Google Maps

This sample shows how the SWAN GoogleMap wrapper retrieves markers dynamically from the database server according to the GoogleMap zoom level.
The table at the right shows the available markers with their visible zoom thresholds.
Center the Tampico marker and Zoom it. At zoom level 10, two markers will be visible. At zoom level 12, four new ones will be visible.
Markers of zoom level 10 are visible also for Guadalajara, Monterrey and McAllen cities.
Markers loaded are kept cached but hidden when the GoogleMap zoom level is lower than the marker zoom threshold.

Zoom Information

Database Locations

#
Name
Category
Zoom
1
Altamira
Location
10
2
Ciudad Madero
Location
10
3
Club Campestre Tampico
Place
12
4
Club Regatas Corona
Place
12
5
DF
City
5
6
Guadalajara
City
5
7
Guadalupe
Location
10
8
McAllen
City
5
9
Mercedes
Location
10
10
Mission
Location
10
11
Monterrey
City
5
12
Parque Metropolitano
Place
12
13
Pharr
Location
10
14
Puente Tampico
Place
12
15
San Nicolás
Location
10
16
San Pedro Garza García
Location
10
17
Tampico
City
5
18
Tlaquepaque
Location
10
19
Tonalá
Location
10
20
Zapopan
Location
10