pymel.core.modeling.angleBetween¶
- angleBetween(*args, **kwargs)¶
Returns the axis and angle required to rotate one vector onto another. If the construction history (ch) flag is ON, then the name of the new dependency node is returned.
Flags:
Long Name / Short Name Argument Types Properties caching / cch bool constructionHistory / ch bool Turn construction history on or off. If true, a dependency node will be created and its name is returned. Default:false euler / er bool return the rotation as 3 Euler angles instead of axis + angle frozen / fzn bool name / n unicode nodeState / nds int vector1 / v1 float, float, float vector to compute the rotation from vector1X / v1x float vector1Y / v1y float vector1Z / v1z float vector2 / v2 float, float, float vector to compute the rotation to Flag can have multiple arguments, passed either as a tuple or a list. vector2X / v2x float vector2Y / v2y float vector2Z / v2z float Derived from mel command maya.cmds.angleBetween
Example:
import pymel.core as pm # To find the euler angle between these two vectors. The result is three # angles in the current angular unit. In this example, the first vector # must be rotated -63.434949 degrees about the X axis, 16.60155 degrees # about the Y axis and -26.565051 degrees about the Z axis to achieve # the second vector. pm.angleBetween( euler=True, v1=(0.0, 1.0, 2.0), v2=(1.0, 2.0, 0.0) ) # Result: [-63.43494882292202, 16.601549599020235, -26.565051177077994] # # To find the angle between these two vectors. The result is an axis and # an angle (in the current angular unit). In this example, the first # vector must be rotated 66.421822 degrees about the axis # (-0.8728716, 0.4364358, -0.2182179) to achieve the second vector. pm.angleBetween( v1=(0.0, 1.0, 2.0), v2=(1.0, 2.0, 0.0) ) # Result: [-0.8728715609439698, 0.4364357804719849, -0.21821789023599245, 66.42182152179817] # # How to create a dependency node that calculates the angle between two # vectors. This example shows how the (x,z) position of a sphere # can be used to control the rotate factors (about y) of a cone shape. angleBtwnNode = pm.angleBetween(v1=(1, 0, 0), v2=(1, 0, 0), ch=True) sphere = pm.sphere() pm.move( 5, 0, 5, sphere[0] ) pm.connectAttr( sphere[0]+'.translateX', angleBtwnNode+'.vector2X' ) pm.connectAttr( sphere[0]+'.translateZ', angleBtwnNode+'.vector2Z' ) cone = pm.cone( ch=False ) convert = pm.createNode( 'unitConversion' ) pm.connectAttr( angleBtwnNode+'.eulerY', convert+'.input' ) pm.connectAttr( convert+'.output', cone[0]+'.rotateY' )