Hello Everyone,
I have a python question. I am writing a script that will read a CSV file into blender as a Nurbs Curve. After assigning a bevel object I will render a snap shot, I got that working well but now I want to read in a sequence of files and perform that same set of operations on each file, and then remove the curves I generated and make the next set. I got it to work by unlinking the curves after each file but this eats up a LOT of my memory as I do more and more files. My thought is to read in each file and simply edit the nurbs of the curves I originally created with the first file (they all have exactly the same number of points). But I am having a lot of trouble getting blender to edit the individual NURBS. I have named the curves Curve, Curve1…Curve10. Here is my code attempting to edit the NURBS. The result I get is the exact same image each time. (also see below)
file = open(path_file, ‘r’)
NURB_count=1
Curve_count=1
line = file.readline() #skip the first line
line = file.readline()
words = line.split(’,’)
cu= Curve.get(“Curve”) #get first curve
cu_nurb[0]=([float(words[0]),float(words[1]),0,50])
while file:
line = file.readline()
words = line.split(’,’)
n=len(words)
if n>1:
a=([float(words[0]),float(words[1]),0,50])
cu_nurb[NURB_count]=a #Add the New NURBS
NURB_count+=1
elif n<=1:
if words[0]==‘Start
‘: #signifies the start of the next curve object
cu_nurb.setFlagU(1)#make cyclical
cu.setFlag(15) #adjust visualization properties
cu.update()
scn= Scene.GetCurrent()
cu= Curve.get(“Curve” + str(Curve_count))
line = file.readline()
words = line.split(’,’)
#cu_nurb=cu[0]
cu_nurb[0]=([float(words[0]),float(words[1]),0,50]) # We must add with a point to #start with
NURB_count=1
context = scn.getRenderingContext()
enable seperate window for rendering
Render.EnableDispWin()
context.imageType = Render.JPEG
draw the image
context.render()
save the image to disk
to the location specified by RenderPath
by default this will be a jpg file
Window.RedrawAll()
context.saveRenderedImage(name_render[0] + ‘.jpg’)
scene = Scene.GetCurrent()
Now I understand that I should have the line cu_nurb=cu[0] to define cu_nurb to the specific curve but when I do that I get an error saying “Index Error:no Nurbs in this Curve”
I guess this was a really long winded way of asking how to resolve the above error.
Thought?
Thanks in advance
Bleiner