Returns a simplified version of a geometry formed by applying the Douglas-Peucker algorithm to each piece of line-work in the geometry.
The result will be a geometry that approximates the original geometry using fewer vertices. The line-work of the resulting geometry will lie entirely within the specified tolerance of the original geometry's line-work.
Parameter 1 - the geometry to be simplified.
Parameter 2 - the required tolerance (must be a positive number).
Returns: the simplified geometry.