Package org.apache.fop.render.pdf
Class CTMHelper
- java.lang.Object
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- org.apache.fop.render.pdf.CTMHelper
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public final class CTMHelper extends java.lang.Object
CTMHelper converts FOP transformation matrices to those suitable for use by the PDFRenderer. The e and f elements of the matrix will be divided by 1000 as FOP uses millipoints as it's default user space and PDF uses points.- See Also:
CTM
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static double[]
toPDFArray(CTM sourceMatrix)
Creates an array of six doubles from the source CTM.static CTM
toPDFCTM(CTM sourceMatrix)
Creates a new CTM based in the sourceMatrix.static java.lang.String
toPDFString(java.awt.geom.AffineTransform transform, boolean convertMillipoints)
Converts the AffineTransform instance to a string for use in the PDFRenderer cm operations.static java.lang.String
toPDFString(CTM sourceMatrix)
Converts the sourceMatrix to a string for use in the PDFRenderer cm operations.
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Method Detail
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toPDFString
public static java.lang.String toPDFString(CTM sourceMatrix)
Converts the sourceMatrix to a string for use in the PDFRenderer cm operations.
For example:
org.apache.fop.area.CTM ctm = new org.apache.fop.area.CTM(1.0, 0.0, 0.0, 1.0, 1000.0, 1000.0); String pdfMatrix = org.apache.fop.render.pdf.CTMHelper.toPDFString(ctm);
will return the string "1.0 0.0 0.0 1.0 1.0 1.0
".- Parameters:
sourceMatrix
- - The matrix to convert.- Returns:
- a space seperated string containing the matrix elements.
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toPDFString
public static java.lang.String toPDFString(java.awt.geom.AffineTransform transform, boolean convertMillipoints)
Converts the AffineTransform instance to a string for use in the PDFRenderer cm operations.
- Parameters:
transform
- The matrix to convert.convertMillipoints
- Indicates that the matrix needs to be converted from millipoints to points.- Returns:
- a space seperated string containing the matrix elements.
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toPDFCTM
public static CTM toPDFCTM(CTM sourceMatrix)
Creates a new CTM based in the sourceMatrix.
For example:
org.apache.fop.area.CTM inCTM = new org.apache.fop.area.CTM(1.0, 0.0, 0.0, 1.0, 1000.0, 1000.0); org.apache.fop.area.CTM outCTM = org.apache.fop.render.pdf.CTMHelper.toPDFCTM(ctm);
will return a new CTM where a == 1.0, b == 0.0, c == 0.0, d == 1.0, e == 1.0 and f == 1.0.- Parameters:
sourceMatrix
- - The matrix to convert.- Returns:
- a new converted matrix.
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toPDFArray
public static double[] toPDFArray(CTM sourceMatrix)
Creates an array of six doubles from the source CTM.
For example:
org.apache.fop.area.CTM inCTM = new org.apache.fop.area.CTM(1.0, 0.0, 0.0, 1.0, 1000.0, 1000.0); double matrix[] = org.apache.fop.render.pdf.CTMHelper.toPDFArray(ctm);
will return a new array where matrix[0] == 1.0, matrix[1] == 0.0, matrix[2] == 0.0, matrix[3] == 1.0, matrix[4] == 1.0 and matrix[5] == 1.0.- Parameters:
sourceMatrix
- - The matrix to convert.- Returns:
- an array of doubles containing the converted matrix.
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