I Am a new user of arc GIS. i added some shape-files to a topographic map but they are not in the right place, do i need to define coordinate system o move the files to the right place? and do i need to save it as a project for future use? can anyone help me about it?
Yes to both... use the Define projection tool, assuming you know what the coordinate system of the files are in.
If you don't, then it becomes a guessing game as to the match... but examining the coordinates in a new data frame might give you an idea whether if is projected or not already.
thank you for your answer,
i defined projection system wgs84 for the files in arc catalog environment, then i wanted to re project coordinate system for the shp files to utm10n (san jose-ca) but the output gives me error 9999 and no matter what i try to fix it, it doesnot work.
i really appreciate your help