/// <summary>
/// Parses LineStrings
/// </summary>
/// <param name="inNode">The node containing LineStrings</param>
/// <param name="layer">The layer to add the resulting lines to</param>
/// <param name="KmlPath">The path to the KML file that is being loaded</param>
private void ParseLineStrings(XmlNode inNode, RIcons layer)
{
// Parse all Placemarks that have a name and LineString
XmlNodeList lineStrings = inNode.SelectNodes("Placemark[name and LineString]");
foreach (XmlNode node in lineStrings)
{
// Extract the name from this node
XmlNode nameNode = node.SelectSingleNode("name");
string name = nameNode.InnerText;
Style style = null;
// get StyleUrl
XmlNode styleUrlNode = node.SelectSingleNode("styleUrl");
if(styleUrlNode != null)
{
string styleUrlKey = styleUrlNode.InnerText.Trim();
if(styleUrlKey.StartsWith("#"))
styleUrlKey = styleUrlKey.Substring(1, styleUrlKey.Length - 1);
style = (Style)iconStyles[styleUrlKey];
}
else
{
XmlNode styleNode = node.SelectSingleNode("Style");
if(styleNode != null)
style = GetStyle( styleNode, new Style(), "");
}
if(style == null)
style = new Style();
if(style.LineStyle == null)
style.LineStyle = new LineStyle();
if(style.PolyStyle == null)
style.PolyStyle = new PolyStyle();
// See if this LineString has to be extruded to the ground
bool extrude = false;
XmlNode extrudeNode = node.SelectSingleNode("LineString/extrude");
if (extrudeNode != null)
extrude = Convert.ToBoolean(Convert.ToInt16(extrudeNode.InnerText));
//Parse Coordinates
XmlNode outerRingNode = node.SelectSingleNode("LineString/coordinates");
if(outerRingNode != null)
{
// Parse the list of line coordinates
Point3d[] points = ParseCoordinates(outerRingNode);
LineFeature line = new LineFeature(name, m_world, points, System.Drawing.Color.FromArgb(style.LineStyle.Color.Color));
XmlNode altitudeModeNode = node.SelectSingleNode("LineString/altitudeMode");
line.AltitudeMode = GetAltitudeMode(altitudeModeNode);
line.LineWidth = (float)style.LineStyle.Width.Value;
if (extrude)
{
line.Extrude = true;
if(style.PolyStyle.Color != null)
{
line.PolygonColor = System.Drawing.Color.FromArgb(style.PolyStyle.Color.Color);
}
}
XmlNode visibilityNode = node.SelectSingleNode("visibility");
if(visibilityNode != null)
line.IsOn = (visibilityNode.InnerText == "1" ? true : false);
layer.Add(line);
}
}
}
/// <summary>
/// Parses Multi Polygons
/// </summary>
/// <param name="inNode">The node containing Polygons</param>
/// <param name="layer">The layer to add the resulting Polygons to</param>
private void ParseMultiGeometry(XmlNode inNode, RIcons layer)
{
// Parse all Placemarks that have a name and Polygon
XmlNodeList placemarkNodes = inNode.SelectNodes("Placemark[name and MultiGeometry]");
Random rand = new Random((int)DateTime.Now.Ticks);
foreach(XmlNode placemarkNode in placemarkNodes)
{
XmlNode nameNode = placemarkNode.SelectSingleNode("name");
string name = nameNode.InnerText;
// change this to something that unifies the geometry into a single object instead of a user-accessible list
RIcons multiGeometryList = new RIcons(name);
Style style = null;
// get StyleUrl
XmlNode styleUrlNode = placemarkNode.SelectSingleNode("styleUrl");
if(styleUrlNode != null)
{
string styleUrlKey = styleUrlNode.InnerText.Trim();
if(styleUrlKey.StartsWith("#"))
styleUrlKey = styleUrlKey.Substring(1, styleUrlKey.Length - 1);
style = (Style)iconStyles[styleUrlKey];
}
else
{
XmlNode styleNode = placemarkNode.SelectSingleNode("Style");
if(styleNode != null)
style = GetStyle( styleNode, new Style(), "");
}
if(style == null)
style = new Style();
if(style.LineStyle == null)
style.LineStyle = new LineStyle();
if(style.PolyStyle == null)
style.PolyStyle = new PolyStyle();
XmlNodeList lineStringNodes = placemarkNode.SelectNodes("MultiGeometry/LineString");
foreach(XmlNode lineStringNode in lineStringNodes)
{
bool extrude = false;
XmlNode extrudeNode = lineStringNode.SelectSingleNode("extrude");
