geom3d-2019.09.26
所属分类：图形图像处理
开发工具：matlab
文件大小：866KB
下载次数：1
上传日期：2020-10-09 13:56:11
上 传 者：
no name
说明： 用于3D几何处理的各种算法程序，效果很好，使用方便
(All kinds of algorithms used in 3D geometry processing have good effect and are easy to use)
文件列表:
CHANGELOG.md (1315, 2019-09-26)
demos-geom3d\demoDrawLine3d.m (962, 2019-09-26)
demos-geom3d\demoDrawPlane3d.m (1053, 2019-09-26)
demos-geom3d\demoDrawPoint3d.m (944, 2019-09-26)
demos-geom3d\demoDrawTubularMesh.m (1171, 2019-09-26)
demos-geom3d\demoGeom3d.m (2628, 2019-09-26)
demos-geom3d\demoInertiaEllipsoid.m (1343, 2019-09-26)
demos-geom3d\demoRevolutionSurface.m (2108, 2019-09-26)
demos-geom3d\demoTransformPoint3d.m (1166, 2019-09-26)
demos-geom3d\drawSoccerBall.m (3249, 2019-09-26)
demos-geom3d\html\demoDrawTubularMesh.html (5517, 2019-09-26)
demos-geom3d\html\demoDrawTubularMesh.png (4170, 2019-09-26)
demos-geom3d\html\demoDrawTubularMesh_01.png (5295, 2019-09-26)
demos-geom3d\html\demoDrawTubularMesh_02.png (6114, 2019-09-26)
demos-geom3d\html\demoDrawTubularMesh_03.png (8457, 2019-09-26)
demos-geom3d\html\demoDrawTubularMesh_04.png (30455, 2019-09-26)
demos-geom3d\html\demoGeom3d.html (8314, 2019-09-26)
demos-geom3d\html\demoGeom3d.png (2153, 2019-09-26)
demos-geom3d\html\demoGeom3d_01.png (3632, 2019-09-26)
demos-geom3d\html\demoGeom3d_02.png (5048, 2019-09-26)
demos-geom3d\html\demoGeom3d_03.png (5453, 2019-09-26)
demos-geom3d\html\demoInertiaEllipsoid.html (8676, 2019-09-26)
demos-geom3d\html\demoInertiaEllipsoid.png (3389, 2019-09-26)
demos-geom3d\html\demoInertiaEllipsoid_01.png (24215, 2019-09-26)
demos-geom3d\html\demoInertiaEllipsoid_02.png (37525, 2019-09-26)
demos-geom3d\html\demoInertiaEllipsoid_03.png (39250, 2019-09-26)
demos-geom3d\html\demoRevolutionSurface.html (10727, 2019-09-26)
demos-geom3d\html\demoRevolutionSurface.png (4807, 2019-09-26)
demos-geom3d\html\demoRevolutionSurface_01.png (63628, 2019-09-26)
demos-geom3d\html\demoRevolutionSurface_02.png (56820, 2019-09-26)
demos-geom3d\html\drawSoccerBall.html (10258, 2019-09-26)
demos-geom3d\html\drawSoccerBall.png (2409, 2019-09-26)
demos-geom3d\html\drawSoccerBall_01.png (6149, 2019-09-26)
demos-geom3d\html\drawSoccerBall_02.png (5022, 2019-09-26)
demos-geom3d\html\drawSoccerBall_03.png (5112, 2019-09-26)
demos-meshes3d\createTrefoilKnot.m (1056, 2019-09-26)
demos-meshes3d\demoClipMeshVertices.m (1594, 2019-09-26)
demos-meshes3d\demoConcatenateMeshes.m (978, 2019-09-26)
demos-meshes3d\demoCutMeshByPlane.m (2927, 2019-09-26)
demos-meshes3d\demoPolyhedra.m (1682, 2019-09-26)
... ...
Description of the geom3d library.
The aim of geom3d library is to handle and visualize 3D geometric primitives
such as points, lines, planes, polyhedra... It provides low-level functions
for manipulating 3D geometric primitives, making easier the development of more
complex geometric algorithms.
Some features of the library are:
- creation of various shapes (3D points, 3D lines, planes, polyhedra...)
through an intuitive syntax.
Ex: createPlane(p1, p2, p3) to create a plane through 3 points.
- derivation of new shapes: intersection between 2 planes, intersection between
a plane and a line, between a sphere and a line...
- functions for 3D polygons and polyhedra. Polyhedra use classical vertex-faces
arrays (face array contain indices of vertices), and support faces with any
number of vertices. Some basic models are provided (createOctaedron,
createCubeoctaedron...), as well as some computation (like faceNormal or
centroid)
- manipulation of planar transformation. Ex.:
ROT = createRotationOx(THETA);
P2 = transformPoint3d(P1, ROT);
- direct drawing of shapes with specialized functions. Clipping is performed
automatically for infinite shapes such as lines or rays. Ex:
drawPoint3d([50 50 25; 20 70 10], 'ro'); % draw some points
drawLine3d([X0 Y0 Z0 DX DY DZ]); % clip and draw straight line
Some functions require the geom2d package.
Additional help is provided in geom3d/Contents.m file, as well as summary files
like 'points3d.m' or 'lines3d.m'.
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