fix(write-image): avoid transposing direction matrix

PaulHax · PaulHax · commit ad9ca85eedc4 · 2023-12-06T14:53:56.000-05:00
Fixes #1011
diff --git a/packages/image-io/write-image.cxx b/packages/image-io/write-image.cxx
@@ -117,7 +117,7 @@ int writeImage(itk::wasm::InputImageIO & inputImageIO, itk::wasm::OutputTextStre
   {
     for (unsigned int dd = 0; dd < dimension; ++dd)
     {
-      direction[dd] = directionContainer->GetElement(dim*dimension + dd);
+      direction[dd] = directionContainer->GetElement(dim + dimension*dd);
     }
     imageIO->SetDirection(dim, direction);
     imageIO->SetOrigin(dim, inputImageIOBase->GetOrigin(dim));

Original file line number	Diff line number	Diff line change
`@@ -117,7 +117,7 @@ int writeImage(itk::wasm::InputImageIO & inputImageIO, itk::wasm::OutputTextStre`
`117`	`117`	`{`
`118`	`118`	`for (unsigned int dd = 0; dd < dimension; ++dd)`
`119`	`119`	`{`
`120`		`- direction[dd] = directionContainer->GetElement(dim*dimension + dd);`
	`120`	`+ direction[dd] = directionContainer->GetElement(dim + dimension*dd);`
`121`	`121`	`}`
`122`	`122`	`imageIO->SetDirection(dim, direction);`
`123`	`123`	`imageIO->SetOrigin(dim, inputImageIOBase->GetOrigin(dim));`