat@w...> wrote:

>
> I find a solution if objects are in svg with complete header
> <svg version="1.1"
> baseProfile="full"
> xmlns="http://www.w3.org/2000/svg"
> xmlns:xlink="http://www.w3.org/1999/xlink"
> xmlns:ev="http://www.w3.org/2001/xml-events"
> ....
> objects
> </svg>
>
> Objects are draw and have correct URI for namespace in DOM

Inspector
>
> but it's heavy solution for single object to add ....
>
> Michel
>
>
> --- In svg-developers@..., "pilatfr" <pilat@w...>
wrote:
> >
> > > You get back a ready to use XML node that you can either
append

> to
> > > the DOM (if SVG compatible) or parse per script.
> >
> > I try this method to add widgets on user request .... but
> > * objects are not draw ...
> > * I cannot acceed objects to modify properties
> > * objects are in DOM ( DOM inspector ) but URI for namespace is
> empty
> >
> > How give svg namespace and see this objects?
> >
> > Michel
> >
> > PS I know that I can load this widgets at begining and show/hide
> > them ... but as I have complicated widgets as filesystem or
> more ...
> > I prefer load them on request and remove them after using
> >
> > --- In svg-developers@..., "Andreas Neumann"
> > <neumann@k...> wrote:
> > >
> > > in which SVG viewer/implementation?
> > >
> > > ASV and Batik, e.g. don't support XMLHttpRequest. They support
> > > getURL(). In order to support all of the viewers you must fork
> your
> > > code and see which method is available. You can write a helper
> > > object or function for this.
> > >
> > > http://www.carto.net/papers/svg/resources/helper_functions.js
> e.g.
> > > has a getXMLData object that you could use for that purpose.
> > >
> > > In order to use it, you can write the following code:
> > >
> > > var myGetXMLObj = new getXMLData(url,callBackFunction);
> > > myGetXMLObj.getData();
> > >
> > > You get back a ready to use XML node that you can either

append
> to
> > > the DOM (if SVG compatible) or parse per script.
> > >
> > > I don't know how well it works with thousands of elements.
Many
> of
> > > the current SVG viewers might not be fast enough to process
huge

> > > amounts of data.
> > >
> > > Andreas
> > >
> > > --- In svg-developers@..., "david_bigd42"
> <mumrah@g...>
> > > wrote:
> > > >
> > > > Here is my problem. I have a static svg file, and at various
> > times
> > > i
> > > > will need to add additional svg to this document. I can do

this
> > > for a
> > > > small number of elements with no problem via the
> createElementNS,
> > > > setAttribute, and appendChild methods. But now i need to add
a

> > few
> > > > thousand elements at a time.
> > > >
> > > > I use and xmlhttp (ajax) transfer to get the new svg. The
> server
> > > > returns valid svg, and when i try to append the
> > > xmlhttp.responseXML to
> > > > the svg document, i get a type mismatch error thrown.
> > > >
> > > > Any ideas?
> > > >
> > >
> >
>

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