本文整理汇总了C#中DotSpatial.Controls.MapArgs.PixelToProj方法的典型用法代码示例。如果您正苦于以下问题：C# MapArgs.PixelToProj方法的具体用法？C# MapArgs.PixelToProj怎么用？C# MapArgs.PixelToProj使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DotSpatial.Controls.MapArgs的用法示例。
在下文中一共展示了MapArgs.PixelToProj方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: BuildPaths
private void BuildPaths(MapArgs e, IEnumerable<int> indices, out List<GraphicsPath> paths)
{
DateTime startTime = DateTime.Now;
paths = new List<GraphicsPath>();
Rectangle clipRect = ComputeClippingRectangle(e);
Extent drawExtents = e.PixelToProj(clipRect);
SoutherlandHodgman shClip = new SoutherlandHodgman(clipRect);
List<GraphicsPath> graphPaths = new List<GraphicsPath>();
Dictionary<FastDrawnState, GraphicsPath> borders = new Dictionary<FastDrawnState, GraphicsPath>();
for (int selectState = 0; selectState < 2; selectState++)
{
foreach (IPolygonCategory category in Symbology.Categories)
{
FastDrawnState state = new FastDrawnState(selectState == 1, category);
GraphicsPath border = new GraphicsPath();
borders.Add(state, border);
graphPaths.Add(border);
}
}
paths.AddRange(graphPaths);
List<ShapeRange> shapes = DataSet.ShapeIndices;
double[] vertices = DataSet.Vertex;
if (ProgressReportingEnabled)
{
ProgressMeter = new ProgressMeter(ProgressHandler, "Building Paths", indices.Count());
}
if (!DrawnStatesNeeded)
{
FastDrawnState state = new FastDrawnState(false, Symbology.Categories[0]);
foreach (int shp in indices)
{
if (ProgressReportingEnabled) ProgressMeter.Next();
ShapeRange shape = shapes[shp];
if (!shape.Extent.Intersects(e.GeographicExtents)) return;
if (shp >= shapes.Count) return;
if (!borders.ContainsKey(state)) return;
BuildPolygon(vertices, shapes[shp], borders[state], e, drawExtents.Contains(shape.Extent) ? null : shClip);
}
}
else
{
FastDrawnState[] states = DrawnStates;
foreach (GraphicsPath borderPath in borders.Values)
{
if (borderPath != null)
{
borderPath.FillMode = FillMode.Winding;
}
}
foreach (int shp in indices)
{
if (ProgressReportingEnabled) ProgressMeter.Next();
if (shp >= shapes.Count) return;
if (shp >= states.Length)
{
AssignFastDrawnStates();
states = DrawnStates;
}
if (states[shp].Visible == false) continue;
ShapeRange shape = shapes[shp];
if (!shape.Extent.Intersects(e.GeographicExtents)) return;
if (drawExtents.Contains(shape.Extent))
{
FastDrawnState state = states[shp];
if (!borders.ContainsKey(state)) return;
BuildPolygon(vertices, shapes[shp], borders[state], e, null);
}
else
{
FastDrawnState state = states[shp];
if (!borders.ContainsKey(state)) return;
BuildPolygon(vertices, shapes[shp], borders[state], e, shClip);
}
}
}
if (ProgressReportingEnabled) ProgressMeter.Reset();
TimeSpan interval = DateTime.Now - startTime;
totalTime += interval.TotalMilliseconds;
//Console.WriteLine("Total milliseconds: " + totalTime.ToString());
}示例2: BuildPaths
private void BuildPaths(MapArgs e, IEnumerable<IFeature> features, out List<GraphicsPath> borderPaths)
{
borderPaths = new List<GraphicsPath>();
Rectangle clipRect = ComputeClippingRectangle(e);
Extent drawExtents = e.PixelToProj(clipRect);
SoutherlandHodgman shClip = new SoutherlandHodgman(clipRect);
for (int selectState = 0; selectState < 2; selectState++)
{
foreach (IPolygonCategory category in Symbology.Categories)
{
// Determine the subset of the specified features that are visible and match the category
IPolygonCategory polygonCategory = category;
int i = selectState;
Func<IDrawnState, bool> isMember = state =>
state.SchemeCategory == polygonCategory &&
state.IsVisible &&
state.IsSelected == (i == 1);
var drawnFeatures = from feature in features
where isMember(DrawingFilter[feature])
select feature;
GraphicsPath borderPath = new GraphicsPath();
foreach (IFeature f in drawnFeatures)
{
BuildPolygon(DataSet.Vertex, f.ShapeIndex, borderPath, e,
drawExtents.Contains(f.Envelope) ? null : shClip);
}
borderPaths.Add(borderPath);
}
}
}示例3: BuildPaths
private void BuildPaths(MapArgs e, IEnumerable<int> indices, out List<GraphicsPath> paths)
{
paths = new List<GraphicsPath>();
var clipRect = ComputeClippingRectangle(e);
var drawExtents = e.PixelToProj(clipRect);
var shClip = new SoutherlandHodgman(clipRect);
var graphPaths = new List<GraphicsPath>();
var borders = new Dictionary<FastDrawnState, GraphicsPath>();
for (var selectState = 0; selectState < 2; selectState++)
{
foreach (var category in Symbology.Categories)
{
var state = new FastDrawnState(selectState == 1, category);
var border = new GraphicsPath {FillMode = FillMode.Winding};
borders.Add(state, border);
graphPaths.Add(border);
}
}
paths.AddRange(graphPaths);
var states = DrawnStates;
foreach (var shp in indices)
{
var state = states[shp];
if (!state.Visible) continue;
if (!borders.ContainsKey(state)) continue;
var shape = DataSet.GetShape(shp, false);
if (!shape.Range.Extent.Intersects(e.GeographicExtents)) continue;
BuildPolygon(shape.Range, borders[state], e,
drawExtents.Contains(shape.Range.Extent) ? null : shClip);
}
}