Messwerte mit GPS Daten verknüpfen und Visualisieren. Wie???

**holzi** · 18.07.2011, 05:53

Guten morgen,
mit txt-Dateien kannst du mit GoogleEarth nichts werden. Solch eine TXT-Datei musst du ins KML-Format konvertieren. Erst dann versteht sie Google. Mittels der GoogleEarth-AP und einem Java-Programm kannst du dann Polygone zeichnen für deine Flächen. Unter der GoogleEarth-Hilfe findest du dafür genug Beispiele. Für die Konvertierung ins KML-Format frag mal Dr.Google.

Tschüss Peter

**wkrug** · 29.04.2012, 00:08

Ok, hab nach langer Zeit eine Lösung gefunden.
Eventuell gibt es da was, das noch optimaler ist.
Meine Dateien sehen jetzt folgendermassen aus:

Code:

<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
<Document>
<name>ReipData</name>
<description>Reip Datas from specified Crop. Note that the tessellate tag is by default
set to 0. If you want to create tessellated lines, they must be authored
(or edited) directly in KML.</description>
<Style id="705_26">
<LineStyle>
<color>ff2500DB</color>
<width>2</width>
</LineStyle>
</Style>
<Placemark>
<name>705_26</name>
<description>Reip 705,9 Deck 26%</description>
<styleUrl>#705_26</styleUrl>
<LineString>
<extrude>1</extrude>
<tessellate>1</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
11.560925,49.023080,369
11.560925,49.023080,369
</coordinates>
</LineString>
</Placemark><Style id="706_26">
<LineStyle>
<color>ff2800D8</color>
<width>2</width>
</LineStyle>
</Style>
<Placemark>
<name>706_26</name>
<description>Reip 706,4 Deck 26%</description>
<styleUrl>#706_26</styleUrl>
<LineString>
<extrude>1</extrude>
<tessellate>1</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
11.560925,49.023080,369
11.560928,49.023078,369
</coordinates>
</LineString>
</Placemark>
></Document>
</kml>

Damit ist es nun möglich 2 Messwerte mit Farbe und Breite einer Linie darzustellen.
Ein Codeschnipsel zu Erzeugen des Strings hab ich mal hier:

Code:

void handlelog(void)
{
unsigned char low=0,high=0;
unsigned int buffer=0,ui_i=0;
unsigned char text[400];
unsigned char sametext[14],reiptext[14];
switch (logstate)
    {
    case logoff:
    if(LOGSW==0)
        {
        logstate=logstart; 
        }
    break;
    
    case logstart:
    logstate=writeheader1;
    logtimer=6;
    break;
    
    case writeheader1:
    strcpyf(text,header1);
    for (ui_i=0;ui_i<strlen(text);ui_i++)
        {
        putchar(text[ui_i]);
        }
    logstate=writeheader2;
    break;
    
    case writeheader2:
    strcpyf(text,header2);
    for (ui_i=0;ui_i<strlen(text);ui_i++)
        {
        putchar(text[ui_i]);
        }
    logstate=writeheader3;
    break;
    
    case writeheader3:
    strcpyf(text,header3);
    for (ui_i=0;ui_i<strlen(text);ui_i++)
        {
        putchar(text[ui_i]);
        }
    if(LOGSW==0)
        {
        oldlatx=latx;
        oldlath=lath;
        oldlatl=latl;
        oldlongx=longx;
        oldlongh=longh;
        oldlongl=longl;
        logstate=writedata;
        }
    else
        {
        logstate=writecloser;
        }
    break;
    
