public MapImageData GetImage()
{
StringCollection visibleLayers = null;
if (_appState.VisibleLayers.ContainsKey(_appState.MapTab))
{
visibleLayers = _appState.VisibleLayers[_appState.MapTab];
}
string keyExtent = _appState.Extent.ToDelimitedString();
string keySize = _width.ToString() + "," + _height.ToString();
string keyLayers = visibleLayers != null?visibleLayers.ToString('|') : "";
string key = String.Format("{0}|{1}|{2}|{3}|{4}|{5}", _appState.MapTab, _appState.Level, keyExtent, keySize, _resolution, keyLayers);
CommonImageType imageType = CommonImageType.Png;
byte[] image = null;
MapImageData mapImageData = AppContext.ServerImageCache.Retrieve(key);
if (mapImageData != null)
{
imageType = mapImageData.Type;
image = mapImageData.Image;
}
Configuration config = AppContext.GetConfiguration();
Configuration.MapTabRow mapTab = config.MapTab.FindByMapTabID(_appState.MapTab);
CommonDataFrame dataFrame = AppContext.GetDataFrame(mapTab);
bool isInteractive = !mapTab.IsInteractiveLegendNull() && mapTab.InteractiveLegend == 1;
// create the base image if not found in the cache
if (image == null)
{
CommonMap map = dataFrame.GetMap(_width, _height, _extent);
map.Resolution = _resolution;
map.ImageType = CommonImageType.Png;
double pixelSize = map.Extent.Width / _width;
Dictionary <int, CommonLayer> layerList = new Dictionary <int, CommonLayer>();
Dictionary <int, String> definitionList = new Dictionary <int, String>();
List <String> mapTabLayerIds = new List <String>();
foreach (Configuration.MapTabLayerRow mapTabLayer in mapTab.GetMapTabLayerRows())
{
Configuration.LayerRow layer = mapTabLayer.LayerRow;
mapTabLayerIds.Add(layer.LayerID);
CommonLayer commonLayer = dataFrame.Layers.FirstOrDefault(lyr => String.Compare(lyr.Name, layer.LayerName, true) == 0);
int index = dataFrame.Layers.IndexOf(commonLayer);
bool visibleAtScale = commonLayer.IsWithinScaleThresholds(pixelSize);
bool shownInLegend = !mapTabLayer.IsShowInLegendNull() && mapTabLayer.ShowInLegend == 1;
bool checkedInLegend = !isInteractive || mapTabLayer.IsCheckInLegendNull() || mapTabLayer.CheckInLegend < 0 || (visibleLayers != null && visibleLayers.Contains(layer.LayerID));
bool validLevel = layer.IsLevelFieldNull() || !String.IsNullOrEmpty(_appState.Level);
if (!layerList.ContainsKey(index) && visibleAtScale && (!shownInLegend || checkedInLegend) && validLevel)
{
if (commonLayer.Type == CommonLayerType.Image)
{
map.ImageType = CommonImageType.Jpg;
}
layerList.Add(index, commonLayer);
definitionList.Add(index, layer.GetLevelQuery(commonLayer, _appState.Level));
}
}
if (!mapTab.IsBaseMapIDNull())
{
foreach (Configuration.LayerRow layer in config.Layer.Where(o => !o.IsBaseMapIDNull() && o.BaseMapID == mapTab.BaseMapID))
{
if (!mapTabLayerIds.Contains(layer.LayerID))
{
CommonLayer commonLayer = dataFrame.Layers.FirstOrDefault(o => String.Compare(o.Name, layer.LayerName, true) == 0);
int index = dataFrame.Layers.IndexOf(commonLayer);
bool visibleAtScale = commonLayer.IsWithinScaleThresholds(pixelSize);
if (!layerList.ContainsKey(index) && visibleAtScale)
{
if (commonLayer.Type == CommonLayerType.Image)
{
map.ImageType = CommonImageType.Jpg;
}
layerList.Add(index, commonLayer);
