Number of pixels occupying a string - JavaFX

Hello,
Is there a method in JavaFX to tell us how many pixels occupies a string?.
thanks

Hi,
There's no public API for this, but read this thread : Calculate text with for specific font

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Get number of character within a String by number of pixels

How can i get the number of character within a String
by a width value...
for example..
i have a String = "1234567890abcdefghi.........."
and when i give the width "10"
i will get the String "12".
or the number of charcter..
or somthingggggggggggggggg
please help..
Shay

i solved this...
by doing somthing similar..
i made a for loop on all character
and evrey time i am get a sub string from the 0 till the loop index..
and i am chashing the last string
so when a sub width is greater the the requested width
i am returning the lst cashed result
thanks.. all..

How to find the number of occurence of a string

String str="The AR tech seeks experienced candidates in java,jsp. The candidates should have atleast 1 year of experience in the specified skills.";
here i need to find the number of occurence of the string "experience".
how to find it out?

String str="The AR tech seeks experienced candidates in java,jsp. The candidates should have atleast 1 year of experience in the specified skills.";
String findStr = "experience";
int count = 0;
int index = 0;
while(index != -1) {
index = str.indexOf(findStr, (count == 0 ? 0 : index + findStr.length()));
if(index != -1) {
count++;

How do I reduce the number of pixels in my photos?

How do I reduce the number of pixels in my photos?

Export them at a smaller size:
File -> Export - not the options at 'Size'
Regards
TD

I want to create a HD disc with my Adobe Premier Elements but I am getting low resolution. When I go to share the DVD to disc the form only offers 8pixels at the bottom. How do I burn this DVD in HD with higher number of pixels?

I want to create a HD disc with my Adobe Premier Elements but I am getting low resolution. When I go to share the DVD to disc the form only offers 8pixels at the bottom. How do I burn this DVD in HD with higher number of pixels? I have read other forums on burning HD DVD's but I do not see the option to turn the 8 pi into 40 pi the one forum recommended. I want my DVD to be HD so I may sell these videos online for my business. I can't sell them the low quality they are burning now. Hopefully you can help me. Thanks.

desalvom
Thank you for your reply.
You cannot burn your high resolution video that you can view on your computer to an AVCHD on DVD disc
that will replay through a regular DVD player. But players are marketed under a variety of names with
different support opportunities. One manufacturer may call its product MultiMedia Player, media player, Blu-ray player,
etc.The bottom line is the specifications for each of the players that are candidates for the playback of
the AVCHD format on DVD disc or the format of interest.
If you upload your HD (1920 x 1080) video to YouTube, YouTube converts the video to flash format, but it goes up as the HD video.
But, beware. Look at the YouTube viewing setting when your uploaded video is playing back. The YouTube default is not
HD. It might be 360p, 480p. If you have a 1080p video, then before the YouTube playback, you should be looking
at the video with the YouTube 1080p HD setting for best viewing. That is a YouTube matter.
Best results depend on you
a. setting up the Premiere Elements project preset to match the properties of the source media. That means, if
you have 1080p source, you (manually) or the project (automatically) set the project preset at
NTSC
DSLR
1080p
DSLR [email protected]
or the PAL counterpart, depending on your region need.
b. if you upload your video to YouTube using the Premiere Elements feature, there is a HD preset, but you cannot
customize it.....if you need customization, then you can export your Timeline to a file...in this example
Publish+Share
Computer
AVCHD
with Presets = MP4 H.264 1920 x 1080p30 or PAL counterpart
and then customize the preset under the Advanced Button/Video Tab of that preset. In increase quality, you might look to increase
the Bitrate under Advanced Button/Video Tab settings - without compromising the file size.
Then you would upload that file to YouTube at the YouTube web site.
All of the above are factors that need looking into in order to determine the why for what you wrote
I have published a shortened advertisement video to YouTube- say 5 minutes-
and it is low quality
Often SD video upscaled to HD can present poorly. But, you are dealing with a HD workflow so that should not be introduced into the matter. The setup of the project and
the properties of the source video are important, but let us start with the above and rule in or out those considerations first.
Thank you. As always, any clarification needed, please do not hesitate to ask.
ATR

How to get Length in pixel of a String in j2ee??

