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GPS Data Precision Errors

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JsonRideFile saved with 6 and not 11 digit precision
losing a lot of precision when saving.

Additionally, the Google Map used a similar precision
and this caused jaggies on the map.
This commit is contained in:
Mark Liversedge
2011-07-24 14:47:03 +01:00
parent 9c0c2581f5
commit fb37f9877c
2 changed files with 10 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
src/GoogleMapControl.cpp
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@@ -305,7 +305,7 @@ void GoogleMapControl::createHtml()
" webBridge.drawOverlays();\n"
"}\n"
"</script>\n").arg(minLat,0,'g',6).arg(minLon,0,'g',6).arg(maxLat,0,'g',6).arg(maxLon,0,'g',6);
"</script>\n").arg(minLat,0,'g',11).arg(minLon,0,'g',11).arg(maxLat,0,'g',11).arg(maxLon,0,'g',11);
// the main page is rather trivial
currentPage += QString("</head>\n"
@@ -343,7 +343,7 @@ GoogleMapControl::drawShadedRoute()
" path = polyline.getPath();\n");
} else {
if (rfp->lat || rfp->lon)
code += QString("path.push(new google.maps.LatLng(%1,%2));\n").arg(rfp->lat,0,'g',6).arg(rfp->lon,0,'g',6);
code += QString("path.push(new google.maps.LatLng(%1,%2));\n").arg(rfp->lat,0,'g',11).arg(rfp->lon,0,'g',11);
}
// running total of time
@@ -433,20 +433,20 @@ GoogleMapControl::createMarkers()
code = QString("{ var latlng = new google.maps.LatLng(%1,%2);"
"var image = new google.maps.MarkerImage('qrc:images/maps/loop.png');"
"var marker = new google.maps.Marker({ icon: image, animation: google.maps.Animation.DROP, position: latlng });"
"marker.setMap(map); }").arg(points[0]->lat,0,'g',6).arg(points[0]->lon,0,'g',6);
"marker.setMap(map); }").arg(points[0]->lat,0,'g',11).arg(points[0]->lon,0,'g',11);
view->page()->mainFrame()->evaluateJavaScript(code);
} else {
// start / finish markers
code = QString("{ var latlng = new google.maps.LatLng(%1,%2);"
"var image = new google.maps.MarkerImage('qrc:images/maps/cycling.png');"
"var marker = new google.maps.Marker({ icon: image, animation: google.maps.Animation.DROP, position: latlng });"
"marker.setMap(map); }").arg(points[0]->lat,0,'g',6).arg(points[0]->lon,0,'g',6);
"marker.setMap(map); }").arg(points[0]->lat,0,'g',11).arg(points[0]->lon,0,'g',11);
view->page()->mainFrame()->evaluateJavaScript(code);
code = QString("{ var latlng = new google.maps.LatLng(%1,%2);"
"var image = new google.maps.MarkerImage('qrc:images/maps/finish.png');"
"var marker = new google.maps.Marker({ icon: image, animation: google.maps.Animation.DROP, position: latlng });"
"marker.setMap(map); }").arg(points[points.count()-1]->lat,0,'g',6).arg(points[points.count()-1]->lon,0,'g',6);
"marker.setMap(map); }").arg(points[points.count()-1]->lat,0,'g',11).arg(points[points.count()-1]->lon,0,'g',11);
view->page()->mainFrame()->evaluateJavaScript(code);
}
@@ -492,7 +492,7 @@ GoogleMapControl::createMarkers()
"var image = new google.maps.MarkerImage('qrc:images/maps/cycling_feed.png');"
"var marker = new google.maps.Marker({ icon: image, animation: google.maps.Animation.DROP, position: latlng });"
"marker.setMap(map);"
"}").arg(rfp->lat,0,'g',6).arg(rfp->lon,0,'g',6);
"}").arg(rfp->lat,0,'g',11).arg(rfp->lon,0,'g',11);
view->page()->mainFrame()->evaluateJavaScript(code);
stoptime=0;
}
@@ -518,8 +518,8 @@ GoogleMapControl::createMarkers()
" markerList.push(marker);" // keep track of those suckers
" google.maps.event.addListener(marker, 'click', function(event) { webBridge.toggleInterval(%4); });"
"}")
.arg(myRideItem->ride()->dataPoints()[offset]->lat,0,'g',6)
.arg(myRideItem->ride()->dataPoints()[offset]->lon,0,'g',6)
.arg(myRideItem->ride()->dataPoints()[offset]->lat,0,'g',11)
.arg(myRideItem->ride()->dataPoints()[offset]->lon,0,'g',11)
.arg(x.name)
.arg(interval);
view->page()->mainFrame()->evaluateJavaScript(code);