topic Re: How to calculate the specified region area with raster in arcgis engine? in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/how-to-calculate-the-specified-region-area-with/m-p/150196#M3895 <HTML><HEAD></HEAD><BODY><SPAN>I am sorry I am not familiar with envi.&nbsp; It is best to create a new post for new questions, that way it can get the attention of more knowledgeable people.</SPAN></BODY></HTML> Mon, 02 Dec 2013 16:23:43 GMT AlexanderGray 2013-12-02T16:23:43Z How to calculate the specified region area with raster in arcgis engine? https://community.esri.com/t5/arcobjects-sdk-questions/how-to-calculate-the-specified-region-area-with/m-p/150193#M3892 <HTML><HEAD></HEAD><BODY><SPAN>use the "Image classification" we can classify the raster image by "supervised classification",but how to calculate their area?I mean that,If the classification number is 4,and How can I calculate each of the four item area?</SPAN><BR /><SPAN>Thank you very much.</SPAN></BODY></HTML> Sat, 30 Nov 2013 04:10:13 GMT https://community.esri.com/t5/arcobjects-sdk-questions/how-to-calculate-the-specified-region-area-with/m-p/150193#M3892 kju 2013-11-30T04:10:13Z Re: How to calculate the specified region area with raster in arcgis engine? https://community.esri.com/t5/arcobjects-sdk-questions/how-to-calculate-the-specified-region-area-with/m-p/150194#M3893 <HTML><HEAD></HEAD><BODY><SPAN>ZonalStatisticsAsTable (needs SpatialAnalyst) should get the Sum of all cells for each zone (value.)&nbsp; Multiply the number of cells by the area of a single cell and you have the area of each zone.&nbsp; The Zonal toolbox has other functions you might want to look at to do similar things.&nbsp; If no spatial analyst, write code to count the number of cells of each value and multiply by area of single cell.</SPAN></BODY></HTML> Mon, 02 Dec 2013 12:49:39 GMT https://community.esri.com/t5/arcobjects-sdk-questions/how-to-calculate-the-specified-region-area-with/m-p/150194#M3893 AlexanderGray 2013-12-02T12:49:39Z Re: How to calculate the specified region area with raster in arcgis engine? https://community.esri.com/t5/arcobjects-sdk-questions/how-to-calculate-the-specified-region-area-with/m-p/150195#M3894 <HTML><HEAD></HEAD><BODY><BLOCKQUOTE class="jive-quote">ZonalStatisticsAsTable (needs SpatialAnalyst) should get the Sum of all cells for each zone (value.)&nbsp; Multiply the number of cells by the area of a single cell and you have the area of each zone.&nbsp; The Zonal toolbox has other functions you might want to look at to do similar things.&nbsp; If no spatial analyst, write code to count the number of cells of each value and multiply by area of single cell.</BLOCKQUOTE><BR /><SPAN> </SPAN><BR /><SPAN>Thanks for your response,I will try the way you give,Can I have another question?If I want to imitate the supervise classification in envi,and I want to implement it by arcgis engine C#,I mean that,I seems not that easy to analyst the change of two image,Isn't it?</SPAN></BODY></HTML> Mon, 02 Dec 2013 14:16:47 GMT https://community.esri.com/t5/arcobjects-sdk-questions/how-to-calculate-the-specified-region-area-with/m-p/150195#M3894 kju 2013-12-02T14:16:47Z Re: How to calculate the specified region area with raster in arcgis engine? https://community.esri.com/t5/arcobjects-sdk-questions/how-to-calculate-the-specified-region-area-with/m-p/150196#M3895 <HTML><HEAD></HEAD><BODY><SPAN>I am sorry I am not familiar with envi.&nbsp; It is best to create a new post for new questions, that way it can get the attention of more knowledgeable people.</SPAN></BODY></HTML> Mon, 02 Dec 2013 16:23:43 GMT https://community.esri.com/t5/arcobjects-sdk-questions/how-to-calculate-the-specified-region-area-with/m-p/150196#M3895 AlexanderGray 2013-12-02T16:23:43Z