Hi guys, im having a problem trying to find out how to get pixels from a string length, but in j2ee, i've researched, but everyone said to use Graphics2D, but since im using j2ee, i dont know how to use this.
For example i found this piece of code, but this doesnt work for me:
public void paint(Graphics g) {
Graphics2D g2d = (Graphics2D)g;
Font font = new Font("Serif", Font.PLAIN, 12);
FontMetrics fontMetrics = g2d.getFontMetrics();
int width = fontMetrics.stringWidth("aString");
int height = fontMetrics.getHeight();
How to get g2d, if i dont have a graphics to send it to the method??
I would be really happy if anyone could send me a example using a javabean.
How to do this guys???? please help me with this guys,thanks.
yellr

im working on a good explanation for this question, im trying to send pics of my programso you understand me pretty well. But a general idea, its im creating dynamically components, like labels, textFields, dropDowns, etc. My problem comes when im adding to form the labels, these labels are going to show the descripcion of the component, which it could be a textField, dropDown, textArea etc.
I put all these components on a gridPanel, for each row i can have severals componets,
I have a gridPanelGeneral which have all other gridPanels, this gridPanelGeneral have gridPanelRow+"numRow"
This gridPanelRow+"numRow" can have severals components which show like columns.
Sincerely i would like to put pictures of the program, so that way you will understand my problem, i need to set the label.setStyle(width:"+numPixelesOfDescriptionOfComponent+"px). To put these labels well, because the user cant see very well the description of the component when i have severals components, each component does have a label for its description. descriptionOfComponent is a string thats why i need to get the pixels of the string.
One question, how do i do put pics on this forum??
Edited by: yellr on Oct 30, 2007 9:56 AM

How to determine the number of pixels of a desired object within a digital photograph?

Hi everyone. I want to determine the number of pixels in an object that is part of a digital photo. I use cameras to film chunks of ice breaking away from ice cliffs or tidewater glaciers. I want to know the size of the ice chunk that my digital photographs capture. I know the width and height of the ice cliff in metres already, so I was thinking that I could convert the equivalent of 1 pixel : ? metres - this is really what I want to do. That way every time I see a chunk of ice breaking off, I can pull up the photo, outline the chunk, calculate how many pixels fill the area of ice removed by the chunk breaking off and convert to metres area 2 - thus giving me my size order. If anyone has ideas on how to do this I would really appreciate it, thanks so much community. I was thinking that Photoshop or Fireworks could help me with this, Ricky

Thanks gener7 and normfb.
The Photoshop help measurement page is brilliant and I think I can use the info on that page to work out my iceberg sizes. Check out the attached photo - you are looking at an ice cliff - essentially the front of a tidewater glacier that flows in the ocean. I'm a research student and I look at the process of iceberg calving - this is the term we use to define the sudden breaking away or detachment of ice chunks from glaciers that end in the sea.
I used the lasso tool to crop the area of ice lost as a single chunk of ice detached from the ice cliff. At the same time I had the histogram window open. The histogram showed me how many pixels were contained in the cropped area. What I need to do now is work out what 1 pixel is equivalent to in metres. Soon I will have a digital elevation model for the ice cliff that will offer centimetre to metre scale resolution of the surface topography - so that should really help. The photographs I have are taken every 30 seconds - which is brilliant for documenting how the geometry of the ice cliff adjusts in response to detaching ice pieces and also because the ice is moving. I am a research student in Canada, and at the time I took the photos we measured that the ice cliff was advancing at a rate of approximately 12 metres per day! That's pretty fast. The flow of the ice is a first order control on the rate of iceberg production - you are essentially pushing ice into the ocean where it breaks off. I'm having to learn everything Photoshop from scratch...so please bare with me because maybe some of the photoshop questions I ask are simple to most!
I noticed the "integrated density" function on the help sheet you suggested. This function also provides the square number of pixels contained in the cropped area I select...I guess this is similar to the histogram right?
Either way - i just need the scale conversion to go from 1 pixel : metres or cm equivalent. At that point I think I will have to manually select every single iceberg event from my time-lapse photos and do this the manual way! I have about 800 events to manually digitise and calculate the area for...
Thanks everyone, Ricky

How do I reduce the number of pixels in a JPG so I can email it?

I am unable to reduce the number of pixels in a JPG so I can email it
== This happened ==
Every time Firefox opened
== 2 days ago

If you do not have an image editor that allows to do that then use one of the online sites to resize images.
* http://www.shrinkpictures.com/
* http://www.picresize.com/

How to measure the number of pixels involved in a selected area of a digital photo?

Hi everyone. I want to determine the number of pixels in an object that is part of a digital photo. I use cameras to film chunks of ice breaking away from ice cliffs or tidewater glaciers. I want to know the size of the ice chunk that my digital photographs capture. I know the width and height of the ice cliff in metres already, so I was thinking that I could convert the equivalent of 1 pixel : ? metres - this is really what I want to do. That way every time I see a chunk of ice breaking off, I can pull up the photo, outline the chunk, calculate how many pixels fill the area of ice removed by the chunk breaking off and convert to metres area 2 - thus giving me my size order. If anyone has ideas on how to do this I would really appreciate it, thanks so much community. I was thinking that Photoshop or Fireworks could help me with this, Ricky

Hi SIlkrooster,
Thanks for responding and giving a suggestion,
I followed your approach (see attached screen shot) , Image, Image Size, and found that approximately 37 pixels = 1 centimetre. So just to be clear - if I measure a straight line with the ruler tool that is say 10cm long, I can simply do: 10 cm * 37 pixels (1cm equivalent) = 370 pixels for the straight line. Do you agree?
Do you agree?

