From e8c5b1e8577ef33e9440ca5766dd4bb70c6b0d64 Mon Sep 17 00:00:00 2001
From: Greg Mooney <gjmooney@asu.edu>
Date: Wed, 6 Nov 2024 12:05:33 +0100
Subject: [PATCH] Add nodata to geotiff source (#198)

---
 packages/base/src/mainview/mainView.tsx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/base/src/mainview/mainView.tsx b/packages/base/src/mainview/mainView.tsx
index 81590c50..5a597f12 100644
--- a/packages/base/src/mainview/mainView.tsx
+++ b/packages/base/src/mainview/mainView.tsx
@@ -395,8 +395,12 @@ export class MainView extends React.Component<IProps, IStates> {
       case 'GeoTiffSource': {
         const sourceParameters = source.parameters as IGeoTiffSource;
 
+        const addNoData = (url: (typeof sourceParameters.urls)[0]) => {
+          return { ...url, nodata: 0 };
+        };
+
         newSource = new GeoTIFFSource({
-          sources: sourceParameters.urls,
+          sources: sourceParameters.urls.map(addNoData),
           normalize: sourceParameters.normalize,
           wrapX: sourceParameters.wrapX
         });