Getting a Google MAP

[William Prothero]

Ok, its a bit more complicated. After my initial high at thinking the problem was solved (rushing to a haircut appointment before looking carefully), I noticed that the returned data from Mike’s reverse geocoding URL didn’t change with the zoom level. So apparently, it’s only applied to the stated location. The reverse geo lookup finds a city or address and the “bounds” elements don’t give the lat/lon values at the corner of the image.

I’m fiddling with this, and I’ve got the link (somewhat incomplete derivation) of how to calculate the corner lat/lons, so I’ll try that next. I wish there was a google call I could make that would give me this info, but I can’t find it.

Best,
Bill

> On Apr 28, 2017, at 1:49 PM, William Prothero via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> I’m willing. Hermann has been generous with good ideas too.
> Best,
> Bill
> 
>> On Apr 28, 2017, at 1:45 PM, Mike Bonner via use-livecode <use-livecode at lists.runrev.com> wrote:
>> 
>> If you ever get down to the middle of nowhere new mexico, I'll take you up
>> on the lunch offer.  :) Think others mentioned the same api though, so
>> there might be lunches all around.
>> 
>> 
>> On Fri, Apr 28, 2017 at 2:41 PM, William Prothero via use-livecode <
>> use-livecode at lists.runrev.com> wrote:
>> 
>>> Mike:
>>> OMG, I LOVE YOU! Fantastic, this is just what I need. I hope I meet you
>>> some day so I can buy you dinner. Let me know if you get by Santa Barbara,
>>> or Portland area.
>>> 
>>> Best,
>>> Bill
>>> 
>>> 
>>>> On Apr 28, 2017, at 10:56 AM, Mike Bonner via use-livecode <
>>> use-livecode at lists.runrev.com> wrote:
>>>> 
>>>> If you do a second call to the geocode api you can get the info you need.
>>>> 
>>>> https://maps.googleapis.com/maps/api/geocode/json?address=
>>> Berkeley,+CA&zoom=14&size=400x400
>>>> 
>>>> There appear to be 2 location sections.  One contains the bounds of the
>>>> request, the other contains the bounds of the viewport IE zoom level 14,
>>> at
>>>> 400x400
>>>> 
>>>> i haven't really tested much other than to see what kind of results come
>>>> back, but hopefully this will get you to where you want to go.
>>>> 
>>>> I also saw the following..
>>>> https://gis.stackexchange.com/questions/46729/corner-
>>> coordinates-of-google-static-map-tile
>>>> which is very interesting. The problem being you would still need the
>>>> center point as a starting position, then you can calculate the corners
>>>> based on the zoom factor.
>>>> 
>>>> On Fri, Apr 28, 2017 at 9:42 AM, prothero--- via use-livecode <
>>>> use-livecode at lists.runrev.com> wrote:
>>>> 
>>>>> Thanks for the openstreetmap link. I'm really liking the Google maps
>>>>> option since my app is being developed for free distribution to
>>> educators
>>>>> and I am not particularly interested in streets. The satellite or
>>> terrain
>>>>> views are what I want.
>>>>> 
>>>>> Now all I have to do is figure out how to get the lat/Lon values at the
>>>>> corners. Then I'll be all set.
>>>>> 
>>>>> If anybody else is interested in what .I'm doing, I'll be glad to share
>>>>> code.
>>>>> 
>>>>> Best,
>>>>> Bill
>>>>> 
>>>>> Best,Mike:
>>>>> Bill
>>>>> 
>>>>> William Prothero
>>>>> http://es.earthednet.org
>>>>> 
>>>>>> On Apr 28, 2017, at 2:22 AM, hh via use-livecode <
>>>>> use-livecode at lists.runrev.com> wrote:
>>>>>> 
>>>>>> Not to forget related to (static) maps, especially as you can have
>>>>>> them from there also as SVG or 'true' PDF (not embedded PNG only):
>>>>>> 
>>>>>> https://www.openstreetmap.org
>>>>>> 
>>>>>> For exporting as HTML link or as an "image" (JPG, PNG, SVG, PDF)
>>>>>> see https://wiki.openstreetmap.org/wiki/Export
>>>>>> 
>>>>>> In short:
>>>>>> Don't use the Export button at top/left (which is for raw map
>>>>>> data) but _the sharing link at right_ that opens a prefs box.
>>>>>> 
>>>>>> 
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>>>>> 
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