definitionList.Add(index, layer.GetLevelQuery(commonLayer, _appState.Level));
}
}
}
}
int[] indexes = new int[layerList.Keys.Count];
layerList.Keys.CopyTo(indexes, 0);
List <int> indexList = new List <int>(indexes);
indexList.Sort();
for (int i = 0; i < indexList.Count; ++i)
{
map.AddLayer(layerList[indexList[i]], definitionList[indexList[i]]);
}
imageType = map.ImageType;
image = map.GetImageBytes();
AppContext.ServerImageCache.Store(key, new MapImageData(imageType, image));
}
// draw the selected feature graphics and markup
if (_appState.TargetIds.Count > 0 || _appState.SelectionIds.Count > 0 || _appState.MarkupGroups.Count > 0 || _appState.Markup.Count > 0)
{
Bitmap bitmap = new Bitmap(new MemoryStream(image));
bitmap.SetResolution(dataFrame.Dpi, dataFrame.Dpi);
Graphics graphics = Graphics.FromImage(bitmap);
if (_appState.TargetIds.Count > 0 || _appState.SelectionIds.Count > 0)
{
StringCollection targetIds;
StringCollection filteredIds;
StringCollection selectionIds;
PrepareIds(out targetIds, out filteredIds, out selectionIds);
DrawFeatures(graphics, _appState.TargetLayer, filteredIds, AppSettings.FilteredColor, AppSettings.FilteredOpacity, AppSettings.FilteredPolygonMode, AppSettings.FilteredPenWidth, AppSettings.FilteredDotSize);
DrawFeatures(graphics, _appState.SelectionLayer, selectionIds, AppSettings.SelectionColor, AppSettings.SelectionOpacity, AppSettings.SelectionPolygonMode, AppSettings.SelectionPenWidth, AppSettings.SelectionDotSize);
DrawFeatures(graphics, _appState.TargetLayer, targetIds, AppSettings.TargetColor, AppSettings.TargetOpacity, AppSettings.TargetPolygonMode, AppSettings.TargetPenWidth, AppSettings.TargetDotSize);
DrawFeatures(graphics, _appState.TargetLayer, _appState.ActiveMapId, AppSettings.ActiveColor, AppSettings.ActiveOpacity, AppSettings.ActivePolygonMode, AppSettings.ActivePenWidth, AppSettings.ActiveDotSize);
IGeometry selectionBuffer = _appState.SelectionManager.GetSelectionBuffer();
if (selectionBuffer != null)
{
Brush bufferBrush = new SolidBrush(Color.FromArgb(Convert.ToInt32(255 * AppSettings.BufferOpacity), AppSettings.BufferColor));
Pen bufferPen = AppSettings.BufferOutlineOpacity > 0 ? new Pen(new SolidBrush(Color.FromArgb(Convert.ToInt32(255 * AppSettings.BufferOutlineOpacity), AppSettings.BufferOutlineColor)), AppSettings.BufferOutlinePenWidth) : null;
switch (selectionBuffer.OgcGeometryType)
{
case OgcGeometryType.Polygon:
DrawPolygon(graphics, (IPolygon)selectionBuffer, bufferBrush, null, bufferPen);
break;
case OgcGeometryType.MultiPolygon:
DrawMultiPolygon(graphics, (IMultiPolygon)selectionBuffer, bufferBrush, null, bufferPen);
break;
}
}
}
graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
DrawMarkup(graphics);
MemoryStream memoryStream = new MemoryStream();
if (imageType == CommonImageType.Jpg)
{
ImageCodecInfo imageCodecInfo = GetEncoderInfo("image/jpeg");
EncoderParameters encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(Encoder.Quality, 85L);
bitmap.Save(memoryStream, imageCodecInfo, encoderParameters);
}
else
{
bitmap.Save(memoryStream, bitmap.RawFormat);
}
image = memoryStream.ToArray();
}
return(new MapImageData(imageType, image));
}
private List <CommonLayer> GetLegendLayers()
{
