Hi

We are trying to print WMF images in MAC, so we are loading the images and create Buffered image for printing. Below is the code snippet which is causing the problem.

 WmfMetafile emfImg=new WmfMetafile(new ByteArrayInputStream(stMetaFileData));
  int ht=module.getHeight();
  int w=module.getWidth();
  
  double reductionHt=(ht/emfImg.getHeight());
  double reductionW=(w/emfImg.getWidth());
  
  BufferedImage imgBuffer=new BufferedImage((int)Math.ceil(emfImg.getWidth()),(int)Math.ceil(emfImg.getHeight()),BufferedImage.TYPE_3BYTE_BGR);

Exception is thrown on creation of buffered image.(see the below stack trace). When i debugged the code i found the image dimension was 150912 X 93491. emfImg.getHeight() method was returning 150912 and emfImg.getWidth() method was returning 93491. When i see the image in windows it shows dimension 1024 X 768 the file size is 1 KB.

java.lang.NegativeArraySizeException
 at java.awt.image.DataBufferByte.<init>(DataBufferByte.java:42)
 at
java.awt.image.Raster.createInterleavedRaster(Raster.java:253)
 at java.awt.image.BufferedImage.<init>(BufferedImage.java:370)
 at
com.newsamerica.smartsource.presentation.CCMMetafile.showAt(CCMMetafile.
java:56)
 at
com.newsamerica.smartsource.presentation.CCMOffer.showAt(CCMOffer.java:7
4)
 at
com.newsamerica.smartsource.presentation.CCMManager.print(CCMManager.jav
a:423)
 at
sun.print.RasterPrinterJob.printPage(RasterPrinterJob.java:1790)
 at sun.print.RasterPrinterJob.print(RasterPrinterJob.java:1338)
 at sun.print.UnixPrintJob.printableJob(UnixPrintJob.java:618)
 at sun.print.UnixPrintJob.print(UnixPrintJob.java:475)
 at
com.newsamerica.smartsource.presentation.CCMManager.printCoupons(CCMMana
ger.java:223)
 at

Any input or direction to solve this issue will be appreciated

regards

Premkumar

 

 

 

 

Dear Premkumar

I have run the following code on Windows XP and Aspose.Metafiles 1.2.4.0 and my finding is that Aspose.Metafiles returning the correct image height and width. I have attached the image, please check it on your side. Also, let me know, if the problem occurs for all images on MAC or with specific images.

String strPath="D:\\source\\wmfs\\";

WmfMetafile wmf = new WmfMetafile(new FileInputStream(new File(strPath + "1.wmf")));

double reductionHt=wmf.getHeight();

double reductionW=wmf.getWidth();

---

Many Thanks and Kind Regards,

Shakeel Faiz
Support Engineer
Aspose Tyumen Team

Hello Premkumar,

Non-placeable Wmf metafiles don't contain any exact size in the file.
They usually have size equal to screen resolution.

Could you try to call these lines of code on Mac and check result.
float dpi = Toolkit.getDefaultToolkit().getScreenResolution();
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();

I'm not sure but most probably you will get screen size 150912 x 93491.
So solution will be very simple, just divide width and height by some
appropriate constant, for example 144 (in case size returned in twips).

---

Alexey Zhilin
Team Leader
Aspose Tyumen Team
About Us
Contact Us

Hi  Faiz,

The problem is not the loading the WMF image,  Once the image gets loaded in i am trying to create a Buffered image(Step 8 in below snippet) equal to size of the WMF height and width. But this step creates an NegativeArraySizeException. I guess it because of the height(93491) and width(150912) which too large and i get Out of Memory excetion in applet. This happens from some images.

byte [] stMetaFileData;

......

......

1. WmfMetafile emfImg=new WmfMetafile(new ByteArrayInputStream(stMetaFileData));
2.  int ht=module.getHeight();
3.  int w=module.getWidth();
4  
5  double reductionHt=(ht/emfImg.getHeight());
6 double reductionW=(w/emfImg.getWidth());
7  
8  BufferedImage imgBuffer=new BufferedImage((int)Math.ceil(emfImg.getWidth()),(int)Math.ceil(emfImg.getHeight()),BufferedImage.TYPE_3BYTE_BGR);

I have few more questions to ask

1. What is the method should i use to get the image dimension, should i use getBounds() or the getHeight() and getWidth() methods.

2. How to used apose jar when using applet in jar, when in put the aspose jar inside applet jar its unable to detect the classes. Kindly suggest the the best way to use aspose library in deployable applet jar.

regards

Premkumar

 

 

 

Hi Zhilin,

I tried to load the same image i both  windows and MAC. The getHeight() method was returning 93491 and the getWidth() method was returning 150912. The getBounds() was having a value [0,0,150912,93491]. Is it a problem with the image?. There are some other image for which i was getting the bounds as [0,0,1024,768].

Thanks in advance

Premkumar

As I wrote in previous post wmf files can be placeable and non-placeable. Placeable metafiles have exact image size in the header. Non-placeable don't have it. So if size is too large use the solution I suggested before.

About 2 other you questions.

1. You can find answer in the api reference:
  /**
   * Returns metafile's bounds.<br>
   * Note: this rectangle is not an image size. To obtain image size and position use
   * getMinX(), getMinY(), getWidth() and getHeight().
   *
   * @return metafile's bounds.
   */
  public Rectangle getBounds()

2. Try to google how to use several jar files in the applets and about jar caching.

---

Alexey Zhilin
Team Leader
Aspose Tyumen Team
About Us
Contact Us

Hi Zhilin,

 Many Thanks for your quick response. I would try as per your suggession.

regards

Premkumar

 

I tried with aspose wmfmeta file to read the word art file in word document , but failed to do so. as null pointer returned.

can u suggest one way to do this

WordArt object is not a metafile.

---

Alexey Zhilin
Team Leader
Aspose Tyumen Team
About Us
Contact Us

so how to read a wordart file in word document

I think you should write this question in the Aspose.Words forum. Just keep in mind,
you should ask about WordArt but not about metafiles like you asked here.

---

Alexey Zhilin
Team Leader
Aspose Tyumen Team
About Us
Contact Us