目录
一, makeShared:使点云返回一个智能指针(深拷贝)
二,pcl::visualization::PCLVisualizer
viewer.setPointCloudRenderingProperties
setPointCloudRenderingProperties()
- /** \brief Copy the cloud to the heap and return a smart pointer
- * Note that deep copy is performed, so avoid using this function on non-empty clouds.
- * The changes of the returned cloud are not mirrored back to this one.
- * \return shared pointer to the copy of the cloud
- */
- inline Ptr
- makeShared () const { return Ptr (new PointCloud
(*this)); }
- bool pcl::visualization::PCLVisualizer::setPointCloudRenderingProperties (
- int property,
- double value,
- const std::string & id = "cloud",
- int viewport = 0
- )
Set the rendering properties of a PointCloud.
Parameters
| [in] | property | the property type |
| [in] | value | the value to be set |
| [in] | id | the point cloud object id (default: cloud) |
| [in] | viewport | the view port where the Point Cloud's rendering properties should be modified (default: all) |
注意事项:
设置属性前需要指定id,默认为“cloud”,如果没有设置“cloud”的id,或者其他id,将不起作用。
The list of properties can be found in pcl::visualization::LookUpTableRepresentationProperties.
Set of rendering properties.
| Enumerator | |
|---|---|
| PCL_VISUALIZER_POINT_SIZE | integer starting from 1 |
| PCL_VISUALIZER_OPACITY | Float going from 0.0 (transparent) to 1.0 (opaque) |
| PCL_VISUALIZER_LINE_WIDTH | Integer starting from 1. |
| PCL_VISUALIZER_FONT_SIZE | |
| PCL_VISUALIZER_COLOR | 3 floats (R, G, B) going from 0.0 (dark) to 1.0 (light) |
| PCL_VISUALIZER_REPRESENTATION | |
| PCL_VISUALIZER_IMMEDIATE_RENDERING | |
| PCL_VISUALIZER_SHADING | |
| PCL_VISUALIZER_LUT | colormap type pcl::visualization::LookUpTableRepresentationProperties |
| PCL_VISUALIZER_LUT_RANGE | two doubles (min and max) or PCL_VISUALIZER_LUT_RANGE_AUTO |
- /** \brief Add a text to screen
- * \param[in] text the text to add
- * \param[in] xpos the X position on screen where the text should be added
- * \param[in] ypos the Y position on screen where the text should be added
- * \param[in] fontsize the fontsize of the text
- * \param[in] r the red color value
- * \param[in] g the green color value
- * \param[in] b the blue color value
- * \param[in] id the text object id (default: equal to the "text" parameter)
- * \param[in] viewport the view port (default: all)
- */
- bool
- addText (const std::string &text, int xpos, int ypos, int fontsize, double r, double g, double b,
- const std::string &id = "", int viewport = 0);

如果云被成功分割,则函数返回彩色云。否则返回一个空指针。属于同一段的点具有相同的颜色。但是这个函数并不能保证不同的片段会有不同的颜色(这完全取决于RNG)。未在索引数组中列出的点将用红色表示。
在Visual Studio中使用Release模式运行速度更快,如果是为了运行程序,而不是调试,尽量选择Release模式,而不是Debug模式。
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