public void DrawOverlay(IGraphicsContainer container, bool clearOld)
{
if (RenderOverlayImage == null || _canvas != null)
{
return;
}
if (container == null)
{
ClearOverlay();
}
GraphicsEngine.Abstraction.IBitmap bm = null;
try
{
bm = GraphicsEngine.Current.Engine.CreateBitmap(iWidth, iHeight);
bm.MakeTransparent();
_canvas = bm.CreateCanvas();
foreach (IGraphicElement element in container.Elements)
{
element.Draw(this);
}
RenderOverlayImage(bm, clearOld);
}
catch
{
}
finally
{
if (_canvas != null)
{
_canvas.Dispose();
}
_canvas = null;
if (bm != null)
{
bm.Dispose();
}
}
}
public bool Create(GraphicsEngine.Abstraction.IBitmap bitmap, int a, int y)
{
double dpm = _dpi / 0.0256;
double pix = _scale / dpm;
double bl = pix * (200 * (_dpi / 96)) / 5.0;
float fac = (float)_dpi / 96;
if (bl > 1000000)
{
bl = Math.Round((int)(bl / 100000) * 100000.0, 0);
}
else if (bl > 100000)
{
bl = Math.Round((int)(bl / 10000) * 10000.0, 0);
}
else if (bl > 10000)
{
bl = Math.Round((int)(bl / 5000) * 5000.0, 0);
}
else if (bl > 1000)
{
bl = Math.Round((int)(bl / 500) * 500.0, 0);
}
else if (bl > 100)
{
bl = Math.Round((int)(bl / 100) * 100.0, 0);
}
else if (bl > 10)
{
bl = Math.Round((int)(bl / 10) * 10.0, 0);
}
int bm_bl = (int)(bl / pix);
using (var canvas = bitmap.CreateCanvas())
using (var brush = GraphicsEngine.Current.Engine.CreateSolidBrush(GraphicsEngine.ArgbColor.FromArgb(155, 149, 149)))
using (var brush2 = GraphicsEngine.Current.Engine.CreateSolidBrush(GraphicsEngine.ArgbColor.White))
using (var brush3 = GraphicsEngine.Current.Engine.CreateSolidBrush(GraphicsEngine.ArgbColor.White))
using (var pen = GraphicsEngine.Current.Engine.CreatePen(GraphicsEngine.ArgbColor.Black, 1f))
using (var font = GraphicsEngine.Current.Engine.CreateFont("Verdana", 7 * fac, GraphicsEngine.FontStyle.Bold))
{
int dist = (int)Math.Round(bl * 5, 0);
// Hintergrund und Rahmen zeichnen
canvas.FillRectangle(brush, new GraphicsEngine.CanvasRectangleF(a + 0, 15 * fac + y, bm_bl, 5 * fac));
canvas.FillRectangle(brush, new GraphicsEngine.CanvasRectangleF(a + 2 * bm_bl, 15 * fac + y, bm_bl, 5 * fac));
canvas.FillRectangle(brush, new GraphicsEngine.CanvasRectangleF(a + 4 * bm_bl, 15 * fac + y, bm_bl, 5 * fac));
canvas.FillRectangle(brush2, new GraphicsEngine.CanvasRectangleF(a + 1 * bm_bl, 15 * fac + y, bm_bl, 5 * fac));
canvas.FillRectangle(brush2, new GraphicsEngine.CanvasRectangleF(a + 3 * bm_bl, 15 * fac + y, bm_bl, 5 * fac));
canvas.DrawRectangle(pen, new GraphicsEngine.CanvasRectangleF(a + 0, 14 * fac + y, bm_bl * 5 - 1, 5 * fac));
canvas.DrawLine(pen, a, 12 * fac + y, a, 19 * fac + y);
canvas.DrawLine(pen, a + bm_bl * 5 - 1, 12 * fac + y, a + bm_bl * 5 - 1, 19 * fac + y);
canvas.DrawLine(pen, a + bm_bl, 14 * fac + y, a + bm_bl, 19 * fac + y);
canvas.DrawLine(pen, a + bm_bl * 2, 14 * fac + y, a + bm_bl * 2, 19 * fac + y);
