static bool Snap(List <Snapline> input, List <Snapline> map, double accuracy,
out List <Snapline> drawLines, out double delta)
{
delta = double.MaxValue;
drawLines = null;
foreach (var inputLine in input)
{
foreach (var mapLine in map)
{
if (Math.Abs(mapLine.Offset - inputLine.Offset) <= accuracy)
{
if (!inputLine.RequireOverlap && !mapLine.RequireOverlap ||
Math.Max(inputLine.Start, mapLine.Start) < Math.Min(inputLine.End, mapLine.End))
{
if (mapLine.Group == inputLine.Group)
{
delta = mapLine.Offset - inputLine.Offset;
}
}
}
}
}
if (delta == double.MaxValue)
{
return(false);
}
var offsetDict = new Dictionary <double, Snapline>();
foreach (var inputLine in input)
{
inputLine.Offset += delta;
foreach (var mapLine in map)
{
if (inputLine.Offset == mapLine.Offset)
{
var offset = mapLine.Offset;
Snapline drawLine;
if (!offsetDict.TryGetValue(offset, out drawLine))
{
drawLine = new Snapline();
drawLine.Start = double.MaxValue;
drawLine.End = double.MinValue;
drawLine.DrawOffset = mapLine.DrawOffset;
offsetDict[offset] = drawLine;
}
drawLine.Offset = offset;
drawLine.Start = Math.Min(drawLine.Start, Math.Min(inputLine.Start, mapLine.Start));
drawLine.End = Math.Max(drawLine.End, Math.Max(inputLine.End, mapLine.End));
}
}
}
drawLines = offsetDict.Values.ToList();
return(true);
}
static bool Snap(List<Snapline> input, List<Snapline> map, double accuracy,
out List<Snapline> drawLines, out double delta)
{
delta = double.MaxValue;
drawLines = null;
foreach (var inputLine in input) {
foreach (var mapLine in map) {
if (Math.Abs(mapLine.Offset - inputLine.Offset) <= accuracy) {
if (!inputLine.RequireOverlap && !mapLine.RequireOverlap ||
Math.Max(inputLine.Start, mapLine.Start) < Math.Min(inputLine.End, mapLine.End))
{
if (mapLine.Group == inputLine.Group)
delta = mapLine.Offset - inputLine.Offset;
}
}
}
}
if (delta == double.MaxValue) return false;
var offsetDict = new Dictionary<double, Snapline>();
foreach (var inputLine in input) {
inputLine.Offset += delta;
foreach (var mapLine in map) {
if (inputLine.Offset == mapLine.Offset) {
var offset = mapLine.Offset;
Snapline drawLine;
if (!offsetDict.TryGetValue(offset, out drawLine)) {
drawLine = new Snapline();
drawLine.Start = double.MaxValue;
drawLine.End = double.MinValue;
offsetDict[offset] = drawLine;
}
drawLine.Offset = offset;
drawLine.Start = Math.Min(drawLine.Start, Math.Min(inputLine.Start, mapLine.Start));
drawLine.End = Math.Max(drawLine.End, Math.Max(inputLine.End, mapLine.End));
}
}
}
drawLines = offsetDict.Values.ToList();
return true;
}