Problem with combining shape extrusion and DistanceToTF

[kazlik]

Hello,
I have script to programmatically create intersections.
I use Shape Extrusion on road to end and start pavements, curbs and other things (cutout for intersection)
range.from and range.to are in meters.

Code:

        var shapeExtrusion = generator.AddModule<BuildShapeExtrusion>();
        shapeExtrusion.Resolution = 100;
        if (range != null && spline && (range.@from >= 0 || range.to >= 0))
        {
            var totalDistance = spline.TFToDistance(1);
            var tfFrom = 1 - (totalDistance - range.from) / totalDistance;
            shapeExtrusion.From = tfFrom;
            if (range.to > range.from)
            {
                var tfTo = 1 - (totalDistance - range.to) / totalDistance;
                shapeExtrusion.To = tfTo;
            }
        }

In intersection script I use:
DistanceStart and DistanceEnd is in meters. it has same values as range.from and range.to

Code:

            float distanceBetweenPoints = DistanceEnd - DistanceStart;
            float pointPart = 1f / (float) (PointsCount - 1);
            float[] pointsDistances = new float[PointsCount];
            for (int i = 0; i < PointsCount; i++)
            {
                pointsDistances[i] = Road.DistanceToTF(DistanceStart + distanceBetweenPoints * pointPart * i);
            }

Somewhere (near the road start) it looks great (sphere gameobjects are edge points of intersection)


Somewhere is offset more visible


Somewhere is offset very big


How to get same points for intersection script and for Shape Extrusion? I tried to turn cache off (everywhere), I'm using non-fast methods, but no success.
It's always offseted towards spline start.

[_Aka_]

Hi
I don't see what's wrong from looking at your code. How do you use pointsDistances after assigning its values?
If you can send a simplified version of your project I can run it and try to find what's missing

[kazlik]

I tried to dig once more deeper by myself and I found out splines were dirty. I'm creating intersections in same frame as splines.

Code:

spline.Refresh();

after spline creation helped to solve my problem.

[_Aka_]

Thanks for sharing the solution.
If and when you feel like it, please leave a review for the asset, that helps a lot.
Have a nice day