214 lines
8.1 KiB
C
214 lines
8.1 KiB
C
/*------------------------------------------------------------------------------
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* convkml.c : google earth kml converter
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*
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* Copyright (C) 2007-2017 by T.TAKASU, All rights reserved.
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*
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* references :
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* [1] Open Geospatial Consortium Inc., OGC 07-147r2, OGC(R) KML, 2008-04-14
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*
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* version : $Revision: 1.1 $ $Date: 2008/07/17 21:48:06 $
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* history : 2007/01/20 1.0 new
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* 2007/03/15 1.1 modify color sequence
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* 2007/04/03 1.2 add geodetic height option
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* support input of NMEA GGA sentence
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* delete altitude info for track
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* add time stamp option
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* separate readsol.c file
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* 2009/01/19 1.3 fix bug on display mark with by-q-flag option
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* 2010/05/10 1.4 support api readsolt() change
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* 2010/08/14 1.5 fix bug on readsolt() (2.4.0_p3)
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* 2017/06/10 1.6 support wild-card in input file
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*-----------------------------------------------------------------------------*/
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#include "rtklib.h"
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/* constants -----------------------------------------------------------------*/
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#define SIZP 0.2 /* mark size of rover positions */
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#define SIZR 0.3 /* mark size of reference position */
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#define TINT 60.0 /* time label interval (sec) */
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static const char *head1="<?xml version=\"1.0\" encoding=\"UTF-8\"?>";
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static const char *head2="<kml xmlns=\"http://earth.google.com/kml/2.1\">";
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static const char *mark="http://maps.google.com/mapfiles/kml/pal2/icon18.png";
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/* output track --------------------------------------------------------------*/
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static void outtrack(FILE *f, const solbuf_t *solbuf, const char *color,
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int outalt, int outtime)
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{
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double pos[3];
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int i;
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fprintf(f,"<Placemark>\n");
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fprintf(f,"<name>Rover Track</name>\n");
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fprintf(f,"<Style>\n");
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fprintf(f,"<LineStyle>\n");
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fprintf(f,"<color>%s</color>\n",color);
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fprintf(f,"</LineStyle>\n");
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fprintf(f,"</Style>\n");
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fprintf(f,"<LineString>\n");
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if (outalt) fprintf(f,"<altitudeMode>absolute</altitudeMode>\n");
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fprintf(f,"<coordinates>\n");
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for (i=0;i<solbuf->n;i++) {
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ecef2pos(solbuf->data[i].rr,pos);
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if (outalt==0) pos[2]=0.0;
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else if (outalt==2) pos[2]-=geoidh(pos);
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fprintf(f,"%13.9f,%12.9f,%5.3f\n",pos[1]*R2D,pos[0]*R2D,pos[2]);
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}
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fprintf(f,"</coordinates>\n");
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fprintf(f,"</LineString>\n");
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fprintf(f,"</Placemark>\n");
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}
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/* output point --------------------------------------------------------------*/
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static void outpoint(FILE *fp, gtime_t time, const double *pos,
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const char *label, int style, int outalt, int outtime)
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{
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double ep[6],alt=0.0;
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char str[256]="";
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fprintf(fp,"<Placemark>\n");
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if (*label) fprintf(fp,"<name>%s</name>\n",label);
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fprintf(fp,"<styleUrl>#P%d</styleUrl>\n",style);
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if (outtime) {
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if (outtime==2) time=gpst2utc(time);
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else if (outtime==3) time=timeadd(gpst2utc(time),9*3600.0);
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time2epoch(time,ep);
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if (!*label&&fmod(ep[5]+0.005,TINT)<0.01) {
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sprintf(str,"%02.0f:%02.0f",ep[3],ep[4]);
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fprintf(fp,"<name>%s</name>\n",str);
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}
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sprintf(str,"%04.0f-%02.0f-%02.0fT%02.0f:%02.0f:%05.2fZ",
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ep[0],ep[1],ep[2],ep[3],ep[4],ep[5]);
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fprintf(fp,"<TimeStamp><when>%s</when></TimeStamp>\n",str);
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}
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fprintf(fp,"<Point>\n");
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if (outalt) {
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fprintf(fp,"<extrude>1</extrude>\n");
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fprintf(fp,"<altitudeMode>absolute</altitudeMode>\n");
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alt=pos[2]-(outalt==2?geoidh(pos):0.0);
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}
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fprintf(fp,"<coordinates>%13.9f,%12.9f,%5.3f</coordinates>\n",pos[1]*R2D,
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pos[0]*R2D,alt);
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fprintf(fp,"</Point>\n");
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fprintf(fp,"</Placemark>\n");
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}
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/* save kml file -------------------------------------------------------------*/
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static int savekml(const char *file, const solbuf_t *solbuf, int tcolor,
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int pcolor, int outalt, int outtime)
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{
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FILE *fp;
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double pos[3];
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int i,qcolor[]={0,1,2,5,4,3,0};
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char *color[]={
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"ffffffff","ff008800","ff00aaff","ff0000ff","ff00ffff","ffff00ff"
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};
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if (!(fp=fopen(file,"w"))) {
