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Thread tagged as: Question, Field-Types

Can't scale images to a required maximum height

Hello,

I can't scale my images to a required maximum height (in this example 400 px). When I upload them into my Perch testpage, I see the correct dimensions next to the image field: 710 x 400 px @ 8KB. But when I'm refreshing the page, I don't see the correct result. I've tried it also without the crop="true". This is the testpage: http://studiowolf.be/test/autolusso/autolusso-exclusive-cars.php

<perch:repeater id="images" label="Images">
<li><img src="<perch:content type="image" id="image" label="Image" height="400" crop="true" />" alt="<perch:content type="text" id="alt" label="Description" />" /></li>
</perch:repeater>
Perch: 2.8.34, PHP: 7.0.13, MySQL: mysqlnd 5.0.12-dev - 20150407 - $Id: 241ae00989d1995ffcbbf63d579943635faf9972 $, with PDO
Server OS: Linux, cgi-fcgi
Installed apps: content (2.8.34), assets (2.8.34), categories (2.8.34)
App runtimes: <?php $apps_list = array( 'content', 'categories', );
PERCH_LOGINPATH: /test/autolusso/perch
PERCH_PATH: /home/studiowolf/domains/studiowolf.be/public_html/test/autolusso/perch
PERCH_CORE: /home/studiowolf/domains/studiowolf.be/public_html/test/autolusso/perch/core
PERCH_RESFILEPATH: /home/studiowolf/domains/studiowolf.be/public_html/test/autolusso/perch/resources
Image manipulation: GD
PHP limits: Max upload 64M, Max POST 64M, Memory: 128M, Total max file upload: 64M
F1: 6a33f95eca3667f9e0c39bf5ca2980fe
Resource folder writeable: Yes
SCRIPT_NAME: /test/autolusso/perch/core/settings/diagnostics/index.php
REQUEST_URI: /test/autolusso/perch/core/settings/diagnostics/
DOCUMENT_ROOT: /home/studiowolf/domains/studiowolf.be/public_html
HTTP_HOST: studiowolf.be
Frederic Desauw

Frederic Desauw 0 points

  • 2 years ago
Drew McLellan

Drew McLellan 2638 points
Perch Support

What size is the source image? Perch doesn't scale images up, only down.

There are different sizes, 99% is bigger. eg 1920x1080px, 1140x642px, 650x836px, 3264x2448, ...

Drew McLellan

Drew McLellan 2638 points
Perch Support

In which case, that's no problem. Perch will scale the image down to 400px high.

Yes, but if you look at the image slider in this page: http://studiowolf.be/test/autolusso/autolusso-exclusive-cars.php The top image slider is coded in html. The second and third with Perch. You can see the second or third image changes in height a lot...

Drew McLellan

Drew McLellan 2638 points
Perch Support

Both the images in the third slider are 400px tall, which is what you've asked Perch for.

Something in your front-end code is scaling the image for display in the browser. The file is the correct height.

CSS is indeed telling width=100%. If I drop this, the image slider doesn't fill up the whole space.

Drew McLellan

Drew McLellan 2638 points
Perch Support

Right, but that's down to your front end code, so you'll need to find a solution. It's not something I can help with.