public static void ClearLocations(INetworkCoverage networkCoverage, IBranch branch)
{
var locationsToRemove = networkCoverage.GetLocationsForBranch(branch);
if (locationsToRemove.Count != 0)
{
networkCoverage.Locations.RemoveValues(networkCoverage.Locations.CreateValuesFilter(locationsToRemove));
}
}
// Evaluate value at start and end of segment and interpolate the colors based on colors from theme.
// The 4 dictinctive cases below should be properly handled by coverage.Evaluate
//A 0 8 0
// [ ][ ][ ]
// interpolate - linear
// extrapolate - constant
// 0000012334566788877776665555444333322211110000000
//B 0 8 0
// [ ][ ][ ]
// interpolate - linear
// extrapolate - linear
// -10001233456678887777666555544433332221111000-1-1
//C 0 8 0
// [ ][ ][ ]
// interpolate - linear
// extrapolate - none
// ddd00123345667888777766655554443333222111100ddddd where d is default value for coverage
//D0 8 0
// [ ][ ][ ]
// interpolate - linear
// extrapolate - n.a.
// 0011233455667888777766565555444433332222111110000
// no interpolation; only locations are visible
// 0 8 0
// [ ][ ][ ]
// interpolate - constant
// 0000000008888888888888888888800000000000000000000
// 0 8 0
// [ ][ ][ ]
// interpolate - constant
// 0000000088888888888888888888888880000000000000000
private static bool RenderBranchSegments(IBranch branch, VectorLayer segmentsLayer, Graphics graphics, INetworkCoverage coverage, Dictionary <INetworkLocation, INetworkSegment> locationsToSegmentDictonary)
{
var knownBranchLocations = coverage.GetLocationsForBranch(branch);
if (knownBranchLocations.Count == 0) //nothing to draw
{
return(false);
}
var theme = segmentsLayer.Theme;
var defaultStyle = (theme != null) ? (VectorStyle)theme.GetStyle(coverage.DefaultValue) : segmentsLayer.Style;
var first = true;
var allBranchLocations = new List <INetworkLocation>();
var branchSegments = new List <INetworkSegment>();
foreach (var location in knownBranchLocations)
{
if (!locationsToSegmentDictonary.Keys.Contains(location))
{
continue;
}
var segment = locationsToSegmentDictonary[location];
branchSegments.Add(segment);
if (first)
{
allBranchLocations.Add(new NetworkLocation(segment.Branch, segment.Offset));
}
allBranchLocations.Add(location);
allBranchLocations.Add(new NetworkLocation(segment.Branch, segment.Offset + segment.Length));
first = false;
}
var allBranchLocationValues = coverage.EvaluateWithinBranch(allBranchLocations);
for (var i = 0; i < branchSegments.Count; i++)
{
var firstSegment = (i == 0);
var lastSegment = (i == branchSegments.Count - 1);
var segment = branchSegments[i];
var offset = knownBranchLocations[i].Offset;
DrawSegment(segmentsLayer, coverage, theme, i, allBranchLocationValues, firstSegment, lastSegment, graphics, segment, defaultStyle, offset);
}
return(true);
}
// Evaluate value at start and end of segment and interpolate the colors based on colors from theme.
// The 4 dictinctive cases below should be properly handled by coverage.Evaluate
//A 0 8 0
// [ ][ ][ ]
// interpolate - linear
// extrapolate - constant
// 0000012334566788877776665555444333322211110000000
//B 0 8 0
// [ ][ ][ ]
// interpolate - linear
// extrapolate - linear
// -10001233456678887777666555544433332221111000-1-1
//C 0 8 0
// [ ][ ][ ]
// interpolate - linear
// extrapolate - none
// ddd00123345667888777766655554443333222111100ddddd where d is default value for coverage
//D0 8 0
// [ ][ ][ ]
// interpolate - linear
// extrapolate - n.a.
// 0011233455667888777766565555444433332222111110000
// no interpolation; only locations are visible
// 0 8 0
// [ ][ ][ ]
// interpolate - constant
// 0000000008888888888888888888800000000000000000000
// 0 8 0
// [ ][ ][ ]
// interpolate - constant
// 0000000088888888888888888888888880000000000000000
private static void RenderBranchSegments(IBranch branch, VectorLayer segmentsLayer, Graphics graphics, INetworkCoverage coverage, Dictionary<INetworkLocation, INetworkSegment> locationsToSegmentDictonary)
{
var knownBranchLocations = coverage.GetLocationsForBranch(branch);
var theme = segmentsLayer.Theme;
var defaultStyle = (theme != null) ? (VectorStyle)theme.GetStyle(coverage.DefaultValue) : segmentsLayer.Style;
var first = true;
var allBranchLocations = new List<double>();
var branchSegments = new List<INetworkSegment>();
foreach (var location in knownBranchLocations)
{
if (!locationsToSegmentDictonary.Keys.Contains(location))
{
continue;
}
var segment = locationsToSegmentDictonary[location];
branchSegments.Add(segment);
if (first)
{
allBranchLocations.Add(segment.Chainage);
}
allBranchLocations.Add(location.Chainage);
allBranchLocations.Add(segment.Chainage + segment.Length);
first = false;
}
if (allBranchLocations.Any())
{
var allBranchLocationValues = coverage.EvaluateWithinBranch(branch, allBranchLocations.OrderBy(o => o), knownBranchLocations);
for (var i = 0; i < branchSegments.Count; i++)
{
var firstSegment = (i == 0);
var lastSegment = (i == branchSegments.Count - 1);
var segment = branchSegments[i];
var offset = knownBranchLocations[i].Chainage;
DrawSegment(segmentsLayer, coverage, theme, i, allBranchLocationValues, firstSegment, lastSegment,
graphics, segment, defaultStyle, offset);
}
}
else
{
// When no locations, we still render because there
// might be interpolation across nodes (ordered branches),
// otherwise it will be rendered at the default coverage value.
