Panel Decoration Reference index Question

I have a front panel that uses native LV controls so I avoid scaling objects with monitor resolution as I have not had the best results with this when using native LV controls and indicators.
The front panel was laid out on a 1680 X 1050 widescreen monitor. I want to use it on my laptop that uses 1280 X 1024. I have the verticle taken care of by ensuring all the controls fit within th everticle area. But I need help with the horizontal scrolling.
I am trying to limit the left and right scrolling to not extend beyond the furthest most left decoration and the furthest right decoration. I used PANEL - DECORATION property nodes to get access to the decoration bounds so I can set the Left, Top and Right Bottom of the FP.BOUNDS,
But I have not had any luck getting this to limit the horizontal scrolling, it still goes to far left and to far right.
Another question is - How do i find out the index of a decoration when there are a lot of decorations on the front panel.
Thanks
Tim Crouse
1:30 Seconds ARRRGHHH!!!! I want my popcorn NOW! Isn't there anything faster than a microwave!

Tim,
You can get the reference of a specific decoration by looking at the size and/or color. Using Width, Height, and Color, you should be able to pin down the exact decoration that you want a reference of. The attched picture just looks at Height.
...(I'm getting tired of the editor eating my posts)...
Richard
Attachments:
specific decoration ref.gif ‏50 KB

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You can access references to the decorations via a front panel reference. Wire the front panel reference to a property node and select the controls property, it will give you references to all the decorations. You now need to know the indexes of the references you want, get those indexes and you can read and write the size property of the decoration(s). I have attached a simple example that resizes two decorations when the front panel is rescaled, just run it and resize the window...the properties will rescale accordingly.
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Attachments:
DecorationRescaling.vi ‏52 KB

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How come a locked decoration doesn't show up in the VI.Panel.Decorations[ ] property but a locked control shows up in the VI.Panel.Controls[ ] property?

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OK, but seriously, Regarding workaround No. 2. I tried to use the VI.Panel.AllObjects[] property but the refnum of all decorations are invalid and I get Error 1055 (Object reference is invalid) when I try to operate on it. I am running LV 6.0.2. Attached is an example with the values after running it on my PC saved as defaults.
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Attachments:
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ChaosAD wrote:
I have a star schema database setup with a bunch of definition tables with 2-10 values in each. Most things I read say to use bitmap only in data warehousing, but in the same breath talk about tables exactly like I have them set up. So my question is, do bitmap indexes ever have a use outside of data warehouse? We don't do millions of transactions on hr, but it is an asset management front end run using php. So the main data tables is getting updated, inserted, and deleted during the day. I'd say on average we have about 30 users at any given time performing actions on the tables or pulling reports.
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<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by alan barker ([email protected]):
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Help required in Index Question