canvas.DrawLine(pen, a + bm_bl * 3, 14 * fac + y, a + bm_bl * 3, 19 * fac + y);
canvas.DrawLine(pen, a + bm_bl * 4, 14 * fac + y, a + bm_bl * 4, 19 * fac + y);
string text = Math.Round(_scale, 0).ToString(), t = "";
int counter = 1;
// Tausenderpunkte
for (int i = text.Length - 1; i > 0; i--)
{
t = text[i] + t;
if ((counter++ % 3) == 0)
{
t = "." + t;
}
}
t = text[0] + t;
text = "M 1:" + t;
drawString(canvas, font, text, (float)(a + (bm_bl * 5 - canvas.MeasureText(text, font).Width) / 2), y);
drawString(canvas, font, "0", a - 4, y);
if (dist > 1000)
{
float x = dist / (float)1000;
text = x.ToString() + " km";
}
else
{
text = dist.ToString() + " m";
}
drawString(canvas, font, text, (float)(a + bm_bl * 5 - 5 * fac), y);
}
return(true);
}
public bool Merge(GraphicsEngine.Abstraction.IBitmap bitmap, IDisplay display)
{
try
{
int iWidth = bitmap.Width;
int iHeight = bitmap.Height;
using (var canvas = bitmap.CreateCanvas())
{
canvas.CompositingMode = GraphicsEngine.CompositingMode.SourceOver;
foreach (GeorefBitmap geoBmp in _picList)
{
if (geoBmp == null || geoBmp.Bitmap == null)
{
continue;
}
if (bitmap != geoBmp.Bitmap)
{
if (geoBmp.Envelope != null)
{
double x0, y0, x1, y1, x2, y2;
gView.Framework.Geometry.IGeometry geom = gView.Framework.Geometry.GeometricTransformerFactory.Transform2D(geoBmp.Envelope, geoBmp.SpatialReference, display.SpatialReference);
if (geom is gView.Framework.Geometry.IPolygon)
{
gView.Framework.Geometry.IRing ring = ((gView.Framework.Geometry.IPolygon)geom)[0];
x0 = ring[1].X; y0 = ring[1].Y;
x1 = ring[2].X; y1 = ring[2].Y;
x2 = ring[0].X; y2 = ring[0].Y;
/////////////////////////////////////////////////////////
Display d = new Display(display.Map, false);
d.Limit = d.Envelope = geoBmp.Envelope;
d.iWidth = geoBmp.Bitmap.Width;
d.iHeight = geoBmp.Bitmap.Height;
d.SpatialReference = geoBmp.SpatialReference;
Resample(bitmap, display, geoBmp.Bitmap, d);
continue;
}
else
{
x0 = geoBmp.Envelope.minx; y0 = geoBmp.Envelope.maxy;
x1 = geoBmp.Envelope.maxx; y1 = geoBmp.Envelope.maxy;
x2 = geoBmp.Envelope.minx; y2 = geoBmp.Envelope.miny;
}
display.World2Image(ref x0, ref y0);
display.World2Image(ref x1, ref y1);
display.World2Image(ref x2, ref y2);
GraphicsEngine.CanvasPointF[] points =
{
new GraphicsEngine.CanvasPointF((float)x0, (float)y0),
new GraphicsEngine.CanvasPointF((float)x1, (float)y1),
new GraphicsEngine.CanvasPointF((float)x2, (float)y2)
};
canvas.DrawBitmap(geoBmp.Bitmap,
points,
new GraphicsEngine.CanvasRectangleF(0, 0, geoBmp.Bitmap.Width, geoBmp.Bitmap.Height),
opacity: geoBmp.Opacity);
}
else
{
canvas.DrawBitmap(geoBmp.Bitmap,
new GraphicsEngine.CanvasRectangle(0, 0, iWidth, iHeight),
new GraphicsEngine.CanvasRectangle(0, 0, geoBmp.Bitmap.Width, geoBmp.Bitmap.Height),
opacity: geoBmp.Opacity);
}
}
}
}
if (_scale > 0)
{
Scalebar bar = new Scalebar(_scale, m_dpi);
