Index and Alpha transparencies

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I am saving images in Gif with a transparent background and
it gives me =
a choice of index or alpha transparancy choices.
I searched on Google to try to find the difference, but
cannot. Can =
anyone explain the difference between the two?
Thank you,
Scott
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<META http-equiv=3DContent-Type content=3D"text/html; =
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<DIV><FONT face=3DArial size=3D2>I am saving
images in Gif with a =
transparent=20
background and it gives me a choice of index or alpha
transparancy=20
choices.</FONT></DIV>
<DIV><FONT face=3DArial
size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I searched on
Google to try to find the =
difference,=20
but cannot. Can anyone explain the difference between the =
two?</FONT></DIV>
<DIV><FONT face=3DArial
size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Thank
you,</FONT></DIV>
<DIV><FONT face=3DArial
size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial
size=3D2>Scott</FONT></DIV></BODY></HTML>
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Scott Powell wrote:
> I am saving images in Gif with a transparent background
and it gives me a choice of index or alpha transparancy choices.
>
> I searched on Google to try to find the difference, but
cannot. Can anyone explain the difference between the two?
Index transparency is used for GIF images. GIFs allow
single-bit
transparency, which means when you are creating your image,
you can
specify one color to be transparent.
Alpha transparency is used for PNG files. Instead of the
vestigial
transparency option of the GIF format, where a pixel is
either
transparent or opaque, an alpha channel can specify the
opacity of any
pixel from 0255, where 0 is fully transparent and 255
is fully opaque.
This allows you to create a graphic that can be placed on top
of any
background color and will retain a translucent effect, with
the
background showing through the pixels that are not opaque.
The drawback
is that I.E. versions 5 & 6 do not display variable Alpha
transparency
without a workaround. I.E.7 gets it right, however.
Linda Rathgeber [PVII] *Adobe Community Expert-Fireworks*
http://www.projectseven.com
Fireworks Newsgroup:
news://forums.projectseven.com/fireworks/
CSS Newsgroup: news://forums.projectseven.com/css/

Similar Messages

What is diff b/w sy-index and sy-tabix

Hi all,
Can u plz give me the diff b/w sy-index and sy-tabix exactly and how it works.
Thanks & Regards
Venkat

Hi Venkat,
<b>1.SY-INDEX</b>
<b>-></b>Current loop pass
<b>-></b>In a DO or WHILE loop, SY-INDEX contains the number of loop passes including the current pass.
<b>2.SY-TABIX</b>
<b>-></b>Current line index
Current line of an internal table. SY-TABIX is set by the statements below, but only for index tables.
The field is either not set or is set to 0 for hashed tables.
<b>APPEND</b> sets SY-TABIX to the index of the last line of the table, that is, it contains the overall number of entries in the table.
<b>
COLLECT</b> sets SY-TABIX to the index of the existing or inserted line in the table. If the table has the type HASHED TABLE, SY-TABIX is set to 0.
<b>LOOP AT</b> sets SY-TABIX to the index of the current line at the beginning of each loop lass. At the end of the loop, SY-TABIX is reset to the value that it had before entering the loop. It is set to 0 if the table has the type HASHED TABLE.
<b>READ TABLE</b> sets SY-TABIX to the index of the table line read. If you use a binary search, and the system does not find a line, SY-TABIX contains the total number of lines, or one more than the total number of lines. SY-INDEX is undefined if a linear search fails to return an entry.
<b>
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I think that it clears ur doubt.
<b>Thanks,
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What is difference between sy-index and sy-tabix and where both are using ?

what is difference between sy-index and sy-tabix and where both are using ?

hi nagaraju
sy-tabix is in Internal table, current line index. So it can only be used while looping at the internal table.
sy-index is in Loops, number of current pass. This you can use in other loop statements also (like do-enddo loop, while-endwhile)
SY-INDEX is a counter for following loops: do...enddo, while..endwhile
SY-TABIX is a counter for LOOP...ENDLOOP, READ TABLE...
Here is an example from which you can understand the difference between sy-tabix and sy-index.
Itab is an internal table with the following data in it.
id Name
198 XYZ
475 ABC
545 PQR.
loop at itab where id > 300.
write :/ itab-id, itab-name , sy-tabix, sy-index.
endloop.
My output will be :
475 ABC 2 1
545 PQR 3 2
Sy-tabix is the index of the record in internal table.
sy-index gives the no of times of loop passes.
So, for the first record in the output (475 ABC), 2 is the index of the record in internal table and as it is first time loop pass occured, sy-index value is 1.
Regards,
navjot
award points

Difference b/w sy-index and sy-tabix

hai all,
Could u explain the difference b/w sy-index and sy-tabix?
regards,
Selva

