Topology3D - PCA Fixed Interactive Foot Scan Measurement Step 1: Upload Files Foot Scan (.ply): Calibration File (.json or .txt): Load Files š Calibration Data: Step 2: Select 3 Points for Slicing Instructions: Click on the 3D model to select exactly 3 points that define the plane where you want to slice the foot. Selected Points: 0/3 Slice Thickness (mm): Thickness of the slice for measurement (1-50mm) Reset Points Measure Slice Step 3: Measurement Results