Class FeGaussianBlur

java.lang.Object

com.github.weisj.jsvg.nodes.AbstractSVGNode

com.github.weisj.jsvg.nodes.filter.AbstractFilterPrimitive

com.github.weisj.jsvg.nodes.filter.FeGaussianBlur

All Implemented Interfaces:

FilterPrimitive, SVGNode

@ElementCategories(FilterPrimitive)
@PermittedContent(anyOf={Animate.class,Set.class})
public final class FeGaussianBlur
extends AbstractFilterPrimitive

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	FeGaussianBlur.MixedQualityConvolveOperation

Field Summary

Fields

Modifier and Type	Field	Description
private static final double	BOX_BLUR_APPROXIMATION_THRESHOLD
private EdgeMode	edgeMode
private static final float	KERNEL_PRECISION
private boolean	onlyAlpha
private static final double	SQRT_2_PI
private float[]	stdDeviation
static final String	TAG
private static final double	THREE_QUARTER_SQRT_2_PI
private Kernel	xBlur
private double	xCurrent
private Kernel	yBlur
private double	yCurrent

Constructor Summary

Constructors

Constructor	Description
FeGaussianBlur()

Method Summary

Modifier and Type	Method	Description
void	applyFilter(@NotNull RenderContext context, @NotNull FilterContext filterContext)
void	build(@NotNull AttributeNode attributeNode)
private double[]	computeAbsoluteStdDeviation(@Nullable AffineTransform at)
private static float[]	computeGaussianKernelData(int diameter, double standardDeviation)
private @NotNull Kernel	createConvolveKernel(int diameter, double sigma, boolean horizontal)
static int	kernelDiameterForStandardDeviation(double standardDeviation)
void	layoutFilter(@NotNull RenderContext context, @NotNull FilterLayoutContext filterLayoutContext)
private static float	normalConvolve(float x, double standardDeviation)
void	setOnlyAlpha(boolean onlyAlpha)
@NotNull String	tagName()

Methods inherited from class AbstractFilterPrimitive

colorInterpolation, height, impl, width, x, y

Methods inherited from class AbstractSVGNode

addContent, id, toString

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface FilterPrimitive

isValid

Field Details

TAG

public static final String TAG

See Also:

• Constant Field Values

SQRT_2_PI

private static final double SQRT_2_PI

THREE_QUARTER_SQRT_2_PI

private static final double THREE_QUARTER_SQRT_2_PI

KERNEL_PRECISION

private static final float KERNEL_PRECISION

See Also:

• Constant Field Values

BOX_BLUR_APPROXIMATION_THRESHOLD

private static final double BOX_BLUR_APPROXIMATION_THRESHOLD

See Also:

• Constant Field Values

stdDeviation

private float[] stdDeviation

edgeMode

private EdgeMode edgeMode

xCurrent

private double xCurrent

yCurrent

private double yCurrent

xBlur

private Kernel xBlur

yBlur

private Kernel yBlur

onlyAlpha

private boolean onlyAlpha

Constructor Details

FeGaussianBlur

public FeGaussianBlur()

Method Details

tagName

@NotNull
public @NotNull String tagName()

build

public void build(@NotNull
 @NotNull AttributeNode attributeNode)

Specified by:

build in interface SVGNode

Overrides:

build in class AbstractFilterPrimitive

setOnlyAlpha

@Internal
public void setOnlyAlpha(boolean onlyAlpha)

computeAbsoluteStdDeviation

private double[] computeAbsoluteStdDeviation(@Nullable
 @Nullable AffineTransform at)

layoutFilter

public void layoutFilter(@NotNull
 @NotNull RenderContext context,
 @NotNull
 @NotNull FilterLayoutContext filterLayoutContext)

applyFilter

public void applyFilter(@NotNull
 @NotNull RenderContext context,
 @NotNull
 @NotNull FilterContext filterContext)

createConvolveKernel

@NotNull
private @NotNull Kernel createConvolveKernel(int diameter,
 double sigma,
 boolean horizontal)

normalConvolve

private static float normalConvolve(float x,
 double standardDeviation)

computeGaussianKernelData

private static float[] computeGaussianKernelData(int diameter,
 double standardDeviation)

kernelDiameterForStandardDeviation

public static int kernelDiameterForStandardDeviation(double standardDeviation)