3D software like GeoGebra - Mathematics Stack Exchange
2011年3月22日 · After you specified some 3d shapes you can also animate their properties by changing the number values. See description on page how to change values: holding down ALT key and using cursor keys. Also have a look at the gallery on the page to see what things you can achieve with this program. It also calculates basic values of the 3d objects.
How to determine the 3d shape formed by intersecting planes
2023年2月16日 · How can I optimally get the list of vertices for the 3d shape (a convex hull) formed by a set of intersecting planes in 3d space that contains all feasible solutions. Assuming that a 3d shape is formed by the intersection of the planes? Is there a name for the problem space/algorithm I'm seeking for? My background in this area is not very strong.
Equations for 3D objects - Mathematics Stack Exchange
2022年1月27日 · One common way to represent 3D shapes is by using implicit equations. ... and then the 3D object is the ...
calculus - How do I integrate this shape in 3D given as the area in ...
2016年4月3日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Center of Mass in 3D object? - Mathematics Stack Exchange
2014年8月31日 · How would I find the center of mass in a 3D object (a "spinning top" or "dreidel") that consists of a cylinder welded on top of a box welded on top of an upside down cone? Assume building material is all the same type. Here is a wireframe render of the object: And here are the dimensions as created: Top Cylinder: Radius=12, Height=50
Do 3D objects have perimeter? - Mathematics Stack Exchange
2021年3月25日 · I have tried reading on it however got conflicting information. There are some sources that say that 3D objects don't have a perimeter. It's only applicable to 2D objects. However in other sources I have seen people trying to calculate perimeter of a cube(3D) by measuring the length of each connecting line and adding them up.
How do I find the Intersection of two 3D triangles?
2015年4月5日 · $\begingroup$ Aha, never thought about doing the same-side-check with the triangle vertices and the planes. I am somewhat unfamiliar with some of these concepts though - can you expand on what you mean with "Now, compute the intersection (a two dimensional problem, the intersection is a segment determined by the intersection of the intersection of the …
linear algebra - How to find intersection of two lines in 3D ...
2011年3月22日 · Given two lines joining A,B and C, D in 3D how do I figure out if they intersect, where they intersect and the ratio along AB at which the intersection happens? I can quite hapilly work out the equation for the lines in different forms. I'm guessing that you need to change them to parametric form, equate the equations and do some algebra ...
Software to draw Geometry in 2D, 3D - Mathematics Stack Exchange
2018年10月8日 · For 3D Geometry: I have developed a free 3d drawing program that runs in modern browsers (html5). The English version is called Geoservant 3D, the original German version is called Geoknecht 3D. There you can specify 3d shapes (solid geometry) and animate them by changing their values.
Equation of a ... 3D object??? - Mathematics Stack Exchange
2015年6月11日 · We can represent 3D objects as a function of three variables. Here are some simple, finite geometric shapes, defined implicitly in Cartesian coordinates. The coefficients are used to scale the shape, and can be set to any value. You will end up with tall or flat prisms and pyramids by adjusting them away from their current values.