if (extrudeNode != null)
extrude = Convert.ToBoolean(Convert.ToInt16(extrudeNode.InnerText));
XmlNode coordinateNode = lineStringNode.SelectSingleNode("coordinates");
Point3d[] points = ParseCoordinates(coordinateNode);
XmlNode altitudeModeNode = lineStringNode.SelectSingleNode("altitudeMode");
AltitudeMode altitudeMode = GetAltitudeMode(altitudeModeNode);
if(points != null && points.Length > 0)
{
LineFeature line = new LineFeature(
name,
m_world,
points,
System.Drawing.Color.FromArgb(style.LineStyle.Color.Color)
);
line.AltitudeMode = altitudeMode;
if(style.PolyStyle.Color != null)
line.PolygonColor = System.Drawing.Color.FromArgb(style.PolyStyle.Color.Color);
line.LineWidth = (float)style.LineStyle.Width.Value;
line.Extrude = extrude;
multiGeometryList.Add(line);
}
}
XmlNodeList polygonNodes = placemarkNode.SelectNodes("MultiGeometry/Polygon");
foreach(XmlNode polygonNode in polygonNodes)
{
bool extrude = false;
XmlNode extrudeNode = polygonNode.SelectSingleNode("extrude");
if (extrudeNode != null)
extrude = Convert.ToBoolean(Convert.ToInt16(extrudeNode.InnerText));
XmlNode altitudeModeNode = polygonNode.SelectSingleNode("altitudeMode");
AltitudeMode altitudeMode = GetAltitudeMode(altitudeModeNode);
LinearRing outerRing = null;
LinearRing[] innerRings = null;
// Parse Outer Ring
XmlNode outerRingNode = polygonNode.SelectSingleNode("outerBoundaryIs/LinearRing/coordinates");
if (outerRingNode != null)
{
Point3d[] points = ParseCoordinates(outerRingNode);
outerRing = new LinearRing();
outerRing.Points = points;
}
// Parse Inner Ring
XmlNodeList innerRingNodes = polygonNode.SelectNodes("innerBoundaryIs");
if (innerRingNodes != null)
{
innerRings = new LinearRing[innerRingNodes.Count];
for(int i = 0; i < innerRingNodes.Count; i++)
{
Point3d[] points = ParseCoordinates(innerRingNodes[i]);
innerRings[i] = new LinearRing();
innerRings[i].Points = points;
}
}
if(outerRing != null)
{
PolygonFeature polygonFeature = new PolygonFeature(
name,
m_world,
outerRing,
innerRings,
(style.PolyStyle.Color != null ? System.Drawing.Color.FromArgb(style.PolyStyle.Color.Color) : System.Drawing.Color.Yellow)
);
polygonFeature.Extrude = extrude;
polygonFeature.AltitudeMode = altitudeMode;
polygonFeature.Outline = style.PolyStyle.Outline;
if(style.LineStyle.Color != null)
polygonFeature.OutlineColor = System.Drawing.Color.FromArgb(style.LineStyle.Color.Color);
multiGeometryList.Add(polygonFeature);
}
}
XmlNode visibilityNode = placemarkNode.SelectSingleNode("visibility");
if(visibilityNode != null)
multiGeometryList.IsOn = (visibilityNode.InnerText == "1" ? true : false);
layer.Add(multiGeometryList);
}
}
/// <summary>
/// Parses Placemarks
/// </summary>
/// <param name="inNode">The node containing Placemarks</param>
/// <param name="layer">The layer to add the resulting icons or folders to</param>
/// <param name="KmlPath">The path to the KML file that is being loaded</param>
private void ParsePlacemarks(XmlNode inNode, RIcons layer, string KmlPath)
{
foreach (WorldWind.Renderable.RenderableObject ro in layer.ChildObjects)
{
RIcon ricon = ro as RIcon;
if (ricon != null)
ricon.HasBeenUpdated = false;
}
// Parse all Placemarks that have a name and location
XmlNodeList placemarks = inNode.SelectNodes("Placemark[name and Point]");
foreach (XmlNode node in placemarks)
{
try
{
string name = node.SelectSingleNode("name").InnerText;
RIcon update = null;
// Extract the location string for this Placemark node and split it up
string loc = node.SelectSingleNode("Point/coordinates").InnerText.Trim();
LLA lla = ParseCoordinate(loc);
string desc = null;
string uri = null;
// Extract a description and make sure it's not too long
XmlNode xnode = node.SelectSingleNode("description");
if (xnode != null)
{
string descRaw = xnode.InnerText;
uri = SearchUri(descRaw);
// Ashish Datta - commented so that the HTML stays in the description property.
