ImageRasterizer by Adrian Jones

Admin and front-end resizing and rasterizing of vector SVG images

ImageRasterizer

ProcessWire module for admin and front-end resizing and rasterizing of vector SVG images

###Requirements IMPORTANT: This module requires Imagemagick and the pecl imagick extension. For anything but simple SVGs, you must make sure imagemagick was compiled with a relatively recent version of rsvg (I know that 2.32.1 works well and presumably anything more recent should also be fine).

If you don't manage your own server and the results are not good, check with your host. If everything is set up correctly, the rendered PNGs will be "perfect" representations of the SVGs.

###How to use

You must add SVG as an allowed file type for an images field.

Check the module configuration for a variety of settings for both PNG and JPG output options. In particular be aware of the Rasterized Images Field selector:

  • If you choose "None" only the SVG will be stored in the images field. You can still access rasterized versions via the rasterize() method - see below for details.
  • If you choose 'Replace the source image thumbnail' it will replace the SVG with a rasterized version when viewing the thumbnails in the admin. This can significantly speed things up with complex SVG files.

Once the module configuration settings are completed:

  • Upload an SVG image and the module will create a rasterized version.
  • You need to save the page to see the rasterized version which can then be accessed via the API like any other image.
  • The module also adds a new method: rasterize() which can be called from your templates like:
$image->rasterize(200,0)->url
  • This method optionally resizes the vector version of the image and then rasterizes it so you can scale it infinitely and there will be no loss of quality. Make sure you point it to the svg version in your images field.

####Support Forum http://processwire.com/talk/topic/4632-image-rasterizer/

License


This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

(See included LICENSE file for full license text.)

Install and use modules at your own risk. Always have a site and database backup before installing new modules.

Twitter updates

  • ProcessWire 3.0.190 has 15 commits relative to 3.0.189 and contains a mixture of issue resolutions and feature additions. We’ll review these below, in addition to updates for the PageAutosave and ProFields Table modules— More
    3 December 2021
  • Great video by @jlahijani that demonstrates his ProcessWire page builder using ProFields Repeater Matrix, the new Page Autosave + Live Preview module and Uikit 3— youtube.com/watch?v=Rb5kiU…
    13 November 2021
  • More development on page automatic save this week, plus the addition of live preview— More
    12 November 2021

Latest news

  • ProcessWire Weekly #394
    In the 394th issue of ProcessWire Weekly we'll share the latest ProcessWire news and updates, including some highlights from the support forum, the latest weekly update from Ryan, and more. Read on!
    Weekly.pw / 27 November 2021
  • New Repeater and Repeater Matrix features
    This week we have some very useful new additions to both the core Repeater Fieldtype and the ProFields Repeater Matrix Fieldtype. This post covers all the details along with a couple of brief demonstration videos. 
    Blog / 22 October 2021
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