StringCollection visibleLayers = null;
if (_pixelSize > 0 && _appState.VisibleLayers.ContainsKey(_appState.MapTab))
{
visibleLayers = _appState.VisibleLayers[_appState.MapTab];
}
Configuration config = AppContext.GetConfiguration();
Configuration.MapTabRow mapTab = config.MapTab.FindByMapTabID(_appState.MapTab);
CommonDataFrame dataFrame = AppContext.GetDataFrame(mapTab);
List <CommonLayer> layerList = new List <CommonLayer>();
List <String> mapTabLayerIds = new List <String>();
foreach (Configuration.MapTabLayerRow mapTabLayer in mapTab.GetMapTabLayerRows())
{
Configuration.LayerRow layer = mapTabLayer.LayerRow;
mapTabLayerIds.Add(layer.LayerID);
CommonLayer commonLayer = dataFrame.Layers.FirstOrDefault(lyr => String.Compare(lyr.Name, layer.LayerName, true) == 0);
if (commonLayer.Type == CommonLayerType.Feature && !layerList.Contains(commonLayer))
{
bool hasClasses = GetNumClasses(commonLayer) > 0;
bool visibleAtScale = _pixelSize <= 0 || commonLayer.IsWithinScaleThresholds(_pixelSize);
bool shownInLegend = !mapTabLayer.IsShowInLegendNull() && mapTabLayer.ShowInLegend == 1;
bool checkedInLegend = mapTabLayer.IsCheckInLegendNull() || mapTabLayer.CheckInLegend < 0 || visibleLayers == null || visibleLayers.Contains(layer.LayerID);
bool shownInPrintLegend = !(!mapTabLayer.IsShowInPrintLegendNull() && mapTabLayer.ShowInPrintLegend == 0);
if (hasClasses && visibleAtScale && shownInLegend && checkedInLegend && shownInPrintLegend)
{
layerList.Add(commonLayer);
while (commonLayer.Parent != null)
{
commonLayer = commonLayer.Parent;
if (!layerList.Contains(commonLayer))
{
layerList.Add(commonLayer);
}
}
}
}
}
if (!mapTab.IsBaseMapIDNull() && !mapTab.IsShowBaseMapInLegendNull() && mapTab.ShowBaseMapInLegend == 1)
{
foreach (Configuration.LayerRow layer in config.Layer.Where(o => !o.IsBaseMapIDNull() && o.BaseMapID == mapTab.BaseMapID))
{
if (!mapTabLayerIds.Contains(layer.LayerID))
{
CommonLayer commonLayer = dataFrame.Layers.FirstOrDefault(o => String.Compare(o.Name, layer.LayerName, true) == 0);
if (commonLayer.Type == CommonLayerType.Feature && !layerList.Contains(commonLayer))
{
bool hasClasses = GetNumClasses(commonLayer) > 0;
bool visibleAtScale = _pixelSize <= 0 || commonLayer.IsWithinScaleThresholds(_pixelSize);
if (hasClasses && visibleAtScale)
{
layerList.Add(commonLayer);
while (commonLayer.Parent != null)
{
commonLayer = commonLayer.Parent;
if (!layerList.Contains(commonLayer))
{
layerList.Add(commonLayer);
}
}
}
}
}
}
}
return(layerList);
}
public void Initialize(Configuration config, AppState appState, Configuration.ApplicationRow application)
{
foreach (Configuration.ApplicationMapTabRow appMapTabRow in application.GetApplicationMapTabRows())
{
Configuration.MapTabRow mapTabRow = appMapTabRow.MapTabRow;
CommonDataFrame dataFrame = AppContext.GetDataFrame(mapTabRow);
bool isInteractive = !mapTabRow.IsInteractiveLegendNull() && mapTabRow.InteractiveLegend == 1;
CheckMode checkMode = CheckMode.None;
List <CommonLayer> configuredLayers = new List <CommonLayer>();
List <LayerProperties> layerProperties = new List <LayerProperties>();
List <String> mapTabLayerIds = new List <String>();
string name = null;
string metaDataUrl = null;
