"${zoom}" prints nothing

[jpduval2008]

I would like to print the length of the scale using zoom to check the zoom level.

The zoom function can't be used for the value of the label property of a text OSD.

Here is the test case :

<osd enabled="yes" type="scale" x="0" y="64" w="360" h="16" use_overlay="1" font_size="500" text_color="#000000" font_color="#000000"

background_color="#000000FF"/>

<osd enabled="yes" type="text" x="360" y="64" w="120" h="16" label="${zoom}" font_size="250" font_color="#FFFFFF"

text_color="#FFFFFF" background_color="#000000FF" osd_configuration="1"/>

[korrosa]

I'm confused - ${zoom} shouldn't work, because it isn't implemented. Have you got information otherwise?

[jpduval2008]

I just read and try to apply what is written into the documentation. See : ​http://wiki.navit-project.org/index.php/On_Screen_Display

My purpose is just to write the mening of the scale i.e. 50 m, 100 m, 1 Km, etc. If you have any other idea that decoding the zoom level, I will appreciate.

[korrosa]

That wiki page doesn't mention "${zoom}". However, there should be a figure written underneath the horizontal line of the scale OSD which shows the scale. What device are you using?

[jpduval2008]

1) See at the end of the page of the wiki, "zoom" is quoted as a function for command. And I would like to use it into the value of a label of a text.

2) I have no figure underneath the horizontal line. My device is Motorola Defy.

[korrosa]

OK, I see how it can be mis-construed. Those attributes are for changing the zoom levels. As you've found out, you can't display the zoom level as a text value.

The scale not showing underneath sounds like a bug. My line in navit.xml is as follows:

<osd enabled="yes" type="scale" x="-90" y="290" font_size="150" w="100" h="30" align="0"/>

Could you share yours navit.xml line? Perhaps the font_size attribute is important? We've had a report before of someone on an Android phone not seeing the scale value on the OSD, so it'd be great if we could confirm this in this ticket.

[jpduval2008]

Here is the extract of my navit.xml :

<osd enabled="yes" type="scale" x="0" y="64" w="360" h="64" use_overlay="1" font_size="150" text_color="#FFFFFF" font_color="#FFFFFF" background_color="#000000FF" osd_configuration="1"/>

I tried to change colors with no success ; to increase the width and the height with no success.

I use metric units ; not imperial. It may be important.

[usul]

So what is the answer to this ticket?

• Fixing docs to be less confusing
• Implementing a zoom variable (would be usefull for designers as me)
• Nothing at all

[http://wiki.navit-project.org/index.php/user:jkoan]

This ticket was pushed back in order to bring 0.5.1 out soon.