Class MeteoMarkFactory
- Object
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- MeteoMarkFactory
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- 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
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Field Summary
Fields Modifier and Type Field 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
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Constructor Summary
Constructors Constructor Description MeteoMarkFactory()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method 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 returnsnull
if the factory cannot evaluate this symbolUrl.
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Field Detail
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SHAPE_PREFIX
public static final String SHAPE_PREFIX
- See Also:
- Constant Field Values
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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
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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
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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
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Method Detail
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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 returnsnull
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 interfaceMarkFactory
symbolUrl
- the expression that will return the symbol name. Once evaluated the expression should return something likeplainName
or likeprotocol://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
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