desc = descRaw;
if (desc.Length > 505)
desc = desc.Substring(0, 500) + "...";
}
float rotation = 0;
bool bRotated = false;
string rotRaw = null;
// Locate a node containing rotation
XmlNode rotNode1 = node.SelectSingleNode("Point/rotation");
if (rotNode1 != null)
rotRaw = rotNode1.InnerText;
else
{
XmlNode rotNode2 = node.SelectSingleNode("IconStyle/heading");
if (rotNode2 != null)
rotRaw = rotNode2.InnerText;
else
{
XmlNode rotNode3 = node.SelectSingleNode("Style/IconStyle/heading");
if (rotNode3 != null)
rotRaw = rotNode3.InnerText;
}
}
// If rotation was found parse it
if (rotRaw != null)
{
rotation = Convert.ToSingle(rotRaw, CultureInfo.InvariantCulture);
bRotated = true;
}
// Find a style for this icon
Style style = LocateStyle(node, KmlPath);
// Check if this icon has to be extruded
bool bExtrude = false;
XmlNode extrudeNode = node.SelectSingleNode("Point/extrude");
if (extrudeNode != null)
{
if (extrudeNode.InnerText == "1")
bExtrude = true;
}
// See if this icon already exists, and store it if it does
foreach (WorldWind.Renderable.RenderableObject ro in layer.ChildObjects)
{
RIcon ricon = ro as RIcon;
if (ricon != null)
{
if ((ro.Name == name) && ((style == null) || ((ricon.NormalIcon == style.NormalIcon) && (!ricon.HasBeenUpdated))))
{
update = ricon;
update.HasBeenUpdated = true;
break;
}
}
}
// If a previous icons has been found update it's location
if (update != null)
{
update.IsRotated = bRotated;
if (bRotated)
{
update.Rotation = Angle.FromDegrees(rotation);
}
if (style != null)
{
update.Height = Double.IsNaN(style.NormalScale) ? IconSizeConstant : (int)(style.NormalScale * Math.Min(((Bitmap)bitmapCache[style.NormalIcon]).Height, IconSizeConstant));
update.Width = Double.IsNaN(style.NormalScale) ? IconSizeConstant : (int)(style.NormalScale * Math.Min(((Bitmap)bitmapCache[style.NormalIcon]).Width, IconSizeConstant));
update.Description = desc;
update.SetPosition(lla.lat, lla.lon, lla.alt);
}
}
else
{
// Create the icon with either the generated bitmap or the default dot
if (style != null)
{
CreateIcon(layer, name, desc, uri, lla.lat, lla.lon, lla.alt, style, bRotated, rotation, bExtrude);
}
else
{
// Use the default 'tack' icon if no style was found
string pal3Path = Path.Combine(KmlDirectory, "icons/palette-3.png");
if (File.Exists(pal3Path))
{
if (!bitmapCache.Contains(pal3Path))
bitmapCache.Add(pal3Path, (Bitmap)Bitmap.FromFile(pal3Path));
Style pinStyle = new Style(GetSubImage(new Style(pal3Path), 448, 64, 64, 64));
CreateIcon(layer, name, desc, uri, lla.lat, lla.lon, lla.alt, pinStyle, bRotated, rotation, bExtrude);
}
}
}
}
catch (Exception ex)
{ Log.Write(Log.Levels.Error, "KMLImporter: " + ex.ToString()); }
}
// Cleanup icons that have not been updated
RemoveUnusedIcons(layer);
}
/// <summary>
/// Creates a scaled icon on the globe
/// </summary>
/// <param name="Name">The name of the item</param>
/// <param name="Desc">The description</param>
/// <param name="Lat">The latitude for the icon</param>
/// <param name="Lon">The longitude for the icon</param>
/// <param name="Alt">The altitude to draw the icon at</param>
/// <param name="bitmapPath">The path to the bitmap to show</param>
private void CreateIcon(RIcons layer, string Name, string Desc, string Uri, float Lat, float Lon, float Alt,
Style style, bool bRotated, float rotation, bool bExtrude)
{
// Create the icon and set initial settings
RIcon ic = new RIcon(
Name, // name
Lat, // latitude
Lon, // longitude
style.NormalIcon, // helper
Alt); // altitude
