https://community.esri.com/t5/3d-questions/geodesic-viewshed-glitch-weird-data-gaps/m-p/1663729#M5442 <P>Hi ESRI community!</P><P>I'm getting weird data gaps in the output raster that run west-east when I run Geodesic Viewshed. They look like horizontal lines like stripes, where it alternates between a value and NoData.</P><P><A href="https://imgur.com/a/sEWV2fZ" target="_blank" rel="noopener">https://imgur.com/a/sEWV2fZ</A></P><P>The purpose of the analysis is to look at how much of the ocean is visible from three points of a waterfront park. I'm using a DSM from the Government of Canada, which I stitched with a generic raster with a value of -1 to fill in for any gaps (particularly for water further from the shore as the DSM only provided a certain distance from the shoreline).</P><P>Parameters:</P><UL><LI>Analysis type: Observers</LI><LI>Observer offset: 1.6 m</LI></UL><P>Any ideas of how to solve this is appreciated!</P><P>&nbsp;</P> Wed, 05 Nov 2025 20:49:50 GMT AveryChan 2025-11-05T20:49:50Z https://community.esri.com/t5/3d-questions/geodesic-viewshed-glitch-weird-data-gaps/m-p/1663729#M5442 <P>Hi ESRI community!</P><P>I'm getting weird data gaps in the output raster that run west-east when I run Geodesic Viewshed. They look like horizontal lines like stripes, where it alternates between a value and NoData.</P><P><A href="https://imgur.com/a/sEWV2fZ" target="_blank" rel="noopener">https://imgur.com/a/sEWV2fZ</A></P><P>The purpose of the analysis is to look at how much of the ocean is visible from three points of a waterfront park. I'm using a DSM from the Government of Canada, which I stitched with a generic raster with a value of -1 to fill in for any gaps (particularly for water further from the shore as the DSM only provided a certain distance from the shoreline).</P><P>Parameters:</P><UL><LI>Analysis type: Observers</LI><LI>Observer offset: 1.6 m</LI></UL><P>Any ideas of how to solve this is appreciated!</P><P>&nbsp;</P> Wed, 05 Nov 2025 20:49:50 GMT https://community.esri.com/t5/3d-questions/geodesic-viewshed-glitch-weird-data-gaps/m-p/1663729#M5442 AveryChan 2025-11-05T20:49:50Z