topic Re: Projecting a Raster in Data Management Questions https://community.esri.com/t5/data-management-questions/projecting-a-raster/m-p/114822#M6544 <HTML><HEAD></HEAD><BODY><P><SPAN style="background-color: #ffffff;">Could you suggest an appropriate cell size etc to set?</SPAN></P></BODY></HTML> Fri, 16 Dec 2016 13:28:45 GMT MuneshwarParasram 2016-12-16T13:28:45Z Projecting a Raster https://community.esri.com/t5/data-management-questions/projecting-a-raster/m-p/114819#M6541 <HTML><HEAD></HEAD><BODY><P style="color: #242729; background-color: rgba(248, 248, 248, 0.6); border: 0px; margin: 0px 0px 1em;">I am trying to project the ESRI OpenStreet raster map from WGS Auxillary Mercator projection to WGS 1984 geographic<SPAN class="" style="color: #405a04; background: #d1e1ad; border: 0px;"> coordinate</SPAN>system. This is to be used within a third party application ( NOT ESRI!) in which the WGS 1984 geographic system IS REQUIRED.The third party application cannot<SPAN class="" style="color: #405a04; background: #d1e1ad; border: 0px;"> project</SPAN> on the fly<SPAN class="" style="color: #405a04; background: #d1e1ad; border: 0px;">.</SPAN>therefore I must reproject the image.<SPAN class="" style="color: #405a04; background: #d1e1ad; border: 0px;"> I´ve</SPAN> tried using the project raster tool which uses the NEAREST resampling method. The image appears blurry and unnoticeable.</P><P style="color: #242729; background-color: rgba(248, 248, 248, 0.6); border: 0px; margin: 0px 0px 1em;">Projecting this raster takes a long time so Can some please advise on an appropriate<SPAN class="" style="color: #405a04; background: #d1e1ad; border: 0px;"> methodology</SPAN>?</P></BODY></HTML> Wed, 14 Dec 2016 19:31:18 GMT https://community.esri.com/t5/data-management-questions/projecting-a-raster/m-p/114819#M6541 MuneshwarParasram 2016-12-14T19:31:18Z Re: Projecting a Raster https://community.esri.com/t5/data-management-questions/projecting-a-raster/m-p/114820#M6542 <HTML><HEAD></HEAD><BODY><P><A class="link-titled" href="http://desktop.arcgis.com/en/arcmap/latest/tools/data-management-toolbox/project-raster.htm" title="http://desktop.arcgis.com/en/arcmap/latest/tools/data-management-toolbox/project-raster.htm">Project Raster—Help | ArcGIS Desktop</A>&nbsp;</P><P>dor categorical data, you have nearest neighbour or majority as the best choices... neither should change the values. &nbsp;I suspect you are not setting cell size appropriately and/or the extent or other settings. &nbsp;Rea the help and don't use the defaults unless you know they are appropriate for your situation.</P></BODY></HTML> Wed, 14 Dec 2016 23:10:30 GMT https://community.esri.com/t5/data-management-questions/projecting-a-raster/m-p/114820#M6542 DanPatterson_Retired 2016-12-14T23:10:30Z Re: Projecting a Raster https://community.esri.com/t5/data-management-questions/projecting-a-raster/m-p/114821#M6543 <HTML><HEAD></HEAD><BODY><P>Could you suggest an appropriate cell size etc to set?</P></BODY></HTML> Fri, 16 Dec 2016 13:27:52 GMT https://community.esri.com/t5/data-management-questions/projecting-a-raster/m-p/114821#M6543 MuneshwarParasram 2016-12-16T13:27:52Z Re: Projecting a Raster https://community.esri.com/t5/data-management-questions/projecting-a-raster/m-p/114822#M6544 <HTML><HEAD></HEAD><BODY><P><SPAN style="background-color: #ffffff;">Could you suggest an appropriate cell size etc to set?</SPAN></P></BODY></HTML> Fri, 16 Dec 2016 13:28:45 GMT https://community.esri.com/t5/data-management-questions/projecting-a-raster/m-p/114822#M6544 MuneshwarParasram 2016-12-16T13:28:45Z Re: Projecting a Raster https://community.esri.com/t5/data-management-questions/projecting-a-raster/m-p/114823#M6545 <HTML><HEAD></HEAD><BODY><P>by default it takes 1/250 of the width. &nbsp;that is not appropriate in most cases... it is something that you have to determine based upon consideration of what other data you intend to use and your inter-point spacing that is being used in the interpolation</P></BODY></HTML> Fri, 16 Dec 2016 19:10:10 GMT https://community.esri.com/t5/data-management-questions/projecting-a-raster/m-p/114823#M6545 DanPatterson_Retired 2016-12-16T19:10:10Z