How can I count the number of pixels in a non-rectangular selection?

I need to know the exact number of pixels that I select for a size comparison. It's a non-rectangular selection similar to a cloud.
I'm using CS2 but could upgrade if needed.

Thank You
Michael D. Sutton
(435) 723-3566
(435) 720-2878
[email protected]

How i can count the number of words in a string?

hi, i want to know how to count the number of words in a string
e.g. java is a very powerful computer language.
i will get 7 words.
thanks in advance..

Jverd, this has actually been answered, but due to an
attack of goldie-itis, all the answers were hosed.
The OP did get an answer, though.Yeah, I know. I just didn't know if he saw the answer before it went away.

How can I find out the number of pixels a photo has in i photo.

How can I find out the number of pixels a photo has in iphoto.

Do you mean in iPhoto on the MacBook Pro?
The dimensions (width and height iin pixels)are shown in the "Info" panel - multiply the two numbers:
Regards
Léonie
P.S: on an IOS device you see the same information in iPhoto, when you select the photo in an album and click th Info button ( i ).

Counting the number of pixels in a certain range within an ROI

I am using Vision 6.0 for Visual Basic.
I would like to get a count of the number of pixels within a particular region whose value falls within a certain range (e.g., the number of pixels with values between 86 and 255).
Can anyone tell me how I can do this?
Thanks.

bep -
Have you looked at the Histogram example? It should be under the Analysis directory wherever the examples are.
After doing the Histogram like the example does, you will have a CWIMAQHistogramReport object (let's call it HistogramReport) that contains the result of the Histogram. To access the 1-dimensional array containing the count in each bin, use the Histogram property on the CWIMAQHistogramReportItem that the HistogramReport contains.
To use this array, however, you will need to assign it to a variant. So, to find the number of pixels that are in the 5th bin (with the default options, this will be the pixels that have exactly the value 4), do
Dim Histogram As Variant
Dim HistogramReport As New CWIMAQHistogramReport
CWIMA
QVision1.Histogram2 CWIMAQViewer1.Image, HistogramReport
Histogram = HistogramReport(1).Histogram
' Now Histogram(5) contains the number of pixels in the 5th bin.
Let me know if this helps.
Greg Stoll
IMAQ R & D
National Instruments
Greg Stoll
LabVIEW R&D

Number of characters in a string

Hi,
I need to find the number of characters in a string. For instance, i have a string type variable with the value "ABAP". How can i know how many letters "A" there are in that string? Is there any FM that does this?
Cheers,
Roberto

Hi,
you can make use of string operation FIND as:
DATA: text1 TYPE string VALUE `A`,
         text TYPE string,
      off TYPE i,
      moff TYPE i,
      mlen TYPE i.
off = 0.
WHILE sy-subrc = 0.
FIND text1 IN SECTION OFFSET off OF
       `ABAP`
       MATCH OFFSET moff
       MATCH LENGTH mlen.
IF sy-subrc = 0.
    WRITE / moff.
    off = moff + mlen.
ENDIF.
ENDWHILE.

How can I export the number of pixels of each layer into an excel file?

I would like to export the number of pixels that each layer of an image contains into excel. How can I do this?
Secondly, as I need to do this with several images, is there any way to name the layers so that all layers with let's say for example the name "yellow" appear in the same column in excel?
Some background information on why I need to do this... I would like to know how many percent of an image are yellow and have therefore created layers of one image for each color it contains.
Thanks for your help!!!

Maybe my question was a bit unclear. I do not want to find out the number of pixels of a color in a layer but the number of pixels of the complete layer.
What color these layers are is a different question. I am using images with a very limited range of colors (sort of like the image above but with about 10 colors). I have seperated these colors into layers and now need to count the pixels of each layer and export them.
You can record number of pixels/layer into the Measurement Log, then export data to Excel. But I'm not sure how to automate that without scripting.
Does anyone know how to do this?
For normal artLayers it is somewhat easy to get the number of pixels in the layer. But that is just how many pixels are in the layer.
But that is exactly what I need to know, how many pixels are in the layer. I know how to find this out by looking at the histogram of the selection. But I want to export this information of all layers at once into an excel or text file. Any ideas on how to automate this with or without scripting?
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Number of pixels occupying a string - JavaFX

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