Fairly new to Dynamo. I’m trying to figure out how exactly are the normals to curves decided by Dynamo. For Curve.Normal, the normals lie within the curves’ plane, but even in this scenario there can be two normals. E.g for a line along the X-axis, there could be normals along +Y or -Y at any parameter. I suspect it is related to the ‘direction’ of the curve but am unsure of what rules are being followed.
Additionally, using the same example of the line along +X, I’m also unclear on how Dynamo decides which planes the lines lie in. There could be two planes for the example above - XZ and XY, but dynamo seems to default to XY.
Could someone advise on what rules Dynamo follows to calculate the direction of the normals ? I’ve checked the dictionary but it is silent on this.