thank you very much Gagan ,
But there is a problem , i am not getting image here... Can u plzz tell me
y?? I added u r code here
var image :Image;
image.source=processUrlString+metricId+"&width="+imagewidth;
var byteArr:ByteArray = getSnapshotByteArray(image);
image.source = loadMapImage(byteArr);
========================================
GAGAN anand-2 wrote:
>
> Hi,
>
> Use the below code after showing the image on the screen. Pass the image
> container instance in this method as a parameter and it will return the
> ByteArray with DPI u want. In below code, 120 is the DPI set.
> *
>
> private* *function* getSnapshotByteArray( target:UIComponent ):ByteArray
>
> {
>
> *var* myImage:ImageSnapshot = ImageSnapshot.captureImage(target, 120,
> *new*JPEGEncoder());
>
> *return* myImage.data *as* ByteArray;
>
> }
>
> After getting the byte array you can create the image with the DPI u want
> by
> using the below method. Pass the ByteArray to this method as a parameter
> and
> it will return the image.
> *
>
> private* *function* loadMapImage(byte:ByteArray):Image
>
> {
>
> *var* byteArr:ByteArray = byte;
>
> *var* mapImage:Image;
>
> *if*(byteArr)
>
> {
>
> mapImage = *new* Image();
>
> mapImage.load(byteArr);
>
> }
>
> *return* mapImage;
>
> }
>
> Hope this helps.
> Regards
> Gagan Deep
> On 4 May 2011 11:27, S k R p <[email protected]> wrote:
>
>>
>>
>> Thanks , Gagan ..
>>
>> Here is my code :
>>
>>
>> var img:Image;
>> img.source=processUrlString+"&width="+imagewidth+"&height="+imageheight;
>>
>> Here processUrlString = "/dashboard/servlet/processmap.do" ( ie i am
>> calling java url ..which creates chart and reurns byte[]s to flex. And i
>> am
>> adding this image to Panel in Flex.
>>
>> Here .. i want to set Image DPI like 75dpi or 90dpi etc.... by selecting
>> the
>> dpi from Combobox[Drop down B ox]
>> =================
>>
>> GAGAN anand-2 wrote:
>> >
>> > Hi,
>> >
>> > Please could you provide me the code u r using for loading the image of
>> > charts. Are u using URLLoader or something else?
>> >
>> > Thanks
>> > Gagan Deep
>> > On 3 May 2011 19:15, S k R p <[email protected]> wrote:
>> >
>> >>
>> >> Hi thanks Gagan ,
>> >> i am new to flex ...
>> >>
>> >> Can u please provide how to take image into bytearray and using
>> >> JPEGEncoder , how to set the dpi...
>> >>
>> >>
>> >> please help..
>> >>
>> >>
>> >>
>> >>
>> >> GAGAN anand-2 wrote:
>> >> >
>> >> > Hi,
>> >> >
>> >> > If you are getting direct image from java end, then you can take
>> that
>> >> > image
>> >> > in byte array and then through JPEGEncoder or PNGEncoder you can
>> >> provide
>> >> > as
>> >> > much DPI as you want.
>> >> >
>> >> > For your reference you can google about JPEGEncoder or PNGEncoder.
>> >> >
>> >> > Hope this helps
>> >> >
>> >> > Regards
>> >> > Gagan Deep
>> >> >
>> >> > On 28 April 2011 09:50, Pranav Negandhi <[email protected]> wrote:
>> >> >
>> >> >> I don't think you can increase the DPI. Assuming you need this for
>> >> high
>> >> >> quality printouts, you could, however, generate a larger image. DPI
>> is
>> >> >> just
>> >> >> a measure of the number of pixels which are used when taking a
>> >> printout.
>> >> >> If
>> >> >> your image is made up of 720 pixels and is used to generate a print
>> 10
>> >> >> inches wide, you're left with 72 pixels per inch. Instead, double
>> the
>> >> >> image
>> >> >> size to 1440 and then take a printout on the same size of paper,
>> you
>> >> have
>> >> >> 144 pixels per inch.
>> >> >>
>> >> >> The downside is that the image will take up big gobs of memory. And
>> if
>> >> >> this
>> >> >> is done on the client-side, it could possibly bring the client
>> >> computer
>> >> >> down
>> >> >> on its knees. Make sure to clear memory after you're done. Setting
>> the
>> >> >> bitmap data to null explicitly causes it to be garbage collected
>> >> >> immediately
>> >> >> in most cases.
>> >> >>
>> >> >> .p
>> >> >>
>> >> >>
>> >> >> On Wed, Apr 27, 2011 at 1:56 PM, S k R p <[email protected]>
>> >> >> wrote:
>> >> >>
>> >> >>>
>> >> >>> Hi All,
>> >> >>>
>> >> >>> I am getting the generated image of Charts , processes etc from
>> >> >>> Java(JFree Charts) to Flex.
>> >> >>> But my requirement is to increase dpi of those charts in flex.
>> >> >>>
>> >> >>> How to do that ...is there any solution for that??
>> >> >>> --
>> >> >>> View this message in context:
>> >> >>>
>> >>
>> http://old.nabble.com/Increase-dpi-of-a-image-%28Chart-%2C-process-%29-tp31485455p31485455.html
>> >> >>> Sent from the Flex India mailing list archive at Nabble.com.
>> >> >>>
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