DashGeometricEffect

Creates a dash geometric effect using the provided template to define dashes and gaps. Transforms the representation of a line using a pattern of dashes and gaps. Dashes are the symbolized portion of the stroke and gaps are the unsymbolized portion. A MutableList of dash and gap distances (non-negative DIP values) provides a template to be repeated throughout the line. A basic template consists of two distance values: the first defines the length of each dash and the second defines the length of each gap. More complex effects can be created by defining a template of multiple dashes and gaps. Template values are read as dash distance followed by gap distance throughout the pattern. Templates that contain an odd number of values will maintain the dash-gap pattern by restarting at the beginning of the template. A template of '3 2 1', for example will be rendered as '3(dash) 2(gap) 1(dash) 3(gap) 2(dash) 1(gap) ...'. The default template is an empty MutableList, which renders a solid line. If any value in the dash pattern is negative, the function will throw an exception.

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