Electromagnetic Heatmap Creation

I need a plan view of a heatmap or schematic to visualize the electromagnetic field strength from Helmholtz coils with an aquarium tank in between the tank. The heatmap will represent magnetic field strength.

Requirements:
- Visual representation of electromagnetic data
- Accurate mapping of Helmholtz coil output
- Ability to generate clear, detailed heatmaps

Ideal Skills:
- Experience with data visualization tools
- Proficiency in graphic design software