Hello,
I'm trying to create an application using Google Maps and I have a table that has customer data with Zip Code and a table joining by Zip Code has latitude and longitude at the street and block level that I picked up from the Census Bureau. I formatted the file into a .csv file and when I load into the script, the map appears as data points in Antarctica, when it should be in the U.S.
I formatted the latitude and longitude as text so they would not sum up, but I'm not getting the correct data points. My map script is as such:
-- I commented out the Google Map Key since I don't think we need one anymore:
// Google Maps Key
// get a key here http://code.google.com/apis/maps/signup.html
//key for my email: AIzaSyAIB-WFDEAtfLNwDAhvgd0JPxaPOYvDgj4
// number of seconds to wait for a URL datasource
set OpenUrlTimeout=10;
//gmap_key = 'AIzaSyCd3LDYwNeOvyk-V_JtbMvI9OH4vVQ7nGc';
max_zoom_level = 12; //maximum value 17
// Variables required for calculating map
// No need to change these
var_pi180= '=pi()/180';
var_lat_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= '400';
map_size_y= '400';
//var_maptype = '=if(isnull(only(maptype)),fieldvalue( '&chr(39)&'maptype'&chr(39)&', 1 ),maptype)';
vMinXaxis = ' (256*pow(2,((var_zoom)-1)))+((var_mid_long)*((256*pow(2,(var_zoom)))/360))-(def_map_size*0.5)';
vMaxXaxis = '((256*pow(2,((var_zoom)-1)))+((var_mid_long)*((256*pow(2,(var_zoom)))/360))+(def_map_size*0.5))';
vMinYaxis = '((256*pow(2,((var_zoom)-1)))+((0.5*log((1+(sin((var_mid_lat)*pi()/180)))/(1-(sin((var_mid_lat)*pi()/180)))))*((-256*pow(2,(var_zoom)))/(2*pi())))+(def_map_size*0.5))';
vMaxYaxis = '((256*pow(2,((var_zoom)-1)))+((0.5*log((1+(sin((var_mid_lat)*pi()/180)))/(1-(sin((var_mid_lat)*pi()/180)))))*((-256*pow(2,(var_zoom)))/(2*pi())))-(def_map_size*0.5))';
SET HidePrefix='_' ;
// Field required for calcualting best zoom level
_zoom_level:
Load RecNo( ) as _zoom_level autogenerate(max_zoom_level);
//inline load for various map types
maptype:
LOAD * INLINE [
maptype
roadmap
mobile
satellite
terrain
hybrid
];
In the Numbers part of the map, I have this in the dynamic image section:
='http://maps.googleapis.com/maps/api/staticmap?center=' &
num(var_mid_lat, '##############', '.', ',' ) & ',' &
num(var_mid_long, '##############', '.', ',' ) &
'&zoom='& $(var_zoom) &
'&maptype='& (var_maptype) &
'&size=400x400' &
'&sensor=false'
and I have the map in focus in each axis max/min:
(256*pow(2,($(var_zoom)-1)))+( var_mid_long *((256*pow(2,$(var_zoom)))/360)) -round(map_size_x/2)
Is there anything in the map that I'm missing that will help focus the data to the correct lat/lon?
Thanks
Neal