// Set optional icon settings
if (Desc != null)
ic.Description = Desc;
if (Uri != null)
ic.ClickableActionURL = Uri;
if (bRotated)
{
ic.Rotation = Angle.FromDegrees(rotation);
ic.IsRotated = true;
}
ic.m_drawGroundStick = bExtrude;
if (style.NormalIcon != null && bitmapCache.Contains(style.NormalIcon))
{
ic.Image = (Bitmap)bitmapCache[style.NormalIcon];
ic.Height = Double.IsNaN(style.NormalScale) ? IconSizeConstant : (int)(style.NormalScale * Math.Min(((Bitmap)bitmapCache[style.NormalIcon]).Height, IconSizeConstant));
ic.Width = Double.IsNaN(style.NormalScale) ? IconSizeConstant : (int)(style.NormalScale * Math.Min(((Bitmap)bitmapCache[style.NormalIcon]).Width, IconSizeConstant));
}
// Add the icon to the layer
layer.Add(ic);
}
/// <summary>
/// Extracts a rectangular selection from a given style
/// </summary>
/// <param name="filename">The file to extract the SubBitmap from</param>
/// <param name="x">x</param>
/// <param name="y">y</param>
/// <param name="w">width</param>
/// <param name="h">height</param>
/// <returns>The generated bitmap</returns>
private string GetSubImage(Style style, int x, int y, int w, int h)
{
// Try using a cached version
string key = style.NormalIcon+ "|"
+x.ToString("D5", CultureInfo.InvariantCulture)
+y.ToString("D5", CultureInfo.InvariantCulture)
+w.ToString("D5", CultureInfo.InvariantCulture)
+h.ToString("D5", CultureInfo.InvariantCulture);
if (bitmapCache.ContainsKey(key))
return key;
// Create a new bitmap to draw into
Bitmap outImage = new Bitmap(w, h);
Graphics graphics = Graphics.FromImage(outImage);
// Draw a region into the newly created bitmap
RectangleF destinationRect = new RectangleF(0, 0, w, h);
if (style.NormalIcon != null && bitmapCache.Contains(style.NormalIcon))
{
System.Drawing.Bitmap bit = ((Bitmap)bitmapCache[style.NormalIcon]);
RectangleF sourceRect = new RectangleF(x, bit.Height - y - h, w, h);
graphics.DrawImage((Bitmap)bitmapCache[style.NormalIcon], destinationRect, sourceRect, GraphicsUnit.Pixel);
graphics.Flush();
// Cache the generated bitmap
bitmapCache.Add(key, outImage);
return key;
}
else
{
return null;
}
}
/// <summary>
/// Modifies a style with Style tags loaded from an XmlNode
/// </summary>
/// <param name="style">The XmlNode containing override information</param>
/// <param name="oldStyle">The style to override</param>
/// <param name="KmlPath">The path to the KML file that is being loaded</param>
/// <returns>The style with overridden values</returns>
private Style GetStyle(XmlNode style, Style oldStyle, string KmlPath)
{
try
{
Style overStyle = oldStyle;
bool bPalette = false;
// Determine the scale, if any, for this style
XmlNode scaleNode = style.SelectSingleNode("IconStyle/scale");
if (scaleNode != null)
overStyle.NormalScale = Convert.ToDouble(scaleNode.InnerText, CultureInfo.InvariantCulture);
// Search for style tags in location 1
XmlNode hrefNode = style.SelectSingleNode("IconStyle/Icon/href");
if (hrefNode != null)
{
string filename = hrefNode.InnerText;
if (filename.StartsWith("root://")) // Use palette bitmap
{
filename = Path.Combine(KmlDirectory, filename.Remove(0, 7));
if (File.Exists(filename))
{
bPalette = true;
overStyle.NormalIcon = GetDiskImage(filename);
}
}
else if (filename.StartsWith("http://")) // Use bitmap from the internet
{
overStyle.NormalIcon = GetWebImage(filename);
}
else if (File.Exists(Path.Combine(Path.GetDirectoryName(KmlPath), filename))) // Use a file from disk
{
overStyle.NormalIcon = GetDiskImage(Path.Combine(Path.GetDirectoryName(KmlPath), filename));
