API: Invert each scan axes for LYNX dataloaders (#73)

Inverting the axes (multiply the scan positions by -1) matches the exisiting reconstruction conventions/expections for foldslice. Generally, inverting the axes should cause a rotation of the diffraction pattern by 180, so I'm not sure why this hasn't been an obvious bug.
AdvancedPhotonSource · Feb 21, 2024 · cc49202 · cc49202
1 parent 2d97660
commit cc49202
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/ptychodus/plugins/lynxOrchestraScanFile.py b/ptychodus/plugins/lynxOrchestraScanFile.py
@@ -72,8 +72,8 @@ def read(self, filePath: Path) -> Scan:
 
                 data_point = int(row[self.DATA_POINT_COLUMN])
                 point = ScanPoint(
-                    x=float(row[self.X_COLUMN]) * self.MICRONS_TO_METERS,
-                    y=float(row[self.Y_COLUMN]) * self.MICRONS_TO_METERS,
+                    x=-float(row[self.X_COLUMN]) * self.MICRONS_TO_METERS,
+                    y=-float(row[self.Y_COLUMN]) * self.MICRONS_TO_METERS,
                 )
                 pointSeqMap[data_point].append(point)
 

diff --git a/ptychodus/plugins/lynxSoftGlueZynqScanFile.py b/ptychodus/plugins/lynxSoftGlueZynqScanFile.py
@@ -69,8 +69,8 @@ def read(self, filePath: Path) -> Scan:
 
                 detector_count = int(row[DETECTOR_COUNT])
                 point = ScanPoint(
-                    x=float(row[X]) * LYNXSoftGlueZynqScanFileReader.MICRONS_TO_METERS,
-                    y=float(row[Y]) * LYNXSoftGlueZynqScanFileReader.MICRONS_TO_METERS,
+                    x=-float(row[X]) * LYNXSoftGlueZynqScanFileReader.MICRONS_TO_METERS,
+                    y=-float(row[Y]) * LYNXSoftGlueZynqScanFileReader.MICRONS_TO_METERS,
                 )
                 pointSeqMap[detector_count].append(point)