surface_curve::two_points
Creates a curve along the surface of a solid between two points.
Signatures
- curve two_points( solid solid, vector oP1_i, vector oP2_i )
Details
This function constructs a curve that follows the surface of a given solid from a start point oP1_i to an end point oP2_i.
The resulting curve approximates the shortest path on the surface within a guidance plane that gets autmatically defined by the input points and their normals.
Example
#import( "surface_curve.sps" )
// Input solid
solid bunny = mesh( "meshes/bunny.stl" )
make bunny
// Generate curve path on the solid's surface between two points p1 and p2
vector p1 = <[-0.06,0.045,0.042]>
vector p2 = <[0.03,0.1,0.04]>
curve path = surface_curve::two_points( bunny, p1, p2 )
// Visualize curve path by extrude along it
curve contour = <[0.0005, 0.0]> -> arc( <[0.0, 0.0]>, 2PI )
make rgb(0,0,255) >> extrusion( contour, path )
The resulting curve on the bunny's surface.
Note
If the input points are not on the surface, they will be projected onto it. The result is not a true geodesic, but follows a guidance plane as closely as possible.
Return value
A curve object representing the path along the surface between the two points.
Parameters
- solid
-
The solid whose surface the curve will follow.
- oP1_i
-
The start point of the curve. This point should be near or on the surface of solid.
- oP2_i
-
The end point of the curve. This point should be near or on the surface of solid.