Hi,
sy-index - For Loops, Current Loop Pass.
sy-tabix - For Internal Table, Current Line Index in internal table.
sy-tabix is used at internal table operations (READ TABLE ... LOOP AT ...), sy-index is used at cycles (DO...n TIMES).
SY-TABIX:
Current line of an internal table. SY-TABIX is set by the statements below, but only for index tables. The field is either not set or is set to 0 for hashed tables.
it can be set by using the following:
1.append
2.collect
3.loop at
4. read
5.search
APPEND sets SY-TABIX to the index of the last line of the table, that is, it contains the overall number of entries in the table.
COLLECT sets SY-TABIX to the index of the existing or inserted line in the table. If the table has the type HASHED TABLE, SY-TABIX is set to 0.
LOOP AT sets SY-TABIX to the index of the current line at the beginning of each loop lass. At the end of the loop, SY-TABIX is reset to the value that it had before entering the loop. It is set to 0 if the table has the type HASHED TABLE.
READ TABLE sets SY-TABIX to the index of the table line read. If you use a binary search, and the system does not find a line, SY-TABIX contains the total number of lines, or one more than the total number of lines. SY-INDEX is undefined if a linear search fails to return an entry.
SEARCH <itab> FOR sets SY-TABIX to the index of the table line in which the search string is found.
SY-INDEX:
SY-INDEX is used to describe the number of iteration with in the DO..ENDDO, WHILE ...ENDWHILE....
for example,
DO.
WRITE SY-INDEX.
IF SY-INDEX = 3.
EXIT.
ENDIF.
ENDDO.
it gives output as:
1 2 3
Regards,
Raj.

Regarding sy-index and sy-tabix

Hi,
What is the major difference between sy-index and sy-tabix ,
can you give me one good example with code..
Regards,
Reddy.

Hi,
SY-TABIX - Current line of an internal table. SY-TABIX is set by the statements below, but only for index tables. The field is either not set or is set to 0 for hashed tables.
APPEND sets SY-TABIX to the index of the last line of the table, that is, it contains the overall number of entries in the table.
COLLECT sets SY-TABIX to the index of the existing or inserted line in the table. If the table has the type HASHED TABLE, SY-TABIX is set to 0.
LOOP AT sets SY-TABIX to the index of the current line at the beginning of each loop lass. At the end of the loop, SY-TABIX is reset to the value that it had before entering the loop. It is set to 0 if the table has the type HASHED TABLE.
READ TABLE sets SY-TABIX to the index of the table line read. If you use a binary search, and the system does not find a line, SY-TABIX contains the total number of lines, or one more than the total number of lines. SY-INDEX is undefined if a linear search fails to return an entry.
SEARCH FOR sets SY-TABIX to the index of the table line in which the search string is found.
SY_INDEX - In a DO or WHILE loop, SY-INDEX contains the number of loop passes including the current pass.
sy-tabix is the tab index - the index of the record in the internal table you are accessing,
sy-index is the loop counter.
If you use a condition in LOOP the sy-index will go from 1 to n, but sy-tabix will refer to the line in the internal table.
Hope this helps u.
Thanks,
Ruthra

Difference b/w index and key

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and also tell me in which case which UI need to be used
Thanks
rahul

DropDownByKey
A DropDownByIndex UI element provides the user with a dropdown list box. You cannot select more than one entry from the selection list. The UI element consists of a text field, a button, and a selection list. Any list item already selected is displayed in the text field. When the user chooses the pushbutton, a list of all possible values is displayed.
DropDownByIndex
A DropDownByIndex UI element provides the user with a dropdown list box. You cannot select more than one entry from the selection list. The UI element consists of a text field, a button, and a selection list. Any list item already selected is displayed in the text field. When selecting the button, a list with all possible values is displayed.
http://help.sap.com/saphelp_nw04s/helpdata/en/d9/478041a17e060de10000000a1550b0/frameset.htm
In radiabutton we can have the only one decision.But
checkbox we can have mulitiple options.
based on the usage we choose these controls.
for example,
RadioButton
Gender - o Male o Female
here we can select only one option
for example,
CheckBox
your Interested Games?
o cricket o football o valleyball o hockey
here use may have more than option.
i hope this is enough.
award the point if ans is help full.

