New

git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@1242 4e78687f-474d-0410-85f9-8d5e500ac6b2

2 files changed, 213 insertions, 0 deletions

diff --git a/src/jniproj.c b/src/jniproj.c
new file mode 100644
index 00000000..f1df9bf7
--- /dev/null
+++ b/src/jniproj.c
@@ -0,0 +1,176 @@
+/*!
+* \file jniproj.c
+*
+* \brief
+* functions used by the java/jni wrappers of jproj4
+*
+*
+* $Id$
+*
+* \author Antonello Andrea
+* \date   Wed Oct 20 23:10:24 CEST 2004
+*/
+#include "proj_config.h"
+
+#ifdef JNI_ENABLED
+
+#include "projects.h"
+#include "org_proj4_Projections.h"
+#include <jni.h>
+
+#define arraysize 300
+
+/*!
+ * \brief
+ * executes reprojection 
+ * 
+ * JNI informations:
+ * Class:     org_proj4_Projections
+ * Method:    transform
+ * Signature: ([D[D[DLjava/lang/String;Ljava/lang/String;JI)V
+ * 
+ *
+ * \param env - parameter used by jni (see JNI specification)
+ * \param parent - parameter used by jni (see JNI specification)
+ * \param firstcoord - array of x coordinates
+ * \param secondcoord - array of y coordinates
+ * \param values - array of z coordinates
+ * \param src - definition of the source projection
+ * \param dest - definition of the destination projection
+ * \param pcount
+ * \param poffset
+*/
+JNIEXPORT void JNICALL Java_org_proj4_Projections_transform
+  (JNIEnv * env, jobject parent, jdoubleArray firstcoord, jdoubleArray secondcoord, jdoubleArray values, jstring src, jstring dest, jlong pcount, jint poffset)
+{
+	int i;
+	projPJ src_pj, dst_pj;
+	char * srcproj_def = (char *) (*env)->GetStringUTFChars (env, src, 0); 
+	char * destproj_def = (char *) (*env)->GetStringUTFChars (env, dest, 0);
+
+	if (!(src_pj = pj_init_plus(srcproj_def)))
+		exit(1);
+	if (!(dst_pj = pj_init_plus(destproj_def)))
+		exit(1);
+
+	double *xcoord = (* env)-> GetDoubleArrayElements(env, firstcoord, NULL); 
+	double *ycoord = (* env) -> GetDoubleArrayElements(env, secondcoord, NULL); 
+	double *zcoord = (* env) -> GetDoubleArrayElements(env, values, NULL); 
+
+	jint sizeofdata = (*env)->GetArrayLength(env, firstcoord);
+	for(i = 0;i<sizeofdata;i++)
+	{
+		pj_transform( src_pj, dst_pj, pcount,poffset, xcoord, ycoord, zcoord);
+		xcoord++;
+		ycoord++;
+		zcoord++;
+	}
+	xcoord = xcoord - sizeofdata;
+	ycoord = ycoord - sizeofdata;
+	zcoord = zcoord - sizeofdata;
+
+	(* env)->ReleaseDoubleArrayElements(env,firstcoord,(jdouble *) xcoord,JNI_COMMIT);
+	(* env)->ReleaseDoubleArrayElements(env,secondcoord,(jdouble *) ycoord,JNI_COMMIT);
+	(* env)->ReleaseDoubleArrayElements(env,values,(jdouble *) zcoord,JNI_COMMIT);
+
+	pj_free( src_pj );
+	pj_free( dst_pj );
+}
+
+/*!
+ * \brief
+ * retrieves projection parameters
+ * 
+ * JNI informations:
+ * Class:     org_proj4_Projections
+ * Method:    getProjInfo
+ * Signature: (Ljava/lang/String;)Ljava/lang/String;
+ * 
+ *
+ * \param env - parameter used by jni (see JNI specification)
+ * \param parent - parameter used by jni (see JNI specification)
+ * \param projdefinition - definition of the projection
+*/
+JNIEXPORT jstring JNICALL Java_org_proj4_Projections_getProjInfo
+  (JNIEnv * env, jobject parent, jstring projdefinition)
+{
+	PJ *pj;
+	char * pjdesc;
+	char info[arraysize];
+	
+	char * proj_def = (char *) (*env)->GetStringUTFChars (env, projdefinition, 0);
+	
