Package noaa.coastwatch.render

package noaa.coastwatch.render

Provides classes for rendering earth data to images.

The top-level rendering class EarthDataView uses the data values from one or more DataVariable objects to create an image. A number of EarthDataOverlay objects may be used to render graphical overlays such as coast or grid lines on the main view image. Legends may be rendered on or beside the view image using Legend objects. The EarthDataPlot class groups an EarthDataView and various legends to produce a standard presentation quality data plot.

The subclass ColorEnhancement is an EarthDataView which assigns colors to data values based on Palette and EnhancementFunction objects. The Palette class represents an indexed set of colors read from a special format data file. The EnhancementFunction class determines the mapping of data values to colors.

The subclass ColorComposite is an EarthDataView that creates an image using three data values for the red, green, and blue components of each pixel. A color composite may be used to emphasize certain spectral features in a satellite image that can only be seen using multiple data channels.

The LineFeatureSource and LineFeature classes combine to allow the reading and rendering of earth polyline data such as coast lines and political boundaries. LineFeature objects are normally used in conjunction with EarthDataOverlay objects to provide line annotation for data views.

Related Packages

Package	Description
noaa.coastwatch.render.feature	Provides classes for reading and selecting groups of earth locations assembled into feature layers like coastlines, shapefiles, and polygons.
noaa.coastwatch.render.lines	Provides classes for holding and rendering lines on the earth and their labels.