}
else if (File.Exists(Path.Combine(KmlDirectory, filename))) // Use a file from disk
{
overStyle.NormalIcon = GetDiskImage(Path.Combine(KmlDirectory, filename));
}
}
// See if we need to cut this style to a substyle
XmlNode wNode = style.SelectSingleNode("IconStyle/Icon/w");
XmlNode hNode = style.SelectSingleNode("IconStyle/Icon/h");
if (wNode != null && hNode != null)
{
int w = Convert.ToInt32(wNode.InnerText, CultureInfo.InvariantCulture);
int h = Convert.ToInt32(hNode.InnerText, CultureInfo.InvariantCulture);
int x = 0, y = 0;
XmlNode xNode = style.SelectSingleNode("IconStyle/Icon/x");
if (xNode != null)
x = Convert.ToInt32(xNode.InnerText, CultureInfo.InvariantCulture);
XmlNode yNode = style.SelectSingleNode("IconStyle/Icon/y");
if (yNode != null)
y = Convert.ToInt32(yNode.InnerText, CultureInfo.InvariantCulture);
if (bPalette)
overStyle.NormalIcon = GetSubImage(overStyle, x*2, y*2, w*2, h*2);
else
overStyle.NormalIcon = GetSubImage(overStyle, x, y, w, h);
}
// Search for style tags in a possible secondary location
XmlNode iconNode = style.SelectSingleNode("icon");
if (iconNode != null)
{
string filename = iconNode.InnerText;
if (!filename.StartsWith("http://"))
return null;
overStyle.NormalIcon = GetWebImage(filename);
}
XmlNode balloonStyleNode = style.SelectSingleNode("BalloonStyle");
if(balloonStyleNode != null)
{
BalloonStyle balloonStyle = new BalloonStyle();
XmlNode balloonTextNode = balloonStyleNode.SelectSingleNode("text");
if(balloonTextNode != null)
{
TextElement textElement = new TextElement();
textElement.Text = balloonTextNode.InnerText;
XmlNode textNodeColor = balloonTextNode.SelectSingleNode("textColor");
if(textNodeColor != null)
textElement.TextColor = new ColorElement(ParseColor(textNodeColor.InnerText));
balloonStyle.Text = textElement;
}
XmlNode balloonTextColorNode = balloonStyleNode.SelectSingleNode("textColor");
if(balloonTextColorNode != null)
balloonStyle.TextColor = new ColorElement(ParseColor(balloonTextColorNode.InnerText));
XmlNode balloonColorNode = balloonStyleNode.SelectSingleNode("color");
if(balloonColorNode != null)
balloonStyle.Color = new ColorElement(ParseColor(balloonColorNode.InnerText));
overStyle.BalloonStyle = balloonStyle;
}
XmlNode iconStyleNode = style.SelectSingleNode("IconStyle");
if(iconStyleNode != null)
{
XmlNode iconElementNode = iconStyleNode.SelectSingleNode("Icon");
IconElement iconElement = new IconElement();
if(iconElementNode != null)
{
XmlNode iconElementHrefNode = iconElementNode.SelectSingleNode("href");
if (iconElementHrefNode != null)
{
string filename = iconElementHrefNode.InnerText;
if (filename.StartsWith("root://")) // Use palette bitmap
{
filename = Path.Combine(KmlDirectory, filename.Remove(0, 7));
if (File.Exists(filename))
{
bPalette = true;
iconElement.href = GetDiskImage(filename);
}
}
else if (filename.StartsWith("http://")) // Use bitmap from the internet
{
iconElement.href = GetWebImage(filename);
}
else if (File.Exists(Path.Combine(Path.GetDirectoryName(KmlPath), filename))) // Use a file from disk
{
iconElement.href = GetDiskImage(Path.Combine(Path.GetDirectoryName(KmlPath), filename));
}
else if (File.Exists(Path.Combine(KmlDirectory, filename))) // Use a file from disk
{
iconElement.href = GetDiskImage(Path.Combine(KmlDirectory, filename));
}
}
// See if we need to cut this style to a substyle
XmlNode iconElementWNode = iconElementNode.SelectSingleNode("w");
XmlNode iconElementHNode = iconElementNode.SelectSingleNode("h");
