Add code to avoid re-plotting of the same chart again if it is already loaded and rendered.
Add code to avoid re-plotting of the same chart again if it is already loaded and rendered.

pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus-service,pegasus-isi/pegasus-service,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus-service,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus