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/*
* This file is Copyright (c) 2010 by the GPSD project
* BSD terms apply: see the file COPYING in the distribution root for details.
*
* Python binding for selected libgps library functions
*/
#include <Python.h>
#include <stdio.h>
#include "gps.h"
#include "gpsdclient.h"
/*
* Client utility functions
*/
static PyObject *
gpsclient_deg_to_str(PyObject *self, PyObject *args)
{
int fmt;
double degrees;
if (!PyArg_ParseTuple(args, "id", &fmt, °rees))
return NULL;
return Py_BuildValue("s", deg_to_str((enum deg_str_type)fmt, degrees));
}
static PyObject *
gpsclient_gpsd_units(PyObject *self, PyObject *args)
{
if (!PyArg_ParseTuple(args, ""))
return NULL;
return Py_BuildValue("i", (int)gpsd_units());
}
/*
* Miscellanea
*/
static PyObject *
gpsclient_wgs84_separation(PyObject *self, PyObject *args)
{
const double lat, lon;
double sep;
if (!PyArg_ParseTuple(args, "dd", &lat, &lon))
return NULL;
sep = wgs84_separation(lat, lon);
return Py_BuildValue("d", sep);
}
static PyObject *
gpsclient_maidenhead(PyObject *self, PyObject *args)
{
const double lat, lon;
char *gs;
if (!PyArg_ParseTuple(args, "dd", &lat, &lon))
return NULL;
gs = maidenhead(lat, lon);
return Py_BuildValue("s", gs);
}
/* List of functions defined in the module */
static PyMethodDef gpsclient_methods[] = {
{"wgs84_separation", gpsclient_wgs84_separation, METH_VARARGS,
PyDoc_STR("Return WGS84 geodetic separation in meters.")},
{"deg_to_str", gpsclient_deg_to_str, METH_VARARGS,
PyDoc_STR("String-format a latitude/longitude.")},
{"gpsd_units", gpsclient_gpsd_units, METH_VARARGS,
PyDoc_STR("Deduce a set of units from locale and environment.")},
{"maidenhead", gpsclient_maidenhead, METH_VARARGS,
PyDoc_STR("Maidenhead grid-square locator from lat/lon.")},
{NULL, NULL} /* sentinel */
};
PyDoc_STRVAR(module_doc,
"Python wrapper for selected libgps library routines.\n\
");
PyMODINIT_FUNC
initclienthelpers(void)
{
PyObject *m;
m = Py_InitModule3("gps.clienthelpers", gpsclient_methods, module_doc);
PyModule_AddIntConstant(m, "deg_dd", deg_dd);
PyModule_AddIntConstant(m, "deg_ddmm", deg_ddmm);
PyModule_AddIntConstant(m, "deg_ddmmss", deg_ddmmss);
PyModule_AddIntConstant(m, "unspecified", unspecified);
PyModule_AddIntConstant(m, "imperial", imperial);
PyModule_AddIntConstant(m, "nautical", nautical);
PyModule_AddIntConstant(m, "metric", metric);
}
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