if (iconElementWNode != null && iconElementHNode != null)
{
int w = Convert.ToInt32(wNode.InnerText, CultureInfo.InvariantCulture);
int h = Convert.ToInt32(hNode.InnerText, CultureInfo.InvariantCulture);
int x = 0, y = 0;
XmlNode xNode = iconElementNode.SelectSingleNode("x");
if (xNode != null)
x = Convert.ToInt32(xNode.InnerText, CultureInfo.InvariantCulture);
XmlNode yNode = iconElementNode.SelectSingleNode("y");
if (yNode != null)
y = Convert.ToInt32(yNode.InnerText, CultureInfo.InvariantCulture);
if (bPalette)
iconElement.href = GetSubImage(overStyle, x*2, y*2, w*2, h*2);
else
iconElement.href = GetSubImage(overStyle, x, y, w, h);
}
IconStyle iconStyle = new IconStyle(iconElement);
XmlNode iconStyleColorNode = iconStyleNode.SelectSingleNode("color");
if(iconStyleColorNode != null)
iconStyle.Color = new ColorElement(ParseColor(iconStyleColorNode.InnerText));
XmlNode iconStyleColorModeNode = iconStyleNode.SelectSingleNode("colorMode");
if(iconStyleColorModeNode != null)
{
iconStyle.ColorMode = (iconStyleColorModeNode.InnerText.ToLower() == "random" ? ColorMode.Random : ColorMode.Normal);
}
XmlNode iconStyleHeadingNode = iconStyleNode.SelectSingleNode("heading");
if(iconStyleHeadingNode != null)
iconStyle.Heading = new DecimalElement(double.Parse(iconStyleHeadingNode.InnerText, CultureInfo.InvariantCulture));
XmlNode iconStyleScaleNode = iconStyleNode.SelectSingleNode("scale");
if(iconStyleScaleNode != null)
iconStyle.Scale = new DecimalElement(double.Parse(iconStyleScaleNode.InnerText, CultureInfo.InvariantCulture));
overStyle.IconStyle = iconStyle;
}
}
XmlNode labelStyleNode = style.SelectSingleNode("LabelStyle");
if(labelStyleNode != null)
{
LabelStyle labelStyle = new LabelStyle();
XmlNode labelColorNode = labelStyleNode.SelectSingleNode("color");
if(labelColorNode != null)
labelStyle.Color = new ColorElement(ParseColor(labelColorNode.InnerText));
XmlNode labelColorModeNode = labelStyleNode.SelectSingleNode("colorMode");
if(labelColorModeNode != null)
labelStyle.ColorMode = (labelColorModeNode.InnerText.ToLower() == "random" ? ColorMode.Random : ColorMode.Normal);
XmlNode labelScaleNode = labelStyleNode.SelectSingleNode("scale");
if(labelScaleNode != null)
labelStyle.Scale = new DecimalElement(double.Parse(labelScaleNode.InnerText, CultureInfo.InvariantCulture));
overStyle.LabelStyle = labelStyle;
}
XmlNode lineStyleNode = style.SelectSingleNode("LineStyle");
if(lineStyleNode != null)
{
LineStyle lineStyle = new LineStyle();
XmlNode lineColorNode = lineStyleNode.SelectSingleNode("color");
if(lineColorNode != null)
lineStyle.Color = new ColorElement(ParseColor(lineColorNode.InnerText));
XmlNode lineColorModeNode = lineStyleNode.SelectSingleNode("colorMode");
if(lineColorModeNode != null)
lineStyle.ColorMode = (lineColorModeNode.InnerText.ToLower() == "random" ? ColorMode.Random : ColorMode.Normal);
XmlNode lineWidthNode = lineStyleNode.SelectSingleNode("width");
if(lineWidthNode != null)
lineStyle.Width = new DecimalElement(double.Parse(lineWidthNode.InnerText, CultureInfo.InvariantCulture));
overStyle.LineStyle = lineStyle;
}
XmlNode polyStyleNode = style.SelectSingleNode("PolyStyle");
if(polyStyleNode != null)
{
PolyStyle polyStyle = new PolyStyle();
XmlNode polyColorNode = polyStyleNode.SelectSingleNode("color");
if(polyColorNode != null)
polyStyle.Color = new ColorElement(ParseColor(polyColorNode.InnerText));
XmlNode polyColorModeNode = polyStyleNode.SelectSingleNode("colorMode");
if(polyColorModeNode != null)
