PUBLIC MARKS from sbrothier with tags lowpoly & maps

I have created a google map using google map javascript API V3. I am drawing number of zipcode polygons. The polygons are of different colors depending upon some condition. Now I want to draw straight lines/ hash marks inside some of the polygons depending upon certain criteria. How can we do it. Below is the code which I have written for drawing the polygons.

This application is also available with Large map. This is a drawing tool for polyline, polygon, polygon with holes, rectangle, circle, marker(icon), direction(route, path). This application uses the Google Maps API Version 3 (V3). It has all the features of Google Maps MyMaps and has direct access to the code for the shapes (overlays) you create. It should be a full-fledged alternative. You draw and create a map with the shapes you want. KML or Javascript code is presented in the textarea. You copy KML code and paste it into a text editor. Then you have a KML file you may upload to your website. This application should now also serve as a mature alternative to my online V2 tool Digitizer tool