public static class PdfShading.FreeFormGouraudShadedTriangleMesh extends PdfShading
PdfShading
class and is in charge of Shading Dictionary with free-form Gouraud-shaded triangle mesh type. The area to be shaded is defined by a path composed entirely of triangles. The colour at each vertex of the triangles is specified, and a technique known as Gouraud interpolation is used to colour the interiors. The object shall be represented as stream containing a sequence of vertex data. Each vertex is specified by the following values, in the order shown: f x y c1 … cn where: f - the vertex’s edge flag, that determines the vertex is connected to other vertices of the triangle mesh. For full description Paragph 8.7.4.5.5
x, y - vertex’s horizontal and vertical coordinates, expressed in the shading’s target coordinate space. c1…cn - vertex’s colour components. If the shading dictionary includes a Function entry, only a single parametric value, t, shall be specified for each vertex in place of the colour components c1…cn.
PdfShading.Axial, PdfShading.CoonsPatchMesh, PdfShading.FreeFormGouraudShadedTriangleMesh, PdfShading.FunctionBased, PdfShading.LatticeFormGouraudShadedTriangleMesh, PdfShading.Radial, PdfShading.TensorProductPatchMesh
Constructor and Description |
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FreeFormGouraudShadedTriangleMesh(PdfColorSpace cs, int bitsPerCoordinate, int bitsPerComponent, int bitsPerFlag, float[] decode)
Creates the new instance of the class.
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FreeFormGouraudShadedTriangleMesh(PdfColorSpace cs, int bitsPerCoordinate, int bitsPerComponent, int bitsPerFlag, PdfArray decode)
Creates the new instance of the class.
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FreeFormGouraudShadedTriangleMesh(PdfStream pdfStream)
Deprecated.
Intended only for private use. You should use
PdfShading.makeShading(PdfDictionary) instead.
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Modifier and Type | Method and Description |
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int |
getBitsPerComponent()
Gets the number of bits used to represent each colour component.
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int |
getBitsPerCoordinate()
Gets the number of bits used to represent each vertex coordinate.
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int |
getBitsPerFlag()
Gets the number of bits used to represent the edge flag for each vertex.
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PdfArray |
getDecode()
Gets the PdfArray of numbers specifying how to map vertex coordinates and colour components into the appropriate ranges of values.
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void |
setBitsPerComponent(int bitsPerComponent)
Sets the number of bits used to represent each colour component.
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void |
setBitsPerCoordinate(int bitsPerCoordinate)
Sets the number of bits used to represent each vertex coordinate.
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void |
setBitsPerFlag(int bitsPerFlag)
Sets the number of bits used to represent the edge flag for each vertex.
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void |
setDecode(float[] decode)
Sets the float[] of numbers specifying how to map vertex coordinates and colour components into the appropriate ranges of values.
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void |
setDecode(PdfArray decode)
Sets the PdfArray of numbers specifying how to map vertex coordinates and colour components into the appropriate ranges of values.
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flush, getColorSpace, getFunction, getShadingType, isWrappedObjectMustBeIndirect, makeShading, setFunction, setFunction
ensureObjectIsAddedToDocument, getPdfObject, isFlushed, makeIndirect, makeIndirect, markObjectAsIndirect, setForbidRelease, setModified, setPdfObject, unsetForbidRelease
public FreeFormGouraudShadedTriangleMesh(PdfStream pdfStream)
PdfShading.makeShading(PdfDictionary)
instead.
PdfStream
object.
pdfStream
- PdfStream
from which the instance is created.
public FreeFormGouraudShadedTriangleMesh(PdfColorSpace cs, int bitsPerCoordinate, int bitsPerComponent, int bitsPerFlag, float[] decode)
cs
- the PdfColorSpace
object in which colour values shall be expressed. The special Pattern space isn't excepted.
bitsPerCoordinate
- the number of bits used to represent each vertex coordinate. The value shall be 1, 2, 4, 8, 12, 16, 24, or 32.
bitsPerComponent
- the number of bits used to represent each colour component. The value shall be 1, 2, 4, 8, 12, or 16.
bitsPerFlag
- the number of bits used to represent the edge flag for each vertex. The value of BitsPerFlag shall be 2, 4, or 8, but only the least significant 2 bits in each flag value shall be used. The value for the edge flag shall be 0, 1, or 2.
decode
- the int[]
of numbers specifying how to map vertex coordinates and colour components into the appropriate ranges of values. The ranges shall be specified as follows: [x_min x_max y_min y_max c1_min c1_max … cn_min cn_max]. Only one pair of color values shall be specified if a Function entry is present.
public FreeFormGouraudShadedTriangleMesh(PdfColorSpace cs, int bitsPerCoordinate, int bitsPerComponent, int bitsPerFlag, PdfArray decode)
cs
- the PdfColorSpace
object in which colour values shall be expressed. The special Pattern space isn't excepted.
bitsPerCoordinate
- the number of bits used to represent each vertex coordinate. The value shall be 1, 2, 4, 8, 12, 16, 24, or 32.
bitsPerComponent
- the number of bits used to represent each colour component. The value shall be 1, 2, 4, 8, 12, or 16.
bitsPerFlag
- the number of bits used to represent the edge flag for each vertex. The value of BitsPerFlag shall be 2, 4, or 8, but only the least significant 2 bits in each flag value shall be used. The value for the edge flag shall be 0, 1, or 2.
decode
- the PdfArray
of numbers specifying how to map vertex coordinates and colour components into the appropriate ranges of values. The ranges shall be specified as follows: [x_min x_max y_min y_max c1_min c1_max … cn_min cn_max]. Only one pair of color values shall be specified if a Function entry is present.
public int getBitsPerCoordinate()
public void setBitsPerCoordinate(int bitsPerCoordinate)
bitsPerCoordinate
- the number of bits to be set. Shall be 1, 2, 4, 8, 12, 16, 24, or 32.
public int getBitsPerComponent()
public void setBitsPerComponent(int bitsPerComponent)
bitsPerComponent
- the number of bits to be set. Shall be 1, 2, 4, 8, 12, or 16.
public int getBitsPerFlag()
public void setBitsPerFlag(int bitsPerFlag)
bitsPerFlag
- the number of bits to be set. Shall be 2, 4 or 8.
public PdfArray getDecode()
PdfArray
of numbers specifying how to map vertex coordinates and colour components into the appropriate ranges of values. The ranges shall be specified as follows: [x_min x_max y_min y_max c1_min c1_max … cn_min cn_max]. Only one pair of color values shall be specified if a Function entry is present.
PdfArray
Decode object.
public void setDecode(float[] decode)
float[]
of numbers specifying how to map vertex coordinates and colour components into the appropriate ranges of values. The ranges shall be specified as follows: [x_min x_max y_min y_max c1_min c1_max … cn_min cn_max]. Only one pair of color values shall be specified if a Function entry is present.
decode
- the float[]
of Decode object to set.
public void setDecode(PdfArray decode)
PdfArray
of numbers specifying how to map vertex coordinates and colour components into the appropriate ranges of values. The ranges shall be specified as follows: [x_min x_max y_min y_max c1_min c1_max … cn_min cn_max]. Only one pair of color values shall be specified if a Function entry is present.
decode
- the PdfArray
Decode object to set.
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