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ObjectStyleGenerator
public class StyleGenerator
Generates a style/featureTypeStyle using ColorBrewer.
WARNING: this is unstable and subject to radical change.
Field Summary | |
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static int |
ELSEMODE_IGNORE
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static int |
ELSEMODE_INCLUDEASMAX
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static int |
ELSEMODE_INCLUDEASMIN
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Constructor Summary | |
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protected |
StyleGenerator()
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Method Summary | |
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static FeatureTypeStyle |
createFeatureTypeStyle(Classifier classifier,
Expression expression,
Color[] colors,
String typeId,
GeometryDescriptor geometryAttrType,
int elseMode,
double opacity,
Stroke defaultStroke)
Merges a classifier, array of colors and other data into a FeatureTypeStyle object. |
static boolean |
isRanged(String styleExpression)
Determines if a string is an instance of a ranged expression or unique values. |
static void |
modifyFTS(FeatureTypeStyle fts,
int ruleIndex,
String styleExpression)
Used to update an existing style based on the provided input. |
static Filter |
toExplicitFilter(String styleExpression,
Expression attribExpr)
Creates a filter with each value explicitly defined. |
static Filter |
toExplicitFilter(String styleExpression,
SimpleFeatureType featureType,
String attributeTypeName)
Creates a filter with each value explicitly defined. |
static Filter[] |
toFilter(String[] styleExpression,
SimpleFeatureType[] featureType,
String[] attributeTypeName)
Converts an array of styleExpressions and attributes into Filters styleExpression[0] = "1..5"; styleExpression[1] = "5..10"; styleExpression[2] = "11, -13"; ---> filter[0] = [[1 <= attr] AND [attr < 5]] filter[1] = [[6 <= attr] AND [attr <= 10]] filter[2] = [[attr = 11] OR [attr = -13]]
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static Filter |
toRangedFilter(String styleExpression,
SimpleFeatureType featureType,
String attributeTypeName,
boolean upperBoundClosed)
Creates a filter for a range of values. |
static String |
toStyleExpression(Filter filter)
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static String[] |
toStyleExpression(Filter[] filter)
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Methods inherited from class Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final int ELSEMODE_IGNORE
public static final int ELSEMODE_INCLUDEASMIN
public static final int ELSEMODE_INCLUDEASMAX
Constructor Detail |
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protected StyleGenerator()
Method Detail |
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public static FeatureTypeStyle createFeatureTypeStyle(Classifier classifier, Expression expression, Color[] colors, String typeId, GeometryDescriptor geometryAttrType, int elseMode, double opacity, Stroke defaultStroke) throws IllegalFilterException
classifier
- colors
- typeId
- semantic type identifier, which will be prefixed with
"colorbrewer:"geometryAttrType
- elseMode
- opacity
- defaultStroke
-
IllegalFilterException
public static void modifyFTS(FeatureTypeStyle fts, int ruleIndex, String styleExpression) throws IllegalFilterException
fts
- ruleIndex
- styleExpression
-
IllegalFilterException
public static String toStyleExpression(Filter filter)
public static String[] toStyleExpression(Filter[] filter)
public static Filter[] toFilter(String[] styleExpression, SimpleFeatureType[] featureType, String[] attributeTypeName) throws IllegalFilterException
Converts an array of styleExpressions and attributes into Filters
styleExpression[0] = "1..5";
styleExpression[1] = "5..10";
styleExpression[2] = "11, -13";
--->
filter[0] = [[1 <= attr] AND [attr < 5]]
filter[1] = [[6 <= attr] AND [attr <= 10]]
filter[2] = [[attr = 11] OR [attr = -13]]
styleExpression
- strings of ranged expressions "lowValue..highValue" or
explicit values "value1, value2"featureType
- attributeTypeName
-
IllegalFilterException
public static Filter toRangedFilter(String styleExpression, SimpleFeatureType featureType, String attributeTypeName, boolean upperBoundClosed) throws IllegalFilterException
Creates a filter for a range of values.
Examples:
"1..5", closed=true --> [[1 <= attr] AND [attr <= 5]]
"1..10", closed=false --> [[1 <= attr] AND [attr < 10]]
"..10, closed=true --> [attr <= 10]
styleExpression
- the ranged style expression (minValue..maxValue)featureType
- the featureTypeattributeTypeName
- the attributeTypeName whose values correspond toupperBoundClosed
- does the upper bound include the max value? (true: <=, false: <)
IllegalFilterException
public static boolean isRanged(String styleExpression)
public static Filter toExplicitFilter(String styleExpression, SimpleFeatureType featureType, String attributeTypeName) throws IllegalFilterException
Creates a filter with each value explicitly defined.
Examples:
"LIB" --> [PARTY = LIB]
"LIB, NDP" --> [[PARTY = LIB] OR [PARTY = NDP]]
styleExpression
- the list of attribute values, separated by commas (and
optional spaces)attributeTypeName
- A Sting with the attributeTypeName whose values correspond to
IllegalFilterException
public static Filter toExplicitFilter(String styleExpression, Expression attribExpr) throws IllegalFilterException
Creates a filter with each value explicitly defined.
Examples:
"LIB" --> [PARTY = LIB]
"LIB, NDP" --> [[PARTY = LIB] OR [PARTY = NDP]]
styleExpression
- the list of attribute values, separated by commas (and
optional spaces)attribExpr
- an Expression to compare each value with (simple case = attributeExpression)
IllegalFilterException
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