| java.lang.Object
 org.geotools.event.AbstractGTComponent
org.geotools.styling.RasterSymbolizerImpl
| Method Summary | |
| public void | accept(StyleVisitor visitor)
| | public Object | clone()
Creates a deep copy clone. | | public ChannelSelection | getChannelSelection()
The ChannelSelection element specifies the false-color channel selection
for a multi-spectral raster source (such as a multi-band
satellite-imagery source). | | public ColorMap | getColorMap()
The ColorMap element defines either the colors of a palette-type raster
source or the mapping of fixed-numeric pixel values to colors. | | public ContrastEnhancement | getContrastEnhancement()
The ContrastEnhancement element defines contrast enhancement for a
channel of a false-color image or for a color image. | | public String | getGeometryPropertyName()
The interpretation of Geometry is system-dependent, as raster data may
be organized differently from feature data, though omitting this
element selects the default raster-data source. | | public Symbolizer | getImageOutline()
The ImageOutline element specifies that individual source rasters in a
multi-raster set (such as a set of satellite-image scenes) should be
outlined with either a LineStringSymbol or PolygonSymbol. | | public Expression | getOpacity()
| | public Expression | getOverlap()
The OverlapBehavior element tells a system how to behave when multiple
raster images in a layer overlap each other, for example with
satellite-image scenes. | | public ShadedRelief | getShadedRelief()
The ShadedRelief element selects the application of relief shading (or
?hill shading?) to an image for a three-dimensional visual effect. | | public int | hashcode()
| | public void | setChannelSelection(ChannelSelection channel)
The ChannelSelection element specifies the false-color channel selection
for a multi-spectral raster source (such as a multi-band
satellite-imagery source). | | public void | setColorMap(ColorMap colorMap)
The ColorMap element defines either the colors of a palette-type raster
source or the mapping of fixed-numeric pixel values to colors. | | public void | setContrastEnhancement(ContrastEnhancement contrastEnhancement)
The ContrastEnhancement element defines contrast enhancement for a
channel of a false-color image or for a color image. | | public void | setGeometryPropertyName(String geometryName)
The interpretation of Geometry is system-dependent, as raster data may
be organized differently from feature data, though omitting this
element selects the default raster-data source. | | public void | setImageOutline(Symbolizer symbolizer)
The ImageOutline element specifies that individual source rasters in a
multi-raster set (such as a set of satellite-image scenes) should be
outlined with either a LineStringSymbol or PolygonSymbol. | | public void | setOpacity(Expression opacity)
sets the opacity for the coverage, it has the usual meaning. | | public void | setOverlap(Expression overlap)
The OverlapBehavior element tells a system how to behave when multiple
raster images in a layer overlap each other, for example with
satellite-image scenes. | | public void | setShadedRelief(ShadedRelief shadedRelief)
The ShadedRelief element selects the application of relief shading (or
?hill shading?) to an image for a three-dimensional visual effect. |
| RasterSymbolizerImpl | | public RasterSymbolizerImpl()(Code) | | |
| RasterSymbolizerImpl | | public RasterSymbolizerImpl(FilterFactory factory)(Code) | | |
| clone | | public Object clone()(Code) | | Creates a deep copy clone. TODO: Need to complete the deep copy,
currently only shallow copy.
The deep copy clone.
throws:
RuntimeException - DOCUMENT ME! |
| getChannelSelection | | public ChannelSelection getChannelSelection()(Code) | | The ChannelSelection element specifies the false-color channel selection
for a multi-spectral raster source (such as a multi-band
satellite-imagery source). Either a channel may be selected to display
in each of red, green, and blue, or a single channel may be selected to
display in grayscale. (The spelling ?gray? is used since it seems to
be more common on the Web than ?grey? by a ratio of about 3:1.)
Contrast enhancement may be applied to each channel in isolation.
Channels are identified by a system and data-dependent character
identifier. Commonly, channels will be labelled as ?1?, ?2?, etc.
the ChannelSelection object set or null if none is available. |
| getColorMap | | public ColorMap getColorMap()(Code) | | The ColorMap element defines either the colors of a palette-type raster
source or the mapping of fixed-numeric pixel values to colors. For
example, a DEM raster giving elevations in meters above sea level can
be translated to a colored image with a ColorMap. The quantity
attributes of a color-map are used for translating between numeric
matrixes and color rasters and the ColorMap entries should be in order
of increasing numeric quantity so that intermediate numeric values can
be matched to a color (or be interpolated between two colors). Labels
may be used for legends or may be used in the future to match character
values. Not all systems can support opacity in colormaps. The default
opacity is 1.0 (fully opaque). Defaults for quantity and label are
system-dependent.
