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- const
- width=9910;
- height=7476;
-
- var TileGroup:integer;
- z:integer;
- i:integer;
- cur_width,cur_height:integer;
- maxZoom:integer;
-
- function TilesAtZoom(z:integer):integer;
- begin
- result:=(1+trunc(width/(256*intpower(2,(MaxZoom-z)))))*(1+trunc(height/(256*intpower(2,(MaxZoom-z)))));
- end;
-
-
- function getTileCount(zoom:integer):integer;
- var i:integer;
- begin
- Result:=0;
- for i:=1 to zoom do Result:=Result+TilesAtZoom(i);
- end;
-
-
- begin
- i:=1;cur_width:=0;
- while cur_width<width do
- begin
- cur_width:=round(256*intpower(2,i));
- i:=i+1;
- end;
- MaxZoom:=i;
-
-
- i:=1;cur_width:=0;
- while cur_width<height do
- begin
- cur_width:=round(256*intpower(2,i));
- i:=i+1;
- end;
- if i>MaxZoom then MaxZoom:=i;
-
-
-
- z:=GetZ-1;
-
- tilegroup:=(getTileCount(z) +GetX +GetY*(1+trunc(width/(256*intpower(2,(MaxZoom-z-1)))))) div 256;
- ResultURL:=GetURLBase+inttostr(tilegroup)+'/'+inttostr(z)+'-'+inttostr(GetX)+'-'+inttostr(GetY)+'.jpg';
- end.
-
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