circle - 経済統計練習帳

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
 
<script>
 
function sample(){
 
bx=250;
by=250;
var timer;
var delay = 50;
 
var loop = function () {
 
by=by+5;
 
if(by>500)by=0; 
 
paint();
 
 
 
    clearTimeout(timer);
    timer = setTimeout(loop, delay);
}
 
loop();
 
 
}
 
function rect(x1,y1,w1,h1,col){
var strx;
strx="<rect x="+chop(x1)+"\" y="+chop(y1)+"\" width="+chop(w1);
strx=strx+"\" height="+chop(h1)+" fill="+chop(col)+"/>";
return strx;
}
 
 
function chop(strp){
var strx;
strx="\""+strp+"\"";
return strx;
}
 
 
function paint(){
 
str="<svg width=\"500\" height=\"500\">"; 
str=str+circle(bx,by,30,"red");
str=str+"</svg>";
 
$("#memo").html(str);   
 
}
 
 
function circle(x1,y1,r,col){
var strx;
strx="<circle cx="+chop(x1)+"\" cy="+chop(y1)+"\" r="+chop(r)+" fill="+chop(col)+"/>";
return strx;
}
 
</script>