Photo Map tip in QGIS 3 on windows

Question

How do you display a photo map tip in QGIS 3 on Windows?

As a new user I'm not sure if this is my lack of experience or a bug, so I've tried to simplify it as far as I can:

This is the contents of the Layer Display properties.

<div style="width:400;height:400">
<p>test</p>
<div><img src="C:\Local\aa.jpg" width="350" /></div>
</div>

and this is how it appears:

C:\Local\aa.jpg is real file I'm using to try to figure out what the problem is. What am I doing wrong?

There's a forward slash at the end of the file path that looks out of place to me.Try <img src="C:\Local\aa.jpg" width="350"> instead of <img src="C:\Local\aa.jpg" width="350" /> — csk, Mar 12 '18 at 19:19
That is for closing the img tag, which would be necessary in XHTML. I tried taking it out and it made no difference, thanks for the suggestion. — sandyscott, Mar 12 '18 at 19:32

Kazuhito · Accepted Answer · 2018-03-13 12:26:19Z

7

Will you add file:/// before the drive letter C: ?

<img src="file:///C:/Local/aa.jpg" width="350" />

answered Mar 13 '18 at 12:26

Kazuhito

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That fixed it, thank you! I'd previously tried the file:/// thing (and swapping the backslashes to slashes, but hadn't realized that you need 3 slashes, not 2. – sandyscott Mar 14 '18 at 12:29
1

Thanks @sandyscott glad it worked. Yes, me too, tried 2 slashes first, then three by luck. – Kazuhito Mar 14 '18 at 14:02
This helped me, too. 3 slashes are required for Windows systems. Linux paths already have one at the start. file:///C:\Users\username\my_photo.jpg, vs file:///home/username/my_photo.jpg. – Dr John A Stevenson Mar 11 '19 at 11:32
Maybe also worth mentioning is that, on Windows at least, it doesn't seem to care about the direction of slashes. I've just tested it with both variations and a combination(ie c:\gis\photos/2019-09-24 12.46.14.jpg works!). That is the way the ImportPhotos plugin formats it in QGIS 3.8.1 – marcp Sep 25 '19 at 21:48

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nmtoken · Accepted Answer · 2018-03-13 08:43:52Z

1

In HTML the way of adding a hint to an image is to use an alt attribute on the img tag.

Like:

<img src="C:\Local\aa.jpg" width="350" alt="Tip on test image" />

It is up to the client that parses the HTML whether or not it displays the text.

answered Mar 13 '18 at 8:43

nmtoken

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This doesn't work in Map Tip (on my system at least) – sandyscott Mar 14 '18 at 12:39

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2 Answers 2