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fprintf(stderr,"file open error : %s\n",file);
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return 0;
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}
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fprintf(fp,"%s\n%s\n",head1,head2);
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fprintf(fp,"<Document>\n");
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for (i=0;i<6;i++) {
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fprintf(fp,"<Style id=\"P%d\">\n",i);
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fprintf(fp," <IconStyle>\n");
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fprintf(fp," <color>%s</color>\n",color[i]);
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fprintf(fp," <scale>%.1f</scale>\n",i==0?SIZR:SIZP);
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fprintf(fp," <Icon><href>%s</href></Icon>\n",mark);
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fprintf(fp," </IconStyle>\n");
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fprintf(fp,"</Style>\n");
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}
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if (tcolor>0) {
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outtrack(fp,solbuf,color[tcolor-1],outalt,outtime);
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}
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if (pcolor>0) {
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fprintf(fp,"<Folder>\n");
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fprintf(fp," <name>Rover Position</name>\n");
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for (i=0;i<solbuf->n;i++) {
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ecef2pos(solbuf->data[i].rr,pos);
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outpoint(fp,solbuf->data[i].time,pos,"",
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pcolor==5?qcolor[solbuf->data[i].stat]:pcolor-1,outalt,outtime);
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}
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fprintf(fp,"</Folder>\n");
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}
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if (norm(solbuf->rb,3)>0.0) {
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ecef2pos(solbuf->rb,pos);
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outpoint(fp,solbuf->data[0].time,pos,"Reference Position",0,outalt,0);
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}
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fprintf(fp,"</Document>\n");
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fprintf(fp,"</kml>\n");
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fclose(fp);
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return 1;
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}
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/* convert to google earth kml file --------------------------------------------
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* convert solutions to google earth kml file
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* args : char *infile I input solutions file (wild-card (*) is expanded)
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* char *outfile I output google earth kml file ("":<infile>.kml)
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* gtime_t ts,te I start/end time (gpst)
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* int tint I time interval (s) (0.0:all)
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* int qflg I quality flag (0:all)
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* double *offset I add offset {east,north,up} (m)
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* int tcolor I track color
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* (0:none,1:white,2:green,3:orange,4:red,5:yellow)
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* int pcolor I point color
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* (0:none,1:white,2:green,3:orange,4:red,5:by qflag)
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* int outalt I output altitude (0:off,1:elipsoidal,2:geodetic)
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* int outtime I output time (0:off,1:gpst,2:utc,3:jst)
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* return : status (0:ok,-1:file read,-2:file format,-3:no data,-4:file write)
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* notes : see ref [1] for google earth kml file format
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*-----------------------------------------------------------------------------*/
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extern int convkml(const char *infile, const char *outfile, gtime_t ts,
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gtime_t te, double tint, int qflg, double *offset,
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int tcolor, int pcolor, int outalt, int outtime)
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{
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solbuf_t solbuf={0};
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double rr[3]={0},pos[3],dr[3];
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int i,j,nfile,stat;
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char *p,file[1024],*files[MAXEXFILE]={0};
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trace(3,"convkml : infile=%s outfile=%s\n",infile,outfile);
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/* expand wild-card of infile */
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for (i=0;i<MAXEXFILE;i++) {
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if (!(files[i]=(char *)malloc(1024))) {
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for (i--;i>=0;i--) free(files[i]);
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return -4;
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}
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}
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if ((nfile=expath(infile,files,MAXEXFILE))<=0) {
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for (i=0;i<MAXEXFILE;i++) free(files[i]);
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return -3;
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}
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if (!*outfile) {
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if ((p=strrchr(infile,'.'))) {
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strncpy(file,infile,p-infile);
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strcpy(file+(p-infile),".kml");
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}
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else sprintf(file,"%s.kml",infile);
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}
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else strcpy(file,outfile);
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/* read solution file */
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stat=readsolt(files,nfile,ts,te,tint,qflg,&solbuf);
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for (i=0;i<MAXEXFILE;i++) free(files[i]);
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if (!stat) {
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return -1;
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}
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/* mean position */
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for (i=0;i<3;i++) {
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for (j=0;j<solbuf.n;j++) rr[i]+=solbuf.data[j].rr[i];
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rr[i]/=solbuf.n;
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}
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/* add offset */
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ecef2pos(rr,pos);
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enu2ecef(pos,offset,dr);
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for (i=0;i<solbuf.n;i++) {
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for (j=0;j<3;j++) solbuf.data[i].rr[j]+=dr[j];
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}
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if (norm(solbuf.rb,3)>0.0) {
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for (i=0;i<3;i++) solbuf.rb[i]+=dr[i];
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}
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/* save kml file */
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return savekml(file,&solbuf,tcolor,pcolor,outalt,outtime)?0:-4;
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}
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