I am trying to convert some old code to start working in newer maya. It
seems the API has changed as it doesnt recognize intersect as a method
anymore. (
http://download.autodesk.com/us/maya/2009help/api/class_m_fn_mesh.html#4f5a5cc3ab4834b8045239a3438930dc
)
I would like to simply have a start position and direction. Then check if
that vector hits an object/polygon.
Below is how the code used to be structured
dag = nameToDag(mesh_name)
meshFn = om.MFnMesh()
meshFn.setObject( dag )
#This is the Ray being shot
raySource = om.MPoint(source[0])
rayDirection = om.MVector(source[1])
pointsValue = om.MPointArray()
polygonIdsValue = om.MIntArray()
spaceValue = 4
toleranceValue = 0.01
intersectionPoints = om.MFloatPointArray()
ret = om.MFnMesh.intersect(meshFn, raySource, rayDirection.normal(),
pointsValue, toleranceValue, spaceValue, polygonIdsValue )
Now I tried replacing it with:
meshFn.allIntersections( raySource, # raySource -
where we are shooting the ray from.
rayDirection, # rayDirection -
the direction in which we are shooting the ray.
None, # faceIds - here,
we do not care if specific faces are intersected)
None, # triIds - here,
we do not care if specific tri's are intersected)
False, # idsSorted -
here, we do not need to sort the faceId's or triId's indices.
om.MSpace.kTransform, # coordinate space - the
mesh's local coordinate space.
float(9999), # the range of the
ray.
False, #
testBothDirections - we are not checking both directions from the raySource
None, # accelParams -
this object is not applicable here.
False, # sortHits - we do
not need to sort the intersection points along the ray.
intersectionPoints, # hitPoints - the
array of points which have been intersected.
None, # hitRayParams -
we do not need any parametric distances of the points along the ray.
None, # hitFaces - we do
not need the id's of the faces intersected.
None, # hitTriangles -
we do not need the id's of the triangles intersected.
None, # hitBary1s - we
do not need the barycentric coordinates of the points within the triangles.
None, # hitBary2s - we
do not need the barycentric coordinates of the points within the triangles.
toleranceValue # tolerance - a
numeric tolerance threshold which allow intersections to occur just outside
the mesh.
based on the API example from here (
http://help.autodesk.com/view/MAYAUL/2015/ENU/?guid=__files_GUID_767D6572_552D_4D94_90E2_AE626F276D37_htm
)
but it is giving the error:
# Error: TypeError: file <maya console> line 100: function takes at most 11
arguments (17 given) #
Can anyone give a basic working example with a plane, or explain what the
problem is?
Thanks
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