the ColorMap for the raster |
| getContrastEnhancement | | public ContrastEnhancement getContrastEnhancement()(Code) | | The ContrastEnhancement element defines contrast enhancement for a
channel of a false-color image or for a color image. In the case of a
color image, the relative grayscale brightness of a pixel color is
used. ?Normalize? means to stretch the contrast so that the dimmest
color is stretched to black and the brightest color is stretched to
white, with all colors in between stretched out linearly. ?Histogram?
means to stretch the contrast based on a histogram of how many colors
are at each brightness level on input, with the goal of producing equal
number of pixels in the image at each brightness level on output. This
has the effect of revealing many subtle ground features. A ?GammaValue?
tells how much to brighten (value greater than 1.0) or dim (value less
than 1.0) an image. The default GammaValue is 1.0 (no change). If none
of Normalize, Histogram, or GammaValue are selected in a
ContrastEnhancement, then no enhancement is performed.
the ContrastEnhancement |
| getGeometryPropertyName | | public String getGeometryPropertyName()(Code) | | The interpretation of Geometry is system-dependent, as raster data may
be organized differently from feature data, though omitting this
element selects the default raster-data source. Geometry-type
transformations are also system-dependent and it is assumed that this
capability will be little used.
the name of the geometry |
| getImageOutline | | public Symbolizer getImageOutline()(Code) | | The ImageOutline element specifies that individual source rasters in a
multi-raster set (such as a set of satellite-image scenes) should be
outlined with either a LineStringSymbol or PolygonSymbol. It is defined
as:
<xs:element name="ImageOutline">
<xs:complexType>
<xs:choice>
<xs:element ref="sld:LineSymbolizer"/>
<xs:element ref="sld:PolygonSymbolizer"/>
</xs:choice>
</xs:complexType>
</xs:element>
An Opacity of 0.0 can be selected for the main raster to avoid rendering
the main-raster pixels, or an opacity can be used for a
PolygonSymbolizer Fill to allow the main-raster data be visible through
the fill.
The relevent symbolizer |
| getOpacity | | public Expression getOpacity()(Code) | | fetch the expresion which evaluates to the opacity fo rthis coverage
The expression |
| getOverlap | | public Expression getOverlap()(Code) | | The OverlapBehavior element tells a system how to behave when multiple
raster images in a layer overlap each other, for example with
satellite-image scenes. LATEST_ON_TOP and EARLIEST_ON_TOP refer to the
time the scene was captured. AVERAGE means to average multiple scenes
together. This can produce blurry results if the source images are not
perfectly aligned in their geo-referencing. RANDOM means to select an
image (or piece thereof) randomly and place it on top. This can
produce crisper results than AVERAGE potentially more efficiently than
LATEST_ON_TOP or EARLIEST_ON_TOP. The default behaviour is
system-dependent.
The expression which evaluates to LATEST_ON_TOP,EARLIEST_ON_TOP, AVERAGE or RANDOM |
| getShadedRelief | | public ShadedRelief getShadedRelief()(Code) | | The ShadedRelief element selects the application of relief shading (or
?hill shading?) to an image for a three-dimensional visual effect. It
is defined as: Exact parameters of the shading are system-dependent
(for now). If the BrightnessOnly flag is ?0? (false, default), the
shading is applied to the layer being rendered as the current
RasterSymbol. If BrightnessOnly is ?1? (true), the shading is applied
to the brightness of the colors in the rendering canvas generated so
far by other layers, with the effect of relief-shading these other
layers. The default for BrightnessOnly is ?0? (false). The
ReliefFactor gives the amount of exaggeration to use for the height of
the ?hills.? A value of around 55 (times) gives reasonable results for
Earth-based DEMs. The default value is system-dependent.
the shadedrelief object |
| hashcode | | public int hashcode()(Code) | | |
| setChannelSelection | | public void setChannelSelection(ChannelSelection channel)(Code) | | The ChannelSelection element specifies the false-color channel selection
for a multi-spectral raster source (such as a multi-band
satellite-imagery source). Either a channel may be selected to display
in each of red, green, and blue, or a single channel may be selected to
display in grayscale. (The spelling ?gray? is used since it seems to
be more common on the Web than ?grey? by a ratio of about 3:1.)
Contrast enhancement may be applied to each channel in isolation.
Channels are identified by a system and data-dependent character
identifier. Commonly, channels will be labelled as ?1?, ?2?, etc.
