simplify vertex by Douglas-Peucker's algorithm

Question

https://transparentgov.net:3200/googlemaps221/default?layer_id=3&layer=Engineering+Districts&center_lat=34.11196268573702&center_long=-118.43928391858846&center_zoom=10&url=https%3A%2F%2Fmaps.lacity.org%2Farcgis%2Frest%2Fservices%2FMapping%2FOverviewmap%2FMapServer&overlayType=overlayType_image&panto=0&maxAllowableOffset=0.05

 

 

https://transparentgov.net/json2tree/esri/server/folder.html?url=https%3A%2F%2Fmaps.lacity.org%2Farcgis%2Frest%2Fservices&org=Los+Angeles+CA+navigateLA&_center_lat=34.03873829713124&_center_long=-118.28231400465035&_center_zoom=16&select_folder=19&select_layer=3