[Python]Fill in the code in wangle by python

node = hou.selectedNodes()[0]

geo = node.geometry()

--------------------------

--sample1).

[Hython]Shows a list of default path.

How to display a list of directories where Houdini reads for Python files by default.

>>> import sys

>>> a = sys.path

>>> for i in a:

...     print i

... 

C:/PROGRA~1/SIDEEF~1/HOUDIN~1.759/python27/lib/site-packages-ui-forced

C:/Users/user01/Documents/houdini18.5/python2.7libs   <------- I confirmed adding the directory.

[Hython] My shelf

◆◆◆◆New Tool◆◆◆◆

source_nodes = hou.selectedNodes()

for m in source_nodes:
    allsub_nodes = m.allSubChildren()
    for n in allsub_nodes:
        if n.type().name() == 'file':
            print n.path()
            print n.evalParm('file')
            print '----'

[Hython] Camera bake

https://www.sidefx.com/forum/topic/41427/?page=1#post-186000

[Hython] Auto cache output settings : ver1.1

ver1.1

-auto set up output path on "cache file" node

-auto create geometry node in ROP

--

★★feature

-Added a function to notify the status by color

-Check the ROP network exists under /obj, add the auto-creation function. Currently, I get an error if it doesn't exist.

-If I try to recreate the File cache with the same name, it will get an error unless you also delete the Geometry node in the ROP. I will automate it.

[DONE]-Currently, null names only accept combinations of three words, so I plan to improve this to make it easier to use.

-Eventually, it will be a library

-It will be improved to determine the output path from the Variables setting.

[Hython] Change a path on around alembic nodes

print "\n\n\n\n\n\n\n\n"
print "############################################################"
node = hou.pwd()
root = hou.node('/obj')
all_nodes = root.allSubChildren()

for n in all_nodes:
    if n.type().name() == 'alembicarchive' or n.type().name() == 'alembic':
        fp = n.evalParm('fileName')
        fps = fp.split("/")
        fpar = fps[-2:]
        if fpar[0] == 'alembic':
            fpn = '$CACHE/'+fpar[0]+'/'+fpar[1]
#            n.parm('fileName').set(fpn)
            print '<'+n.path()+'>'
            print fpn
            print n.evalParm('fileName')+'\n'

[Hython] File SOP Read Path

# python
path = ch(“../pathToYourFileNode/file”).split('/')
file = path.pop().split('.')

[Hython] Change a path Linux to Windows

import os

print "############################################################"

fp_bas = '/root/work/cache'
fp_tar = 'E:\work\cache'
fpn_tar = fp_tar.decode('ascii').replace(chr(92),'/')

root = hou.node('/')
all_nodes = root.allSubChildren()
for n in all_nodes:
    if n.type().name() == 'filecache':
        if not 'setLoader' in n.path():
            fp = n.evalParm('file')
            fpn = fp.replace(fp_bas,fpn_tar)
            n.parm('file').set(fpn)
         
            print n.path()
            print fpn
            print "----"



---------------------------
Reference HP: Thx a lot.

• Pythonで文字列を置換（replace, translate, re.sub, re.subn）https://note.nkmk.me/python-str-replace-translate-re-sub/
• Python で ¥ (円マーク)を直接指定して置換するには　http://yoshidabenjiro.hatenablog.com/entry/2016/12/24/232150
• ascii code backslash　https://theasciicode.com.ar/ascii-printable-characters/backslash-reverse-slash-ascii-code-92.html

[Hython] Pipeline tutorials

https://github.com/kiryha/Houdini/wiki/pipeline-tutorials

[Hython] Change the forced some parameter of mantra node

#Change the forced some parameter of mantra node
parent = hou.node("/obj/ropnet1")
setting1 = 'vm_samplesx'
setting2 = 'vm_samplesy'
setting3 = 'vm_maxraysamples'
for child in parent.children():
    param1 = child.parm(setting1)
    param1.set(4)
    
    param2 = child.parm(setting2)
    param2.set(4)
    
    param3 = child.parm(setting3)
    param3.set(6)
    
"""
   if sstring in child.name():
      param = child.parm("matte_objects")
      if param is None:
         pass
      else: 
         print searchStr
         print replStr
         param.set(temp)
"""

Reference HP; Thx a lot!
https://tosinakinwoye.com/2014/05/04/houdini-python-snippets/
https://qiita.com/7of9/items/5fb6d57ccb0ce9a47dd6

[Hython] Listing file cache paths

--listing file cache paths


------------------------------------------------
node = hou.pwd()
geo = node.geometry()

