Tessellate Files
Aruba
com.autodesk.objects.FilesObject
com.autodesk.objects.FilesObject
Tessellation Settings
Adaptive
Should the tesselation be adaptive.
Adaptive Settings
Chord Deviation
Minimum value = 0.001, Maximum value = 0.1
Maximum Chord Length
Minimum value = 0.01, Maximum value = 1.0
Normal tolerance
Minimum value = 5, Maximum value = 90
Non-Adaptive Settings
Number of samples
Minimum value = 4, Maximum value = 8
Sample Type
Entire Domain
G1 Segments
Per Span
File Type
Alias Wire File
Aruba Packet File
import os
from com.autodesk.workflows import Autodesk
from com.autodesk.objects import FilesObject
from java.io import File
def access(filename):
# os.access() isn't implemented in this version of jython so I
# have to work around this absence. This could be beefed up to
# support R_OK et al.
file = File(filename)
return file.canRead()
def tmpfile():
# And, not surprisingly os.tmpfile() is also not implemented so
# this code attempts to provide an alternative. However unlike
# a file returned by tmpfile() the file returned by this
# function is not automatically deleted when the last
# handle to it is deleted.
file = File.createTempFile("tempJournalFile", None)
return file.getPath()
def createJournalFile(srcFile, dstFile, adaptive, deviation, length, samples, type, tolerance):
jFileName = tmpfile()
jFile = open(jFileName, "w+b")
jFile.write("input \"" + srcFile + "\"\n")
jFile.write("create unloadfile\n")
jFile.write("create splinefit 1 1\n")
jFile.write("create tessellationsettings settings\n")
if adaptive:
jFile.write("edit tesselationsettings settings adaptive true\n")
jFile.write("edit tesselationsettings settings maxchordlength " + length.toString() + "\n")
jFile.write("edit tesselationsettings settings chorddeviation " + deviation.toString() + "\n")
jFile.write("edit tesselationsettings settings normaltolerance " + tolerance.toString() + "\n")
else:
jFile.write("edit tesselationsettings settings adaptive false\n")
jFile.write("edit tesselationsettings settings sampletype " + type + "\n")
jFile.write("edit tesselationsettings settings numsamples " + samples.toString() + "\n")
jFile.write("output \"" + dstFile + "\"\n")
jFile.close()
return jFileName
def tessellate(srcFile, dstFile, adaptive, deviation, length, samples, type, tolerance):
# Check that the given file actually exists.
if not access(srcFile):
print "Error: Unable to read " + srcFile + "."
return 0
settings = createJournalFile(srcFile, dstFile, adaptive, deviation, length, samples, type, tolerance)
if not access(settings):
print "Error: Unable to find " + settings + "."
return 0
response = Autodesk.tessellate(srcFile, dstFile, settings)
os.unlink(settings)
if response == None:
print "Error: No response from tessellator."
return 0
status = response.getJobExitValue()
if status == 2:
print "Error: Tessellation failed due to an internal error."
print response.getJobStdout()
print response.getJobStderr()
return 0
if status == 6:
print "Error: No license for tessellations."
return 0
if not access(dstFile):
print "Error: Failed to tessellate " + srcFile + "."
return 0
return 1
def tessellateFile(file, adaptive, deviation, length, samples, type, suffix, tolerance):
if file == None:
return None
src = file.getPath()
if not os.path.isfile(src):
return None
(root,ext) = os.path.splitext(src)
dst = root + suffix
if tessellate(src, dst, adaptive, deviation, length, samples, type, tolerance):
return dst
else:
return None
def main(input, adaptive, deviation, length, samples, type, suffix, tolerance):
if input != None:
base = input.getBaseDirectory()
if base == None:
baseStr = None
else:
baseStr = base.getPath()
files = input.getFiles()
results = []
if files != None:
for file in files:
if file != None:
result = tessellateFile(file, adaptive, deviation, length, samples, type, suffix, tolerance)
if result != None:
results.append(result)
if len(results) > 0:
return FilesObject(baseStr, results)
return None