finding plane normal to a vector

[s...@weacceptyou.com]

Hello,

i was wondering if there was a quick way of finding the equation of a plane normal to a vector in maya

say the vector is (3,5,1) and passing through point (2,4,5)

i was wondering if there was maybe a math command that could make this easier


thanks,
Sam

[Robert White]

http://mathonline.wikidot.com/point-normal-form-of-a-plane

Should just need the normal and a point.

[jonn]

def getLocalVecToWorldSpace(node, vec=om.MVector.kXaxisVector):

matrix = om.MGlobal.getSelectionListByName(node).getDagPath(0).inclusiveMatrix()

vec = (vec * matrix).normal()

return vec

def axisVectorColinearity(node, vec):

vec = om.MVector(vec)

x = getLocalVecToWorldSpace(node, vec=om.MVector.kXaxisVector)

y = getLocalVecToWorldSpace(node, vec=om.MVector.kYaxisVector)

z = getLocalVecToWorldSpace(node, vec=om.MVector.kZaxisVector)

#return the dot products

return {'x': vec*x, 'y':vec*y, 'z':vec*z}

jnt = cmds.joint()

print axisVectorColinearity(jnt, [0,0,1])

在 2016年11月9日星期三 UTC+8上午5:19:14，s...@weacceptyou.com写道：

[sam williams]

cool thanks both for the help. this vector stuff is confusing

thanks,

Sam