Package org.openscience.cdk.depict

Class Depiction

java.lang.Object

org.openscience.cdk.depict.Depiction

public abstract class Depiction
extends Object

Base class of a pre-rendered depiction. The class allows introspection of depiction size (decided at generation time) and serialization to raster and vector graphic formats.

Author:

John May

Field Summary

Fields

Modifier and Type	Field	Description
protected static final double	DEFAULT_PADDING_FACTOR	When no fixed padding value is specified we use margin multiplied by this value.
static final String	EPS_FMT	Encapsulated PostScript (EPS) format key.
static final String	GIF_FMT	Graphics Interchange Format (GIF) format key.
static final String	JPG_FMT	Joint Photographic Experts Group (JPG) format key.
protected static final double	MM_TO_POINT	For converting MM coordinates to PS Point (1/72 inch)
protected final RendererModel	model
static final String	PDF_FMT	Portable Document Format (PDF) format key.
static final String	PNG_FMT	Portable Network Graphics (PNG) format key.
static final String	PS_FMT	PostScript (PS) format key.
static final String	SVG_FMT	Structured Vector Graphics (SVG) format key.
static final String	UNITS_MM	Units in MM (specific to SVG).
static final String	UNITS_PX	Units in PX (specific to SVG).

Method Summary

Modifier and Type	Method	Description
protected double	calcFitting(org.openscience.cdk.depict.Dimensions srcDim, org.openscience.cdk.depict.Dimensions dstDim, double margin)
protected final void	draw(IDrawVisitor visitor, double zoom, Bounds bounds, Rectangle2D viewBounds)	Low-level draw method used by other rendering methods.
final List<String>	listFormats()	List the available formats that can be rendered.
protected void	svgStyleCache(String fmt, double rescale, org.openscience.cdk.depict.SvgDrawVisitor visitor, List<? extends IRenderingElement> elements)
final String	toEpsStr()	Render the image to an EPS (Encapsulated PostScript) format string.
abstract BufferedImage	toImg()	Render the depiction to a Java AWT BufferedImage.
final byte[]	toPdf()	Render the image to an PDF format byte array.
final String	toPdfStr()	Render the image to an PDF format string.
final String	toPsStr()	Render the image to an PS (PostScript) format string.
final String	toSvgStr()	Render the image to an SVG image.
final String	toSvgStr(String units)	Render the image to an SVG image.
final void	writeTo(String path)	Write the depiction to the provided file path, the format is determined by the path suffix.
final void	writeTo(String fmt, File file)	Write the depiction to the provided output stream.
final void	writeTo(String fmt, OutputStream out)	Write the depiction to the provided output stream.
final void	writeTo(String fmt, String path)	Write the depiction to the provided file path.

Methods inherited from class java.lang.Object

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

Field Details

MM_TO_POINT

protected static final double MM_TO_POINT

For converting MM coordinates to PS Point (1/72 inch)

See Also:

• Constant Field Values

DEFAULT_PADDING_FACTOR

protected static final double DEFAULT_PADDING_FACTOR

When no fixed padding value is specified we use margin multiplied by this value.

See Also:

• Constant Field Values

SVG_FMT

public static final String SVG_FMT

Structured Vector Graphics (SVG) format key.

See Also:

• Constant Field Values

PS_FMT

public static final String PS_FMT

PostScript (PS) format key.

See Also:

• Constant Field Values

EPS_FMT

public static final String EPS_FMT

Encapsulated PostScript (EPS) format key.

See Also:

• Constant Field Values

PDF_FMT

public static final String PDF_FMT

Portable Document Format (PDF) format key.

See Also:

• Constant Field Values

JPG_FMT

public static final String JPG_FMT

Joint Photographic Experts Group (JPG) format key.

See Also:

• Constant Field Values

PNG_FMT

public static final String PNG_FMT

Portable Network Graphics (PNG) format key.

See Also:

• Constant Field Values

GIF_FMT

public static final String GIF_FMT

Graphics Interchange Format (GIF) format key.

See Also:

• Constant Field Values

UNITS_MM

public static final String UNITS_MM

Units in MM (specific to SVG).

See Also:

• Constant Field Values

UNITS_PX

public static final String UNITS_PX

Units in PX (specific to SVG).

See Also:

• Constant Field Values

model

protected final RendererModel model

Method Details

toImg

public abstract BufferedImage toImg()

Render the depiction to a Java AWT BufferedImage.

Returns:

AWT buffered image

toSvgStr

public final String toSvgStr()

Render the image to an SVG image.

Returns:

svg XML content

toSvgStr

public final String toSvgStr(String units)

Render the image to an SVG image.

Parameters:

units - the units for SVG - 'px' or 'mm'

Returns:

svg XML content

toPsStr

public final String toPsStr()

Render the image to an PS (PostScript) format string.

Returns:

PS content

toEpsStr

public final String toEpsStr()

Render the image to an EPS (Encapsulated PostScript) format string.

Returns:

EPS content

toPdfStr

public final String toPdfStr()

Render the image to an PDF format string.

Returns:

pdf content

toPdf

public final byte[] toPdf()

Render the image to an PDF format byte array.

Returns:

pdf content

listFormats

public final List<String> listFormats()

List the available formats that can be rendered.

Returns:

supported formats

writeTo

public final void writeTo(String fmt,
 OutputStream out)
                   throws IOException

Write the depiction to the provided output stream.

Parameters:

fmt - format

out - output stream

Throws:

IOException - depiction could not be written, low level IO problem

See Also:

• listFormats()

writeTo

public final void writeTo(String fmt,
 File file)
                   throws IOException

Write the depiction to the provided output stream.

Parameters:

fmt - format

file - output destination

Throws:

IOException - depiction could not be written, low level IO problem

See Also:

• listFormats()

writeTo

public final void writeTo(String fmt,
 String path)
                   throws IOException

Write the depiction to the provided file path.

Parameters:

fmt - format

path - output destination path

Throws:

IOException - depiction could not be written, low level IO problem

See Also:

• listFormats()

writeTo

public final void writeTo(String path)
                   throws IOException

Write the depiction to the provided file path, the format is determined by the path suffix.

Parameters:

path - output destination path

Throws:

IOException - depiction could not be written, low level IO problem

See Also:

• listFormats()

draw

protected final void draw(IDrawVisitor visitor,
 double zoom,
 Bounds bounds,
 Rectangle2D viewBounds)

Low-level draw method used by other rendering methods.

Parameters:

visitor - the draw visitor

bounds - a bound rendering element

zoom - if the diagram is zoomed at all

viewBounds - the view bounds - the root will be centered in the bounds

svgStyleCache

protected void svgStyleCache(String fmt,
 double rescale,
 org.openscience.cdk.depict.SvgDrawVisitor visitor,
 List<? extends IRenderingElement> elements)

calcFitting

protected double calcFitting(org.openscience.cdk.depict.Dimensions srcDim,
 org.openscience.cdk.depict.Dimensions dstDim,
 double margin)