CGAL
Find Closest Line Between Points In 2D By Least Squares
Let’s create a few random points and use algorithm library CGAL and the visualization toolkit (VTK) to find and draw the closest line by a demo.
VTK
Simple Way To Fill The Hole On 3D Model
I want to fill the clipped model in a simple way.
For every single list, sort the points on the list and connect the last point and the first one if it’s opened. Take the first point on the list and find its two neighboring points, construct a triangle by them.
CGAL
CGAL: Useful Properties Of Matrix
We defined three different matrix A(m x n), B(n x r), and C(n x r), they satisfy distributivity of multiplication over addtion: A(B+C) = AB + AC.
CGAL
Build CGAL Libraries And Use It
Building CGAL libraries (non header-only mode)
Then we can build the project and install libraries.
Create a matrix and do transpose operation.
VTK
VTK : Find The Boundary Of Projected Points
I want to find the boundary of all projected points which are computed from the points on the 3D model. The red arrow in the following image represents the projected vector. I will project the original points on the 3D model to a plane.
VTK
VTK : Cut Volume By Plane
cut a volume by a plane and display the cut section. The left renderer contains the original volume object, and the right renderer shows the cross section in the window.
VTK
VTK – Set Clipping Range For Camera
I create two renderers that show the same 3D model. Make the camera in the right renderer linkage with the left one’s, that means we can get the same view in the right renderer when we modify the status of the camera of the left renderer.
Here is all information of implementations.
CPlusPlus
Universal Reference, std::move, std::array And Judge Data Type
The parameter reference is frequently used CPlusPlus program, C++11 support copy construction and move construction for a new object, Use typeinfo or boost::typeindex to judge the variable’s data type information, The container std::array help us to manage a fixed size array.
CGAL
Simple Demos About Using CGAL
Here are simple demos show how to use CGAL, the Computational Geometry Algorithms Library. I use cmake to manage these small projects.