python script not working

Question

I am trying to find out why the python script that I wrote isnt working. I am trying to count  the number of stairs in a stairwell. I have two shapefiles and i wrote the script to run auto and process how many stairs there are.  if someone can help me with this I would appreciate it thanks.

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DanPatterson_Retired · Answer

Follow your other post

https://community.esri.com/thread/222977-arcpy-scripting-error-question

and use the code formatting link in there.

There are other unaddressed questions as well.

devarsimajumder2 · Answer

Here is the  code… thanks for your help

def createInternalParallelLines():

import libraries

import arcpy

set input/output parameters

polyFC = arcpy.GetParameterAsText(0)        # input polygons

outParallel = arcpy.GetParameterAsText(1)   # output parallel lines

lineSpacing = arcpy.GetParameterAsText(2)   # line spacing

buffDist = arcpy.GetParameterAsText(3)      # inner buffer distance

parse numbers from parameters

lineSpaceNum = float(lineSpacing.split(' ')[0])

buffNum = float(buffDist.split(' ')[0])

establish spatial reference

desc = arcpy.Describe(polyFC)

SR = desc.spatialReference

set overwrite environment

arcpy.env.overwriteOutput = True

arcpy.env.outputCoordinateSystem = SR

parallels = []

create hull rectangle to establish a rotated area of interest

coordSplit = row[0].hullRectangle.split(' ')

collect corner coordinates

coordList = arcpy.Array([arcpy.Point(coordSplit[0],coordSplit[1]),arcpy.Point(coordSplit[2],coordSplit[3]),arcpy.Point(coordSplit[4],coordSplit[5]),arcpy.Point(coordSplit[6],coordSplit[7]),arcpy.Point(coordSplit[0],coordSplit[1])])

create lines from hull rectangle

currentLines = []

for pointNum in range(0,4):

arcpy.Array()

hullRecLine = arcpy.Polyline(arcpy.A

loop through each input shape

for row in arcpy.da.SearchCursor(polyFC, ["SHAPE@"], spatial_reference=SR):

create inner buffer

polyBuff = row[0].buffer(buffNum * -1)

rray())

currentLines.append(hullRecLine)

compare first and second line to determine if first line is short or long

firstLong = 0

if currentLines[0].length < currentLines[1].length:

firstLong = 1

calculate number of points needed along short axis

numPoints = int(math.floor(currentLines[firstLong].length/lineSpaceNum))

create and join points to create parallel lines

for point in range(1,numPoints+1):

shortPoint1 = currentLines[firstLong].positionAlongLine(lineSpaceNum*point)

shortPoint2 = currentLines[firstLong + 2].positionAlongLine(currentLines[firstLong + 2].length - (lineSpaceNum*point))

parallel = arcpy.Polyline(arcpy.Array(), SR)

intersect parallel lines with buffer

parallelBuff = parallel.intersect(polyBuff,2)

parallels.append(parallelBuff)

write geometries to disk

arcpy.CopyFeatures_management(parallels, outParallel)

add to map

mxd = arcpy.mapping.MapDocument("CURRENT")

dataFrame = arcpy.mapping.ListDataFrames(mxd, "*")[0]

addLayer = arcpy.mapping.Layer(outParallel)

arcpy.mapping.AddLayer(dataFrame, addLayer)

del row

devarsimajumder2 · Answer

here is the code below. again im not too  familar with  python  so  i am asking for some help

def createInternalParallelLines():
 # import libraries
 import arcpy

# set input/output parameters
 polyFC = arcpy.GetParameterAsText(0) # input polygons
 outParallel = arcpy.GetParameterAsText(1) # output parallel lines
 lineSpacing = arcpy.GetParameterAsText(2) # line spacing
 buffDist = arcpy.GetParameterAsText(3) # inner buffer distance

# parse numbers from parameters
 lineSpaceNum = float(lineSpacing.split(' ')[0])
 buffNum = float(buffDist.split(' ')[0])

# establish spatial reference
 desc = arcpy.Describe(polyFC)
 SR = desc.spatialReference

# set overwrite environment
 arcpy.env.overwriteOutput = True
 arcpy.env.outputCoordinateSystem = SR

parallels = []
 # create hull rectangle to establish a rotated area of interest
 coordSplit = row[0].hullRectangle.split(' ')

# collect corner coordinates
 coordList = arcpy.Array([arcpy.Point(coordSplit[0],coordSplit[1]),arcpy.Point(coordSplit[2],coordSplit[3]),arcpy.Point(coordSplit[4],coordSplit[5]),arcpy.Point(coordSplit[6],coordSplit[7]),arcpy.Point(coordSplit[0],coordSplit[1])])

# create lines from hull rectangle
 currentLines = []
 for pointNum in range(0,4):
 arcpy.Array([coordList.getObject(pointNum),coordList.getObject(pointNum+1)])
 hullRecLine = arcpy.Polyline(arcpy.A
 # loop through each input shape
 for row in arcpy.da.SearchCursor(polyFC, ["SHAPE@"], spatial_reference=SR):

# create inner buffer
 polyBuff = row[0].buffer(buffNum * -1)
rray([coordList.getObject(pointNum),coordList.getObject(pointNum+1)]))
 currentLines.append(hullRecLine)

# compare first and second line to determine if first line is short or long
 firstLong = 0
 if currentLines[0].length < currentLines[1].length:
 firstLong = 1

# calculate number of points needed along short axis
 numPoints = int(math.floor(currentLines[firstLong].length/lineSpaceNum))

# create and join points to create parallel lines
 for point in range(1,numPoints+1):
 shortPoint1 = currentLines[firstLong].positionAlongLine(lineSpaceNum*point)
 shortPoint2 = currentLines[firstLong + 2].positionAlongLine(currentLines[firstLong + 2].length - (lineSpaceNum*point))
 parallel = arcpy.Polyline(arcpy.Array([shortPoint1.centroid,shortPoint2.centroid]), SR)

# intersect parallel lines with buffer
 parallelBuff = parallel.intersect(polyBuff,2)
 parallels.append(parallelBuff)

# write geometries to disk
 arcpy.CopyFeatures_management(parallels, outParallel)

# add to map
 mxd = arcpy.mapping.MapDocument("CURRENT")
 dataFrame = arcpy.mapping.ListDataFrames(mxd, "*")[0]
 addLayer = arcpy.mapping.Layer(outParallel)
 arcpy.mapping.AddLayer(dataFrame, addLayer)

del row