Parameters:
channel - the channel selected |
| setColorMap | | public void setColorMap(ColorMap colorMap)(Code) | | The ColorMap element defines either the colors of a palette-type raster
source or the mapping of fixed-numeric pixel values to colors. For
example, a DEM raster giving elevations in meters above sea level can
be translated to a colored image with a ColorMap. The quantity
attributes of a color-map are used for translating between numeric
matrixes and color rasters and the ColorMap entries should be in order
of increasing numeric quantity so that intermediate numeric values can
be matched to a color (or be interpolated between two colors). Labels
may be used for legends or may be used in the future to match character
values. Not all systems can support opacity in colormaps. The default
opacity is 1.0 (fully opaque). Defaults for quantity and label are
system-dependent.
Parameters:
colorMap - the ColorMap for the raster |
| setContrastEnhancement | | public void setContrastEnhancement(ContrastEnhancement contrastEnhancement)(Code) | | The ContrastEnhancement element defines contrast enhancement for a
channel of a false-color image or for a color image. In the case of a
color image, the relative grayscale brightness of a pixel color is
used. ?Normalize? means to stretch the contrast so that the dimmest
color is stretched to black and the brightest color is stretched to
white, with all colors in between stretched out linearly. ?Histogram?
means to stretch the contrast based on a histogram of how many colors
are at each brightness level on input, with the goal of producing equal
number of pixels in the image at each brightness level on output. This
has the effect of revealing many subtle ground features. A ?GammaValue?
tells how much to brighten (value greater than 1.0) or dim (value less
than 1.0) an image. The default GammaValue is 1.0 (no change). If none
of Normalize, Histogram, or GammaValue are selected in a
ContrastEnhancement, then no enhancement is performed.
Parameters:
contrastEnhancement - the contrastEnhancement |
| setGeometryPropertyName | | public void setGeometryPropertyName(String geometryName)(Code) | | The interpretation of Geometry is system-dependent, as raster data may
be organized differently from feature data, though omitting this
element selects the default raster-data source. Geometry-type
transformations are also system-dependent and it is assumed that this
capability will be little used.
Parameters:
geometryName - the name of the Geometry |
| setImageOutline | | public void setImageOutline(Symbolizer symbolizer)(Code) | | The ImageOutline element specifies that individual source rasters in a
multi-raster set (such as a set of satellite-image scenes) should be
outlined with either a LineStringSymbol or PolygonSymbol. It is defined
as:
<xs:element name="ImageOutline">
<xs:complexType>
<xs:choice>
<xs:element ref="sld:LineSymbolizer"/>
<xs:element ref="sld:PolygonSymbolizer"/>
</xs:choice>
</xs:complexType>
</xs:element>
An Opacity of 0.0 can be selected for the main raster to avoid rendering
the main-raster pixels, or an opacity can be used for a
PolygonSymbolizer Fill to allow the main-raster data be visible through
the fill.
Parameters:
symbolizer - the symbolizer to be used. If this is not apolygon or a line symbolizer an unexpected argument exceptionmay be thrown by an implementing class.
throws:
IllegalArgumentException - DOCUMENT ME! |
| setOpacity | | public void setOpacity(Expression opacity)(Code) | | sets the opacity for the coverage, it has the usual meaning.
Parameters:
opacity - An expression which evaluates to the the opacity (0-1) |
| setOverlap | | public void setOverlap(Expression overlap)(Code) | | The OverlapBehavior element tells a system how to behave when multiple
raster images in a layer overlap each other, for example with
satellite-image scenes. LATEST_ON_TOP and EARLIEST_ON_TOP refer to the
time the scene was captured. AVERAGE means to average multiple scenes
together. This can produce blurry results if the source images are not
perfectly aligned in their geo-referencing. RANDOM means to select an
image (or piece thereof) randomly and place it on top. This can
produce crisper results than AVERAGE potentially more efficiently than
LATEST_ON_TOP or EARLIEST_ON_TOP. The default behaviour is
system-dependent.
Parameters:
overlap - the expression which evaluates to LATEST_ON_TOP,EARLIEST_ON_TOP, AVERAGE or RANDOM |
| setShadedRelief | | public void setShadedRelief(ShadedRelief shadedRelief)(Code) | | The ShadedRelief element selects the application of relief shading (or
?hill shading?) to an image for a three-dimensional visual effect. It
is defined as: Exact parameters of the shading are system-dependent
(for now). If the BrightnessOnly flag is ?0? (false, default), the
shading is applied to the layer being rendered as the current
RasterSymbol. If BrightnessOnly is ?1? (true), the shading is applied
to the brightness of the colors in the rendering canvas generated so
far by other layers, with the effect of relief-shading these other
layers. The default for BrightnessOnly is ?0? (false). The
ReliefFactor gives the amount of exaggeration to use for the height of
the ?hills.? A value of around 55 (times) gives reasonable results for
Earth-based DEMs. The default value is system-dependent.
Parameters:
shadedRelief - the shadedrelief object |
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