{smcl} {* *! version 1.0 07sep2024}{...} {vieweralsosee "[D] import" "mansection D import"}{...} {viewerjumpto "Syntax" "crsconvert##syntax"}{...} {viewerjumpto "Description" "crsconvert##description"}{...} {viewerjumpto "Options" "crsconvert##options"}{...} {viewerjumpto "Examples" "crsconvert##examples"}{...} {title:Title} {phang} {bf:crsconvert} {hline 2} Convert coordinates between different coordinate reference systems in the GeoTIFF file {marker syntax}{...} {title:Syntax} {p 8 17 2} {cmdab:crsconvert} {it:varlist}, {cmd:gen({it:string})} {cmd:from({it:string})} {cmd:to({it:string})} {p 8 17 2} varlist must contain exactly two numeric variables representing x and y coordinates in the source coordinate reference system. {marker description}{...} {title:Description} {pstd} The {cmd:crsconvert} command converts coordinates from one coordinate reference system to another. It creates two new variables containing the transformed coordinates. {marker Dependencies}{...} {title:Dependencies} {pstd} The {cmd:crsconvert} command requires Java libraries from GeoTools. Use geotools_init for setting up. {marker options}{...} {title:Options} {phang} {opt gen(prefix_)} specifies the prefix for the two new variables that will contain the transformed coordinates. The new variables will be named {it:prefix_}x and {it:prefix_}y. {phang} {opt from(string, tif shp)} specifies the source coordinate reference system. It might be provided in EPSG format(e.g. "EPSG:4326"). The coordinate reference system can be provided in EPSG format (e.g., "EPSG:4326"). Alternatively, users have the option to specify a GeoTIFF file (SHP file) using the {opt tif} ({opt shp}) option to denote the source of the coordinate reference system. This approach is highly practical, considering that the coordinate reference system sometimes may not conform to a standard EPSG format and instead contains detailed projection parameters. If a file is specified, the command automatically identify its coordinate reference system. {phang} {opt to(string, tif shp)} specifies the source coordinate reference system. It might be provided in EPSG format(e.g. "EPSG:4326"). Alternatively, users have the option to specify a GeoTIFF file (SHP file) using the {opt tif} ({opt shp}) option to denote the source of the coordinate reference system. {marker examples}{...} {title:Examples} {pstd}convert the coordinate system of the hunan.shp to the coordinate system of the DMSP-like2020.tif:{p_end} {phang2}{cmd:. shp2dta using "hunan.shp", database(hunan_db) coordinates(hunan_coord) genid(id)}{p_end} {phang2}{cmd:. use "hunan_coord.dta",clear}{p_end} {phang2}{cmd:. drop if missing(_X, _Y)}{p_end} {phang2}{cmd:. crsconvert _X _Y, gen(alber_) from(hunan.shp) to(DMSP-like2020.tif)}{p_end} {title:Author} {pstd}Kerry Du{p_end} {pstd}School of Managemnet, Xiamen University, China{p_end} {pstd}Email: kerrydu@xmu.edu.cn{p_end} {pstd}Chunxia Chen{p_end} {pstd}School of Managemnet, Xiamen University, China{p_end} {pstd}Email: 35720241151353@stu.xmu.edu.cn {pstd}Shuo Hu{p_end} {pstd}School of Economics, Southwestern University of Finance and Economics, China{p_end} {pstd}advancehs@163.com{p_end} {pstd}Yang Song{p_end} {pstd}School of Economics, Hefei University of Technology, China{p_end} {pstd}Email: ss0706082021@163.com {pstd}Ruipeng Tan{p_end} {pstd}School of Economics, Hefei University of Technology, China{p_end} {pstd}Email: tanruipeng@hfut.edu.cn