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Processing cloud of points into curve and surface

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1 Processing cloud of points into curve and surface
Laboratory 9. Processing cloud of points into curve and surface László Horváth university professor

2 László Horváth ÓU-IAM http://users.nik.uni-obuda.hu/lhorvath/
Contents Reverse engineering for the definition of surface using measured points . Gaining shape information from physical objects. Processing clouds of scanned points into curve and surface representations. . Filters. Meshing. Concept and types of scan. Laboratory task CS 9.1 Processing clouds of scanned points into curve and surface representations. László Horváth ÓU-IAM

3 László Horváth ÓU-IAM http://users.nik.uni-obuda.hu/lhorvath/
Reverse engineering for the definition of surface using measured points Physical shape Cloud of points Ordered mesh of points Generating curves for the definition of surface Digitalizing according to a program Generating boundary curves Generating surface László Horváth ÓU-IAM

4 Activating a portion of a cloud of points
László Horváth ÓU-IAM

5 Homogeneous filtering
The sphere passes over the cloud of points. All the points that are inside the sphere are then hidden or deleted. . László Horváth ÓU-IAM

6 László Horváth ÓU-IAM http://users.nik.uni-obuda.hu/lhorvath/
Adaptive filtering László Horváth ÓU-IAM

7 László Horváth ÓU-IAM http://users.nik.uni-obuda.hu/lhorvath/
Mesh a cloud of points László Horváth ÓU-IAM

8 Curve projection to a cloud of points
László Horváth ÓU-IAM

9 Definition of scan and curve in planar section
László Horváth ÓU-IAM

10 Definition of scan and curve in planar section
László Horváth ÓU-IAM

11 László Horváth ÓU-IAM http://users.nik.uni-obuda.hu/lhorvath/
Definition of multi-sections surface using a set of scan originated curves László Horváth ÓU-IAM

12 Finding free edges on a cloud of points
László Horváth ÓU-IAM

13 Definition of surface using cloud of points and curves
Source: László Horváth ÓU-IAM

14 László Horváth ÓU-IAM http://users.nik.uni-obuda.hu/lhorvath/
Laboratory task CS 9.1 Processing clouds of scanned points into curve and surface representations Students define projected curve, planar sections, free edges. László Horváth ÓU-IAM


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