@m_adam Thanks

Bone Display Set:Polygon,i can change CAJoint point postion in Point Edit Mode.But how can i get more info or change,i can not use the function of PointObject to get a CAJoint info.
How can I handle CAJoint like a PointObject?(My goal is to change the number of Points and Polygons of CAJoint.)
Thanks for any help!

try use GetDirty(DIRTYFLAGS_CACHE)，compare last dirty and current dirty

@m_magalhaes Thanks, hope to fix it in a future release.

In addition, I tested the User data and the same situation occurred. In automatic keyframe mode, even if the animation option is turned off, change the color data will still be recorded.

In my plugin, the Color gui animation option has been turned off in the .res file. The interface also shows that the animation cannot be made. Why is the keyframe still recorded in the auto keyframe mode? Is this a bug or my error?
Thanks for any help!

show in below image

@m_magalhaes Thanks,i will try to use C++

Hi,in another post I found a way to achieve my goal of converting the coordinate position to camera space and then scaling it to a small size so that he appears first.

this is new code:

def Draw(self,op, drawpass, bd, bh):
    
    
    if not op[c4d.S_MOTIONTRAIL_GTWO_DRAWENABLE]:
        return c4d.DRAWRESULT_OK
    #bd.SetMatrix_Matrix(None, c4d.Matrix())
    pmg = ~bd.GetMg()
    bd.SetMatrix_Camera()

    all_pos = self.parameters['all_pos']
    color_lis = self.parameters['color_lis']
    point_size = op[c4d.S_MOTIONTRAIL_GTWO_POINTSIZE]
    bd.SetPointSize(point_size)
    for per_pos,color in zip(all_pos,color_lis):
        bd.SetPen(color)
        cnt = len(per_pos)
        temp_lis = []
        for i in xrange(cnt-1):
            c = (pmg * per_pos[i]).GetNormalized() * 20
            f = (pmg * per_pos[i+1]).GetNormalized() * 20
            bd.DrawLine(c,f,c4d.NOCLIP_D)
            temp_lis.append(c)
        temp_lis.append(f)
        bd.DrawPoints(temp_lis)
    

    return c4d.DRAWRESULT_OK

why * 20 will work, * 1or 2 not work (c = (pmg * per_pos[i]).GetNormalized() * 20)?

I draw a line and some points, but I want him to show it in front of all the objects (my target: just like measure objects, you can always see them, even if you don't choose to measure objects, they are not covered by any objects)

• 1: When drawpass = DRAWPASS_HANDLES draw, I only select the object to achieve the first display, but I have to choose, this is not what I want.
• 2: when draw pass = DRAWPASS_OBJECT draw, I don't choose Show lines, but he will be covered by other objects

this is my code:

def Draw(self,op, drawpass, bd, bh):
    
    if drawpass == c4d.DRAWPASS_OBJECT:
        if not op[c4d.S_MOTIONTRAIL_GTWO_DRAWENABLE]:
            return c4d.DRAWRESULT_OK
        bd.SetMatrix_Matrix(None, c4d.Matrix())

        all_pos = self.parameters['all_pos']
        color_lis = self.parameters['color_lis']
        point_size = op[c4d.S_MOTIONTRAIL_GTWO_POINTSIZE]
        bd.SetPointSize(point_size)
        for per_pos,color in zip(all_pos,color_lis):
            bd.SetPen(color)
            cnt = len(per_pos)
            for i in xrange(cnt-1):
                bd.DrawLine(per_pos[i],per_pos[i+1],c4d.NOCLIP_D)
            bd.DrawPoints(per_pos,None)
    

    return c4d.DRAWRESULT_OK

Thanks for any help!

@m_magalhaes Thanks ,it works well，I modified the code according to your answer.

• 1 draw line not obscured by any object.solved

• 2 before i just draw line in MouseImput() (not add Draw() funtion),as above pic/code, Now i draw line in Draw(),it works well.solved