polyStyle.ColorMode = (polyColorModeNode.InnerText.ToLower() == "random" ? ColorMode.Random : ColorMode.Normal);
XmlNode polyFillNode = polyStyleNode.SelectSingleNode("fill");
if(polyFillNode != null)
polyStyle.Fill = (polyFillNode.InnerText == "1" ? true : false);
XmlNode polyOutlineNode = polyStyleNode.SelectSingleNode("outline");
if(polyOutlineNode != null)
polyStyle.Outline = (polyOutlineNode.InnerText == "1" ? true : false);
overStyle.PolyStyle = polyStyle;
}
return overStyle;
}
catch (System.Net.WebException ex)
{
Log.Write(Log.Levels.Error, "KMLImporter: " + ex.ToString());
}
return null;
}
/// <summary>
/// Parses Polygons
/// </summary>
/// <param name="inNode">The node containing Polygons</param>
/// <param name="layer">The layer to add the resulting Polygons to</param>
private void ParsePolygons(XmlNode inNode, RIcons layer)
{
// Parse all Placemarks that have a name and Polygon
XmlNodeList polygons = inNode.SelectNodes("Placemark[name and Polygon]");
Random rand = new Random((int)DateTime.Now.Ticks);
foreach (XmlNode node in polygons)
{
// Extract the name from this node
XmlNode nameNode = node.SelectSingleNode("name");
string name = nameNode.InnerText;
Style style = null;
// get StyleUrl
XmlNode styleUrlNode = node.SelectSingleNode("styleUrl");
if(styleUrlNode != null)
{
string styleUrlKey = styleUrlNode.InnerText.Trim();
if(styleUrlKey.StartsWith("#"))
styleUrlKey = styleUrlKey.Substring(1, styleUrlKey.Length - 1);
style = (Style)iconStyles[styleUrlKey];
}
else
{
XmlNode styleNode = node.SelectSingleNode("Style");
if(styleNode != null)
style = GetStyle( styleNode, new Style(), "");
}
if(style == null)
style = new Style();
if(style.LineStyle == null)
style.LineStyle = new LineStyle();
if(style.PolyStyle == null)
style.PolyStyle = new PolyStyle();
// See if this LineString has to be extruded to the ground
bool extrude = false;
XmlNode extrudeNode = node.SelectSingleNode("Polygon/extrude");
if (extrudeNode != null)
extrude = Convert.ToBoolean(Convert.ToInt16(extrudeNode.InnerText));
XmlNode altitudeModeNode = node.SelectSingleNode("Polygon/altitudeMode");
AltitudeMode altitudeMode = GetAltitudeMode(altitudeModeNode);
LinearRing outerRing = null;
LinearRing[] innerRings = null;
// Parse Outer Ring
XmlNode outerRingNode = node.SelectSingleNode("Polygon/outerBoundaryIs/LinearRing/coordinates");
if (outerRingNode != null)
{
Point3d[] points = ParseCoordinates(outerRingNode);
Console.WriteLine(points.Length);
outerRing = new LinearRing();
outerRing.Points = points;
}
// Parse Inner Ring
XmlNodeList innerRingNodes = node.SelectNodes("Polygon/innerBoundaryIs");
if (innerRingNodes != null)
{
innerRings = new LinearRing[innerRingNodes.Count];
for(int i = 0; i < innerRingNodes.Count; i++)
{
Point3d[] points = ParseCoordinates(innerRingNodes[i]);
innerRings[i] = new LinearRing();
innerRings[i].Points = points;
}
}
if(outerRing != null)
{
PolygonFeature polygonFeature = new PolygonFeature(
name, m_world,
outerRing,
innerRings,
System.Drawing.Color.FromArgb(style.PolyStyle.Color.Color));
polygonFeature.Extrude = extrude;
polygonFeature.AltitudeMode = altitudeMode;
polygonFeature.Outline = style.PolyStyle.Outline;
if(style.LineStyle.Color != null)
polygonFeature.OutlineColor = System.Drawing.Color.FromArgb(style.LineStyle.Color.Color);
XmlNode visibilityNode = node.SelectSingleNode("visibility");
if(visibilityNode != null)
polygonFeature.IsOn = (visibilityNode.InnerText == "1" ? true : false);
layer.Add(polygonFeature);
}
}
}
