Animate drawing of a ruled surface?
- To: mathgroup at smc.vnet.net
- Subject: [mg122901] Animate drawing of a ruled surface?
- From: Dmichael <pwaslo at yahoo.com>
- Date: Tue, 15 Nov 2011 05:50:23 -0500 (EST)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
Hi,
I want to animate the drawing of a ruled surface.
So, for example, say I want to animate the drawing of a helix.
I create the surface with this command:
ParametricPlot3D[{u*Cos[v], u*Sin[v], (1/2)*v}, {u, -1, 1}, {v, 0, 2 \[Pi]}]
Then I want an animation of the surface being drawn as the line sweeps out the surface. So I try this which shows the line but doesn't animate the drawing of the surface.
Animate[ParametricPlot3D[{u*Cos[v], u*Sin[v], (1/2)*v}, {u, -4, 4}, PlotRange -> 6], {v, 0, 4 \[Pi]}]
Any ideas? Thanks!