The Scale tab allows one to increase or decrease the size of the tiles depending on the row and column position. The following options are available to scale tiles:
Scale X, Scale Y: Scales each tile in terms of percentage. A random factor can be added.
Exponent: Scale each tile with an exponential factor. The nominal scaling S becomes Sexponent.
Base: Used to create a logarithmic spiral along with Rotation. The nominal scaling S becomes baseS-1 unless base is one in which case scaling remains unchanged. Use a value less than 1 for a converging spiral and a value greater than 1 for a diverging spiral. A true logarithmic spiral would use a base of e = 2.718 (or 1/e = 0.368). See the Tile Tricks section for examples.
Alternate: Alternate scaling up and scaling down tiles.
Cumulate: Scaling is cumulative.
A P1 symmetry tiling with a negative scaling. There is an –15% x scaling for each column and a –15% y scaling for each row. The scaling is a percentage of the base tile bounding box. The spacing between the center of adjacent tiles remains fixed.
A P1 symmetry tiling with a cumulative negative scaling. There is a –10% x scaling for each column and a –10% y scaling for each row. There is also a –5% x shift for each column and a –5% y shift for each row. The Cumulate box is checked for both x and y. A general rule is that to keep scaled tiles just touching, specify a cumulative shift that is half of the scaling (in percent).