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

Example 21 with Expression

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

the class CachedFont method evaluate.

@Override
protected void evaluate() {
    if (!isNotEvaluated)
        return;
    final List<Expression> expFamily = styleElement.getFamily();
    final Expression expSize = styleElement.getSize();
    final Expression expWeight = styleElement.getWeight();
    final Expression expStyle = styleElement.getStyle();
    // we can not know so always visible
    isStaticVisible = VisibilityState.VISIBLE;
    // TODO find the best font acoording to OS font list
    if (!expFamily.isEmpty() && GO2Utilities.isStatic(expFamily.get(0))) {
        fontFamily = GO2Utilities.evaluate(expFamily.get(0), null, String.class, "Dialog");
    } else if (!expFamily.isEmpty()) {
        GO2Utilities.getRequieredAttributsName(expFamily.get(0), requieredAttributs);
        isStatic = false;
    } else {
        fontFamily = "Dialog";
    }
    if (GO2Utilities.isStatic(expSize)) {
        final Float f = GO2Utilities.evaluate(expSize, null, Float.class, 10f);
        if (f != null) {
            fontSize = f.intValue();
        }
    } else {
        GO2Utilities.getRequieredAttributsName(expSize, requieredAttributs);
        isStatic = false;
    }
    if (GO2Utilities.isStatic(expWeight) && GO2Utilities.isStatic(expStyle)) {
        String strWeight = GO2Utilities.evaluate(expWeight, null, String.class, FONT_STYLE_NORMAL_STRING);
        String strStyle = GO2Utilities.evaluate(expStyle, null, String.class, FONT_WEIGHT_NORMAL_STRING);
        if (FONT_WEIGHT_BOLD_STRING.equalsIgnoreCase(strWeight)) {
            if (FONT_STYLE_ITALIC_STRING.equalsIgnoreCase(strStyle)) {
                fontStyle = java.awt.Font.BOLD | java.awt.Font.ITALIC;
            } else if (FONT_STYLE_OBLIQUE_STRING.equalsIgnoreCase(strStyle)) {
                fontStyle = java.awt.Font.BOLD | java.awt.Font.ITALIC;
            } else {
                fontStyle = java.awt.Font.BOLD;
            }
        } else {
            if (FONT_STYLE_ITALIC_STRING.equalsIgnoreCase(strStyle)) {
                fontStyle = java.awt.Font.ITALIC;
            } else if (FONT_STYLE_OBLIQUE_STRING.equalsIgnoreCase(strStyle)) {
                fontStyle = java.awt.Font.ITALIC;
            } else {
                fontStyle = java.awt.Font.PLAIN;
            }
        }
    } else {
        GO2Utilities.getRequieredAttributsName(expWeight, requieredAttributs);
        GO2Utilities.getRequieredAttributsName(expStyle, requieredAttributs);
        isStatic = false;
    }
    // no attributs needed replace with static empty list.
    if (requieredAttributs.isEmpty()) {
        requieredAttributs = EMPTY_ATTRIBUTS;
    }
    // cache the font if possible
    if (fontSize != Integer.MIN_VALUE && fontStyle != Integer.MIN_VALUE && fontFamily != null) {
        cache = new java.awt.Font(fontFamily, fontStyle, (int) fontSize);
    }
    isNotEvaluated = false;
}

Example 22 with Expression

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

the class CachedGraphic method getMargin.

