Examples with Expression org.opengis.filter.Expression used on opensource projects

Example 16 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class ExpressionDemo method mathExpression.

private static Expression mathExpression() {
    final Expression multi = FF.multiply(FF.property("age"), FF.literal(3));
    final Expression add = FF.add(multi, FF.literal(10));
    return add;
}

Example 17 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class CachedAnchorPoint method cache.

public static CachedAnchorPoint cache(final AnchorPoint anchor) {
    float cachedX = Float.NaN;
    float cachedY = Float.NaN;
    final Collection<String> attributs;
    if (anchor != null) {
        attributs = new ArrayList<String>();
        final Expression expX = anchor.getAnchorPointX();
        final Expression expY = anchor.getAnchorPointY();
        if (GO2Utilities.isStatic(expX)) {
            cachedX = GO2Utilities.evaluate(expX, null, Float.class, 0.5f);
        } else {
            GO2Utilities.getRequieredAttributsName(expX, attributs);
        }
        if (GO2Utilities.isStatic(expY)) {
            cachedY = GO2Utilities.evaluate(expY, null, Float.class, 0.5f);
        } else {
            GO2Utilities.getRequieredAttributsName(expY, attributs);
        }
    } else {
        attributs = Cache.EMPTY_ATTRIBUTS;
        // we can cache X and Y with default values
        cachedX = StyleConstants.DEFAULT_ANCHOR_POINT_Xf;
        cachedY = StyleConstants.DEFAULT_ANCHOR_POINT_Yf;
    }
    if (attributs.isEmpty()) {
        return new StaticAnchorPoint(anchor, cachedX, cachedY);
    } else {
        return new DynamicAnchorPoint(anchor, cachedX, cachedY, attributs);
    }
}

Example 18 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class CachedDisplacement method cache.

public static CachedDisplacement cache(final Displacement anchor) {
    float cachedX = Float.NaN;
    float cachedY = Float.NaN;
    final Collection<String> attributs;
    if (anchor != null) {
        attributs = new ArrayList<String>();
        final Expression expX = anchor.getDisplacementX();
        final Expression expY = anchor.getDisplacementY();
        if (GO2Utilities.isStatic(expX)) {
            cachedX = GO2Utilities.evaluate(expX, null, Float.class, 0.5f);
        } else {
            GO2Utilities.getRequieredAttributsName(expX, attributs);
        }
        if (GO2Utilities.isStatic(expY)) {
            cachedY = GO2Utilities.evaluate(expY, null, Float.class, 0.5f);
        } else {
            GO2Utilities.getRequieredAttributsName(expY, attributs);
        }
    } else {
        attributs = Cache.EMPTY_ATTRIBUTS;
        // we can cache X and Y with default values
        cachedX = StyleConstants.DEFAULT_DISPLACEMENT_Xf;
        cachedY = StyleConstants.DEFAULT_DISPLACEMENT_Yf;
    }
    if (attributs.isEmpty()) {
        return new StaticDisplacement(anchor, cachedX, cachedY);
    } else {
        return new DynamicDisplacement(anchor, cachedX, cachedY, attributs);
    }
}

Example 19 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class CachedExternal method recode.

private static BufferedImage recode(BufferedImage buffer, final Collection<ColorReplacement> replacements) {
    if (buffer != null) {
        for (final ColorReplacement replace : replacements) {
            final Expression fct = replace.getRecoding();
            buffer = (BufferedImage) fct.apply(buffer);
        }
    }
    return buffer;
}

Example 20 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class CachedFill method getJ2DComposite.

/**
 * @return Java2D composite for this feature
 */
public AlphaComposite getJ2DComposite(final Object candidate) {
    evaluate();
    if (cachedComposite == null) {
        // if composite is null it means it is dynamic
        final Expression opacity = styleElement.getOpacity();
        Float j2dOpacity = GO2Utilities.evaluate(opacity, candidate, 1f, 0f, 1f);
        return AlphaComposite.getInstance(AlphaComposite.SRC_OVER, j2dOpacity.floatValue());
    }
    return cachedComposite;
}