bar.Create(bitmap, bitmap.Width - (int)(50 * m_dpi / 96.0) - bar.ScaleBarWidth, bitmap.Height - (int)(32 * m_dpi / 96.0));
}
return(true);
}
catch (Exception ex)
{
_errMsg = ex.Message + "\n" + ex.Source + "\n" + ex.StackTrace;
return(false);
}
}
async private Task Render(IFeatureLayer layer)
{
IFeatureRenderer clonedFeatureRenderer = null;
ILabelRenderer clonedLabelRenderer = null;
GraphicsEngine.Abstraction.IBitmap compositionModeCopyBitmap = null;
GraphicsEngine.Abstraction.ICanvas compositionModeCopyCanvas = null, originalCanvas = null;
try
{
_map.FireOnUserInterface(true);
if ((
layer.FeatureRenderer == null ||
layer.FeatureRenderer.HasEffect(layer, _map) == false)
&&
(
layer.LabelRenderer == null ||
_useLabelRenderer == false
))
{
return;
}
IFeatureClass fClass = layer.FeatureClass;
if (fClass == null)
{
return;
}
//IDataset dataset = (IDataset)_map[layer];
//if (dataset == null) return;
//if (!(dataset is IFeatureDataset)) return;
IGeometry filterGeom = _map.Display.DisplayTransformation.TransformedBounds(_map.Display); //_map.Display.Envelope;
if (_map.Display.GeometricTransformer != null)
{
filterGeom = MapHelper.Project(fClass, _map.Display);
}
gView.Framework.Data.SpatialFilter filter = new gView.Framework.Data.SpatialFilter();
filter.DatasetCachingContext = _datasetCachingContext;
filter.Geometry = filterGeom;
filter.AddField(fClass.ShapeFieldName);
//filter.FuzzyQuery = true;
filter.SpatialRelation = spatialRelation.SpatialRelationMapEnvelopeIntersects;
filter.MapScale = _map.Display.mapScale;
filter.CancelTracker = _cancelTracker;
if (layer.FilterQuery != null)
{
filter.WhereClause = layer.FilterQuery.WhereClause;
if (layer.FilterQuery is IBufferQueryFilter)
{
ISpatialFilter sFilter = await BufferQueryFilter.ConvertToSpatialFilter(layer.FilterQuery as IBufferQueryFilter);
if (sFilter == null)
{
return;
}
filter.SpatialRelation = spatialRelation.SpatialRelationIntersects;
filter.Geometry = sFilter.Geometry;
}
if (layer.FilterQuery is ISpatialFilter)
{
//filter.FuzzyQuery = ((ISpatialFilter)layer.FilterQuery).FuzzyQuery;
filter.SpatialRelation = ((ISpatialFilter)layer.FilterQuery).SpatialRelation;
filter.Geometry = ((ISpatialFilter)layer.FilterQuery).Geometry;
}
}
// Erst nach dem Clonen anwenden!!!
//if (layer.FeatureRenderer != null && layer.FeatureRenderer.HasEffect(layer, _map))
//{
// layer.FeatureRenderer.PrepareQueryFilter(layer, filter);
//}
//if (layer.LabelRenderer != null && _useLabelRenderer)
//{
// layer.LabelRenderer.PrepareQueryFilter(_map.Display, layer, filter);
//}
IDisplay display = _map;
double refScale = display.refScale;
#region Layer Clonen
IFeatureRenderer renderer = null;
ILabelRenderer labelRenderer = null;
lock (lockThis)
{
// Beim Clonen sprerren...
// Da sonst bei der Servicemap bei gleichzeitigen Requests
// Exception "Objekt wird bereits an anderer Stelle verwendet" auftreten kann!
