blog_iron3d

Angle between 2 vectors using MEL in Python # Node positions pos0= cmds.xform(node0, q=1, ws=1, t=1); pos1= cmds.xform(node1, q=1, ws=1, t=1); pos2= cmds.xform(node2, q=1, ws=1, t=1); # 2 Vectors. pos0-pos1 and pos0-pos2. import maya.api.OpenMaya as om; vec0= om.MVector(pos0); vec1= om.MVector(pos1); vec2= om.MVector(pos2); vecA= vec0-vec1; vecB= vec0-vec2; # Radian and degree import maya.mel as mm; melVecFormatStrA= "<<"+str(vecA[0])+","+str(vecA[1])+","+str(vecA[2])+">>"; melVecFormatStrB= "<<"+str(vecB[0])+","+str(vecB[1])+","+str(vecB[2])+">>"; rad= mm.eval("angle "+melVecFormatStrA+" "+melVecFormatStrB); deg= mm.eval("rad_to_deg("+str(rad)+")");

Getting Start Joint and End Joint from ikHandle node  ikH= "ikHandle"; startJoint= cmds.listConnections(ikH+".startJoint")[0]; endJoint= cmds.listConnections(cmds.listConnections(ikH+".endEffector"),s=1,d=0)[0];