Map Widget - how does it actually work?

Alex Tweedly alex at tweedly.net
Mon May 25 20:39:15 EDT 2020


Well, the big advantage of widgets is that you can look at the source 
code. As it says in the Livecode Lesson ( 
http://lessons.livecode.com/m/4071/l/1005132-how-do-i-modify-a-livecode-widget 
),

> What do you do if a LiveCode widget is missing a property or message 
> you need?
>
> The source code for all the widgets provided 'out of the box' is 
> accessible so you can take those widgets as a base and improve and 
> extended them as you need.
>
Unfortunately, there is a non-obvious meaning to "out of the box" - what 
it means is "source code for all the widgets provided 'out of the box' 
*in the community version* is accessible ..."

So, sadly, you can't just go look at the source code to find out what 
you need.

However, in the dictionary under "Guide" you can find some more info / 
example about the map widget. In particular, it defines the format used 
for  region, coordinates, span and markers - which is probably all that 
you need (I think all the others parameters in the API are booleans).

Disclaimer: I have never used the map widget - everything I say here is 
taken at face value from the doc and the visible files within the widget 
folder of 9.6.0(rc1)

Alex.

On 25/05/2020 21:57, Graham Samuel via use-livecode wrote:
> Back to my problems with inadequate documentation on widgets. The Map widget is probably very powerful, but the Dictionary entry simple tells you the names of the parameters. I can’t work out anything about the format of the data you can feed in, or what it looks like when it comes out. There isn’t even enough info to start a meaningful experiment, IMHO.
>
> Does anyone know of a source of helpful documentation on this? I am as ever interested in the iOS version.
>
> Thanks for any info.
>
> Graham
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