Cap the inferred dtype at float for geotiff writing

Unidata · Feb 14, 2024 · 98056eb · 98056eb
1 parent 882a5fa
commit 98056eb
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/cdm/misc/src/main/java/ucar/nc2/geotiff/GeotiffWriter.java b/cdm/misc/src/main/java/ucar/nc2/geotiff/GeotiffWriter.java
@@ -193,6 +193,10 @@ void writeGrid(GridDatatype grid, Array data, boolean greyScale, double xStart,
 
     if (dtype == null) {
       dtype = data.getDataType();
+      // Need to cap at single precision floats because that's what gets written for floating points
+      if (dtype == DataType.DOUBLE) {
+        dtype = DataType.FLOAT;
+      }
     }
 
     // get rid of this when all projections are implemented
@@ -817,6 +821,10 @@ public void writeGrid(GeoReferencedArray array, boolean greyScale, DataType dtyp
 
     if (dtype == null) {
       dtype = data.getDataType();
+      // Need to cap at single precision floats because that's what gets written for floating points
+      if (dtype == DataType.DOUBLE) {
+        dtype = DataType.FLOAT;
+      }
     }
 
     /*