+	if (!(pj = pj_init_plus(proj_def)))
+		exit(1);
+	
+	// put together all the info of the projection and free the pointer to pjdesc
+	pjdesc = pj_get_def(pj, 0);
+	strcpy(info,pjdesc);
+	pj_dalloc(pjdesc);
+	
+	return (*env)->NewStringUTF(env,info); 
+}
+
+
+/*!
+ * \brief
+ * retrieves ellipsoid parameters
+ * 
+ * JNI informations:
+ * Class:     org_proj4_Projections
+ * Method:    getEllipsInfo
+ * Signature: (Ljava/lang/String;)Ljava/lang/String;
+ * 
+ *
+ * \param env - parameter used by jni (see JNI specification)
+ * \param parent - parameter used by jni (see JNI specification)
+ * \param projdefinition - definition of the projection
+*/
+JNIEXPORT jstring JNICALL Java_org_proj4_Projections_getEllipsInfo
+  (JNIEnv * env, jobject parent, jstring projdefinition)
+{
+	PJ *pj;
+	char * pjdesc;
+	char ellipseinfo[arraysize];
+	char temp[50];
+	
+	char * proj_def = (char *) (*env)->GetStringUTFChars (env, projdefinition, 0);
+	
+	if (!(pj = pj_init_plus(proj_def)))
+		exit(1);
+	
+	// put together all the info of the ellipsoid 
+/* 	sprintf(temp,"name: %s;", pj->descr); */
+	sprintf(temp,"name: not available;");
+	strcpy(ellipseinfo,temp);
+	sprintf(temp,"a: %lf;", pj->a);
+	strcat(ellipseinfo,temp);
+	sprintf(temp,"e: %lf;", pj->e);
+	strcat(ellipseinfo,temp);
+	sprintf(temp,"es: %lf;", pj->es);
+	strcat(ellipseinfo,temp);
+	sprintf(temp,"ra: %lf;", pj->ra);
+	strcat(ellipseinfo,temp);
+	sprintf(temp,"one_es: %lf;", pj->one_es);
+	strcat(ellipseinfo,temp);
+	sprintf(temp,"rone_es: %lf;", pj->rone_es);
+	strcat(ellipseinfo,temp);
+	sprintf(temp,"lam0: %lf;", pj->lam0);
+	strcat(ellipseinfo,temp);
+	sprintf(temp,"phi0: %lf;", pj->phi0);
+	strcat(ellipseinfo,temp);
+	sprintf(temp,"x0: %lf;", pj->x0);
+	strcat(ellipseinfo,temp);
+	sprintf(temp,"y0: %lf;", pj->y0);
+	strcat(ellipseinfo,temp);
+	sprintf(temp,"k0: %lf;", pj->k0);
+	strcat(ellipseinfo,temp);
+	sprintf(temp,"to_meter: %lf;", pj->to_meter);
+	strcat(ellipseinfo,temp);
+	sprintf(temp,"fr_meter: %lf;", pj->fr_meter);
+	strcat(ellipseinfo,temp);
+
+	return (*env)->NewStringUTF(env,ellipseinfo); 
+}
+
+#endif
diff --git a/src/org_proj4_Projections.h b/src/org_proj4_Projections.h
new file mode 100644
index 00000000..3841e057
--- /dev/null
+++ b/src/org_proj4_Projections.h
@@ -0,0 +1,37 @@
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include <jni.h>
+/* Header for class org_proj4_Projections */
+
+#ifndef _Included_org_proj4_Projections
+#define _Included_org_proj4_Projections
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class:     org_proj4_Projections
+ * Method:    getProjInfo
+ * Signature: (Ljava/lang/String;)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_proj4_Projections_getProjInfo
+  (JNIEnv *, jobject, jstring);
+
+/*
+ * Class:     org_proj4_Projections
+ * Method:    getEllipsInfo
+ * Signature: (Ljava/lang/String;)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_proj4_Projections_getEllipsInfo
+  (JNIEnv *, jobject, jstring);
+
+/*
+ * Class:     org_proj4_Projections
+ * Method:    transform
+ * Signature: ([D[D[DLjava/lang/String;Ljava/lang/String;JI)V
+ */
+JNIEXPORT void JNICALL Java_org_proj4_Projections_transform
+  (JNIEnv *, jobject, jdoubleArray, jdoubleArray, jdoubleArray, jstring, jstring, jlong, jint);
+
+#ifdef __cplusplus
+}
+#endif
+#endif