Meter2Feet: Difference between revisions
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you are correct there is a border condition with llRound I didn't see BTW your code didn't compile. MUTL is better then DIV |
Huney Jewell (talk | contribs) Your's didnt compile either, lol. And reciprocal value extended to guarantee for precision of result! Btw, I had checked my version by using LSLEditor, which compiled the code. |
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| Line 15: | Line 15: | ||
string Meter2Feet( float meter ) | string Meter2Feet( float meter ) | ||
{ | { | ||
string sign = ""; | |||
if (meter < 0) | |||
{ // Use only positive value to simplify the maths | |||
sign = "-"; | |||
meter = -meter; | |||
} | |||
float fraction = meter * 3.2808398950131233595800524934383; // Compute feet multiplying by reciprocal value | |||
integer feet = (integer)fraction; // of conversion constant 0.3048 for performance reasons | |||
fraction = (fraction - feet) * 12; // Compute inches | |||
integer inches = (integer)fraction; | |||
fraction = llRound((fraction - inches) * 16); // Compute 1/16 inches | |||
string strFraction = "\""; | |||
if (fraction != 0) // show fraction value only if not zero | |||
strFraction = " " + (string)((integer)fraction) + "/16" + strFraction; | |||
return (sign + (string)feet + "' " + (string)inches + strFraction); | |||
} | } | ||
</pre> | </pre> | ||
| Line 46: | Line 46: | ||
string Meter2Feet( float meter ) | string Meter2Feet( float meter ) | ||
{ | { | ||
string sign = ""; | |||
if (meter < 0) | |||
{ // Use only positive value to simplify the maths | |||
sign = "-"; | |||
meter = -meter; | |||
} | |||
float fraction = meter * 3.2808398950131233595800524934383; // Compute feet multiplying by reciprocal value | |||
integer feet = (integer)fraction; // of conversion constant 0.3048 for performance reasons | |||
fraction = (fraction - feet) * 12; // Compute inches | |||
integer inches = (integer)fraction; | |||
fraction = llRound((fraction - inches) * 16); // Compute 1/16 inches | |||
string strFraction = "\""; | |||
if (fraction != 0) // show fraction value only if not zero | |||
strFraction = " " + (string)((integer)fraction) + "/16" + strFraction; | |||
return (sign + (string)feet + "' " + (string)inches + strFraction); | |||
} | } | ||
default | default | ||
{ | { | ||
state_entry() | |||
{ | |||
llOwnerSay("Enter: [m]"); | |||
llListen(0, "", llGetOwner(), ""); | |||
} | |||
listen(integer _chan, string _str, key _id, string _msg) | |||
{ | |||
float meter = (float)_msg; | |||
llOwnerSay(Meter2Feet(meter)); | |||
} | |||
}</pre> | }}</pre> | ||
</div></div> | </div></div> | ||
{{LSLC|Examples|Meter2Feet}} | {{LSLC|Examples|Meter2Feet}} | ||
Revision as of 21:41, 12 September 2007
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Specification
string Meter2Feet( float meter )
{
string sign = "";
if (meter < 0)
{ // Use only positive value to simplify the maths
sign = "-";
meter = -meter;
}
float fraction = meter * 3.2808398950131233595800524934383; // Compute feet multiplying by reciprocal value
integer feet = (integer)fraction; // of conversion constant 0.3048 for performance reasons
fraction = (fraction - feet) * 12; // Compute inches
integer inches = (integer)fraction;
fraction = llRound((fraction - inches) * 16); // Compute 1/16 inches
string strFraction = "\"";
if (fraction != 0) // show fraction value only if not zero
strFraction = " " + (string)((integer)fraction) + "/16" + strFraction;
return (sign + (string)feet + "' " + (string)inches + strFraction);
}
Example
Trivial example to listen to any chat from the object owner for meter values and respond feet/inch value.
string Meter2Feet( float meter )
{
string sign = "";
if (meter < 0)
{ // Use only positive value to simplify the maths
sign = "-";
meter = -meter;
}
float fraction = meter * 3.2808398950131233595800524934383; // Compute feet multiplying by reciprocal value
integer feet = (integer)fraction; // of conversion constant 0.3048 for performance reasons
fraction = (fraction - feet) * 12; // Compute inches
integer inches = (integer)fraction;
fraction = llRound((fraction - inches) * 16); // Compute 1/16 inches
string strFraction = "\"";
if (fraction != 0) // show fraction value only if not zero
strFraction = " " + (string)((integer)fraction) + "/16" + strFraction;
return (sign + (string)feet + "' " + (string)inches + strFraction);
}
default
{
state_entry()
{
llOwnerSay("Enter: [m]");
llListen(0, "", llGetOwner(), "");
}
listen(integer _chan, string _str, key _id, string _msg)
{
float meter = (float)_msg;
llOwnerSay(Meter2Feet(meter));
}
}}