var values = new List<double>()
{
coverage.Evaluate(new NetworkLocation(branch, 0)),
coverage.Evaluate(new NetworkLocation(branch, branch.Length/2)),
coverage.Evaluate(new NetworkLocation(branch, branch.Length))
};
var segment = new NetworkSegment()
{
Branch = branch,
Chainage = 0.0,
Length = branch.Length,
Geometry = branch.Geometry
};
DrawSegment(segmentsLayer, coverage, theme, 0, values, true, true, graphics, segment, defaultStyle, branch.Length / 2);
}
}
// Evaluate value at start and end of segment and interpolate the colors based on colors from theme.
// The 4 dictinctive cases below should be properly handled by coverage.Evaluate
//A 0 8 0
// [ ][ ][ ]
// interpolate - linear
// extrapolate - constant
// 0000012334566788877776665555444333322211110000000
//B 0 8 0
// [ ][ ][ ]
// interpolate - linear
// extrapolate - linear
// -10001233456678887777666555544433332221111000-1-1
//C 0 8 0
// [ ][ ][ ]
// interpolate - linear
// extrapolate - none
// ddd00123345667888777766655554443333222111100ddddd where d is default value for coverage
//D0 8 0
// [ ][ ][ ]
// interpolate - linear
// extrapolate - n.a.
// 0011233455667888777766565555444433332222111110000
// no interpolation; only locations are visible
// 0 8 0
// [ ][ ][ ]
// interpolate - constant
// 0000000008888888888888888888800000000000000000000
// 0 8 0
// [ ][ ][ ]
// interpolate - constant
// 0000000088888888888888888888888880000000000000000
private static void RenderBranchSegments(IBranch branch, VectorLayer segmentsLayer, Graphics graphics, INetworkCoverage coverage, Dictionary <INetworkLocation, INetworkSegment> locationsToSegmentDictonary)
{
var knownBranchLocations = coverage.GetLocationsForBranch(branch);
var theme = segmentsLayer.Theme;
var defaultStyle = (theme != null) ? (VectorStyle)theme.GetStyle(coverage.DefaultValue) : segmentsLayer.Style;
var first = true;
var allBranchLocations = new List <double>();
var branchSegments = new List <INetworkSegment>();
foreach (var location in knownBranchLocations)
{
if (!locationsToSegmentDictonary.Keys.Contains(location))
{
continue;
}
var segment = locationsToSegmentDictonary[location];
branchSegments.Add(segment);
if (first)
{
allBranchLocations.Add(segment.Chainage);
}
allBranchLocations.Add(location.Chainage);
allBranchLocations.Add(segment.Chainage + segment.Length);
first = false;
}
if (allBranchLocations.Any())
{
var allBranchLocationValues = coverage.EvaluateWithinBranch(branch, allBranchLocations.OrderBy(o => o), knownBranchLocations);
for (var i = 0; i < branchSegments.Count; i++)
{
var firstSegment = (i == 0);
var lastSegment = (i == branchSegments.Count - 1);
var segment = branchSegments[i];
var offset = knownBranchLocations[i].Chainage;
DrawSegment(segmentsLayer, coverage, theme, i, allBranchLocationValues, firstSegment, lastSegment,
graphics, segment, defaultStyle, offset);
}
}
else
{
// When no locations, we still render because there
// might be interpolation across nodes (ordered branches),
// otherwise it will be rendered at the default coverage value.
var values = new List <double>()
{
coverage.Evaluate(new NetworkLocation(branch, 0)),
coverage.Evaluate(new NetworkLocation(branch, branch.Length / 2)),
coverage.Evaluate(new NetworkLocation(branch, branch.Length))
};
var segment = new NetworkSegment()
{
Branch = branch,
Chainage = 0.0,
Length = branch.Length,
Geometry = branch.Geometry
};
DrawSegment(segmentsLayer, coverage, theme, 0, values, true, true, graphics, segment, defaultStyle, branch.Length / 2);
}
}
