topic merged features in TIN vs raster mosaic in Elevation Data Questions https://community.esri.com/t5/elevation-data-questions/merged-features-in-tin-vs-raster-mosaic/m-p/859626#M168 <HTML><HEAD></HEAD><BODY><P>I have a five lines feature classes that I originally created individual TINS (Create TIN gp tool) for, from the TINS I created rasters (TIN to Raster gp tool). I then mosaicked all the grids into one master grid(Mosaic To New Raster gp tool) using the mosiac operator of maximum.</P><P>Looking for a way to be more efficient,&nbsp; I merged (Merge gp tool)&nbsp; the five line feature classes into one&nbsp; line feature class, then converted the lines to a TIN (Create TIN gp tool) and the TIN into a grid (TIN to Raster gp tool). All feature classes are in a file geodatabase. </P><P>When I do raster math subtracting one grid from the other, I am seeing massive differences (almost 50ft). I can understand some differences on the edges where the tinning is behaving differently than the mosaicing, however there are 10 foot differences between the line features.</P><P>Does anyone have any ideas on what might be causing the problems, and which data is correct?</P><P>Thanks</P></BODY></HTML> Fri, 15 Dec 2017 17:07:04 GMT Kevin_Smith 2017-12-15T17:07:04Z merged features in TIN vs raster mosaic https://community.esri.com/t5/elevation-data-questions/merged-features-in-tin-vs-raster-mosaic/m-p/859626#M168 <HTML><HEAD></HEAD><BODY><P>I have a five lines feature classes that I originally created individual TINS (Create TIN gp tool) for, from the TINS I created rasters (TIN to Raster gp tool). I then mosaicked all the grids into one master grid(Mosaic To New Raster gp tool) using the mosiac operator of maximum.</P><P>Looking for a way to be more efficient,&nbsp; I merged (Merge gp tool)&nbsp; the five line feature classes into one&nbsp; line feature class, then converted the lines to a TIN (Create TIN gp tool) and the TIN into a grid (TIN to Raster gp tool). All feature classes are in a file geodatabase. </P><P>When I do raster math subtracting one grid from the other, I am seeing massive differences (almost 50ft). I can understand some differences on the edges where the tinning is behaving differently than the mosaicing, however there are 10 foot differences between the line features.</P><P>Does anyone have any ideas on what might be causing the problems, and which data is correct?</P><P>Thanks</P></BODY></HTML> Fri, 15 Dec 2017 17:07:04 GMT https://community.esri.com/t5/elevation-data-questions/merged-features-in-tin-vs-raster-mosaic/m-p/859626#M168 Kevin_Smith 2017-12-15T17:07:04Z