StringCollection visibleLayers = isInteractive ? appState.VisibleLayers[mapTabRow.MapTabID] : null;
// find layers attached via MapTabLayer
foreach (Configuration.MapTabLayerRow mapTabLayerRow in mapTabRow.GetMapTabLayerRows())
{
if (!mapTabLayerRow.IsShowInLegendNull() && mapTabLayerRow.ShowInLegend == 1)
{
CommonLayer layer = dataFrame.Layers.FirstOrDefault(lyr => String.Compare(lyr.Name, mapTabLayerRow.LayerRow.LayerName, true) == 0);
name = mapTabLayerRow.LayerRow.IsDisplayNameNull() ? mapTabLayerRow.LayerRow.LayerName : mapTabLayerRow.LayerRow.DisplayName;
metaDataUrl = mapTabLayerRow.LayerRow.IsMetaDataURLNull() ? null : mapTabLayerRow.LayerRow.MetaDataURL;
bool isExclusive = mapTabLayerRow.IsIsExclusiveNull() ? false : mapTabLayerRow.IsExclusive == 1;
string tag = mapTabLayerRow.LayerID;
mapTabLayerIds.Add(tag);
if (isInteractive)
{
bool layerVisible = visibleLayers != null && visibleLayers.Contains(mapTabLayerRow.LayerID);
checkMode = mapTabLayerRow.IsCheckInLegendNull() || mapTabLayerRow.CheckInLegend < 0 ? CheckMode.Empty :
layerVisible ? CheckMode.Checked : CheckMode.Unchecked;
}
configuredLayers.Add(layer);
layerProperties.Add(new LayerProperties(name, tag, checkMode, isExclusive, metaDataUrl));
}
}
// find layers attached via BaseMapID
if (!mapTabRow.IsBaseMapIDNull() && !mapTabRow.IsShowBaseMapInLegendNull() && mapTabRow.ShowBaseMapInLegend == 1)
{
if (checkMode != CheckMode.None)
{
checkMode = CheckMode.Empty;
}
foreach (DataRow row in config.Layer.Select("BaseMapID = '" + mapTabRow.BaseMapID + "'"))
{
Configuration.LayerRow layerRow = (Configuration.LayerRow)row;
if (!mapTabLayerIds.Contains(layerRow.LayerID))
{
CommonLayer layer = dataFrame.Layers.FirstOrDefault(lyr => String.Compare(lyr.Name, layerRow.LayerName, true) == 0);
metaDataUrl = layerRow.IsMetaDataURLNull() ? null : layerRow.MetaDataURL;
configuredLayers.Add(layer);
layerProperties.Add(new LayerProperties(layerRow.Name, null, checkMode, false, metaDataUrl));
}
}
}
// add group layers as necessary
for (int i = 0; i < configuredLayers.Count; ++i)
{
checkMode = !isInteractive ? CheckMode.None : layerProperties[i].CheckMode == CheckMode.Checked ? CheckMode.Checked : CheckMode.Unchecked;
CommonLayer parent = configuredLayers[i].Parent;
while (parent != null)
{
int index = configuredLayers.IndexOf(parent);
if (index < 0)
{
configuredLayers.Add(parent);
layerProperties.Add(new LayerProperties(parent.Name, null, checkMode, false, null));
}
else
{
if (checkMode == CheckMode.Checked && layerProperties[index].CheckMode == CheckMode.Unchecked)
{
layerProperties[index].CheckMode = CheckMode.Checked;
}
}
parent = parent.Parent;
}
}
// create the top level legend control for this map tab
HtmlGenericControl parentLegend = new HtmlGenericControl("div");
pnlLegendScroll.Controls.Add(parentLegend);
parentLegend.Attributes["data-maptab"] = appMapTabRow.MapTabID;
parentLegend.Attributes["class"] = "LegendTop";
parentLegend.Style["display"] = appMapTabRow.MapTabID == appState.MapTab ? "block" : "none";
// add the Legend controls for the configured layers
foreach (CommonLayer layer in dataFrame.TopLevelLayers)
{
AddLayerToLegend(mapTabRow.MapTabID, configuredLayers, layerProperties, parentLegend, layer);
}
}
}