topic Strange problem with mapAlgebraOp in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/strange-problem-with-mapalgebraop/m-p/554086#M14995 <HTML><HEAD></HEAD><BODY><SPAN>I have a raster with 5 distinct values (1-5).I use a&nbsp; map algebra Operator to execute different expretions and then i use a raster Renderer to give the integer values of the raster colors.</SPAN><BR /><BR /><SPAN>When i execute this exprestionToCalculate="con( [fhi] == 1, 1, con( [fhi] &gt; 2, 2))"; the output raster has 2 values 1,2 and -here is the strange - when i run this exprestionToCalculate="con( [fhi] == 1, 1, con( [fhi] == 2, 2, con( [fhi] &gt; 3, 3)))"; the raster has 3 values 1,3 and 2.00000001. I have tried all the compinations and when i have more the 2 con on the save exprestion only the first and the last con return real integer, the other return a number close to an integer (3.00000001, 4.00000001). After i execute the Operator&nbsp; i first save the raster in GRID format and then i make a layer from it useing a raster renderer.</SPAN></BODY></HTML> Mon, 07 May 2012 22:40:08 GMT kostasgobakis 2012-05-07T22:40:08Z Strange problem with mapAlgebraOp https://community.esri.com/t5/arcobjects-sdk-questions/strange-problem-with-mapalgebraop/m-p/554086#M14995 <HTML><HEAD></HEAD><BODY><SPAN>I have a raster with 5 distinct values (1-5).I use a&nbsp; map algebra Operator to execute different expretions and then i use a raster Renderer to give the integer values of the raster colors.</SPAN><BR /><BR /><SPAN>When i execute this exprestionToCalculate="con( [fhi] == 1, 1, con( [fhi] &gt; 2, 2))"; the output raster has 2 values 1,2 and -here is the strange - when i run this exprestionToCalculate="con( [fhi] == 1, 1, con( [fhi] == 2, 2, con( [fhi] &gt; 3, 3)))"; the raster has 3 values 1,3 and 2.00000001. I have tried all the compinations and when i have more the 2 con on the save exprestion only the first and the last con return real integer, the other return a number close to an integer (3.00000001, 4.00000001). After i execute the Operator&nbsp; i first save the raster in GRID format and then i make a layer from it useing a raster renderer.</SPAN></BODY></HTML> Mon, 07 May 2012 22:40:08 GMT https://community.esri.com/t5/arcobjects-sdk-questions/strange-problem-with-mapalgebraop/m-p/554086#M14995 kostasgobakis 2012-05-07T22:40:08Z