Library provides 3 following functions:
* text output drawing based on a line
* text output drawing based on a circle
* text output drawing based on a curve
There are several general parameters for each function:
* font characteristic (name, style, size, color etc);
* symbol color;
* intersimbol space;
* symbols orientation;
* symbols carrying line affixment
Output can be done per symbol. Different output effects can be used per symbol as well.
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