Como posso calcular a média de múltiplas polilinhas?

Question

<\/HEAD>Olá, sou um usuário relativamente novo aqui da área de horticultura. Estou (tentando) mapear um pequeno sistema de trilhas em um parque arborizado usando o ArcGIS Pro. Pelo aplicativo desktop, criei um conjunto de dados com uma Polilinha e, usando o aplicativo Collector, capturei e salvei quatro linhas da mesma trilha. As Polilinhas estão todas a poucos metros umas das outras, mas eu gostaria de criar uma nova Polilinha como uma média das originais. Como mencionei, sou um usuário iniciante. Como posso fazer isso? <\/P> <\/P> Obrigado por qualquer orientação!<\/P> <\/P> -John <\/P><\/BODY><\/HTML>

Drew Flater · Answer

I have published a new Geoprocessing Sample tool for averaging lines. You can download it and see if it works for your use case.

https://www.arcgis.com/home/item.html?id=e47c400683ad443781660cef529a7637

CarlBeyerhelm · Answer

Here is code that constructs a line that is the “mean”, or “average”, of two similar lines.  A typical use case is creating an average trail alignment from two GPS tracks of the same trail.

Tool inputs are two feature classes that each contain a single polyline that is similar to the polyline in the companion feature class.  For example, one feature class might contain the north-bound GPS track of a trail, while the second feature class contains the south-bound GPS track of the same trail.

The feature classes can be of either .SHP or .GDB format, braided or unbraided, and with either a projected or GCS spatial reference.  The finished mean line will be written into the first input’s workspace, and will have the first input’s spatial reference.

See the illustrations below for examples of the result.  The code (as a txt file) is also attached, and could be adapted to batch processing.

MeanOfTwoLines.txt

MeanLine_NotBraided.png

MeanLine_Braided.png

SimonJackson · Answer

Anyone seen a recent approach to doing this in batch?