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fix a problem of precision loss.

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the previous code on reading floating point number will cause a precision loss on centimeters, found it when using.
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田至伟 2016-11-22 23:38:59 +08:00 committed by GitHub
parent 6ee60833bc
commit 24467d76fd
1 changed files with 7 additions and 10 deletions
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9
stream.js
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@ -131,17 +131,14 @@ var win = self,
t = this, t = this,
val = 0.0; val = 0.0;
if(numBytes > 4){ if(numBytes > 4){
var i = Math.ceil(numBytes / 4); var buff=[]
while(i--){ var o = t.offset,
var buff = [], j = o + numBytes;
o = t.offset,
j = o + (numBytes >= 4 ? 4 : numBytes % 4);
while(j > o){ while(j > o){
buff.push(t.readByteAt(--j)); buff.push(t.readByteAt(--j));
numBytes--; numBytes--;
t.offset++; t.offset++;
} }
}
var s = new Gordon.Stream(fromCharCode.apply(String, buff)), var s = new Gordon.Stream(fromCharCode.apply(String, buff)),
sign = s.readUB(1), sign = s.readUB(1),
expo = s.readUB(numEBits), expo = s.readUB(numEBits),