Graphic Visualization

Hi! I am a master degree student and for my project I need to make some environmental analysis. I am using grasshopper/ladybug (as beginner) for the radiation analysis but unfortunately I am having some problems about it. When I put the definition on canvas everything looks ok but I can not see any solution or chart on Rhino screen.
I couldn’t understand why, and also I tried another variations but still there is nothing.

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