revolve

FV = revolve(curve::Matrix{Real}; extent = 360, ang1=0, ang2=360, dir=:positive, n=[0.0,0.0,1.0], n_steps=0, closed=true, type=:quad)::GMTfv

Revolve curves to build surfaces.

This function rotates the curve curve by the angle extent, in the direction defined by direction (:positive, :negative, :both), around the vector n, to build the output mesh defined as a Faces-Vertices type.

Credit

This function is a modified version on the revolvecurve function from the Comodo.jl package.

Args

curve: A Mx3 matrix of points defining the curve to revolve. Each row is a point in 3D space.

Kwargs

extent: The extent of the revolved curve in degrees. Default is 360 degrees. But a finer control is possible using the ang1 and ang2 arguments.

ang1: The starting angle in degrees. Use this if start and end angles do not define a full revolution.

ang2: The ending angle in degrees.

dir: The direction of the revolved curve (:positive, :negative, :both).

n: The normal vector of the revolved curve.

n_steps: The number of steps used to build the revolved curve. If 0 (the default) the number of steps is computed from the curve point spacing.

closed: If true (the default), close the revolved curve at the start and end slice.

type: The type of faces used to build the revolved curve (:quad (default), :tri).

Returns

A GMTfv FacesVertices object.

Example

Create a surface by revolving a curve.

using GMT
	
ns=15; x=linspace(0,2*pi,ns).+1; y=zeros(size(x)); z=-cos.(x); curve=[x[:] y[:] z[:]];
FV = revolve(curve)
viz(FV)