3D Model Training

Operator Function

Read pcd, stl, or ply files to generate 3D model files.

Parameter Introduction

Input Parameters

Parameter	Range	Default Value	Description	Illustration
File			Select path for pcd, stl, or ply files

Calculation Parameters

Parameter	Range	Default Value	Description	Image
Sampling Point Count		100000	Number of uniformly sampled output point cloud points
Downsampling	true/false	false
Voxel Side Length		0.001	Only required when Downsampling is enabled: Cube voxel side length for downsampling
Interior Point Removal	true/false	false	Interior point removal switch
Interior Point Removal Level	Low/Medium/High	Low	Only required when Interior Point Removal is enabled: Provides 3 removal levels: Low, Medium, High
Downsampling Rate	(0, 1)	0.040	Proportional coefficient when downsampling input scene point cloud. Larger value means fewer points in sampled point cloud. Range is (0, 1)
Angle Discretization Step	(0, 360) degrees	12.000	Parameter for discretizing angle features when calculating feature descriptors. Larger value means fewer angle feature intervals, making features less distinguishable; smaller value means more intervals but increases computation time. Unit is degrees, range is (0, 360) degrees
Distance Discretization Step	(0, 100)	0.005	Parameter for discretizing distances between points when calculating feature descriptors. Range is (0, 100)
Output Model File		Empty	Set model save path
Output Image	0-8	0	IM number for image output, used to display model point cloud image

Output Parameters

Name	Type	Range	Description
Result	bool	true/false	true for success false for failure
Warning	bool	true/false	true indicates there is a warning false indicates there is none
Message	string		Outputs success, error, or warning information
Time	float		Operator execution time, unit: ms

Exception Troubleshooting

No.	Exception Information	Corresponding Parameter	Solution
1	File parameter is empty		1. Check input file path, select correct path 2. Check output model path, select correct path
2	Permission denied		Create the folder or switch to a folder with read permissions
3	Cannot write to "{0}"	File Path	Check if file is being used by other software
4	Loaded {0} successfully	File Path	None
5	Failed to load PLY file		Check if PLY file format is standard format
6	Failed to generate mesh from STL file		1. Check file read permissions 2. Check if STL file is too large, causing insufficient memory
7	Invalid calculation parameters		Check downsampling voxel side length parameter; if equal to 0, modify to value greater than 0

Example Introduction

Engineering Design

1. Select the 3D Model Training tool.

Tool Usage

1. Select point cloud mesh file path.

2. Set parameters.

3. Click Test to check if the image window and parameters meet expectations.

4. If there are no issues, click Save, then run the operator in the run list to view the results in the corresponding IM.