Difference between revisions of "LlList2Rot"

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{{LSL_Function
{{LSL_Function
|inject-2={{Issues/SVC-798}}
{{LSL_Function/list/element|src|index|rotation|nc=*|return={{HoverLink|ZERO_ROTATION|{{LSL VR|0.0, 0.0, 0.0, 1.0}}}}}}
|func_id=191|func_sleep=0.0|func_energy=10.0
|func_id=191|func_sleep=0.0|func_energy=10.0
|func=llList2Rot|return_type=rotation|p1_type=list|p1_name=src|p2_type=integer|p2_name=index
|func=llList2Rot|return_type=rotation
|func_footnote=If the entry at '''index''' in '''src''' is not a rotation {{LSLG|ZERO_ROTATION|<0.0, 0.0, 0.0, 1.0>}} is returned (or if '''index''' is out of range).<br/> In this case use: ({{LSLG|rotation}}){{LSLG|llList2String}}(src, index);
|p1_type=list|p1_name=src
|p2_type=integer|p2_name=index
|func_footnote=
{{LSL Tip|Please read [[User:Kireji_Haiku/How_to_deal_with_lists_in_LSL|this intro of how to iterate over a list in LSL]].}}
|func_desc
|func_desc
|return_text=that is at '''index''' in '''src'''.
|return_text=that is at {{LSLP|index}} in {{LSLP|src}}.
|spec
|spec
|caveats
|caveats=*When used to typecast from a string it will result in a [[ZERO_ROTATION]]
**A true typecast will solve this: ([[rotation]])[[llList2String]](src, index);
***Unfortunately, if it was already a rotation type, using [[llList2String]] will cause the decimal values to be truncated to six decimal places.
|constants
|constants
|examples
|examples=
<source lang="lsl2">// Best viewed in Chat History (ctrl-h)
default
{
    state_entry()
    {
        list my_list = ["a", 1, 2.0, <1,2,3>, <1,2,3,4>, llGetOwner()];
        integer i = ~llGetListLength(my_list);
        while (++i)
        {
            llOwnerSay("string=" + llList2String(my_list,i)
                        + "\n  integer=" + (string)llList2Integer(my_list,i)
                        + "\n  float=" + (string)llList2Float(my_list,i)
                        + "\n  vector=" + (string)llList2Vector(my_list,i)
                        + "\n  rot=" + (string)llList2Rot(my_list,i)
                        + "\n  key=" + (string)llList2Key(my_list,i) );
        }
    }
}</source>
|helpers
|helpers
|also_functions
|also_functions=
{{LSL DefineRow||[[llGetListEntryType]]|}}
{{LSL DefineRow||[[llList2String]]|}}
|also_events
|also_events
|also_tests
|also_tests
|also_articles
|also_articles
|notes
|notes
|permission
|issues
|negative_index=true
|sort=List2Rot
|cat1=List
|cat1=List
|cat2
|cat2

Latest revision as of 10:46, 22 January 2015

Summary

Function: rotation llList2Rot( list src, integer index );
0.0 Forced Delay
10.0 Energy

Returns a rotation that is at index in src.

• list src List containing the element of interest.
• integer index Index of the element of interest.

index supports negative indexes.
If index describes a location not in src then ZERO_ROTATION is returned.
If the type of the element at index in src is not a rotation then ZERO_ROTATION is returned.
Here is a workaround: (rotation)llList2String(src, index);

KBcaution.png Important: Please read this intro of how to iterate over a list in LSL.

Specification

Index Positive Negative
First 0 -length
Last length - 1 -1

Indexes

  • Positive indexes count from the beginning, the first item being indexed as 0, the last as (length - 1).
  • Negative indexes count from the far end, the first item being indexed as -length, the last as -1.

Caveats

  • If index is out of bounds the script continues to execute without an error message.
  • When used to typecast from a string it will result in a ZERO_ROTATION
    • A true typecast will solve this: (rotation)llList2String(src, index);
      • Unfortunately, if it was already a rotation type, using llList2String will cause the decimal values to be truncated to six decimal places.

Examples

// Best viewed in Chat History (ctrl-h)
default
{
    state_entry()
    {
        list my_list = ["a", 1, 2.0, <1,2,3>, <1,2,3,4>, llGetOwner()];
        integer i = ~llGetListLength(my_list);
        while (++i)
        {
            llOwnerSay("string=" + llList2String(my_list,i)
                        + "\n   integer=" + (string)llList2Integer(my_list,i)
                        + "\n   float=" + (string)llList2Float(my_list,i)
                        + "\n   vector=" + (string)llList2Vector(my_list,i)
                        + "\n   rot=" + (string)llList2Rot(my_list,i)
                        + "\n   key=" + (string)llList2Key(my_list,i) );
        }
    }
}

See Also

Functions

•  llGetListEntryType
•  llList2String

Articles

•  Negative Index

Deep Notes

Signature

function rotation llList2Rot( list src, integer index );