Difference b/w index and unique

Hi,
Difference b/w index and unique?

hi,
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You cannot use the UNIQUE addition for standard tables. The system always generates the NON-UNIQUE addition automatically.
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INDEX:
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The primary index is distinguished from the secondary indexes of a table. The primary index contains the key fields of the table and a pointer to the non-key fields of the table. The primary index is created automatically when the table is created in the database
You can also create further indexes on a table in the ABAP Dictionary. These are called secondary indexes. This is necessary if the table is frequently accessed in a way that does not take advantage of the sorting of the primary index for the access.
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The system automatically creates the primary index. It consists of the primary key fields of the database table. This means that for each combination of fields in the index, there is a maximum of one line in the table. This kind of index is also known as UNIQUE.
If you cannot use the primary index to determine the result set because, for example, none of the primary index fields occur in the WHERE or HAVINGclauses, the system searches through the entire table (full table scan). For this case, you can create secondary indexes, which can restrict the number of table entries searched to form the result set.
You create secondary indexes using the ABAP Dictionary. There you can create its columns and define it as UNIQUE. However, you should not create secondary indexes to cover all possible combinations of fields.
Only create one if you select data by fields that are not contained in another index, and the performance is very poor. Furthermore, you should only create secondary indexes for database tables from which you mainly read, since indexes have to be updated each time the database table is changed. As a rule, secondary indexes should not contain more than four fields, and you should not have more than five indexes for a single database table.
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If all of the columns in the SELECT clause are contained in the index, the system does not have to search the actual table data after reading from the index. If you have a SELECT clause with very few columns, you can improve performance dramatically by including these columns in a secondary index.
What is the difference between primary index and secondary index?
http://help.sap.com/saphelp_47x200/helpdata/en/cf/21eb2d446011d189700000e8322d00/frameset.htm
A difference is made between Primary & Secondary indexes to a table. the primary index consists of the key fields of the table and a pointer to the non-keys-fields of the table. The Primary index is generated automatically when a table is created and is created in the datebase as the same times as the table. It is also possible to define further indexes to a table in the ABAP/4 dictionary, which are then referred to as Secondary indexes.
Message was edited by:
Roja Velagapudi

What is the difference between the drop and create the index and rebuild index ?

Hi All,
what is the difference between drop and create index & rebuild index ? i think both are same...Please clarify if both are same or any difference...
Thanks in Advance,
rup

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Ref:
SSMS - https://technet.microsoft.com/en-us/library/ms187874(v=sql.105).aspx
TSQL - https://msdn.microsoft.com/en-us/library/ms188388.aspx
I would suggest you to also refer one of the best index maintenance script as below:
https://ola.hallengren.com/sql-server-index-and-statistics-maintenance.html

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Questions about Indexing and Using an Indexing POA

Although I have only about 50 users, at least 15 of them have in excess of 100,000 messages in their accounts and the POA (version 7.0.2) is regularly slowing to a crawl. (I just know that plans for revolution are fomenting!) I have embarked on a campaign to reduce these accounts by archiving everything off to get mail accounts down to 3000 or fewer pieces. I have achieved user buy-in, but have worked on only a few users so far.
In another closely related thread, it was suggested to me that the PO speed issues relate to broken indexes. And I suspect that given so many messages, the indexes were never getting fully rebuilt with the default QF POA settings. I am trying to fix that situation in addition to reducing mail account sizes. So, I have set up a second POA on another server and dedicated it to the indexing task. The /qfinterval is set for 1 hour, other /qf switches at default. The POA-QF does no mail delivery, but it does do nightly user upkeep.
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If I want to use my secondary POA-QF to rebuild a user's index from scratch, does the main POA have to be offline and the user out of GWise? That is, Does the QF process require exclusive access in order to rebuild indexes from scratch?
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Peter Smick

pgsmick wrote:
> 1. Is the progress I am seeing real progress? For example I have a user with
> over 100,000 messages to be indexed and every time I check the logs, the count
> drops by about 500 messages per hourly QF cycle. I assume that if I just let
> it keep running, it will eventually get caught up and fixed. Not only with
> this user, but with all the others as well. Will my patience (and theirs) be
> rewarded? Are there any gotchas I need to prepare for?
Set this switch for this indexing POA - /qflevel=999 - this will index
everything in one run. It will take a long time, but with no qflevel switch you
are indeed only indexing 500 messages at a time, and if the user has that much
mail, it might never really catch up.
>
> 2. One user has recently had virtually all of her messages successfully moved
> to archive. I can see them in the Archive, and do not see them in the online
> account. However, now over a week later, QF still shows >130,000 items still
> left to index for that user. The POA-QF is making slow, steady progress
> reducing that number, but why is this user's QF count still so high? Does it
> just need more time, or is there something amiss for this user?
>
This is odd, because really the index count should drop to nothing, but with the
above switch this might get resolved as well.
> 3. I may want to rebuild indexes for single users from scratch. I have seen
> the TID 3105742 which tells how to do this: Essentially you turn off mail
> delivery functions, and make some other switch changes to dedicate the POA to
> indexing for just a single user, and then you let the POA rebuild the indexes.
> The implication of that scenario is that the POA is now enjoying exclusive
> access to the user's databases.
Not really - the POA is not enjoying exclusive access to the user's database,
the indexer is just avoiding an attempt to index anything else.
> If I want to use my secondary POA-QF to rebuild a user's index from scratch,
> does the main POA have to be offline and the user out of GWise? That is, Does
> the QF process require exclusive access in order to rebuild indexes from
> scratch?
No - QF never requires exclusive access. That said, you may find that an
extremely vigorous QF can cause slowdowns for the user.
Danita
Novell Knowledge Partner
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Dear Mr Syed ,
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However,I leave the thoughts with you.
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HI James,
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Dear all,
In our ECC 5 environment, we have some vendors who master record numbers that are numeric internally assigned i.e 7000000 or 23000000 and some alphanumeric externally assigned i.e SmallBusiness1 or Grinad10. This is posible as you may know via vendor account groups.
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Thanks,
Grace