Class	Description
AnnotationElement	An annotation element handles the specific information for annotation of data with one symbol or string.
AnnotationOverlay	An annotation overlay annotes a data view with annotation elements.
ArrowSymbol	A ArrowSymbol is a PointFeatureSymbol that renders an arrow pointing in the direction of a vector quantity.
BitmaskOverlay	A BitmaskOverlay annotates a data view using a data grid and an integer bit mask.
CoastOverlay	A CoastOverlay annotates an earth data view with coast lines and polygons.
ColorArrowSymbol	A ColorArrowSymbol is similar to a normal arrow but it has the additional feature that arrows are colored according to a color enhancement scheme based on the vector magnitude.
ColorComposite	A color composite is a data view that creates an image based on three data grid variables, one each for red, green, and blue.
ColorEnhanced	The ColorEnhanced interface gives methods for classes whose data are enhanced with a color palette and enhancement function.
ColorEnhancement	A color enhancement is an earth data view that creates an image based on a grid variable, color palette, and enhancement function.
ColorEnhancementSettings	The ColorEnhancementSettings class stores palette and enhancement function information for a color enhancement of a data variable.
ColorLookup	The color lookup class translates color names to red, green, blue values based on a color names data file.
ColorPointEnhancement	The ColorPointEnhancement class uses a Palette and EnhancementFunction to render a PointFeatureOverlay to an earth view.
ColorWindBarbSymbol	A ColorWindBarbSymbol is similar to a normal wind barb but it has the additional feature that barbs are colored according to a color enhancement scheme based on the wind speed.
ContourGenerator	A contour generator creates lists of earth data points that follow lines of constant value in a gridded dataset.
CrossSymbol	The CrossSymbol class draws a cross for a point symbol.
DataColorScale	A color scale annotates a data enhancement plot with a scale of colors from a color palette and tick marks at regular intervals for the data values.
DataReferenceOverlay	The DataReferenceOverlay class annotates an EarthDataView object with row/column grid lines and labels.
DirectionSymbol	A DirectionSymbol is a PointFeatureSymbol that renders a directional vector.
EarthContextElement	The EarthContextElement is a picture element that renders a simplified view of the earth with coastlines and the bounding boxes of a number of arbitrarily shaped areas.
EarthDataOverlay	An earth data overlay specifies information used for the annotation of an earth data view, for example grid lines, coastlines, symbols, text, and so on.
EarthDataPlot	The earth data plot class is used for rendering earth data with legends.
EarthDataView	The EarthDataView class sets up a correspondence between 2D Earth locatable data variables (possibly more than one) and a visual image.
EarthImageTransform	The earth image transform class translates between 2D geographic coordinates in latitude, longitude and image coordinates in x, y.
EarthPlotInfo	An earth plot information legend annotates an earth data view with information about the data source, date, time, projection, and earth location.
EnhancementFunction	An enhancement function normalizes a data value to the range [0..1].
EnhancementFunctionFactory	The EnhancementFunctionFactory creates enhancement functions using a simple set of specifications.
ExpressionMaskOverlay	The ExpressionMaskOverlay class uses a mathematical expression to compute a data mask.
FilledShapeOverlay	The FilledShapeOverlay class may be used to render a list of generic filled shapes.
GammaEnhancement	A gamma enhancement is an enhancement function formed by a power law y = (mx + b)^g relationship where g is the gamma value, set to 1/2.2 by default.
GraphicsServices	The graphics services class defines various static methods relating to the java.awt.Graphics2D class.
GridContainerOverlay	The GridContainerOverlay interface marks overlays that use one or more Grid objects to display their graphics.
HybridView	The HybridView class is an earth data view that combines a set of data views.
IconElement	An icon element is a picture element that is rendered from image data.
IconElementFactory	The IconElementFactory class creates IconElement objects from either a user-specified file or from built in resource images.
ImageTransform	The ImageTransform class translates between 2D data coordinates and image coordinates in x and y.
JavaExpressionMaskOverlay	The JavaExpressionMaskOverlay class uses a mathematical expression in Java syntax to compute a data mask.
LabeledLineOverlay	A LabeledLineOverlay renders lines and labels on an EarthDataView.
LatLonOverlay	The LatLonOverlay class annotates an EarthDataView view with latitude/longitude grid lines and labels.
Legend	A legend is used to annotate data with descriptive elements.
LinearEnhancement	A linear enhancement is an enhancement function formed by a linear y = mx + b relationship.
LineFeatureOverlay	The LineFeatureOverlay class annotates a data view with line features from a line feature source.
LineOverlay	A vector overlay annotes a data view with vector-specified lines and shapes.
LogEnhancement	A log enhancement is an enhancement function formed by a logarithm y = mlogx + b relationship.
MaskOverlay	A MaskOverlay annotates a data view using some extra information to form a mask of opaque and transparent pixels at each data location.
MultilayerBitmaskOverlay	The MultilayerBitmaskOverlay class uses a set of BitmaskOverlay objects to colour subsets of bits in the bit mask with different colors.
MultiPointFeatureOverlay<T extends PointFeatureSymbol>	The MultiPointFeatureOverlay class annotes a data view with symbols using data from from multiple PointFeatureOverlay objects.
OrientationAffineFactory	The OrientationAffineFactory constructs affine transform objects to correctly orient an EarthTransform so that it appears in the on-screen image the way a data user would naturally expect to see it.
OverlayGroupManager	The OverlayGroupManager class can be used to save, load, delete, and get a list of overlay groups.
Palette	The Palette allows the user to associate a name and index color model together as a palette and perform manipulations on the palette colors.
PaletteFactory	The PaletteFactory class handles written tables of predefined index color models.
PathTransformer	The PathTransformer class converts line segments of earth location data to projected image data, taking account of discontinuities and boundary cuts in the line segments.
PictureElement	A picture element is an annotation element the renders graphics and shapes.
PlotSymbolFactory	The PlotSymbolFactory class supplies plot symbols for scatter plots and point feature plots.
PointFeatureOverlay<T extends PointFeatureSymbol>	The PointFeatureOverlay class annotes a data view with symbols using data from a PointFeatureSource.
PointFeatureSymbol	A PointFeatureSymbol is a PlotSymbol that may change its rendered appearance slightly depending on the attributes of the feature that it currently holds.
PoliticalOverlay	The PoliticalOverlay class annotates an EarthDataView with political border lines.
PolygonFeatureOverlay	The PolygonFeatureOverlay class annotes a data view with earth polygons from an PolygonFeatureSource.
PolygonOverlay	A polygon overlay annotes a data view with vector-specified polygon lines and shapes.
Renderable	The renderable interface sets the methods for classes that render to images or graphics contexts.
ShadowGenerator	The ShadowGenerator class creates drop shadows from the non-transparent pixels in an image.
ShapeOverlay	The ShapeOverlay class may be used to render a list of generic shapes.
SimpleSymbol	A SimpleSymbol is a PointFeatureSymbol that renders a PlotSymbol and optional text label.
SolidBackground	The solid background class is an earth data view that creates a solid image of color to help view overlay graphics.
StepEnhancement	A step enhancement is an enhancement function formed by a number of discrete steps.
Subregion
SurveyOverlay	The SurveyOverlay class may be used to display the shape of an EarthDataSurvey object.
TextElement	A text element is an annotation element the renders text strings.
TextOverlay	The TextOverlay class may be used to render a list of text annotation elements.
Topography	The Topography class holds topography data, useful for classes that need topography data for contouring, atmospheric correction, etc.
TopographyOverlay	A topography overlay annotates an earth data view with topography lines.
TransparentOverlay	The TransparentOverlay interface is a marker interface for EarthDataOverlay classes that use a combination of opaque and transparent pixels.
WindBarbSymbol	A WindBarbSymbol is a PointFeatureSymbol that renders a wind barb according to the WMO rules.
XSymbol	The XSymbol class draws an X for a point symbol.