Common English or German words, 1-letter-expressions, urls and email addresses are filtered out.
Text between quotes as one word: if one occurrence of a multi-word group is put between quotation marks ("), it will be regarded as one word throughout the text
bigger values give the words more space to be placed. If there is too much space, there is no restraint for them to stay within the elliptical or rectangular shape. If there is too little space, some words do not fit in the shape and are place randomly on the sides. Also, placement will take longer if the compaction value is small.