Hi,
I have been calling Google maps API in Qlikview for the past year, and it was working fine. However, recently when i reload my data, the map is unable to be displayed (blank).
Please help! As the mapping is important in my course of work. Thanks!
Below is my script:
// Google Maps in QlikView
// V0.85.2 - October 1st 2008 © Copyright QlikTech International AB 2008 / AES
// Google Maps Key
// get a key here http://code.google.com/apis/maps/signup.html
gmap_key = 'AIzaSyBvmmnBumwuXqDjJxhz7aQFqhUfi_hcMJc';
max_zoom_level = 17; //maximum value 17
// Variables required for calculating map
// No need to change these
var_pi180= '=pi()/180';
var_lat_offset= '0';
var_long_offset='0';
var_mc2= '=256*pow(2,$(var_zoom))';
var_mc1= '=256*pow(2,($(var_zoom)-1))';
var_mid_lat= '=min(latitude)+(1+var_lat_offset)*((max(latitude)-min(latitude))/2)';
var_mid_long= '=min(longitude)+(max(longitude)-min(longitude))/2';
var_zoom= '=max(aggr(if(max( round(256*pow(2,(_zoom_level -1)))+( longitude *((256*pow(2,_zoom_level ))/360)) )-min( round(256*pow(2,(_zoom_level -1)))+( longitude *((256*pow(2,_zoom_level ))/360)) ) <map_size_x AND max((256*pow(2,(_zoom_level-1)))+((0.5*log((1+(sin((latitude)*pi()/180)))/(1-(sin((latitude)*pi()/180)))))*((-256*pow(2,_zoom_level))/(2*pi()))))-min((256*pow(2,(_zoom_level-1)))+((0.5*log((1+(sin((latitude)*pi()/180)))/(1-(sin((latitude)*pi()/180)))))*((-256*pow(2,_zoom_level))/(2*pi()))))<map_size_y,_zoom_level,1),_zoom_level))';
var_maptype= '=if(isnull(only(maptype)),fieldvalue( '&chr(39)&'maptype'&chr(39)&', 1 ),maptype)';
map_size_x= '640';
map_size_y= '400';
SET HidePrefix='_' ;
// Field required for calcualting best zoom level
_zoom_level:
Load RecNo( ) as _zoom_level autogenerate(max_zoom_level);
maptype:
LOAD * INLINE [
maptype
roadmap
mobile
satellite
terrain
hybrid
];
Data:
LOAD * INLINE [
POD,Index,GDP_PPP_M, latitude, longitude
Nagoya, 11111, 111111, 35.090622, 136.878141
Laem Chabang, 11111, 22222, 13.067392, 100.903845
Cai Mep, 2222, 22222, 10.543745, 107.028514
Kaohsiung, 3333, 33333, 22.599441, 120.288098
Xiamen, 4444, 44444, 24.491402, 118.082175
Hongkong, 55555, 55555, 22.305987, 114.169549
Yantian, 6666, 66666, 22.576286, 114.265590
