Simple Element Picker

The Element Picker tool is a very simple tool that inherits from the MicroStation Python DgnElementSetTool.

class ElementPicker(DgnElementSetTool):
    def __init__(self, toolId: int):
        """
        Initialize the ElementPicker.

        param toolId: The ID of the tool.
       """
        DgnElementSetTool.__init__(self, toolId: int) # C++ base's __init__ must be called.
        self.m_isDynamics = False
        self.m_ev = None
        self.m_self = self # Keep self-referenced. This variable is used by the base class DgnElementSetTool.

The purpose of Element Picker is trivial: when you pick an element it reveals information about that element in its _OnElementModify event …

    def _OnElementModify(self, eeh: EditElementHandle)->BentleyStatus:
        """
        Modify the given element if required.  For this element picker,
        we simply dump information about the element but make no change.

        :param eeh: The element you picked.
        :returns: The status of the modification.
        """
        description = get_element_description(eeh)
        print(f"{description} ID={eeh.GetElementId()}")
        MessageCenter.ShowInfoMessage(description, description, False)

LA Solutions Examples

You'll find Python examples written by LA Solutions on these pages, starting here.

Visit the LA Solutions' State Machine examples Download page.

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