working version

data_acq_and_processing/common_cpp/config/include/run_config.hpp

@@ -116,15 +116,20 @@ struct PreprocessConfig {
 };
 
 struct GprTxGeometry {
-    // Transmitter geometry keyed by output switch position.
+    // Transmitter geometry keyed by output switch position. y_m/z_m default to 0 so
+    // legacy 1D configs continue to render in the y=0, z=0 plane.
     std::uint32_t output_pos = 0;
     float x_m = 0.0F;
+    float y_m = 0.0F;
+    float z_m = 0.0F;
 };
 
 struct GprRxGeometry {
-    // Receiver geometry keyed by input switch position.
+    // Receiver geometry keyed by input switch position. y_m/z_m default to 0.
     std::uint32_t input_pos = 0;
     float x_m = 0.0F;
+    float y_m = 0.0F;
+    float z_m = 0.0F;
 };
 
 struct GprConfig {