# Add code to modify contents of geo.
# Use drop down menu to select examples.
print "############################################################"
root = hou.node('/')
all_nodes = root.allSubChildren()
for n in all_nodes:
    if n.type().name() == 'file' or n.type().name() == 'filecache':
        if not 'setLoader' in n.path():
            print n.path()
            print n.evalParm('file')
            print "----"
       

[Hython] sevral py code

-----set_sim_out


import naming

source_node = hou.selectedNodes()[0]
output_driver = hou.node('/obj/ropnet1').createNode('geometry')
output_driver.moveToGoodPosition()
output_driver.setName(source_node.name())
output_driver.setParms({'soppath':source_node.path()})
naming.update_node_outpath(output_driver)

file_loader = source_node.parent().createNode('file')
file_loader.setInput(0, source_node, 0)
file_loader.moveToGoodPosition()
file_loader.setInput(0, None, 0)
file_loader.setName('loadback_' + source_node.name())
file_loader.parm('file').setExpression('chs("' + output_driver.path() + '/sopoutput")')

file_loader_time = source_node.parent().createNode('timeshift')
file_loader_time.setInput(0, file_loader, 0)
file_loader_time.moveToGoodPosition()
file_loader_null = source_node.parent().createNode('null')
file_loader_null.setInput(0, file_loader_time, 0)
file_loader_null.moveToGoodPosition()
#file_loader.null('OUT_' + source_node.name())


-----Blast Separate By Connectivity

update 03/Jul/2024:  Add "name" attribute.

node = hou.selectedNodes()[0]
geo = node.geometry()
count = 0
merge = node.parent().createNode('merge')


value = max(geo.pointIntAttribValues('class'))
print value
for count in range(value+1):
    blst_gp = "@class==" + str(count)
    blast = node.parent().createNode('blast')
    blast.setInput(0,node)
    blast.moveToGoodPosition()
    blast.parm('negate').set(True)
    blast.parm('grouptype').set(3)
    blast.parm('group').set(blst_gp)
 
    pack = node.parent().createNode('pack')
    pack.setInput(0,blast)
    pack.moveToGoodPosition()
 
    merge.setInput(count,blast,0)
merge.moveToGoodPosition()
merge.setDisplayFlag(True)



-----Blast Separate By Group

#node = hou.pwd()

#geo = node.geometry()

# Add code to modify contents of geo.

# Use drop down menu to select examples.

with hou.undos.group("Poly Reduce Groups"):

    #uses parent, otherwise recursion happens with python sop node

    node = hou.selectedNodes()[0]

    geo = node.geometry()

    groups = geo.primGroups()

    count = 0

    merge = node.parent().createNode('merge')

    for o in groups:

        #keep a single prim group

        blast = node.parent().createNode('blast')

        blast.setInput(0,node)

        blast.moveToGoodPosition()

        blast.parm('negate').set(True)

        blast.parm('group').set(o.name())

     

        pack = node.parent().createNode('pack')

        pack.setInput(0,blast)

        pack.moveToGoodPosition()

        

        codelist = []

        codelist.append('s@name = "%s";' % (o.name()))

        code = '\n'.join(codelist)

        

        wrang = node.parent().createNode('attribwrangle')

        wrang.parm('snippet').set(code)

        wrang.setInput(0,pack)

        wrang.moveToGoodPosition()

        

     

        merge.setInput(count,wrang,0)

   

        count = count + 1

    merge.moveToGoodPosition()

    merge.setDisplayFlag(True)

[Hython] Get upstream last number of node name.

---Get upstream last number of node name. 
node = hou.pwd()
geo = node.geometry()

# Add code to modify contents of geo.
# Use drop down menu to select examples.
   
thenumber = int(node.evalParm('opdigits'))
geo.addAttrib(hou.attribType.Point, "pos_id", thenumber)

[Hython] add & set attribute

-add point attribute
geo.addAttrib(hou.attribType.Point, "name", "")

-add Global or detail attribute
geo.addAttrib(hou.attribType.Global, "id", number)

-----------------------------------------
--add and set "name" attribute ex--
node = hou.pwd()
geo = node.geometry()

geo.addAttrib(hou.attribType.Point, "name", "")
for point in geo.points():
    point.setAttribValue("name", "piece" + str(point.number()))
-----------------------------------------
https://forums.odforce.net/topic/31951-add-name-attribute-via-python/

-----------------------------------------

###memo: my cord

node = hou.pwd()
geo = node.geometry()

# Add code to modify contents of geo.
# Use drop down menu to select examples.



#t = target_node.inputs()

#for i in t:
#    name = i.path()
#    get_name = name.split("_")
#    print name
#    geo = hou.node(name).geometry()

thenumber = int(node.evalParm('opdigits'))
#    geo.addAttrib(hou.attribType.Global, "pos_id", thenumber)
geo.addAttrib(hou.attribType.Point, "pos_id", thenumber)