Oh, such a rocket science!
Many thanks Manuel, it seems it works super fine.
@m_magalhaes said in Store generator's property:
if op[ID_CHECKBOX]: bc = op.GetDataInstance() tag = bc.GetLink(ID_TAGLINK) if tag: print ("the tag is", tag) else: print ("this should never happen") else: bc = op.GetDataInstance() tag = bc.GetLink(ID_TAGLINK) if tag: print ("this should never happen") else: print ("there's no tag and box isn't checked")
Hi everyone,
I'm completely misunderstand how to store object's related data.
Read few posts, but there are common words only... Not sure there would be Read/Write/Copy overrides...
I'd like to have a selection tag on the Generator object based on UI's bool (CHECKBOX_ID).
If it's already exist - then use existing, otherwise add it automatically.
Link should be updated after save/open
Please point me to a solution, if any.
CHECKBOX_ID = 1001
SOME_ID = 5000
SOME_ID_TAG = 5001
class GeneratorPlugin(c4d.plugins.ObjectData):
def Init(self, op):
if op is None: raise RuntimeError("Failed to retrieves op.")
self.InitAttr(op, bool, CHECKBOX_ID)
op[CHECKBOX_ID] = True
bc = op[SOME_ID]
if bc is None:
print "Data Not Exist"
bc = c4d.BaseContainer()
bc[SOME_ID] = c4d.BaseContainer()
else:
print "Data Exist", bc.GetLink(SOME_ID_TAG)
op[SOME_ID] = bc
def GetVirtualObjects(self, op, hh):
if op is None or hh is None: raise RuntimeError("Failed to retrieves op or hh.")
tmpSel = c4d.BaseSelect()
# some calculations
tag = op[SOME_ID].GetLink(SOME_ID_TAG)
if op[CHECKBOX_ID]:
if not tag:
tag = c4d.SelectionTag(c4d.Tpolygonselection)
op.InsertTag(tag)
op[SOME_ID].SetLink(SOME_ID_TAG, tag)
tmpSel.CopyTo(tag.GetBaseSelect())
elif tag:
tag.Remove()
op[SOME_ID].RemoveData(SOME_ID_TAG)
Thamks @zipit, it works.
Just noticed it has to be adjusted with GetClone(), otherwise I'm getting "link is not alive" error
def get_field_layers(op):
""" Returns all field layers that are referenced in a field list.
"""
def flatten_tree(node):
""" Listifies a GeListNode tree.
"""
res = []
while node:
res.append(node.GetClone())
for child in node.GetChildren():
res += flatten_tree(child)
node = node.GetNext()
return res
# get the GeListHead for the FieldList
root = op.GetLayersRoot()
if root is None: return []
# Get the first node under the GeListHead
first = root.GetFirst()
if first is None: return []
@r_gigante Thanks man.
Can you please highlight proper way to check dirty of the layers?
right?
Generator doesn't receive updates if objects attached to a FieldList are updated (moved in space, or resized, or whatever)
Here's code
def GetDirty(self, op, doc):
if op is None or doc is None:
raise RuntimeError("Failed to retrieves op or doc.")
self.DIRTY_SELF = op.GetDirty(c4d.DIRTYFLAGS_MATRIX | c4d.DIRTYFLAGS_DATA | c4d.DIRTYFLAGS_DESCRIPTION)
if op[PLUGIN_FIELD] is not None: # PLUGIN_FIELD is as FIELDLIST defined in a res file
self.DIRTY_FIELDS = op[PLUGIN_FIELD].GetDirty(doc)
return self.DIRTY_SELF + self.DIRTY_FIELDS
op[PLUGIN_FIELD].GetDirty(doc) is only changed when properties changed inside of the FieldList (like opacity, blend-mode and so on).
But it updates if I'll disable and enable generator in Object Manager
Should I iterate through FieldList object and through child GroupField sub-objects to check if they are also dirty?
@m_adam said in DirectSample doc:
position, direction, uvw, allocatedCount, transform, fullCount
Thanks Maxime, this is works now. Much appreciated your details and solution.
