Topography adjusting points

[3Pinter]

Hey guys,

I had to adjust to topography a my project. All the points had to be lowered by 200.

Getting the points, adjusting the z-values was no problem. Putting those new point values back to the original topo was though … I ended up with creating a new topo based upon the new point values.

Downside:
I have to remove the old topograhpy and therefor all my buildingpads are deleted as well.

Question:
Is there a way to adjust the points of a topography?

[Yna_Db]

A screenshot of your graph would help to quickly see what this issue is about. Did you also see what’s in this conversation?

Attach Topography to Floor

Hi Everyone. My first post - but have made extensive use of this forum thus far. What is the best solution to attach underlying Topography to a floor (representing a road). I’ve used the script mentioned here: http://dynamobim.org/forums/topic/attach-topography-to-rooffloorrampmodeletc/ TopographyToFace_jn.dyn (8.8 KB) But it does not work for curving geometries - as it creates a grid. I require it to follow the edges of the road - perhaps with an offset from the road? See my attached WIP …

[Einar_Raknes]

@3Pinter

Is there a way to adjust the points of a topography?

I haven’t tried it, but there seems to be a Revit API method for this:

ChangePointElevation Method

[3Pinter]

@Yna_Db see attached. Topograhpy by points creates a new topo and that’s what I currently have. But this doesn’t change the current topography.

@Einar_Raknes hmm interesting, will have a look at that.

[Yna_Db]

There is some additional information about “Editing a TopographySurface” in pages 68-70 of this document

[Dimitar_Venkov]

Not sure if this is still the case but last time it was not possible to edit a topo from within Dynamo:

Topo Add Points - API Guru help needed

Hi Ben, Would you mind posting your code on stackoverflow: http://stackoverflow.com/search?q=revit-api+revit I’ll have a look a bit later Edit: I did give it a try. Unfortunately, it seems that Dynamo is incapable of initiating a proper “TopographyEditScope”. The python interpreter says that the TES is active, but any attempt to modify the input topo, results in an error. For reference, similar code executed in RevitPythonShell, runs without a hitch: [2016-02-29_13-17-49]   I suggest yo…

[jacob.small]

May have to read the building pads and recreate those as well. I’d consider storing their points in a CSV so you don’t have to chase your tail too much.

[vanman]

Could this be of help from Karam Baki,

Theres a whole data thing before it to adjust topos to edges.

# Created By Karam Baki : karam@aecedx.com
# Enable Python support and load DesignScript library
# IMPORTANT : ALL DYNAMO DESIGN SCRIPT NODES ARE AS (dg)
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript import Geometry as dg

# EXTENSION Enable ToDSType
clr.AddReference('RevitNodes')
import Revit
clr.ImportExtensions(Revit.Elements)

# Enable Revit Elements
from Revit.Elements import *

# EXTENSION Enable Geometry Conversion Methods
clr.ImportExtensions(Revit.GeometryConversion)

# Enable Revit API
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
import Autodesk.Revit.DB
# Enable DocumentManager and TransactionManager
clr.AddReference('RevitServices')
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

# Enable ICollection List Translate
clr.AddReference("System")
import System.Collections.Generic
from System.Collections.Generic import List
doc = DocumentManager.Instance.CurrentDBDocument
uidoc = DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
app = uiapp.Application

class WarnSwallow(IFailuresPreprocessor):
	def PreprocessFailures(self, failuresAccessor):
		failuresAccessor.DeleteAllWarnings()
		return FailureProcessingResult.Continue

dataEnteringNode = IN
# Use UnwrapElement(IN[0]) When Translating From Dynamo to Revit
points = UnwrapElement(IN[0])
topo = UnwrapElement(IN[1])
minp = UnwrapElement(IN[2])
maxp = UnwrapElement(IN[3])
range = IN[4]
goodpts = UnwrapElement(IN[5])

if range > 0:

	count = 0
	bboxes = []
	for each in minp:
		bboxes.append(dg.BoundingBox.ByCorners(each, maxp[count]))
		count = count + 1

	allpts = topo.GetPoints()
	convpts = []
	for each in allpts:
		convpts.append(each.ToPoint())

	todelpts = []
	for eachbox in bboxes:
		for e in convpts:
			if dg.BoundingBox.Contains(eachbox,e):
				todelpts.append(e)
	uniquetodelpts = set(todelpts)
	todelpts = list(uniquetodelpts)

	todelxyz = []
	for e in todelpts:
		todelxyz.append(e.ToXyz())

	#Disposing Stuff
	for e in convpts:
		e.Dispose()

xyzconvgood = []
for each in goodpts:
	try:
		xyzconvgood.append(each.ToXyz())
	except:
		pass

failproc = WarnSwallow()
ilistofidsgood = List[Autodesk.Revit.DB.XYZ](xyzconvgood)
if range > 0:
	if len(todelxyz) > 0:
		ilistofids = List[Autodesk.Revit.DB.XYZ](todelxyz)
editsession = Architecture.TopographyEditScope(doc,"Topo K-Align")
editsessioncl = Architecture.TopographyEditScope(doc,"Topo Clean Up")

if range > 0:
	try:
		if len(todelxyz) > 0:
			Revit.Transaction.Transaction.End(doc)
			editsessioncl.Start(topo.Id)
			TransactionManager.Instance.EnsureInTransaction(doc)
			topo.DeletePoints(ilistofids)
			TransactionManager.Instance.ForceCloseTransaction()
			editsessioncl.Commit(failproc)
	except:
		pass
	Revit.Transaction.Transaction.End(doc)
	editsession.Start(topo.Id)
	TransactionManager.Instance.EnsureInTransaction(doc)
	topo.AddPoints(ilistofidsgood)
	TransactionManager.Instance.ForceCloseTransaction()
	editsession.Commit(failproc)
else:
	Revit.Transaction.Transaction.End(doc)
	editsession.Start(topo.Id)
	TransactionManager.Instance.EnsureInTransaction(doc)
	topo.AddPoints(ilistofidsgood)
	TransactionManager.Instance.ForceCloseTransaction()
	editsession.Commit(failproc)

OUT = topo