/**
 * @return margin of this style for the given feature
 */
public float getMargin(final Object candidate, final float coeff) {
    evaluate();
    final boolean noFeature = (candidate == null);
    // //we have a cachedImage, we return it's bigest attribut
    // BufferedImage img = (BufferedImage)cachedValues.get(ID_BUFFER);
    // if(img != null){
    // return (img.getHeight()*coeff > img.getWidth()*coeff) ? img.getHeight()*coeff : img.getWidth()*coeff;
    // }
    // get the displacement margin
    final float maxDisplacement = cachedDisplacement.getMargin(candidate, coeff);
    if (Float.isNaN(maxDisplacement))
        return Float.NaN;
    // get anchor margin
    final float anchorRatio = cachedAnchor.getMarginRatio(candidate, coeff);
    if (Float.isNaN(anchorRatio))
        return Float.NaN;
    float candidateOpacity = cachedOpacity;
    float candidateRotation = cachedRotation;
    float candidateSize = cachedSize;
    if (Float.isNaN(candidateOpacity)) {
        final Expression expOpacity = styleElement.getOpacity();
        if (noFeature) {
            // can not evaluate
            return Float.NaN;
        } else {
            candidateOpacity = GO2Utilities.evaluate(expOpacity, candidate, 1f, 0f, 1f);
        }
    }
    if (candidateOpacity <= 0)
        return 0;
    if (Float.isNaN(candidateRotation)) {
        final Expression expRotation = styleElement.getRotation();
        final Number rot = GO2Utilities.evaluate(expRotation, candidate, Number.class, 0f);
        candidateRotation = (float) Math.toRadians(rot.doubleValue());
    }
    if (Float.isNaN(candidateSize)) {
        final Expression expSize = styleElement.getSize();
        if (noFeature) {
            // can not evaluate
            return Float.NaN;
        } else {
            candidateSize = GO2Utilities.evaluate(expSize, candidate, Number.class, 16f).floatValue();
        }
    }
    if (candidateSize <= 0)
        return 0;
    // the subbuffer image
    BufferedImage subBuffer = null;
    // we have a cached mark ------------------------------------------------------------------
    if (cachedMark != null) {
        if (noFeature) {
            if (cachedMark.isStatic()) {
                subBuffer = cachedMark.getImage(candidate, candidateSize * coeff, null);
            }
        } else {
            subBuffer = cachedMark.getImage(candidate, candidateSize * coeff, null);
        }
    }
    // we have a cached external --------------------------------------------------------------
    if (cachedExternal != null) {
        if (noFeature) {
            if (cachedExternal.isStatic()) {
                subBuffer = cachedExternal.getImage(candidateSize, coeff, null);
            }
        } else {
            subBuffer = cachedExternal.getImage(candidateSize, coeff, null);
        }
    }
    if (subBuffer == null)
        return 0;
    // we must change size according to rotation ---------------------------------------------
    final int maxSizeX;
    final int maxSizeY;
    if (candidateRotation == 0) {
        maxSizeX = subBuffer.getWidth();
        maxSizeY = subBuffer.getHeight();
    } else {
        Rectangle rect = new Rectangle(subBuffer.getWidth(), subBuffer.getHeight());
        TransformedShape trs = new TransformedShape();
        trs.setOriginalShape(rect);
        trs.rotate(candidateRotation);
        maxSizeX = (int) trs.getBounds2D().getWidth();
        maxSizeY = (int) trs.getBounds2D().getHeight();
    }
    // consider the anchor value and displacement
    // max margin is : iconSize/2 + iconSize-0.5 + maxDisplacement
    final float iconSize = Math.max(maxSizeX, maxSizeY);
    return (iconSize / 2f + (Math.abs(anchorRatio - 0.5f) * iconSize) + maxDisplacement) * coeff;
}

Example 23 with Expression

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

the class PatternSymbolizer method getRanges.

public Map<Expression, List<Symbolizer>> getRanges() {
    if (thredholds == null && range != null) {
        thredholds = new TreeMap<>(new ExpComparator());
        final SLD110toGTTransformer io = new StyleXmlIO().getTransformer110();
        final Map<Expression, List<Symbolizer>> visitRanges = io.visitRanges(range);
        thredholds.putAll(visitRanges);
    }
    return thredholds;
}

Example 24 with Expression

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

the class PatternSymbolizer method setRanges.

public void setRanges(Map<Expression, List<Symbolizer>> range) {
    this.thredholds = new TreeMap<>(new ExpComparator());
    if (range != null)
        this.thredholds.putAll(range);
    final GTtoSLD110Transformer io = new StyleXmlIO().getTransformerXMLv110();
    final List<JAXBElement<RangeType>> ranges = new ArrayList<>();
    for (Entry<Expression, List<Symbolizer>> entry : this.thredholds.entrySet()) {
        final JAXBElement<RangeType> rt = io.visitRange(entry.getKey(), entry.getValue());
        ranges.add(rt);
    }
    this.range = ranges;
}

Example 25 with Expression

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

the class CachedLineSymbolizer method evaluateOffset.

private void evaluateOffset() {
    final Expression offset = line.getPerpendicularOffset();
    if (GO2Utilities.isStatic(offset)) {
        cachedOffset = GO2Utilities.evaluate(offset, null, Float.class, 0f);
    } else {
        isStatic = false;
        GO2Utilities.getRequieredAttributsName(offset, requieredAttributs);
    }
}