本文整理汇总了C#中Polygon.Simplify方法的典型用法代码示例。如果您正苦于以下问题：C# Polygon.Simplify方法的具体用法？C# Polygon.Simplify怎么用？C# Polygon.Simplify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Polygon的用法示例。
在下文中一共展示了Polygon.Simplify方法的2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: AddLineSegment
public void AddLineSegment(List<PolygonPoint> segment)
{
if (segment.Count < 2)
return; //can't add a single point.
//if both the start and end match, then we're bridging two together.
if (PolygonSegmentsByEnd.ContainsKey(segment[0]) && PolygonSegmentsByStart.ContainsKey(segment[segment.Count - 1]))
{
//get the segment that this one completes.
var startSegment = PolygonSegmentsByEnd[segment[0]];
var endSegment = PolygonSegmentsByStart[segment[segment.Count - 1]];
//remove both from both collections.
PolygonSegmentsByEnd.Remove(segment[0]);
PolygonSegmentsByStart.Remove(segment[segment.Count - 1]);
if (startSegment == endSegment) // We're completing a closed polygon.
{
//remove the shared point between both
startSegment.RemoveAt(startSegment.Count - 1);
//join them together
startSegment.AddRange(segment);
//remove one of the now same two points that are at either ends.
startSegment.RemoveAt(startSegment.Count - 1);
Polygon newPoly = new Polygon(startSegment);
newPoly.Simplify();
InsertIntoSet(CompletedPolygons, newPoly);
}
else
{
//remove the shared point between both
startSegment.RemoveAt(startSegment.Count - 1);
//join them together
startSegment.AddRange(segment);
//remove one of the now same two points that are at either ends.
startSegment.RemoveAt(startSegment.Count - 1);
//join them together
startSegment.AddRange(endSegment);
PolygonSegmentsByEnd[startSegment[startSegment.Count - 1]] = startSegment;
PolygonSegmentsByStart[startSegment[0]] = startSegment;
}
}
//If we have a segment who's end matches our beginning, we join them.
else if (PolygonSegmentsByEnd.ContainsKey(segment[0]))
{
//get the segment we need to join to
var oldSegment = PolygonSegmentsByEnd[segment[0]];
//Remove the old segment from that list.
//It will need a new address.
PolygonSegmentsByEnd.Remove(segment[0]);
//remove the last point from the old segment,
//because it's the same as the first point from the new one.
oldSegment.RemoveAt(oldSegment.Count - 1);
//now join them together.
oldSegment.AddRange(segment);
//finally add the newly joined segment to the list of ends.
PolygonSegmentsByEnd[oldSegment[oldSegment.Count - 1]] = oldSegment;
//The other list doesn't need changeing because we keep the start point.
}
//likewise, if we have a segment who's beginning matches our end.
else if (PolygonSegmentsByStart.ContainsKey(segment[segment.Count - 1]))
{
var oldSegment = PolygonSegmentsByStart[segment[segment.Count - 1]];
PolygonSegmentsByStart.Remove(segment[segment.Count - 1]);
segment.RemoveAt(segment.Count - 1);
oldSegment.InsertRange(0, segment);
PolygonSegmentsByStart[oldSegment[0]] = oldSegment;
}
//finally, if there's no existing connection, just add it to both lists.
else
{
PolygonSegmentsByStart[segment[0]] = segment;
PolygonSegmentsByEnd[segment[segment.Count - 1]] = segment;
}
}示例2: getPolygonBuffer
private static Polygon getPolygonBuffer(Polygon polygon, double distance, int pointsPerCircle, bool allowParallels)
{
polygon = (Polygon)polygon.Clone();
polygon.Weed(distance - distance * Math.Cos(Math.PI / pointsPerCircle));
polygon.Simplify();
Polygon boundaryBuffer = getBoundsBuffer(polygon, distance, pointsPerCircle, allowParallels);
ICollection<IGeometry> result;
if (distance > 0)
result = polygon.Union(boundaryBuffer);
else
result = polygon.Difference(boundaryBuffer);
foreach (IGeometry g in result)
if (g is Polygon)
return (Polygon)g;
return new Polygon();
}