本文整理汇总了Python中Vector.dotProduct方法的典型用法代码示例。如果您正苦于以下问题：Python Vector.dotProduct方法的具体用法？Python Vector.dotProduct怎么用？Python Vector.dotProduct使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Vector的用法示例。
在下文中一共展示了Vector.dotProduct方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: elasticCollision
# 需要导入模块: import Vector [as 别名]
# 或者: from Vector import dotProduct [as 别名]
def elasticCollision(self,o):
"""
Elastic collision with another object
This changes the velocity of both objects
"""
normal = Vector( o.x - self.x, self.y - o.y )
normal.setVector( normal.getUnitVector() )
tangent = Vector( -normal.y, normal.x )
m1 = self.mass
m2 = o.mass
v1n = normal.dotProduct( self.velocity )
v1t = tangent.dotProduct( self.velocity )
v2n = normal.dotProduct( o.velocity )
v2t = tangent.dotProduct( o.velocity )
v1tPrime = v1t
v2tPrime = v2t
v1nPrime = (v1n*(m1-m2)+v2n*m2*2)/(m1+m2)
v2nPrime = (v2n*(m2-m1)+v1n*m1*2)/(m1+m2)
vectorV1nPrime = normal.multiply(v1nPrime)
vectorV1tPrime = tangent.multiply(v1tPrime)
vectorV2nPrime = normal.multiply(v2nPrime)
vectorV2tPrime = tangent.multiply(v2tPrime)
self.velocity = vectorV1nPrime.add(vectorV1tPrime).multiply(ELASTIC_COLLISION_DAMPENING)
o.velocity = vectorV2nPrime.add(vectorV2tPrime).multiply(ELASTIC_COLLISION_DAMPENING)示例2: Specular
# 需要导入模块: import Vector [as 别名]
# 或者: from Vector import dotProduct [as 别名]
def Specular(aNormal,aTrianglePoint):
eyeVector = [cameraX - aTrianglePoint[X],
cameraY - aTrianglePoint[Y],
cameraZ - aTrianglePoint[Z],
1.0 - aTrianglePoint[3]]
eyeVector = Vector.normalize(eyeVector)
lightVec = [lightPoint[X] - aTrianglePoint[X],
lightPoint[Y] - aTrianglePoint[Y],
lightPoint[Z] - aTrianglePoint[Z],
lightPoint[W] - aTrianglePoint[W]]
lightVec = Vector.normalize(lightVec)
#caculate the half vector
H = [lightVec[X] + eyeVector[X],
lightVec[Y] + eyeVector[Y],
lightVec[Z] + eyeVector[Z],
lightVec[W] + eyeVector[W]]
#now normalize and dot the half with the normal vec,
#use the shininess constant defined in IncludesAndConstants.py
H = Vector.normalize(H)
d = Vector.dotProduct(aNormal,H)
return math.pow(max(d,0),shininess)示例3: Diffuse
# 需要导入模块: import Vector [as 别名]
# 或者: from Vector import dotProduct [as 别名]
def Diffuse(aNormal,aTrianglePoint):
lightVec = [ lightPoint[X] - aTrianglePoint[X],
lightPoint[Y] - aTrianglePoint[Y],
lightPoint[Z] - aTrianglePoint[Z],
lightPoint[W] - aTrianglePoint[W]]
lightVec = Vector.normalize(lightVec)
#print(lightVec[X],lightVec[Y],lightVec[Z])
#print(Vector.length(lightVec))
aNormal = Vector.normalize(aNormal)
return max(Vector.dotProduct(lightVec,aNormal),0) 示例4: TestForCull
# 需要导入模块: import Vector [as 别名]
# 或者: from Vector import dotProduct [as 别名]
def TestForCull(aTriangle):
camVector = [IncludesAndConstants.lookPointX - IncludesAndConstants.cameraX,
IncludesAndConstants.lookPointY - IncludesAndConstants.cameraY,
IncludesAndConstants.lookPointZ - IncludesAndConstants.cameraZ,0]
camVector = Vector.normalize(camVector)
normal = [aTriangle.normal[X],aTriangle.normal[Y],aTriangle.normal[Z],0]
normal = Vector.normalize(normal)
if Vector.dotProduct(camVector,normal) <= 0.0:
return True
else:
return False示例5:
# 需要导入模块: import Vector [as 别名]
# 或者: from Vector import dotProduct [as 别名]
lookVector = Vector.normalize(lookVector)
rightVector = Vector.crossProduct([0,1,0,0],lookVector)
rightVector = Vector.normalize(rightVector)
upVector = Vector.crossProduct(lookVector,rightVector)
upVector = Vector.normalize(upVector)
CameraPos = [cameraX,cameraY,cameraZ,1]
viewMatrix = [[rightVector[X],upVector[X],lookVector[X],0],
[rightVector[Y],upVector[Y],lookVector[Y],0],
[rightVector[Z],upVector[Z],lookVector[Z],0],
[-(Vector.dotProduct(CameraPos,rightVector)),-(Vector.dotProduct(CameraPos,upVector)),-(Vector.dotProduct(CameraPos,lookVector)),1]]
ScreenMatrix = [[ViewportWidth/2,0,0,0],
[0,-ViewportHeight/2,0,0],
[0,0,1,0],
[ViewportWidth/2,ViewportHeight/2,0,1]]
#PROJECTION MATRIX
yScale = (math.cos(FOV/2)/math.sin(FOV/2))
xScale = yScale / aspectRatio
zf = farPlane/(farPlane - nearPlane)
zn = -(nearPlane * farPlane)/(farPlane-nearPlane)
projectionMatrix = [[xScale,0,0,0],