Converting bytes to pixels???

Hi Everyone,
My Jdev version is 11.1.2.3.0.
I have deloped one ADF applicaton which is working fine.
Now i have added a table to the page which has 3 columns. The width of the column in ADF page should be equal to width of the column in the database.
How can i convert bytes to pixels in my ADF page.
The three column's width in database are: 200Bytes, 250Bytes, 150Bytes. Now i need to specify the width in pixels in ADF.
how can i do that?
Any ways to do that?
Thanks.

Yeah I meant e[i] - sorry about that.
When you say "diagram the to / from arrays" do you mean you want to see their definition & initialisation? If so, please see below:
numBands, length & width are the three fields read in from the image header.
byte[] imageDataByte = new byte[numBands * length * width];
          ra.read(imageDataByte,0,numBands * length * width);
          int[] iD = new int[numBands * length * width];
          int count = 0;
          int[] imageData = new int[numBands * length * width];
          for (int x = 0; x < length; x++)
          for (int y = 0; y < numBands; y++)
          for (int z = 0; z < width; z++)
               imageData[(length*z+x) + (length* width*y)] += imageDataByte[(length*z+x) + (length* width*y)] << ((length*z+x) + (length* width*y)*512);
               count = count + 1;
               System.out.println(count + ": " + imageData[(length*z+x) + (length* width*y)]);
Any help would be greatly appreciated.
Many thanks,
CG.

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Convert byte array to table of int

[http://www.codeproject.com/KB/database/PassingArraysIntoSPs.aspx?display=Print|http://www.codeproject.com/KB/database/PassingArraysIntoSPs.aspx?display=Print] Hello friends.
I'm pretty new with PL/SQL.
I have code that run well on MSSQL and I want to convert it to PL/SQL with no luck.
The code converts byte array to table of int.
The byte array is actually array of int that was converted to bytes in C# for sending it as parameter.
The TSQL code is:
CREATE FUNCTION dbo.GetTableVarchar(@Data image)
RETURNS @DataTable TABLE (RowID int primary key IDENTITY ,
Value Varchar(8000))
AS
BEGIN
--First Test the data is of type Varchar.
IF(dbo.ValidateExpectedType(103, @Data)<>1) RETURN
--Loop thru the list inserting each
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DECLARE @Ptr int, @Length int,
@VarcharLength smallint, @Value Varchar(8000)
SELECT @Length = DataLength(@Data), @Ptr = 2
WHILE(@Ptr<@Length)
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SET @VarcharLength = SUBSTRING(@Data, @ptr, 2)
SET @Ptr = @Ptr + 2
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RETURN
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It's taken from http://www.codeproject.com/KB/database/PassingArraysIntoSPs.aspx?display=Print.
The C# code is:
public byte[] Convert2Bytes(int[] list)
if (list == null || list.Length == 0)
return new byte[0];
byte[] data = new byte[list.Length * 4];
int k = 0;
for (int i = 0; i < list.Length; i++)
byte[] intBytes = BitConverter.GetBytes(list);
for (int j = intBytes.Length - 1; j >= 0; j--)
data[k++] = intBytes[j];
return data;
I tryied to convert the TSQL code to PL/SQL and thats what I've got:
FUNCTION GetTableInt(p_Data blob)
RETURN t_array --t_array is table of int
AS
l_Ptr number;
l_Length number;
l_ID number;
l_data t_array;
BEGIN
     l_Length := dbms_lob.getlength(p_Data);
l_Ptr := 1;
     WHILE(l_Ptr<=l_Length)
     loop
          l_ID := to_number( DBMS_LOB.SUBSTR (p_Data, 4, l_ptr));
          IF(l_ID<-2147483646)THEN
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                    l_ID := NULL;
               ELSE
                    l_Ptr := l_Ptr + 4;
                    l_ID := to_number( DBMS_LOB.SUBSTR(p_Data, 4,l_ptr));
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               END IF;
l_data(l_data.count) := l_ID;
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     RETURN l_data;
END GetTableInt;
This isn't work.
This is the error:
Error report:
ORA-06502: PL/SQL: numeric or value error: character to number conversion error
06502. 00000 - "PL/SQL: numeric or value error%s"
I think the problem is in this line:
l_ID := to_number( DBMS_LOB.SUBSTR (p_Data, 4, l_ptr));
but I don't know how to fix that.
Thanks,
MTs.

I'd found the solution.
I need to write:
l_ID := utl_raw.cast_to_binary_integer( DBMS_LOB.SUBSTR(p_Data, 4,l_ptr));
instead of:
l_ID := to_number( DBMS_LOB.SUBSTR (p_Data, 4, l_ptr));
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import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.image.ImageView;
import javafx.scene.image.PixelFormat;
import javafx.scene.image.WritableImage;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;
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Edited by: Andipa on 01.03.2013 10:52

You have found a platform bug, file it against the Runtime project at => http://javafx-jira.kenai.com with your sample code and a link back to this forum question.
Byte indexed pixel formats seem like a feature which was never completely (or perhaps even hardly at all) implemented to me.
The PixelFormat type your failed case is using is (PixelFormat.Type.BYTE_INDEXED):
PixelFormat<ByteBuffer> byteIndexedFormat = PixelFormat.createByteIndexedInstance(colorPalette);
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http://docs.oracle.com/javafx/2/api/javafx/scene/image/PixelFormat.Type.html
BYTE_BGRA
The pixels are stored in adjacent bytes with the non-premultiplied components stored in order of increasing index: blue, green, red, alpha.
BYTE_BGRA_PRE
The pixels are stored in adjacent bytes with the premultiplied components stored in order of increasing index: blue, green, red, alpha.
BYTE_INDEXED
The pixel colors are referenced by byte indices stored in the pixel array, with the byte interpreted as an unsigned index into a list of colors provided by the PixelFormat object.
BYTE_RGB
The opaque pixels are stored in adjacent bytes with the color components stored in order of increasing index: red, green, blue.
INT_ARGB
The pixels are stored in 32-bit integers with the non-premultiplied components stored in order, from MSb to LSb: alpha, red, green, blue.
INT_ARGB_PRE
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And here is the source the determines the PixelGetter for a given PixelFormat type:
http://hg.openjdk.java.net/openjfx/8/master/rt/file/06afa65a1aa3/javafx-ui-common/src/com/sun/javafx/image/PixelUtils.java
119     public static <T extends Buffer> PixelGetter<T> getGetter(PixelFormat<T> pf) {
120         switch (pf.getType()) {
121             case BYTE_BGRA:
122                 return (PixelGetter<T>) ByteBgra.getter;
123             case BYTE_BGRA_PRE:
124                 return (PixelGetter<T>) ByteBgraPre.getter;
125             case INT_ARGB:
126                 return (PixelGetter<T>) IntArgb.getter;
127             case INT_ARGB_PRE:
128                 return (PixelGetter<T>) IntArgbPre.getter;
129             case BYTE_RGB:
130                 return (PixelGetter<T>) ByteRgb.getter;
131         }
132         return null;
133     }As you can see, the BYTE_INDEXED format is not handled and null is returned instead . . . this is the source of your NullPointerException.

Function module to convert byte stream to Tiff formate.

Hi All,
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Edited by: srinivas balla on Dec 24, 2007 6:28 AM

try this
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hi
how to convert byte array into File object
pls.. help me
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srinu

rrrr007 wrote:
Hi,
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package str;
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Subinjava wrote:
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That's because the C language lacks true character and string data types. It only has arrays of bytes. Unfortunately in C bytes are misleadingly called "chars."
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Converting bytes to pixels???

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