Hi pls help me with this. I just want to know which direction building is facing. I have thousands of building and i want that at once all buildings front direction should come out. The data i have are building foot print(.shp), 3d model (citygml) and road center line(.shp)
Question
Building facade(front) direction find out
+9- Safer
Hi @Abinash Rout, In your CityGML are you able to extract the <!--front surface--> tag? This isn't an area I'm an expert in but wondering if that would help. This documentation would be a good place to start as well.
+4- Contributor
Hi @Abinash Rout, In your CityGML are you able to extract the <!--front surface--> tag? This isn't an area I'm an expert in but wondering if that would help. This documentation would be a good place to start as well.
Thanks for replying but i just want to know if there is any transformer which will help me find direction like weather its facing south, north or south east etc.
+23- Contributor
Use BoundingBoxReplacer set to 2D Oriented Bunding Box and give a name to the angle attribute.
This will give you the direction of the longest side of the building, not the orientation of a specific facade.
Another method would be to use NeighborFinder with buildings as Base and roads as Candidates and use the _angle attribute to mao orientation.
+4- Contributor
Use BoundingBoxReplacer set to 2D Oriented Bunding Box and give a name to the angle attribute.This will give you the direction of the longest side of the building, not the orientation of a specific facade.
Another method would be to use NeighborFinder with buildings as Base and roads as Candidates and use the _angle attribute to mao orientation.
@caracadrian thank you so much.So from angle how will i identify the direction east, west or north-east etc.
@david_r can you pls help me with this its really urgent
Sorry, this is outside my area of expertise.
+4- Contributor
Use BoundingBoxReplacer set to 2D Oriented Bunding Box and give a name to the angle attribute.This will give you the direction of the longest side of the building, not the orientation of a specific facade.
Another method would be to use NeighborFinder with buildings as Base and roads as Candidates and use the _angle attribute to mao orientation.
@caracadrian pls explain the second method you suggested
+23- Contributor
@caracadrian pls explain the second method you suggested
Just input building footprints and road lines into NeighborFinder and use AttributeRangeMapper or AttributeManager to set geographic direction from angle value. I believe the angle is measured counterclockwise starting from the X axis - 45-135 degrees should mean north. Reading the Help helps NeighborFinder (safe.com)
+4- Contributor
+4- Contributor
@caracadrian pls explain the second method you suggested
@caracadrian Thank you so much forgot to thank you 😅 . achieved what i was looking for
+23- Contributor
@caracadrian pls explain the second method you suggested
Glad you found a solution. Happy to help!
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