[OSM-dev] Auto adding attribution to image creation.

[Dave F]

On 06/08/2019 12:26, Tom Hughes wrote:
> On 06/08/2019 12:04, Dave F via dev wrote:
>
>> A user has asked why the image creation tool under 'Share' couldn't 
>> automatically add an attribution. It would certainly save me a lot of 
>> email sending asking users to add it.
>
> If you mean the option 

I'm surprised your confused. I thought I was perfectly clear.

> that gives you an image based on the
> default rendering then the answer is that all that option does
> is to to a custom render using mapnik, and that render has
> no way to add an attribution.
>
>> Would it be much coding effort?
>
> Yes.
>
> I mean you can certainly do it, but it means writing a whole
> bunch of code to work out what font size to use then render
> some text and overlay it on the mapnik generated image.

There must be calculations performed to create the clipped image
  especially considering the Scale: option provided.
Inserting an image of the attribution into the corner of the map image 
at a defined percentage of its size can't add that much additional 
overheads,

There are plenty of 'image stamper' programs on the market which do similar.

>
> Then you need somebody to answer all the complaints when that
> text gets dropped over the top of something important.

Sorry, but that's a ridiculous argument. How many complaints are 
received about the main page map attribution?


DaveF