import bpy

### DISOLVE ###

class Disolve_ring_edges(bpy.types.Operator):
    """Tooltip"""
    bl_idname = "object.disolve_ring_edges"
    bl_label = "Disolve"

    @classmethod
    def poll(cls, context):
        return context.active_object is not None

    def execute(self, context):
        bpy.ops.mesh.loop_multi_select(ring=True)
        bpy.ops.mesh.select_nth()
        bpy.ops.mesh.loop_multi_select(ring=False)
        bpy.ops.mesh.dissolve_edges()
        return {'FINISHED'}

### ORIGIN_TO_SELECTED ###

class Origin_to_selected(bpy.types.Operator):
    """Tooltip"""
    bl_idname = "object.origin_to_selected"
    bl_label = "Origin to selected"

    @classmethod
    def poll(cls, context):
        return context.active_object is not None

    def execute(self, context):

        original_type = bpy.context.area.type
        bpy.context.area.type = "VIEW_3D"
        bpy.ops.view3d.snap_cursor_to_active()
        bpy.context.area.type = original_type
        bpy.ops.object.editmode_toggle()
        bpy.ops.object.origin_set(type='ORIGIN_CURSOR', center='MEDIAN')
        bpy.ops.object.editmode_toggle()
        bpy.ops.mesh.select_all(action='DESELECT')
        return {'FINISHED'}

### PANEL ###

class View3DPanel(bpy.types.Panel):
    bl_label = "Анонче"
    bl_idname = "OBJECT_PT_hello"
    bl_space_type = 'PROPERTIES'
    bl_region_type = 'WINDOW'
    bl_context = "object"

    def draw(self, context):

        layout = self.layout

        row = layout.row()
        row.label(text="Ну как так то", icon='WORLD_DATA')

        row = layout.row()
        row.operator("object.disolve_ring_edges")

        row = layout.row()
        row.operator("object.origin_to_selected")


def register():
    bpy.utils.register_class(Disolve_ring_edges)
    bpy.utils.register_class(Origin_to_selected)
    bpy.utils.register_class(View3DPanel)


def unregister():
    bpy.utils.unregister_class(Disolve_ring_edges)
    bpy.utils.unregister_class(Origin_to_selected)
    bpy.utils.unregister_class(View3DPanel)


if __name__ == "__main__":
    register()



##    # test call
#    bpy.ops.object.simple_operator()