    case writedata:
    /* Hier müssen noch die REIP Daten für das File generiert
    und an den SD CARD Reader übergeben werden
    */
    /*
    <Style id="720_50">
      <LineStyle>
        <color>ff800080</color>
        <width>5</width>
      </LineStyle>
    </Style>
    <Placemark>
      <name>720-50</name>
      <description>Reip 720, Deck 50</description>
    <styleUrl>#720_50</styleUrl>
      <LineString>
        <extrude>1</extrude>
        <tessellate>1</tessellate>
        <altitudeMode>clampToGround</altitudeMode>
        <coordinates>
        11.561936,49.023278,2357
          11.561935,49.023277,2357
          11.561930,49.023277,2357
          11.561927,49.023281,2357
        </coordinates>
    </LineString>
    </Placemark>
    */
    strcpyf(text,"<Style id=\"");
    high=reip/10;
    itoa(high,sametext),
    strcpyf(reiptext,"7");
    if(high<10){strcatf(reiptext,"0");}
    strcat(reiptext,sametext);
    strcatf(reiptext,"_");
    itoa(deck,sametext);
    strcat(reiptext,sametext);
    strcat(text,reiptext);
    strcatf(text,"\">\r\n");
    strcatf(text,"<LineStyle>\r\n<color>ff");
    buffer=reip*100;
    buffer/=157;
    high=buffer>>4;
    low=buffer&0x0F;
    if(high<10)
        {
        high+=0x30;
        }
    else
        {
        high+=0x37;
        }
    if(low<10)
        {
        low+=0x30;
        }
    else
        {
        low+=0x37;
        }
    sametext[0]=high;
    sametext[1]=low;
    sametext[2]='0';
    sametext[3]='0';
    buffer=256-buffer;
    high=buffer>>4;
    low=buffer&0x0F;
    if(high<10)
        {
        high+=0x30;
        }
    else
        {
        high+=0x37;
        }
    if(low<10)
        {
        low+=0x30;
        }
    else
        {
        low+=0x37;
        }
    sametext[4]=high;
    sametext[5]=low;
    sametext[8]=0;
    strcat(text,sametext);
    strcatf(text,"</color>\r\n<width>");
    low=deck/10;
    if(low<1){low=1;}
    itoa(low,sametext);
    strcat(text,sametext);
    strcatf(text,"</width>\r\n</LineStyle>\r\n</Style>\r\n<Placemark>\r\n<name>");
    strcat(text,reiptext);
    strcatf(text,"</name>\r\n<description>Reip 7"); //720, Deck 50</description>"
    buffer=reip/10;
    itoa(buffer,sametext);
    if(buffer<10){strcatf(text,"0");}
    strcat(text,sametext);
    strcatf(text,",");
    buffer=reip%10;
    itoa(buffer,sametext);
    strcat(text,sametext);
    strcatf(text," Deck ");
    itoa(deck,sametext);
    strcat(text,sametext);
    strcatf(text,"%</description>\r\n<styleUrl>#");
    strcat(text,reiptext);
    strcatf(text,"</styleUrl>\r\n<LineString>\r\n<extrude>1</extrude>\r\n<tessellate>1</tessellate>\r\n<altitudeMode>clampToGround</altitudeMode>\r\n<coordinates>\r\n");
    if(oldlongx=='W'){strcatf(text,"-");}
    itoa(oldlongh,sametext);
    strcat(text,sametext);
    strcatf(text,".");
    ltoa(oldlongl,sametext);
    if(oldlongl<100000){strcatf(text,"0");}
    if(oldlongl<10000){strcatf(text,"0");}
    if(oldlongl<1000){strcatf(text,"0");}
    if(oldlongl<100){strcatf(text,"0");}
    if(oldlongl<10){strcatf(text,"0");}
    strcat(text,sametext);
    strcatf(text,",");
    if(oldlatx=='S'){strcatf(text,"-");}
    itoa(oldlath,sametext);
    strcat(text,sametext);
    strcatf(text,".");
    ltoa(oldlatl,sametext);
    if(oldlatl<100000){strcatf(text,"0");}
    if(oldlatl<10000){strcatf(text,"0");}
    if(oldlatl<1000){strcatf(text,"0");}
    if(oldlatl<100){strcatf(text,"0");}
    if(oldlatl<10){strcatf(text,"0");}
    strcat(text,sametext);
    strcatf(text,",");
    buffer=height/10;
    itoa(buffer,sametext);
    strcat(text,sametext);
    strcatf(text,"\r\n");
    if(longx=='W'){strcatf(text,"-");}
    itoa(longh,sametext);
    strcat(text,sametext);
    strcatf(text,".");
    ltoa(longl,sametext);
    if(longl<100000){strcatf(text,"0");}
    if(longl<10000){strcatf(text,"0");}
    if(longl<1000){strcatf(text,"0");}
    if(longl<100){strcatf(text,"0");}
    if(longl<10){strcatf(text,"0");}
    strcat(text,sametext);
    strcatf(text,",");
    if(latx=='S'){strcatf(text,"-");}
    itoa(lath,sametext);
    strcat(text,sametext);
    strcatf(text,".");
    ltoa(latl,sametext);
    if(latl<100000){strcatf(text,"0");}
    if(latl<10000){strcatf(text,"0");}
    if(latl<1000){strcatf(text,"0");}
    if(latl<100){strcatf(text,"0");}
    if(latl<10){strcatf(text,"0");}
    strcat(text,sametext);
    strcatf(text,",");
    buffer=height/10;
    itoa(buffer,sametext);
    strcat(text,sametext);
    strcatf(text,"\r\n");
    strcatf(text,"</coordinates>\r\n</LineString>\r\n</Placemark>");
    for(ui_i=0;ui_i<strlen(text);ui_i++)
        {
        putchar(text[ui_i]);
        }
    //Prepare for next data record
    oldlatx=latx;
    oldlath=lath;
    oldlatl=latl;
    oldlongx=longx;
    oldlongh=longh;
    oldlongl=longl;
    if(LOGSW!=0)
        {
        logstate=writecloser;
        }
    break;
    
    case writecloser:
    strcpyf(text,closer);
    for (ui_i=0;ui_i<strlen(text);ui_i++)
        {
        putchar(text[ui_i]);
        }
    logstate=fileclosed;
    logtimer=32;
    break;
    }
}

Ist sicher noch nicht optimal das Ganze, aber ein funktionierender Anfang.