OsApproxEquals

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}
 
}
 
</source>
 
</source>
 +
'''Compare two floats with margin'''
 +
<source lang="lsl">
 +
//
 +
// osApproxEquals Script Exemple
 +
// Author: djphil
 +
//
 +
 +
float margin = 0.2;
 +
integer switch;
 +
 +
default
 +
{
 +
    state_entry()
 +
    {
 +
        llSay(PUBLIC_CHANNEL, "Touch to see osApproxEquals usage.");
 +
        llSay(PUBLIC_CHANNEL, "This exemple compare two floats with a margin of " + (string)margin);
 +
    }
 +
 +
    touch_start(integer number)
 +
    {
 +
        float fa = 1.000000;
 +
        float fb = 1.000001;
 +
       
 +
 +
        if (switch =! switch)
 +
        {
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            fb = 1.000001 + margin;
 +
        }
 +
 +
        llSay(PUBLIC_CHANNEL, "The float \"fa\" value is " + (string)fa);
 +
        llSay(PUBLIC_CHANNEL, "The float \"fb\" value is " + (string)fb);
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        llSay(PUBLIC_CHANNEL, "The margin value is " + (string)margin);
 +
 +
        // On Xengine use if (osApproxEquals(a, b) == TRUE)
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        if (osApproxEquals(fa, fb, margin))
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        {
 +
            llSay(PUBLIC_CHANNEL, "The values fa and fb are almost equal.");
 +
        }
 +
 +
        else
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        {
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            llSay(PUBLIC_CHANNEL, "The values fa and fb are not almost equal.");
 +
        }
 +
    }
 +
}
 +
</source>
 +
 
|additional_info=Implemented November 20, 2018
 
|additional_info=Implemented November 20, 2018
 
}}
 
}}

Revision as of 10:41, 3 December 2020

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integer osApproxEquals(float a, float b)

integer osApproxEquals(vector va, vector vb)
integer osApproxEquals(rotation ra, rotation rb)
integer osApproxEquals(float a, float b, float margin)
integer osApproxEquals(vector va, vector vb, float margin)
integer osApproxEquals(rotation ra, rotation rb, float margin)

Returns 1 (true) if the quantities or all their components do not differ by the margin value, or 1e-6 (0.000001), if margin is not provided. Returns 0 (false) otherwise.
Threat Level This function does not do a threat level check
Permissions Use of this function is always allowed by default
Extra Delay 0 seconds
Example(s)
Compare two floats 
//
// osApproxEquals Script Exemple
// Author: djphil
//
 
integer switch;
 
default
{
    state_entry()
    {
        llSay(PUBLIC_CHANNEL, "Touch to see osApproxEquals usage.");
        llSay(PUBLIC_CHANNEL, "This exemple compare two floats.");
    }
 
    touch_start(integer number)
    {
        float fa = 1.000000;
        float fb = 1.000001;
 
        if (switch =! switch)
        {
            fb = 1.000002;
        }
 
        llSay(PUBLIC_CHANNEL, "The float \"fa\" value is " + (string)fa);
        llSay(PUBLIC_CHANNEL, "The float \"fb\" value is " + (string)fb);
 
        // On Xengine use if (osApproxEquals(a, b) == TRUE)
        if (osApproxEquals(fa, fb))
        {
            llSay(PUBLIC_CHANNEL, "The values fa and fb are closer than 0.000001 on x, y and z ...");
        }
 
        else
        {
            llSay(PUBLIC_CHANNEL, "The values fa and fb are not closer than 0.000001 on x, y and z ...");
        }
    }
}

Compare two vectors 

//
// osApproxEquals Script Exemple
// Author: djphil
//
 
integer switch;
 
default
{
    state_entry()
    {
        llSay(PUBLIC_CHANNEL, "Touch to see osApproxEquals usage.");
        llSay(PUBLIC_CHANNEL, "This exemple compare two vectors.");
    }
 
    touch_start(integer number)
    {
        vector va = <1.000000, 1.000000, 1.000000>;
        vector vb = <1.000001, 1.000001, 1.000001>;
 
        if (switch =! switch)
        {
            vb = <1.000002, 1.000002, 1.000002>;
        }
 
        llSay(PUBLIC_CHANNEL, "The vector \"va\" value is " + (string)va);
        llSay(PUBLIC_CHANNEL, "The vector \"vb\" value is " + (string)vb);
 
        // On Xengine use if (osApproxEquals(a, b) == TRUE)
        if (osApproxEquals(va, vb))
        {
            llSay(PUBLIC_CHANNEL, "The values va and vb are closer than 0.000001 on x, y and z ...");
        }
 
        else
        {
            llSay(PUBLIC_CHANNEL, "The values va and vb are not closer than 0.000001 on x, y and z ...");
        }
    }
}

Compare two rotations 

//
// osApproxEquals Script Exemple
// Author: djphil
//
 
integer switch;
 
default
{
    state_entry()
    {
        llSay(PUBLIC_CHANNEL, "Touch to see osApproxEquals usage.");
        llSay(PUBLIC_CHANNEL, "This exemple compare two rotations.");
    }
 
    touch_start(integer number)
    {
        rotation ra = <1.000000, 1.000000, 1.000000, 1.000000>;
        rotation rb = <1.000001, 1.000001, 1.000001, 1.000001>;
 
        if (switch =! switch)
        {
            rb = <1.000002, 1.000002, 1.000002, 1.000002>;
        }
 
        llSay(PUBLIC_CHANNEL, "The rotation \"ra\" value is " + (string)ra);
        llSay(PUBLIC_CHANNEL, "The rotation \"rb\" value is " + (string)rb);
 
        // On Xengine use if (osApproxEquals(a, b) == TRUE)
        if (osApproxEquals(ra, rb))
        {
            llSay(PUBLIC_CHANNEL, "The values ra and rb are closer than 0.000001 on x, y and z ...");
        }
 
        else
        {
            llSay(PUBLIC_CHANNEL, "The values ra and rb are not closer than 0.000001 on x, y and z ...");
        }
    }
}

Compare two floats with margin 

//
// osApproxEquals Script Exemple
// Author: djphil
//
 
float margin = 0.2;
integer switch;
 
default
{
    state_entry()
    {
        llSay(PUBLIC_CHANNEL, "Touch to see osApproxEquals usage.");
        llSay(PUBLIC_CHANNEL, "This exemple compare two floats with a margin of " + (string)margin);
    }
 
    touch_start(integer number)
    {
        float fa = 1.000000;
        float fb = 1.000001;
 
 
        if (switch =! switch)
        {
            fb = 1.000001 + margin;
        }
 
        llSay(PUBLIC_CHANNEL, "The float \"fa\" value is " + (string)fa);
        llSay(PUBLIC_CHANNEL, "The float \"fb\" value is " + (string)fb);
        llSay(PUBLIC_CHANNEL, "The margin value is " + (string)margin);
 
        // On Xengine use if (osApproxEquals(a, b) == TRUE)
        if (osApproxEquals(fa, fb, margin))
        {
            llSay(PUBLIC_CHANNEL, "The values fa and fb are almost equal.");
        }
 
        else
        {
            llSay(PUBLIC_CHANNEL, "The values fa and fb are not almost equal.");
        }
    }
}
Notes
Implemented November 20, 2018


Retrieved from "http://opensimulator.org/index.php?title=OsApproxEquals&oldid=50190"
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