if (layer.FeatureRenderer != null && layer.FeatureRenderer.HasEffect(layer, _map))
{
if (layer.RequiresFeatureRendererClone(display))
{
renderer = clonedFeatureRenderer = (IFeatureRenderer)layer.FeatureRenderer.Clone(
new CloneOptions(display,
layer.UseWithRefScale(display),
maxRefScaleFactor: layer.MaxRefScaleFactor));
}
else
{
renderer = layer.FeatureRenderer;
}
}
if (layer.LabelRenderer != null && _useLabelRenderer)
{
if (layer.RequiresLabelRendererClone(display))
{
labelRenderer = clonedLabelRenderer =
(ILabelRenderer)layer.LabelRenderer.Clone(new CloneOptions(display,
layer.UseLabelsWithRefScale(display),
maxLabelRefscaleFactor: layer.MaxLabelRefScaleFactor));
}
else // Clone with null => simple clone
{
//display.refScale = 0;
labelRenderer = clonedLabelRenderer = (ILabelRenderer)layer.LabelRenderer.Clone(null);
//display.refScale = refScale;
}
}
}
#endregion
#region Prepare filter
// Prepare erst auf geclonte renderer anwenden!! (Threadsafe)
if (renderer != null && renderer.HasEffect(layer, _map))
{
renderer.PrepareQueryFilter(layer, filter);
}
if (labelRenderer != null && _useLabelRenderer)
{
labelRenderer.PrepareQueryFilter(_map.Display, layer, filter);
}
#endregion
using (IFeatureCursor fCursor = await fClass.GetFeatures(MapHelper.MapQueryFilter(filter)))
{
_map.FireOnUserInterface(false);
if (fCursor != null)
{
IFeature feature;
if (renderer != null)
{
renderer.StartDrawing(_map);
bool useCompostionModeCopy = layer is IFeatureLayerComposition &&
((IFeatureLayerComposition)layer).CompositionMode == FeatureLayerCompositionMode.Copy;
if (useCompostionModeCopy)
{
originalCanvas = _map.Display.Canvas;
compositionModeCopyBitmap = GraphicsEngine.Current.Engine.CreateBitmap(_map.Display.Bitmap.Width, _map.Display.Bitmap.Height, GraphicsEngine.PixelFormat.Rgba32);
compositionModeCopyCanvas = compositionModeCopyBitmap.CreateCanvas();
compositionModeCopyBitmap.MakeTransparent();
compositionModeCopyBitmap.SetResolution(_map.Display.Bitmap.DpiX,
_map.Display.Bitmap.DpiY);
((Display)_map.Display).Canvas = compositionModeCopyCanvas;
}
while ((feature = await fCursor.NextFeature()) != null)
{
if (_cancelTracker != null)
{
if (!_cancelTracker.Continue)
{
break;
}
}
renderer.Draw(_map, feature);
if (labelRenderer != null)
{
labelRenderer.Draw(_map, feature);
}
_counter.Counter++;
if (_isServiceMap == false)
{
if (_counter.Counter % 100 == 0)
{
_map.FireRefreshMapView();
}
}
}
}
else if (labelRenderer != null && _cancelTracker.Continue)
{
while ((feature = await fCursor.NextFeature()) != null)
{
if (_cancelTracker != null)
{
if (!_cancelTracker.Continue)
{
break;
}
}
labelRenderer.Draw(_map, feature);
_counter.Counter++;
}
}
if (labelRenderer != null)
{
labelRenderer.Release();
}
if (renderer != null)
{
renderer.FinishDrawing(_map, _cancelTracker);
}
if (compositionModeCopyCanvas != null && compositionModeCopyBitmap != null)
{
originalCanvas.DrawBitmap(compositionModeCopyBitmap,
new GraphicsEngine.CanvasRectangle(0, 0, compositionModeCopyBitmap.Width, compositionModeCopyBitmap.Height),
new GraphicsEngine.CanvasRectangle(0, 0, compositionModeCopyBitmap.Width, compositionModeCopyBitmap.Height),
opacity: (float)Math.Min(1, (100f - ((IFeatureLayerComposition)layer).CompositionModeCopyTransparency) / 100));
}
}
else
{
if (fClass is IDebugging && ((IDebugging)fClass).LastException != null)
{
throw ((IDebugging)fClass).LastException;
}
throw new Exception("Can't query feature class. Unknown error");
}
}
}
catch (Exception ex)
{
if (_map is IServiceMap && ((IServiceMap)_map).MapServer != null)
{
await((IServiceMap)_map).MapServer.LogAsync(
((IServiceMap)_map).Name,
"RenderFeatureLayer: " + ((layer != null) ? layer.Title : String.Empty),
loggingMethod.error,
ex.Message + "\n" + ex.Source + "\n" + ex.StackTrace);
}
if (_map != null)
{
_map.AddRequestException(new Exception("RenderFeatureLayerThread: " + ((layer != null) ? layer.Title : String.Empty) + "\n" + ex.Message, ex));
}
}
finally
{
if (clonedFeatureRenderer != null)
{
clonedFeatureRenderer.Release();
}
if (clonedLabelRenderer != null)
{
clonedLabelRenderer.Release();
}
if (originalCanvas != null)
{
((Display)_map.Display).Canvas = originalCanvas;
}
if (compositionModeCopyCanvas != null)
{
compositionModeCopyCanvas.Dispose();
compositionModeCopyCanvas = null;
}
if (compositionModeCopyBitmap != null)
{
compositionModeCopyBitmap.Dispose();
compositionModeCopyBitmap = null;
}
_map.FireOnUserInterface(false);
}
}