Christophe,
PLEASE HELP I HAVE AN URGENT ISSUE NOW!!!
On the subject of setting back the internal BP number range, does SRM expect it to be set for example to:
01 0000000001 - 0000999999?
Should the grouping for this internal number range be also ways set to 0001. Iam refernceing the settings in our sandbox client, they seam to be set up that way.
If its set to say 0003, will this cause a problem?
Because we have set all our BP ranges to external, any ORG unit, USER or position that we created after we "removed" the internal number range does appear to be working.
I have noticed this. when I login as a new user and try to create a shopping cart, tthe product category drop down does not work on the "new user".
If I go in the BP transaction and search for this new user or new unit org units that where created after the removal of the internal number range nothing is found!. The last internal BP number is 105.
Question.
If I set the internal number range back to
01 0000000001 - 0000099999 and set the current number to 106, then delete and recreate the org units, do you think this will work?
Please help I need to get this issue sorted out because as you said no new org unit/user can be setup.
Thanks Again.
Grace

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Hi Mark,
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Hi, I'm a newbie here trying some stuff on JE BDB. And now I'm having
I am happy to help you with this, but I'll have to ask you to re-post this question to the BDB JE forum, which is...
Sorry for the mistake. I know now that here is the place to post my doubts.
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But, all my business classes have the same Sequence Name: "ID_SEQ" then, when I start running my JE BDB at first time, I start saving 3 new Department objects and the sequence for these department objects star with "#1" and finishes with #3.
Then I continue saving Employee objects (here was the problem) I thought that my next Sequence number could be #4 but actually it was #101 so when I tried to save my very first Employee, I set the property "managerId=null" since this employee is the Manager, then, when I tried to save my second Employee who is working under the first one (the manager employee), I got the following exception message:
TryingJEBDBApp DatabaseExcaption: com.sleepycat.je.ForeignConstraintException: (JE 4.0.71) Secondary persist#EntityStoreName#com.dmp.gamblit.persistence.BDB.store.eployee.Employee#*managerId*
foreign key not allowed: it is not present in the foreign database
persist#EntityStoreName#com.dmp.gamblit.persistence.BDB.store.eployee.Employee
The solution:
I fixed it modifying the managerId value from "4" to "101" and it works now!
At this moment I'm trying to understand the Sequence mechanism and refining concerns about Cursors manipulation...
Have you any good material about these topics, perhaps a link where I can find more detailed information on these?
Thanks in advance Mark, thanks for your attention on this and I will post more doubts in the future for sure ;0)
Regards,
Diego

Hi Diego,
I fixed it modifying the managerId value from "4" to "101" and it works now!I'm glad you found the problem. It is usually best to get the assigned ID from the entity object after you call put(), and then use that value to fill in related fields in other entities. The primary key field (assigned from the sequence) is set by the put() method.
At this moment I'm trying to understand the Sequence mechanism and refining concerns about Cursors manipulation...Have you any good material about these topics, perhaps a link where I can find more detailed information on these? >
To find documentation, start at the first message in the forum, the Welcome message:
http://forums.oracle.com/forums/ann.jspa?annID=250
This refers to the main JE doc page, the JE FAQ and a white paper on DPL queries. The FAQ has a section on the DPL, which refers to the javadoc. The DPL javadoc has lots of info on using cursors along with indexes (see EntityIndex, PrimaryIndex, SecondaryIndex). The white paper will be useful to you if you're accustomed to using SQL.
I don't know of any doc on sequences other than the javadoc:
http://www.oracle.com/technology/documentation/berkeley-db/je/java/com/sleepycat/persist/model/PrimaryKey.html#sequence()
This doc will point you to info on configuring the sequence, if that's what you're interested in.
--mark

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