Copy a jqplot chart image into a separate resource.

Revo 2.5.1-pl

I have a resource that loads jqplot - http://www.jqplot.com/ and generates a chart from data stored in my custom tables. Jqplot has a feature that will generate an image (png) on the fly and display it in a div. All working fine.

I would now like to be able to display that image in a resource in a new window which will be converted to a pdf using pdfresource (installed and working fine).

I've tried:


the new window opens with Hello world but is overwritten by the pdf conversion - obviously cus modx doesn't know I'm passing data to printchart.html.

I suspect I will have to save the image then load it into printchart.html but I really want to do it on the fly (with jquery???).

I stumbled across symlinks but I haven't got my head round that and wouldn't have a clue how to go about it.

Does any one have any advice, suggestions or pointers on how I can do this please?

Thanks in anticipation

If the image is saved, you should be able to just forward to printchart.html and put a snippet in the content section of that page that will create the output you want.

Hi BobRay - thanks for the reply

I didn't want to go down the route of saving a physical copy of the image on the server.

I figured out how to pass the encoded string by creating a form in jqplot function that generates the image. I can now post it as a hidden form element and pick it up on a new resource in modx. I have a snippet the grabs the posted element, sets the headers for png and displays the image in an img tag. Works a treat
However - when I set the resource to convert to pdf on the fly using PDFResourse it breaks and doesn't display as a pdf. It shows a page with a blank image.

I now need to look into PDFResource................... onwards and upwards.