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  • vtk类之vtkLineSource:用2点来创建线的poly data

    vtkLineSource 通过两点(x, y, z) 来创建一条线的poly data。

    基本方法:

      SetPoint1SetPoint2设置先的2个端点。

    virtual void SetPoint1 (double, double, double)
    virtual void SetPoint1 (double[3])
    virtual double * GetPoint1 ()
    virtual void GetPoint1 (double data[3])
     
     
    virtual void SetPoint2 (double, double, double)
    virtual void SetPoint2 (double[3])

    例子:

    #-*- coding: UTF-8 -*-
    #-------------------------------------------------------------------------------
    # Name:        lineActorFactory2 package
    # Purpose:     通过两个点,创建一条直线
    #
    # Author:      ankier
    #
    # Created:     08-12-2012
    # Copyright:   (c) ankier 2012
    # Licence:     <your licence>
    #-------------------------------------------------------------------------------
    
    from ActorFactory import ActorFactory 
    from vtk import *
    
    ## @brief 直线的actor factory
    class LineActorFactory2(ActorFactory):
        def __init__(self):
            ActorFactory.__init__(self)
            self.__LineSource = vtkLineSource()
           
        def __del__(self):
            del self.__LineSource
        
        ## @brief 更新线的poly data
        def __UpdateData(self):
            self.__LineSource.SetPoint1(0, 0, 0)
            self.__LineSource.SetPoint2(100, 200, 300)
            self.__LineSource.SetResolution(10)
        
        ## @brief 重写基类方法
        #  see    ActorFactory._MakeActors
        def _MakeActors(self): 
            self.__UpdateData()       
            polyDataMapper = vtkPolyDataMapper()
            polyDataMapper.SetInputConnection(self.__LineSource.GetOutputPort())
            actor = self._NewActor()
            actor.SetMapper(polyDataMapper)
            actor.GetProperty().SetColor((1, 0, 0.3))
            del polyDataMapper
            return [actor]
            
            

    运行效果图:

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  • 原文地址:https://www.cnblogs.com/ankier/p/2808807.html
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