p398765t - 経済統計練習帳

var point=new Array();
var lon=new Array();
var lat=new Array();
var number;
 
function sample() {
 
        var query = "SELECT lon,lat,v FROM " +
            '1BKgErwl7YQsXR0SYoLfE8MDurLLzfVmpL8EeuLqo';
        var encodedQuery = encodeURIComponent(query);
 
        var url = ['https://www.googleapis.com/fusiontables/v1/query'];
        url.push('?sql=' + encodedQuery);
        url.push('&key=AIzaSyAH0WCAXRIdHdbI-6bnMSN4kVDDZZmGyqY');
        url.push('&callback=?');
 
 
 
        $.ajax({
          url: url.join(''),
          dataType: 'jsonp',
          success: function (data) {
            var rows = data['rows'];
 
              sx=0;
 
for (var i in rows) {
var x1 = rows[i][0];
var x2 = rows[i][1];                  
var x3 = rows[i][2];                  
sx=sx+1;
lon[sx]=x1;
lat[sx]=x2;
point[sx]=x3;
}
 
number=sx;
 
paint();              
 
}
});
 
}
 
function paint(){
 
var sub3=new svgpaint();
 
maxy=0;
maxx = 0;
minx = 8888;
miny = 9999;
 
for (s = 1; s < number + 1;s++ ){
if(lon[s]>maxy)maxy=lon[s];    
if(lat[s]>maxx)maxx=lat[s];    
if(lon[s]<miny)miny=lon[s];    
if(lat[s]<minx)minx=lat[s];    
}
 
    str = "<svg width=\"500\" height=\"500\">";
for(s=1;s<number+1;s++){
    y1 = (500*(lon[s]-miny)) / (maxy-miny);
    x1 = (500*(lat[s]-minx)) / (maxx-minx);
str=str+sub3.rect(x1,500-y1,2,2,"blue");
} 
 
str=str+"</svg>";
 
$("#memo").html(str);   
 
}