[Gambas-user] how to use gb.map offline?

[Fabien Bodard]

Le lun. 30 janv. 2023 à 14:34, <roberto.premoli at tiscali.it> a écrit :

> Fabien/all,
> it is possible to create a list of POI (Point of interest) and activate
> them as request on the map?
> i mean, i will like to create my own list of POI, a list with coordinates,
> description, rates (maybe). Some as:
> 45.724824, 8.2606264,14z, "gasoline station", 4/10
> 48.724824, 8.4606263,14z, "Mc Donald", 1/10
> 38.824724, 68.2634606,12.83z, "barber shop", 5.4/10
> ecc ecc
> so as soon as i move on the map and in that tile there is that POI, it is
> shown.
> It it possible? if yes, how to do?
> Thanks,
> Roberto
>


Yes..

You can use the same way as you put the position

- add a poi layer

Load all the poi  by adding points
Maybe change the picture depending on the type

The point is shown if the map display is on it.

There is normally a mecanism that mask some points when they are too close

Do you want to display text too ?

As it is writted in gambas everything is doable. For example for my own
needs I've made a way to select points and drag it in a list.  (Without
changing the core of gmap)

By playing with inheritance you can add as many a feature you need. Like
I've done for Mappoint in the example. But for that you need to learn the
inner structure of gb.map.




>
>
>
>
> Il 29.01.2023 22:46 Fabien Bodard ha scritto:
>
>
>
> Le dim. 29 janv. 2023 à 19:42, <roberto.premoli at tiscali.it> a écrit :
>
>> Il 29.01.2023 17:10 Gianluigi ha scritto:
>>
>> > Il 29/01/23 16:18, Fabien Bodard ha scritto:
>> >
>> >> My bad
>> >> Just add 'export' keyword on top of the Mappoint class
>> >
>> > Hi Fabien, thank you, it works fine now
>> >
>> > Have a nice day
>> >
>> > Gianluigi
>>
>> Hi,
>> I confirm it run also on 3.15.2. I roamed around a while, than unplug
>> the network cable and the program used the image cached on ./cache/
>> directory when i came back to place already visited.
>> It works fine. The images occupy a lot of space but is not a problem to
>> store some giga of images. All is good.
>>
>> I have a question, not related to the topic but just a technical
>> curiosity: someone knows how openstreetmaps works? I mena, also
>> openstreetmaps store tons of image or the image are "dinamically
>> generated" starting from vector data and served on-the-fly to the
>> client?
>
> They store it
> But some wmts server generate on the fly. In fact it depend the type of
> tiles.
>
>> Roberto
>>
>>
>>
>>
>> VOUCHER CONNETTIVITÀ per P.IVA e PMI: internet a canone 0 per 48 mesi.
>> ATTIVA ORA
>>
>>
>> https://casa.tiscali.it/promo/?u=https://promozioni.tiscali.it/voucher_business/?r=TS00000A00025&dm=link&p=tiscali&utm_source=tiscali&utm_medium=link&utm_campaign=voucherbusiness&wt_np=tiscali.link.footermail.voucherbusiness.btb
>> ..
>>
>>
>>
>> ----[ http://gambaswiki.org/wiki/doc/netiquette ]----
>
>
>
>
> VOUCHER CONNETTIVITÀ per P.IVA e PMI: internet a canone 0 per 48 mesi.
> ATTIVA ORA
>
> https://casa.tiscali.it/promo/?u=https://promozioni.tiscali.it/voucher_business/
> <https://casa.tiscali.it/promo/?u=https://promozioni.tiscali.it/voucher_business/?r=TS00000A00025&dm=link&p=tiscali&utm_source=tiscali&utm_medium=link&utm_campaign=voucherbusiness&wt_np=tiscali.link.footermail.voucherbusiness.btb..>
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