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https://issues.apache.org/jira/browse/PDFBOX-1442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13888954#comment-13888954
]
Tilman Hausherr edited comment on PDFBOX-1442 at 2/2/14 5:40 PM:
-----------------------------------------------------------------
A possible clue?
While searching for problems with a different file (ch14.pdf) I noticed that
the shading parameters were always the same. Here's an output for this file:
{code}
PDShadingResources:296 - new PDShadingTypeShading:
org.apache.pdfbox.pdmodel.graphics.shading.PDShadingType2@528f1577
PDShadingResources:297 - new
PDShadingTypeCOSDictionary{(COSName{Coords}:COSArray{[COSInt{0}, COSInt{240},
COSInt{0}, COSInt{240}]}) (COSName{ColorSpace}:COSName{DeviceRGB})
(COSName{ShadingType}:COSInt{2}) (COSName{Extend}:COSArray{[true, true]})
(COSName{Function}:COSDictionary{(COSName{Domain}:COSArray{[COSInt{0},
COSInt{1}]}) (COSName{FunctionType}:COSInt{2}) (COSName{N}:COSInt{1})
(COSName{C1}:COSArray{[COSInt{1}, COSInt{1}, COSInt{1}]})
(COSName{C0}:COSArray{[COSInt{1}, COSInt{1}, COSInt{1}]}) }) }
PDShadingResources:296 - new PDShadingTypeShading:
org.apache.pdfbox.pdmodel.graphics.shading.PDShadingType2@5a4bb836
PDShadingResources:297 - new
PDShadingTypeCOSDictionary{(COSName{Coords}:COSArray{[COSInt{0}, COSInt{240},
COSInt{0}, COSInt{240}]}) (COSName{ColorSpace}:COSName{DeviceRGB})
(COSName{ShadingType}:COSInt{2}) (COSName{Extend}:COSArray{[true, true]})
(COSName{Function}:COSDictionary{(COSName{Domain}:COSArray{[COSInt{0},
COSInt{1}]}) (COSName{FunctionType}:COSInt{2}) (COSName{N}:COSInt{1})
(COSName{C1}:COSArray{[COSInt{1}, COSInt{1}, COSInt{1}]})
(COSName{C0}:COSArray{[COSInt{1}, COSInt{1}, COSInt{1}]}) }) }
PDShadingResources:296 - new PDShadingTypeShading:
org.apache.pdfbox.pdmodel.graphics.shading.PDShadingType2@48a5598d
PDShadingResources:297 - new
PDShadingTypeCOSDictionary{(COSName{Coords}:COSArray{[COSInt{0}, COSInt{240},
COSInt{0}, COSInt{240}]}) (COSName{ColorSpace}:COSName{DeviceRGB})
(COSName{ShadingType}:COSInt{2}) (COSName{Extend}:COSArray{[true, true]})
(COSName{Function}:COSDictionary{(COSName{Domain}:COSArray{[COSInt{0},
COSInt{1}]}) (COSName{FunctionType}:COSInt{2}) (COSName{N}:COSInt{1})
(COSName{C1}:COSArray{[COSInt{1}, COSInt{1}, COSInt{1}]})
(COSName{C0}:COSArray{[COSInt{1}, COSInt{1}, COSInt{1}]}) }) }
{code}
So new PDShadingTypeShading() is called only 3 times for this file, although
there are 66 shading objects in the PDF.
Same observation for the file FUNSH01.pdf, files to be found in PDFBOX-615.
was (Author: tilman):
A possible clue?
While searching for problems with a different file (ch14.pdf) I noticed that
the shading parameters were always the same. Here's an output for this file:
{code}
PDShadingResources:296 - new PDShadingTypeShading:
org.apache.pdfbox.pdmodel.graphics.shading.PDShadingType2@528f1577
PDShadingResources:297 - new
PDShadingTypeCOSDictionary{(COSName{Coords}:COSArray{[COSInt{0}, COSInt{240},
COSInt{0}, COSInt{240}]}) (COSName{ColorSpace}:COSName{DeviceRGB})
(COSName{ShadingType}:COSInt{2}) (COSName{Extend}:COSArray{[true, true]})
(COSName{Function}:COSDictionary{(COSName{Domain}:COSArray{[COSInt{0},
COSInt{1}]}) (COSName{FunctionType}:COSInt{2}) (COSName{N}:COSInt{1})
(COSName{C1}:COSArray{[COSInt{1}, COSInt{1}, COSInt{1}]})
(COSName{C0}:COSArray{[COSInt{1}, COSInt{1}, COSInt{1}]}) }) }
PDShadingResources:296 - new PDShadingTypeShading:
org.apache.pdfbox.pdmodel.graphics.shading.PDShadingType2@5a4bb836
PDShadingResources:297 - new
PDShadingTypeCOSDictionary{(COSName{Coords}:COSArray{[COSInt{0}, COSInt{240},
COSInt{0}, COSInt{240}]}) (COSName{ColorSpace}:COSName{DeviceRGB})
(COSName{ShadingType}:COSInt{2}) (COSName{Extend}:COSArray{[true, true]})
(COSName{Function}:COSDictionary{(COSName{Domain}:COSArray{[COSInt{0},
COSInt{1}]}) (COSName{FunctionType}:COSInt{2}) (COSName{N}:COSInt{1})
(COSName{C1}:COSArray{[COSInt{1}, COSInt{1}, COSInt{1}]})
(COSName{C0}:COSArray{[COSInt{1}, COSInt{1}, COSInt{1}]}) }) }
PDShadingResources:296 - new PDShadingTypeShading:
org.apache.pdfbox.pdmodel.graphics.shading.PDShadingType2@48a5598d
PDShadingResources:297 - new
PDShadingTypeCOSDictionary{(COSName{Coords}:COSArray{[COSInt{0}, COSInt{240},
COSInt{0}, COSInt{240}]}) (COSName{ColorSpace}:COSName{DeviceRGB})
(COSName{ShadingType}:COSInt{2}) (COSName{Extend}:COSArray{[true, true]})
(COSName{Function}:COSDictionary{(COSName{Domain}:COSArray{[COSInt{0},
COSInt{1}]}) (COSName{FunctionType}:COSInt{2}) (COSName{N}:COSInt{1})
(COSName{C1}:COSArray{[COSInt{1}, COSInt{1}, COSInt{1}]})
(COSName{C0}:COSArray{[COSInt{1}, COSInt{1}, COSInt{1}]}) }) }
{code}
So new PDShadingTypeShading() is called only 3 times for this file, although
there are 66 shading objects in the PDF.
Same observation for the files RGBCUBE.pdf and FUNSH01.pdf, files to be found
in PDFBOX-615.
> bar chart converted from PDF is totally a black area.
> -----------------------------------------------------
>
> Key: PDFBOX-1442
> URL: https://issues.apache.org/jira/browse/PDFBOX-1442
> Project: PDFBox
> Issue Type: Bug
> Components: PDFReader
> Affects Versions: 1.7.1
> Reporter: James Zhou
> Labels: shadingpattern
> Attachments: clientfocus.PNG, clientfocus.pdf
>
>
> The bar charts converted from PDF is totally a black area. The code is as
> following:
>
> PDFImageWriter imageWriter = new PDFImageWriter();
> boolean success = imageWriter.writeImage(document,
> imageFormat, password,
> startPage, endPage, outputPrefix, imageType,
> resolution);
> if (!success)
> {
> logger.error( "Error: no writer found for image format
> '"
> + imageFormat + "'" );
> System.exit(1);
>
> }
> I will attach the ppt and PNG files later
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