Q:

What is maximum points limit for Google's heatmap feature? 

Hello there's I am use google's Heatmap feature in my project.  I do not know whats the maximum points (latitude ,longitude )limit for google's heatmap to visualization. 

A:

There is no limit to the number of points added to the heatmap, but there are practical constraints (the memory of the device displaying them, the time to load them, etc.)