A friend of mine has embedded a google earth plugin into a C# user control. All works fine but when you close the window we recieve and "Unspecified Error" with the option to continue running the scripts or not. From our tracking it down it appears this is being cause by a script that google is dropping onto the page. Any ideas?
A:
We have now tried this in both IE and FF. Works fine. Any ideas why the error only comes up on close? can we somehow disable it? here is our code.
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<html>
<head>
<script src="http://www.google.com/jsapi?key=ABQIAAAAzghEPRV_D0MDzTELJ4nkXBT2AlVLQD8Rz4_aVbiXesLoyhRIMBRo399nnxv9aY-fqnkVGgTgR-pTsg">
</script>
<script>
google.load("earth", "1");
var ge = null;
var placemark;
function init(){
google.earth.createInstance("map3d", initCallback, failureCallback);
}
function initCallback(object){
ge = object;
ge.getWindow().setVisibility(true);
ge.getNavigationControl().setVisibility(ge.VISIBILITY_SHOW);
ge.getLayerRoot().enableLayerById(ge.LAYER_TERRAIN, false);
placemark = ge.createPlacemark('');
placemark.setName("Current Position");
// Create style map for placemark
var normal = ge.createIcon('');
normal.setHref('http://maps.google.com/mapfiles/kml/paddle/red-circle.png');
var iconNormal = ge.createStyle('');
iconNormal.getIconStyle().setIcon(normal);
var highlight = ge.createIcon('');
highlight.setHref('http://maps.google.com/mapfiles/kml/paddle/red-circle.png');
var iconHighlight = ge.createStyle('');
iconHighlight.getIconStyle().setIcon(highlight);
var styleMap = ge.createStyleMap('');
styleMap.setNormalStyle(iconNormal);
styleMap.setHighlightStyle(iconHighlight);
placemark.setStyleSelector(styleMap);
var options = ge.getOptions();
options.setStatusBarVisibility(true);
options.setScaleLegendVisibility(true);
}
function failureCallback(object){
// Gracefully handle failure.
alert("Error");
}
function changeViewAngle(angle){
var lookAt = ge.getView().copyAsLookAt(ge.ALTITUDE_ABSOLUTE);
lookAt.setTilt(angle);
ge.getView().setAbstractView(lookAt);
}
function ShowMarker(){
ge.getFeatures().appendChild(placemark);
}
function MoveMarker(lon, lat){
// Create point
var la = ge.getView().copyAsLookAt(ge.ALTITUDE_RELATIVE_TO_GROUND);
var point = ge.createPoint('');
point.setLatitude(lat);
point.setLongitude(lon);
placemark.setGeometry(point);
}
function HideMarker(){
ge.getFeatures().removeChild(placemark);
}
function SetPosition(lon, lat, heading){
var lookAt = ge.getView().copyAsLookAt(ge.ALTITUDE_RELATIVE_TO_GROUND);
lookAt.setLatitude(lat);
lookAt.setLongitude(lon);
lookAt.setHeading(heading);
ge.getView().setAbstractView(lookAt);
}
function SetAltitude(alt){
var lookAt = ge.getView().copyAsLookAt(ge.ALTITUDE_RELATIVE_TO_GROUND);
lookAt.set(lookAt.getLatitude(), lookAt.getLongitude(), 0, ge.ALTITUDE_RELATIVE_TO_GROUND, 0, lookAt.getTilt(), alt);
ge.getView().setAbstractView(lookAt);
}
function ResizeMap(w, h){
var map = document.getElementById('map3d_container');
map.style.height = h;
map.style.width = w;
}
function AddKML(kml){
var parseKML = ge.parseKml(kml);
ge.getFeatures().appendChild(parseKML);
return ge.getFeatures().getLastChild().getName();
}
function RemoveKML(kmlName){
if (ge.getFeatures().hasChildNodes()) {
var nodes = ge.getFeatures().getChildNodes();
for (var i = 0; i < nodes.getLength(); i++) {
var child = nodes.item(i);
if (child.getName() == kmlName) {
ge.getFeatures().removeChild(child);
}
}
}
}
function OptionsChanged(nav, status, scale, grid, map, terrain, road, border, building){
var options = ge.getOptions();
var form = document.options;
if (nav) {
ge.getNavigationControl().setVisibility(ge.VISIBILITY_SHOW);
}
else {
ge.getNavigationControl().setVisibility(ge.VISIBILITY_HIDE);
}
options.setStatusBarVisibility(status);
options.setScaleLegendVisibility(scale);
options.setGridVisibility(grid);
options.setOverviewMapVisibility(map);
ge.getLayerRoot().enableLayerById(ge.LAYER_TERRAIN, terrain);
ge.getLayerRoot().enableLayerById(ge.LAYER_ROADS, road);
ge.getLayerRoot().enableLayerById(ge.LAYER_BORDERS, border);
ge.getLayerRoot().enableLayerById(ge.LAYER_BUILDINGS, building);
}
</script>
</head>
<body onload='init()'>
<center>
<div id='map3d_container' style='border: 1px solid silver; height: 510px; width: 767px;'>
<DIV id=map3d style="HEIGHT: 100%">
</DIV>
</div>
</center>
</body>
</html>
Adam Lerman
2008-10-08 14:41:58
A:
@Micah
There are no errors when running inside a regulare browser, but when embedding in a C# app in a user control (i think...i dont know c# at all, this is what I was told) it throws an error when the c# app is closed.
Adam Lerman
2008-10-09 14:03:07
A:
try this
yourWebBrowser1.Document.Write(String.Empty);
when you close the app.
my question: can you show me how to use AddKML(kml) in C# app? by string or file path, I tried both. I am looking for a way to parse kml files...
I dont know, this was a friends code. Sorry!
Adam Lerman
2008-12-16 00:03:42
+2
A:
Hi,
Here is an example, by me, of c#/Google Earth API integration that covers the problem you are having (see the comments) http://fraserchapman.blogspot.com/2008/08/google-earth-plug-in-and-c.html
Also, here is another of my projects that uses COM Google Earth Plugin Type Library (plugin_ax.dll) converted into the equivalent definitions in a common language run time assembly. It may be of some use. http://fraserchapman.blogspot.com/2008/12/google-earth-plugin-control-library.html
Regards,
Fraser.