** proj **

[swig] based binding for tcl for the proj.4 library using the new API described [https://proj4.org/development/reference/index.html%|%here%|%].

*** usage***







*** swig wrapper ***

file: proj.i

======
%module proj

%{
#include <proj.h>
%}

%include <proj.h>
======

*** build ***

======
swig -tcl  -pkgversion 1.0 -I/usr/include proj.i
gcc -shared -fpic -DUSE_TCL_STUBS proj_wrap.c -o proj.so -ltclstub8.6 -lproj
======
file: pkgIndex.tcl
======
package ifneeded proj 1.0 [list load [file join $dir proj.so]]
======

***bugs***

A number of functions do not work using this simple wrapper.
======
PJ  *proj_create_argv (PJ_CONTEXT *ctx, int argc, char **argv);
int proj_trans_array (PJ *P, PJ_DIRECTION direction, size_t n, PJ_COORD *coord);
double proj_roundtrip (PJ *P, PJ_DIRECTION direction, int n, PJ_COORD *coord);
void proj_log_func (PJ_CONTEXT *ctx, void *app_data, PJ_LOG_FUNCTION logf);
const PJ_OPERATIONS       *proj_list_operations(void);
const PJ_ELLPS            *proj_list_ellps(void);
const PJ_UNITS            *proj_list_units(void);
const PJ_PRIME_MERIDIANS  *proj_list_prime_meridians(void);
double proj_dmstor(const char *is, char **rs);

======

 





<<categories>>GIS