Examples with COSString org.apache.pdfbox.cos.COSString used on opensource projects

Example 1 with COSString

use of org.apache.pdfbox.cos.COSString in project ddf by codice.

the class GeoPdfParserImpl method apply.

/**
     * Generates a WKT compliant String from a PDF Document if it contains GeoPDF information.
     * Currently, only WGS84 Projections are supported (GEOGRAPHIC GeoPDF ProjectionType).
     *
     * @param pdfDocument - The PDF document
     * @return the WKT String
     * @throws IOException
     */
@Override
public String apply(PDDocument pdfDocument) throws IOException {
    ToDoubleVisitor toDoubleVisitor = new ToDoubleVisitor();
    LinkedList<String> polygons = new LinkedList<>();
    for (PDPage pdPage : pdfDocument.getPages()) {
        COSDictionary cosObject = pdPage.getCOSObject();
        COSBase lgiDictObject = cosObject.getObjectFromPath(LGIDICT);
        // Handle Multiple Map Frames
        if (lgiDictObject instanceof COSArray) {
            for (int i = 0; i < ((COSArray) lgiDictObject).size(); i++) {
                COSDictionary lgidict = (COSDictionary) cosObject.getObjectFromPath(LGIDICT + "/[" + i + "]");
                COSDictionary projectionArray = (COSDictionary) lgidict.getDictionaryObject(PROJECTION);
                if (projectionArray != null) {
                    String projectionType = ((COSString) projectionArray.getItem(PROJECTION_TYPE)).getString();
                    if (GEOGRAPHIC.equals(projectionType)) {
                        COSArray neatlineArray = (COSArray) cosObject.getObjectFromPath(LGIDICT + "/[" + i + "]/" + NEATLINE);
                        String wktString = getWktFromNeatLine(lgidict, neatlineArray, toDoubleVisitor);
                        polygons.add(wktString);
                    } else {
                        LOGGER.debug("Unsupported projection type {}.  Map Frame will be skipped.", projectionType);
                    }
                } else {
                    LOGGER.debug("No projection array found on the map frame.  Map Frame will be skipped.");
                }
            }
        // Handle One Map Frame
        } else if (lgiDictObject instanceof COSDictionary) {
            COSDictionary lgidict = (COSDictionary) lgiDictObject;
            COSDictionary projectionArray = (COSDictionary) lgidict.getDictionaryObject(PROJECTION);
            if (projectionArray != null) {
                String projectionType = ((COSString) projectionArray.getItem(PROJECTION_TYPE)).getString();
                if (GEOGRAPHIC.equals(projectionType)) {
                    COSArray neatlineArray = (COSArray) cosObject.getObjectFromPath(LGIDICT + "/" + NEATLINE);
                    if (neatlineArray == null) {
                        neatlineArray = generateNeatLineFromPDFDimensions(pdPage);
                    }
                    polygons.add(getWktFromNeatLine(lgidict, neatlineArray, toDoubleVisitor));
                } else {
                    LOGGER.debug("Unsupported projection type {}.  Map Frame will be skipped.", projectionType);
                }
            } else {
                LOGGER.debug("No projection array found on the map frame.  Map Frame will be skipped.");
            }
        }
    }
    if (polygons.size() == 0) {
        LOGGER.debug("No GeoPDF information found on PDF during transformation.  Metacard location will not be set.");
        return null;
    }
    if (polygons.size() == 1) {
        return POLYGON + polygons.get(0) + "))";
    } else {
        return polygons.stream().map(polygon -> "((" + polygon + "))").collect(Collectors.joining(",", MULTIPOLYGON, ")"));
    }
}

Example 2 with COSString

use of org.apache.pdfbox.cos.COSString in project ddf by codice.

the class GeoPdfParserImpl method generateNeatLineFromPDFDimensions.

/**
     * A PDF Neatline defines the area of a PDF image with relation to the PDF page.  If no neatline is given
     * it is assumed that the image encompasses the entire page.  This functiong generates a NeatLine
     * in this fashion.
     * @param pdPage the page to generate the NeatLine
     * @return an array of points representing the NeatLine
     */
private COSArray generateNeatLineFromPDFDimensions(PDPage pdPage) {
    COSArray neatLineArray = new COSArray();
    String width = String.valueOf(pdPage.getMediaBox().getWidth());
    String height = String.valueOf(pdPage.getMediaBox().getHeight());
    neatLineArray.add(new COSString("0"));
    neatLineArray.add(new COSString("0"));
    neatLineArray.add(new COSString(width));
    neatLineArray.add(new COSString("0"));
    neatLineArray.add(new COSString(width));
    neatLineArray.add(new COSString(height));
    neatLineArray.add(new COSString("0"));
    neatLineArray.add(new COSString(height));
    return neatLineArray;
}

Example 3 with COSString

use of org.apache.pdfbox.cos.COSString in project ddf by codice.

the class GeoPdfDocumentGenerator method generateNeatLineArray.

private static COSArray generateNeatLineArray() {
    COSArray neatLineArray = new COSArray();
    neatLineArray.add(new COSString("1563.749999999969"));
    neatLineArray.add(new COSString("1992.384698215686"));
    neatLineArray.add(new COSString("1563.75000000011"));
    neatLineArray.add(new COSString("239.6265517842302"));
    neatLineArray.add(new COSString("74.23874999988999"));
    neatLineArray.add(new COSString("239.6265517846492"));
    neatLineArray.add(new COSString("74.23875000008906"));
    neatLineArray.add(new COSString("1992.38469821535"));
    neatLineArray.add(new COSString("1563.749999999969"));
    neatLineArray.add(new COSString("1992.384698215686"));
    return neatLineArray;
}

Example 4 with COSString

use of org.apache.pdfbox.cos.COSString in project ddf by codice.

the class GeoPdfDocumentGenerator method generateCTMArray.

private static COSArray generateCTMArray() {
    COSArray ctmArray = new COSArray();
    ctmArray.add((new COSString("0.003591954022988553")));
    ctmArray.add((new COSString("7.868785750012534e-017")));
    ctmArray.add((new COSString("-7.868785750012534e-017")));
    ctmArray.add((new COSString("0.003591954022988553")));
    ctmArray.add((new COSString("-80.77532309213824")));
    ctmArray.add((new COSString("36.77844766314338")));
    return ctmArray;
}