trigonometry
Help me re-understand how to use sine to oscillate a graphic in (Objective) C
I feel silly asking this but I seem to have forgotten how to use sine effectively. I\'m working on an iPad app so I\'m in ObjectiveC, and I\'m just trying to get a UIView to oscillate slowly. Just us[详细]
2023-01-31 17:39 分类:问答Rotate rectangle around a point
How would I get 4 points rotated a certain degrees around a pointer to form a rectangle? I can ro开发者_JS百科tate a point around a point, but I can\'t offset it to make a rectangle that isn\'t distor[详细]
2023-01-30 19:29 分类:问答Get points over the tangent circle(or oval) and balance poker chips on
I try to display some chips for a free poker game (HTML/Javascript client, python server) game. There are seats around the center of the table.[详细]
2023-01-30 13:23 分类:问答Heading from Point A to Point B in 2D space?
I\'m working on a project which requires me to calculate the heading from a variable point A to a variable point B in 0 - 360 degrees to let the object at point A face point B.[详细]
2023-01-30 08:07 分类:问答PHP: counting arcctg and ctg
is there any function in PHP which would g开发者_如何学Pythonet the cotangent and arccotangent of my number?[详细]
2023-01-28 08:56 分类:问答Splitting this into a x and y point?
Alright, so I\'m still trying to make my 开发者_开发百科players movements relative to the camera. I got a good answer here[详细]
2023-01-28 07:36 分类:问答iPhone trigonometry for dealing with orientation
I am trying to write an augmented reality application. I am using the compass, gyroscope, and GPS coordinates to create overlays. Everything is working great, except for when the user leaves portrait[详细]
2023-01-27 11:00 分类:问答Circle to Circle Segment Collision
I\'m struggling to find a rock solid solution to detecting collisions between a circle and a circle segment. Imagine a Field of View cone for a game enemy, with the circles representing objects of int[详细]
2023-01-26 12:21 分类:问答Pool/Billiards trig
ok i am trying to get a pool game going in c#/java. start = back of pool cue(x,y) end = front of pool cue(x,y)[详细]
2023-01-26 06:45 分类:问答Calculating distance using trigonometry in 3D
I\'m being quite dim - I can\'t figure out what should probably be a fairly trivial trig problem. Given cartesian coordinates (x, y, z), I would like to determine a new coordinate given a direction ([详细]
2023-01-26 03:43 分类:问答