org.geotools.renderer.style.markwkt

Class MeteoMarkFactory

Object

MeteoMarkFactory

All Implemented Interfaces:

MarkFactory

public class MeteoMarkFactory
extends Object
implements MarkFactory

Adds to the well-known shapes some symbols the weathermen may find useful.

Author:

Luca Morandini lmorandini@ieee.org

Field Summary

Fields

Modifier and Type	Field and Description
static String	ARROW_HEIGHT_RATIO_KEY Key for the extshape://arrow height ratio (between 0 and 1000).
static String	ARROW_THICKNESS_KEY Key for the extshape://arrow base line thickness (must be between 0, just border, and 1, which turns the arrow into a irregular pentagon, "little house" like).
static String	ARROWHEAD_BASE_KEY Key for the extshape://arrow location of the arrowhead base, a value of 0 turns the shape into a triangle, a value of 1 into a rectangle.
static String	SHAPE_PREFIX
protected static Map<String,Shape>	WELLKNOWN_SHAPES

Constructor Summary

Constructors

Constructor and Description
MeteoMarkFactory()

Method Summary

Modifier and Type	Method and Description
Shape	getShape(Graphics2D graphics, Expression symbolUrl, Feature feature) Turns the specified URL into an Shape, eventually using the Feature attributes to evaluate the expression, or returns null if the factory cannot evaluate this symbolUrl.

Methods inherited from class Object

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

Field Detail

SHAPE_PREFIX

public static final String SHAPE_PREFIX

See Also:

Constant Field Values

ARROW_HEIGHT_RATIO_KEY

public static final String ARROW_HEIGHT_RATIO_KEY

Key for the extshape://arrow height ratio (between 0 and 1000). Default value is 2, twice as high as large

See Also:

Constant Field Values

ARROW_THICKNESS_KEY

public static final String ARROW_THICKNESS_KEY

Key for the extshape://arrow base line thickness (must be between 0, just border, and 1, which turns the arrow into a irregular pentagon, "little house" like). Default value is 0.2

See Also:

Constant Field Values

ARROWHEAD_BASE_KEY

public static final String ARROWHEAD_BASE_KEY

Key for the extshape://arrow location of the arrowhead base, a value of 0 turns the shape into a triangle, a value of 1 into a rectangle. Default value is 0.5

See Also:

Constant Field Values

WELLKNOWN_SHAPES

protected static final Map<String,Shape> WELLKNOWN_SHAPES

Constructor Detail

MeteoMarkFactory

public MeteoMarkFactory()

Method Detail

getShape

public Shape getShape(Graphics2D graphics,
                      Expression symbolUrl,
                      Feature feature)
               throws Exception

Description copied from interface: MarkFactory

Turns the specified URL into an Shape, eventually using the Feature attributes to evaluate the expression, or returns null if the factory cannot evaluate this symbolUrl.

The returned Shape must not exceed the [-0.5, -0.5, 0.5, 0.5] bounds (will be rescaled according to the parameter given in graphics on the fly

Specified by:

getShape in interface MarkFactory

symbolUrl - the expression that will return the symbol name. Once evaluated the expression should return something like plainName or like protocol://path. See the actual implementations for details on the kind of supported name.

feature - The feature that will be used to evaluate the symbolURL expression (or to extract data from it, think complex attributes, in that case a visit to the expression and some direct attribute value extraction might be needed instead)

Throws:

Exception