search for: addnorm

...,0,1,0) # ... rotation angles theta = atan2(end[2],end[1]) # angle in yx-plane for Z-achses rotation phi = atan2(end[3],sqrt(end[1]^2+end[1]^2)) # angle in zx for Y-achses rotation # ... rotation c=rotate3d(c,phi,0,1,0) # Y-achses rotation c=rotate3d(c, -theta,0,0,1) # Z-achses rotation shade3d(addNormals(c), col=mycol) } open3d() vector3D(start=c(0,0,0),end=data[,1], 'red'); vector3D(start=c(0,0,0),end=data[,2],'green') arrow3d(c(0,0,0),data[,1],color='red');arrow3d(c(0,0,0),data[,2], color='green') axes3d(c('x','y','z'));title3d('...

For a paper dealing with generalized ellipsoids, I want to illustrate in 3D an ellipsoid that is unbounded in one dimension, having the shape of an infinite cylinder along, say, z, but whose cross-section in (x,y) is an ellipse, say, given by the 2x2 matrix cov(x,y). I've looked at rgl:::cylinder3d, but don't see any way to make it accomplish this. Does anyone have any ideas? thx,

There has been recent discussion about alternatives to the model-based standard error estimators for lm. While some people like the sandwich estimator and others don't, it is clear that neither estimator dominates the other for any sane loss function. It is also worth noting that the sandwich estimator is the default for t.test(). I think it would be useful for models using other

...move NT4 version check. oleaut32/tests: Basic test for invalid arguments in LoadTypeLib/LoadTypeLibEx. po: Update Russian translation. d3drm: Use consistent naming for mesh builder implementation pointers. d3drm: Implement AddVertex() for mesh builder. d3drm: Implement AddNormal() for mesh builder. shell32: Use IS_INTRESOURCE() to test context menu verb kind. d3drm: Make it possible to create faces with CreateObject(). d3drm: Make it possible to create mesh builder with CreateObject(). Owen Rudge (11): wsdapi: Implement AddNamespace. wsdapi...