select objects one by one

  • On 09/11/2016 at 07:08, xxxxxxxx wrote:

    Is it possible to select objects one by one?

    I want that because i want  the script to select 1st object,do something(a code which i will put there)
    than 2nd one - do that something,3rd and so one.

    Here is my problem:

    I have let's say a bunch of cubes and i want to transform in shapes like these ones

    I have this code for point selection by index

    import c4d
    #Welcome to the world of Python
    def main() :
        obj = op.GetObject()
        points =obj.GetPointS()
        for i in PointList :

    unfortunately this works now only for python tag,I understand that is better in this case to make it work through Script Manager,but i don't know how to make it work there
    Someone suggested that I would have to put these lines above the code

    objects = doc.GetActiveObjects(1)**

    for a in objects :**

    So the steps would be the script first to select the points 1 and 3,Weld them and then points 5 and 7,Weld them also

    But now it selects the points from all cubes and weld them all together,like this

    PS:Can I upload images here only by Url?

  • On 09/11/2016 at 11:35, xxxxxxxx wrote:

    It doesn't seem like the weld command can be called programmatically as it requires user input to decide which point "wins" in the welding. I've implemented what you described as a script that uses the Optimize command to get the same effect as the weld command.

    """Weld Cube Points   
    Welds cube points together.   
    Usage Instructions:   
    1. Create some cubes.   
    2. Make them editable   
    3. Run this script.   
    import c4d   
    def SquishPoints(cube) :   
        """Welds the top 4 points of a polygon Cube."""   
        if (cube is None) or (not cube.IsInstanceOf(c4d.Opolygon)) :   
        points = cube.GetAllPoints()   
        point_id_groups = [[1,3],[5,7]] # Split into sub-lists so each can be welded in turn.   
        # Go through each set of points to weld.   
        for point_id_group in point_id_groups:   
            # Weld command isn't easily called via script, so we'll move the points we want to weld   
            # to the same position, then call the Optimize command.   
            # Calculate the center of the points   
            point_position_sum = c4d.Vector(0.0)   
            for point_id in point_id_group:   
                point_position_sum += points[point_id]   
            number_of_points = len(point_id_group)   
            center_point = point_position_sum / number_of_points   
            # Move points to the center   
            for point_id in point_id_group:   
                points[point_id] = center_point   
        # Store the changed points   
    def main() :   
        # Get a list of active objects.   
        active_objects = doc.GetActiveObjects(flags=c4d.GETACTIVEOBJECTFLAGS_0)   
        # Start recording changes you'll later want to undo.   
        # Squish together the points for all selected objects   
        for obj in active_objects:   
            doc.AddUndo(c4d.UNDOTYPE_CHANGE, obj)   
        # Use the optimize command to weld them   
        c4d.CallCommand(14039, 14039) # Optimize...   
        # Let C4D know that something has happened and it should redraw.   
    if __name__=='__main__':   

  • On 09/11/2016 at 11:36, xxxxxxxx wrote:

    I've saved it as a GitHub Gist so it's easier to read:

  • On 09/11/2016 at 12:33, xxxxxxxx wrote:

    That's Awesome!!! Thank You Very Much!

    But can i ask you something more :)

    Can you do something like this

    or at least like this

    You know - I extruded the top polygon of the cube and then would follow the process from your script,obviously for right(different) points now - this is for the second image(simpler model)

    for the first image would be more steps:
    i selected left and right extruded polygons,disconnected them,
    then select the lower edges from these polygons,making the distance between them larger with scale tool
    after that,select the front and back edges from these polys and also make the same with scale tool

  • On 09/11/2016 at 12:36, xxxxxxxx wrote:

    You might want to look into c4d.utils.SendModelingCommand() to accomplish what you want.

  • On 09/11/2016 at 12:40, xxxxxxxx wrote:

    Ok Thank You again,I would look on this Command,but nothing promising from me,I'm very newbie

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