PS: I noticed it's still necessary to create temporary Polygon Object, otherwise it wouldn't sample
tmpPoly = c4d.BaseObject(c4d.Opolygon)
tmpPoly.ResizeObject(pCount , 0)
tmpPoly.SetAllPoints(pPos)
I made a hack with temporary object
pPos = [c4d.Vector(-100, 0, -100), c4d.Vector(100, 0, -100), c4d.Vector(-100, 0, 100), c4d.Vector(100, 0, 100)]
pCount = len(pPos)
tmpPoly = c4d.BaseObject(c4d.Opolygon)
tmpPoly.ResizeObject(pCount , 0)
tmpPoly.SetAllPoints(pPos)
fieldInput = c4d.modules.mograph.FieldInput(pPos, pCount)
fieldInfo = c4d.modules.mograph.FieldInfo.Create(c4d.FIELDSAMPLE_FLAG_VALUE, None, doc, 0, 1, fieldInput, tmpPoly)
fieldOutput = c4d.modules.mograph.FieldOutput.Create(pCount, c4d.FIELDSAMPLE_FLAG_VALUE)
fields.DirectInitSampling(fieldInfo)
samplingSuccess = fields.DirectSample(fieldInput, fieldOutput, fieldInfo)
fields.DirectFreeSampling(fieldInfo)
print samplingSuccess, fieldOutput._value
Seems it works fine - prints True and list of values
Now I'm facing issue with sampling uvw as well:
pPos = [c4d.Vector(-100, 0, -100), c4d.Vector(100, 0, -100), c4d.Vector(-100, 0, 100), c4d.Vector(100, 0, 100)]
pCount = len(pPos)
uvw = [c4d.Vector(0, 0, 0), c4d.Vector(1, 0, 0), c4d.Vector(0, 1, 0), c4d.Vector(1, 1, 0)]
tmpPoly = c4d.BaseObject(c4d.Opolygon)
tmpPoly.ResizeObject(pCount , 0)
tmpPoly.SetAllPoints(pPos)
fieldInput = c4d.modules.mograph.FieldInput(position=pPos, allocatedCount=pCount, transform=op.GetMg(), uvw=uvw)
fieldInfo = c4d.modules.mograph.FieldInfo.Create(c4d.FIELDSAMPLE_FLAG_VALUE, None, doc, 0, 1, fieldInput, tmpPoly)
fieldOutput = c4d.modules.mograph.FieldOutput.Create(pCount, c4d.FIELDSAMPLE_FLAG_VALUE)
fields.DirectInitSampling(fieldInfo)
samplingSuccess = fields.DirectSample(fieldInput, fieldOutput, fieldInfo)
fields.DirectFreeSampling(fieldInfo)
print samplingSuccess, fieldOutput._value
prints False [0.0, 0.0, 0.0, 0.0]
Alternative code:
fieldInput = c4d.modules.mograph.FieldInput(pPos, pCount, op.GetMg(), pCount, None, uvw)
returns error:
StandardError: The arguments don't match any supplied constructors
Would appreciate your help
@m_magalhaes Thanks for reply.
I was mistaken with GetBlock() when wrote a post: it should be applied to the FieldOutput object.
I clear my issue now - I have custom point positions list (based on object's polygon center points), and I want to sample them.
But code below:
pPos = [c4d.Vector(-100, 0, -100), c4d.Vector(100, 0, -100), c4d.Vector(-100, 0, 100), c4d.Vector(100, 0, 100)]
fieldInput = c4d.modules.mograph.FieldInput(pPos, len(pPos))
fieldInfo = c4d.modules.mograph.FieldInfo.Create(c4d.FIELDSAMPLE_FLAG_VALUE, None, doc, 0, 1, fieldInput)
fieldOutput = c4d.modules.mograph.FieldOutput.Create(pCount, c4d.FIELDSAMPLE_FLAG_VALUE)
fields.DirectInitSampling(fieldInfo)
samplingSuccess = fields.DirectSample(fieldInput, fieldOutput, fieldInfo)
fields.DirectFreeSampling(fieldInfo)
print samplingSuccess, fieldOutput._value
prints False [0.0, 0.0, 0.0, 0.0]
I see that documentation FieldInfo says callers parameter is optional, but is it true?
Any recommendations?
Hi guys,
Trying to sample some points against the fields in R21. Referring to doc wrote this
if fields:
fieldInput = c4d.modules.mograph.FieldInput(pPos, pCount)
fieldInfo = c4d.modules.mograph.FieldInfo.Create(c4d.FIELDSAMPLE_FLAG_VALUE, None, doc, 0, 1, fieldInput, op)
fieldOutput = c4d.modules.mograph.FieldOutput.Create(pCount, c4d.FIELDSAMPLE_FLAG_VALUE)
fields.DirectInitSampling(fieldInfo)
fields.DirectSample(fieldInput, fieldOutput, fieldInfo)
fields.DirectFreeSampling(fieldInfo)
But it fires error:
TypeError: argument 2 must be c4d.modules.mograph.FieldOutputBlock, not c4d.modules.mograph.FieldOutput
Tried to change code to:
fields.DirectSample(fieldInput, fieldOutput, fieldInfo.GetBlock())
Code executes but output values are 0. Any recommendations?
@zipit thanks a lot, but based on c++ docs made this (seems there are just more checking):
def GetDDescription(self, node, description, flags) :
data = node.GetDataInstance()
if data is None or not description.LoadDescription(node.GetType()): return False
singleID = description.GetSingleDescID()
paramID = c4d.DescID(c4d.DescLevel(c4d.TESTPLUGIN_OFFSET))
if ( singleID is None or paramID.IsPartOf(singleID)[0] ):
bc = description.GetParameterI(paramID)
if (bc):
if data.GetLong(c4d.TESTPLUGIN_MODE) == TESTPLUGIN_MODE_DISTANCE: bc.SetLong(c4d.DESC_UNIT, c4d.DESC_UNIT_METER)
else: bc.SetLong(c4d.DESC_UNIT, c4d.DESC_UNIT_PERCENT)
return (True, flags | c4d.DESCFLAGS_DESC_LOADED)