01a956eef6
Added new tech tree layout implementation using Microsoft Automatic Graph Layouts Added some functionality to the database editor tools
69 lines
3 KiB
C#
69 lines
3 KiB
C#
using System;
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using Microsoft.Msagl.Core.Geometry.Curves;
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namespace Microsoft.Msagl.GraphmapsWithMesh
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{
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class MsaglUtilities
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{
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public static bool HittedSegmentComesFromLeft(LineSegment hittedSegment, LineSegment hittingSegment)
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{
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//going up
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if (hittingSegment.Start.X == hittingSegment.End.X &&
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hittingSegment.Start.Y <= hittingSegment.End.Y &&
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hittedSegment.End.X <= hittedSegment.Start.X) return true;
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//going left
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if (hittingSegment.Start.Y == hittingSegment.End.Y &&
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hittingSegment.Start.X >= hittingSegment.End.X &&
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hittedSegment.End.Y <= hittedSegment.Start.Y) return true;
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//going down
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if (hittingSegment.Start.X == hittingSegment.End.X &&
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hittingSegment.Start.Y >= hittingSegment.End.Y &&
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hittedSegment.End.X >= hittedSegment.Start.X) return true;
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//going right
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if (hittingSegment.Start.Y == hittingSegment.End.Y &&
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hittingSegment.Start.X <= hittingSegment.End.X &&
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hittedSegment.End.Y >= hittedSegment.Start.Y) return true;
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return false;
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}
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public static bool PointIsOnAxisAlignedSegment(LineSegment l, Core.Geometry.Point p)
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{
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if ((int)l.Start.X == (int)l.End.X && (int)l.Start.X == (int)p.X)
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{
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if (l.Start.Y < l.End.Y && l.Start.Y <= p.Y && p.Y <= l.End.Y) return true;
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if (l.Start.Y > l.End.Y && l.Start.Y >= p.Y && p.Y >= l.End.Y) return true;
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}
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if ((int)l.Start.Y == (int)l.End.Y && (int)l.Start.Y == (int)p.Y)
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{
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if (l.Start.X < l.End.X && l.Start.X <= p.X && p.X <= l.End.X) return true;
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if (l.Start.X > l.End.X && l.Start.X >= p.X && p.X >= l.End.X) return true;
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}
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/*
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double AB = Math.Sqrt((l.Start.X - l.End.X)*(l.Start.X - l.End.X) + (l.Start.Y - l.End.Y)*(l.Start.Y - l.End.Y));
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double AP = Math.Sqrt((l.Start.X - p.X) * (l.Start.X - p.X) + (l.Start.Y - p.Y) * (l.Start.Y - p.Y));
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double PB = Math.Sqrt((p.X - l.End.X) * (p.X - l.End.X) + (p.Y - l.End.Y) * (p.Y - l.End.Y));
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if (AB == AP + PB) return true;*/
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return false;
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}
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public static bool PointIsOnSegment(LineSegment l, Core.Geometry.Point p)
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{
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double AB = Math.Sqrt((l.Start.X - l.End.X) * (l.Start.X - l.End.X) + (l.Start.Y - l.End.Y) * (l.Start.Y - l.End.Y));
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double AP = Math.Sqrt((l.Start.X - p.X) * (l.Start.X - p.X) + (l.Start.Y - p.Y) * (l.Start.Y - p.Y));
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double PB = Math.Sqrt((p.X - l.End.X) * (p.X - l.End.X) + (p.Y - l.End.Y) * (p.Y - l.End.Y));
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if (AB < (AP + PB + .0001) && (AP + PB - .0001) < AB) return true;
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return false;
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}
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public static double EucledianDistance(double x1, double y1, double x2, double y2)
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{
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return Math.Sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2));
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}
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}
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}
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