Use image center when computing flying height

DOI-USGS · May 14, 2024 · 29a64ea · 29a64ea
1 parent 3955102
commit 29a64ea
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/src/UsgsAstroLsSensorModel.cpp b/src/UsgsAstroLsSensorModel.cpp
@@ -629,8 +629,10 @@ void UsgsAstroLsSensorModel::updateState() {
       "based on dx {} dy {} dz {}",
       m_gsd, dx, dy, dz)
 
-  // Compute flying height
-  csm::EcefCoord sensorPos = getSensorPosition(0.0);
+  // Compute the flying height. Use the center of the image, as for
+  // m_referencePointXyz and m_gsd.
+  ip = csm::ImageCoord(lineCtr, sampCtr);
+  csm::EcefCoord sensorPos = getSensorPosition(ip);
   dx = sensorPos.x - m_referencePointXyz.x;
   dy = sensorPos.y - m_referencePointXyz.y;
   dz = sensorPos.z - m_referencePointXyz.z;