Here is a sample to draw an Arc and by using the center point of the circle, you can create a pie wedge. You are most likely going to have modify this code to fit your needs. You can create the wedge and then use an insert cursor to put the geometry into your feature class. I just save it to disk.
import math
import arcpy
def toCoord(centerX,centerY, radius, angle):
"""
Calculates the position on the arc
"""
radians = float((angle/180) * math.pi)
x = float(centerX + math.cos(radians) * radius)
y = float(centerY + math.sin(radians) * radius)
return [x, y]
def arc(centerX,centerY,radius,startAngle,endAngle,segments):
"""
centerX and centerY - X,Y center points of arc segment
radius - distance from center to edge of circle in map units
startAngle - starting position as degrees
endAngle ending position as degrees
segments - number of points to add in the Arc
returns: Array of Coordinates [[X1,X1],...,[Xn,Yn]]
"""
angle = startAngle
path = []
coords = toCoord(centerX,centerY,radius, angle)
path.append(coords)
while (angle <= endAngle):
coords = toCoord(centerX,centerY,radius, angle)
path.append(coords)
angle +=float(((endAngle-startAngle)/segments))
return path
centerPt = arcpy.Point(1.0,1.0)
arcPts = arc(centerPt.X,centerPt.Y,5.0,10.0,50.0,10)
array = arcpy.Array()
array.add(centerPt)
for pt in arcPts:
arcPt = arcpy.Point(pt[0],pt[1])
array.add(arcPt)
array.add(centerPt)
geom = arcpy.Polygon(array)
arcpy.CopyFeatures_management(geom,r"c:\temp\testArc.shp")
In addition to that, you might want to improve your error handling:
# Change this
arcpy.AddMessage("\n** Error **\n")
# To at least this:
arcpy.AddError(arcpy.GetMessages(2))
You might want to also consider adding a trace function to your except that will point out exactly what line is failing. See: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//002z0000000q000000Hope this helps.
