/** * Computes a series of bounding boxes (PDRectangle) from a list of TextPositions. It will create * a new bounding box if the vertical tolerance is exceeded * * @param positions * @throws IOException */ public List<PDRectangle> getTextBoundingBoxes(final List<TextPosition> positions) { final List<PDRectangle> boundingBoxes = new ArrayList<PDRectangle>(); float lowerLeftX = -1, lowerLeftY = -1, upperRightX = -1, upperRightY = -1; boolean first = true; for (int i = 0; i < positions.size(); i++) { final TextPosition position = positions.get(i); if (position == null) { continue; } final Matrix textPos = position.getTextPos(); final float height = position.getHeight() * getHeightModifier(); if (first) { lowerLeftX = textPos.getXPosition(); upperRightX = lowerLeftX + position.getWidth(); lowerLeftY = textPos.getYPosition(); upperRightY = lowerLeftY + height; first = false; continue; } // we are still on the same line if (Math.abs(textPos.getYPosition() - lowerLeftY) <= getVerticalTolerance()) { upperRightX = textPos.getXPosition() + position.getWidth(); upperRightY = textPos.getYPosition() + height; } else { final PDRectangle boundingBox = boundingBox(lowerLeftX, lowerLeftY, upperRightX, upperRightY); boundingBoxes.add(boundingBox); // new line lowerLeftX = textPos.getXPosition(); upperRightX = lowerLeftX + position.getWidth(); lowerLeftY = textPos.getYPosition(); upperRightY = lowerLeftY + height; } } if (!(lowerLeftX == -1 && lowerLeftY == -1 && upperRightX == -1 && upperRightY == -1)) { final PDRectangle boundingBox = boundingBox(lowerLeftX, lowerLeftY, upperRightX, upperRightY); boundingBoxes.add(boundingBox); } return boundingBoxes; }