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<?php
function truncate($number, $precision = 0) {
// warning: precision is limited by the size of the int type
$shift = pow(10, $precision);
return intval($number * $shift)/$shift;
}
$link = mysql_connect ("localhost", "root", "root123");
mysql_select_db ("geoslam");
$sql = "select * from tblPositions order by PositionId asc";
$result = mysql_query($sql);
echo("<pre>");
$i = 0;
$id = 0;
$ref= 1;
while ($row = mysql_fetch_assoc($result)){
if(($row['PositionId'] - $id) > 1000){
echo("\n");
$ref= 1;
$i = 0;
$id = $row['PositionId'];
}
if($i == 0 && (($row['PositionId'] - $id) > 10) && $X != $X1){
$X1 = truncate($row['X'],1);
$Y1 = truncate($row['Y'],1);
$Z1 = truncate($row['Z'],1);
}
$X = truncate($row['X'],1);
$Y = truncate($row['Y'],1);
$Z = truncate($row['Z'],1);
$i++;
if($i > 6){
if($X == $X1 && (($row['PositionId'] - $id) > 30) ){
echo("REF_".$ref."_".$row['PositionId']."\t".$row['X']."\t".$row['Y']."\t".$row['Z']."\n");
$id = $row['PositionId'];
$ref++;
}
$i = 0;
}
}
echo("</pre>");
?>