Use an Albers, Lambert, Winkel Tripel, or other map projection. In QGIS, for raster datasets, use the Assign Projection tool in the GDAL toolset. :( Any help would be greatly appreciated. Ready to get started Create a free account to start building with Mapbox. In ArcGIS Pro, use the Define Projection tool, not the Project tool. I'm really confused and not sure what I'm doing wrong. Of course, I tried define projection function several times, but I don't know which projection should I use. I can not cover this raster with the other one. This person seems to be having a similar problem: My problem is, one of them doesen't have prj file, therefore I don't know what is the projection of this one. Unfortunately when I used the measure tool to test out my new file, it said the county was less than a mile across. I used arc catalog to change the coordinate system using properties (I also tried defining the coordinate system through the toolbox and and using the project tool) of all of my shapefiles and though ok this should work. In the window that opens make sure that the. On the Map Properties dialog box, click the Coordinate Systems tab. Then under the Raster menu select Projections and Warp (Reproject). After doing some searching online and on the Esri resource center I found that I would need to change my coordinate system to a Projected Coordinate System and after some more searching I needed to change my coordinate system to State Plane (US Feet) California zone 6 for Orange County, California. In the Contents pane, right-click a map or a scene and click Properties. The tools for defining a projection really only assign the projection metadata to describe what is already true about the coordinates of the raster. I was trying to use the near tool with my data and realized that it was giving me the distance in decimal degrees. I'm a beginner with GIS and it really helps!
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