Examples of com.vividsolutions.jts.linearref.LengthIndexedLine.extractLine()

Package com.vividsolutions.jts.linearref

Class com.vividsolutions.jts.linearref.LengthIndexedLine

Examples of com.vividsolutions.jts.linearref.LengthIndexedLine.extractLine()

com.vividsolutions.jts.linearref.LengthIndexedLine.extractLine()
Computes the {@link LineString} for the intervalon the line between the given indices. If the endIndex lies before the startIndex, the computed geometry is reversed. @param startIndex the index of the start of the interval @param endIndex the index of the end of the interval @return the linear interval between the indices

     */
    LineString getSubLineString(LineString ls, double fraction) {
        if (fraction >= 1)
            return ls;
        LengthIndexedLine linRefLine = new LengthIndexedLine(ls);
        LineString subLine = (LineString) linRefLine.extractLine(0, fraction * ls.getLength());
        return subLine;
    }


    /**
     * Filters all input edges and returns all those as LineString geometries, that have at least one end point within the time limits. If they have

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                                    double stopOffset = toMeasure - featureFromMeasure;
                                    double calcLength = ((Geometry) feature
                                            .getDefaultGeometryProperty().getValue()).getLength();
                                    if (calcLength == 0 || featureLength == 0)
                                        continue;
                                    Geometry extracted = lengthIndexedLine.extractLine(startOffset
                                            * calcLength / featureLength, stopOffset * calcLength
                                            / featureLength);
                                    if (!extracted.isEmpty())
                                        lineMerger.add(extracted);
                                } else if (fromMeasure > featureFromMeasure) {

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                                    double startOffset = fromMeasure - featureFromMeasure;
                                    double calcLength = ((Geometry) feature
                                            .getDefaultGeometryProperty().getValue()).getLength();
                                    if (calcLength == 0 || featureLength == 0)
                                        continue;
                                    Geometry extracted = lengthIndexedLine.extractLine(startOffset
                                            * calcLength / featureLength, calcLength);
                                    if (!extracted.isEmpty())
                                        lineMerger.add(extracted);
                                } else {
                                    LengthIndexedLine lengthIndexedLine = new LengthIndexedLine(

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                                    double stopOffset = toMeasure - featureFromMeasure;
                                    double calcLength = ((Geometry) feature
                                            .getDefaultGeometryProperty().getValue()).getLength();
                                    if (calcLength == 0 || featureLength == 0)
                                        continue;
                                    Geometry extracted = lengthIndexedLine.extractLine(0,
                                            stopOffset * calcLength / featureLength);
                                    if (extracted.isEmpty() || extracted.getLength() == 0.0) {
                                        LOGGER.info("Empty segment: featureFromMeasure="
                                                + featureFromMeasure + " featureToMeasure:"
                                                + featureToMeasure + " toMeasure:" + toMeasure

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    System.out.println("Extracting point at position 1.5: " + line.extractPoint(1.5));
    System.out.println("Extracting point at position 1.5 offset 0.5: " + line.extractPoint(1.5, 0.5));
    System.out.println("Extracting point at position 1.5 offset -0.5: " + line.extractPoint(1.5, -0.5));
    System.out.println("Extracting point at position " + length + ": " + line.extractPoint(length));
    System.out.println("Extracting point at position " + (length / 2) + ": " + line.extractPoint(length / 2));
    System.out.println("Extracting line from position 0.1 to 0.2: " + line.extractLine(0.1, 0.2));
    System.out.println("Extracting line from position 0.0 to " + (length / 2) + ": " + line.extractLine(0, length / 2));
    LocationIndexedLine pline = new LocationIndexedLine(geometry);
    System.out.println("Have LocationIndexedLine: " + pline);
    System.out.println("Have start index: " + pline.getStartIndex());
    System.out.println("Have end index: " + pline.getEndIndex());

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    System.out.println("Extracting point at position 1.5 offset 0.5: " + line.extractPoint(1.5, 0.5));
    System.out.println("Extracting point at position 1.5 offset -0.5: " + line.extractPoint(1.5, -0.5));
    System.out.println("Extracting point at position " + length + ": " + line.extractPoint(length));
    System.out.println("Extracting point at position " + (length / 2) + ": " + line.extractPoint(length / 2));
    System.out.println("Extracting line from position 0.1 to 0.2: " + line.extractLine(0.1, 0.2));
    System.out.println("Extracting line from position 0.0 to " + (length / 2) + ": " + line.extractLine(0, length / 2));
    LocationIndexedLine pline = new LocationIndexedLine(geometry);
    System.out.println("Have LocationIndexedLine: " + pline);
    System.out.println("Have start index: " + pline.getStartIndex());
    System.out.println("Have end index: " + pline.getEndIndex());
    System.out.println("Extracting point at start: " + pline.extractPoint(pline.getStartIndex()));

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    return g.getFactory().createPoint(p);
  }
  public static Geometry extractLine(Geometry g, double start, double end)
  {
    LengthIndexedLine ll = new LengthIndexedLine(g);
    return ll.extractLine(start, end);
  }
  public static Geometry project(Geometry g, Geometry g2)
  {
    LengthIndexedLine ll = new LengthIndexedLine(g);
    double index = ll.project(g2.getCoordinate());

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