Hi,
This is an interview question that i faced.
Theres a table Statistics having more than 300 columns. It has normal indexes on say five columns col1, col2, col3, col4, col5.
Queries involving the first four columns give excellent performance but the query involving col5 gives poor performance.
COL5 has around 5 million data and 1 normal index ix created on it and theres just one value in it say 'STATS'.(He said the query can be simple select queries or join queries, the queries may select all the rows of few rows may be 5%, 10% etc).
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Is it a good idea to creat a normal index on a column that have just one value as 'STATS' and the total no of rows is more than 5 million??
No
See the I/O
SQL> CREATE TABLE bitmap_table AS SELECT ROWNUM rn FROM all_objects
2 /
Table created.
SQL> ALTER TABLE bitmap_table ADD (status VARCHAR2(1))
2 /
Table altered.
SQL> SELECT COUNT(*) FROM bitmap_table
2 /
COUNT(*)
    64177
SQL> UPDATE bitmap_table SET status='Y'
2 /
64177 rows updated.
SQL> COMMIT
2 /
Commit complete.
SQL> CREATE TABLE btree_table AS SELECT * FROM bitmap_table
2 /
Table created.
SQL> CREATE BITMAP INDEX bitmap_table_idx ON bitmap_table (status)
2 /
Index created.
SQL> CREATE INDEX btree_table_idx ON btree_table (status)
2 /
Index created.
SQL> EXEC DBMS_STATS.GATHER_TABLE_STATS('SCOTT','BITMAP_TABLE')
PL/SQL procedure successfully completed.
SQL> EXEC DBMS_STATS.GATHER_INDEX_STATS('SCOTT','BITMAP_TABLE_IDX')
PL/SQL procedure successfully completed.
SQL> EXEC DBMS_STATS.GATHER_TABLE_STATS('SCOTT','BTREE_TABLE')
PL/SQL procedure successfully completed.
SQL> EXEC DBMS_STATS.GATHER_INDEX_STATS('SCOTT','BTREE_TABLE_IDX')
PL/SQL procedure successfully completed.
SQL> SET AUTOTRACE TRACEONLY
SQL> SELECT status
2    FROM bitmap_table
3   WHERE status='Y'
4 /
64177 rows selected.
Execution Plan
   0      SELECT STATEMENT Optimizer=ALL_ROWS (Cost=2 Card=64177 Bytes
          =128354)
   1    0   BITMAP CONVERSION (TO ROWIDS) (Cost=2 Card=64177 Bytes=128
          354)
   2    1     BITMAP INDEX (FAST FULL SCAN) OF 'BITMAP_TABLE_IDX' (IND
          EX (BITMAP))
Statistics
        171 recursive calls
          0 db block gets
         31 consistent gets
          0 physical reads
          0 redo size
     804546 bytes sent via SQL*Net to client
     475281 bytes received via SQL*Net from client
       4280 SQL*Net roundtrips to/from client
          4 sorts (memory)
          0 sorts (disk)
      64177 rows processed
SQL> DROP INDEX BITMAP_TABLE_IDX
2 /
Index dropped.
SQL> EXEC DBMS_STATS.GATHER_TABLE_STATS('SCOTT','BITMAP_TABLE')
PL/SQL procedure successfully completed.
SQL> SET AUTOTRACE TRACEONLY
SQL> SELECT status
2    FROM bitmap_table
3   WHERE status='Y'
4 /
64177 rows selected.
Execution Plan
   0      SELECT STATEMENT Optimizer=ALL_ROWS (Cost=26 Card=64202 Byte
          s=128404)
   1    0   TABLE ACCESS (FULL) OF 'BITMAP_TABLE' (TABLE) (Cost=26 Car
          d=64202 Bytes=128404)
Statistics
        192 recursive calls
          0 db block gets
       4405 consistent gets
          0 physical reads
          0 redo size
     804546 bytes sent via SQL*Net to client
     475281 bytes received via SQL*Net from client
       4280 SQL*Net roundtrips to/from client
          4 sorts (memory)
          0 sorts (disk)
      64177 rows processed
SQL> SELECT status
2    FROM btree_table
3   WHERE status='Y'
4 /
64177 rows selected.
Execution Plan
   0      SELECT STATEMENT Optimizer=ALL_ROWS (Cost=27 Card=64177 Byte
          s=128354)
   1    0   INDEX (FAST FULL SCAN) OF 'BTREE_TABLE_IDX' (INDEX) (Cost=
          27 Card=64177 Bytes=128354)
Statistics
        171 recursive calls
          0 db block gets
       4429 consistent gets
          0 physical reads
          0 redo size
     804546 bytes sent via SQL*Net to client
     475281 bytes received via SQL*Net from client
       4280 SQL*Net roundtrips to/from client
          4 sorts (memory)
          0 sorts (disk)
      64177 rows processed
SQL> SELECT index_name,blevel,num_rows
2    FROM user_indexes
3   WHERE index_name='BTREE_TABLE_IDX'
4 /
INDEX_NAME                        BLEVEL NUM_ROWS
BTREE_TABLE_IDX                        1     64177
SQL> SELECT index_name,blevel,num_rows
2    FROM user_indexes
3* WHERE index_name='BITMAP_TABLE_IDX'
SQL> /
INDEX_NAME                        BLEVEL NUM_ROWS
BITMAP_TABLE_IDX                       1         3Khurram

Panel Decoration Reference index Question

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