Cylinder#

[1]:

import fresnel
scene = fresnel.Scene()

The cylinder geometry defines a set of N spherocylinders. Each spherocylinder is defined by two end points and has its own radius, and end point colors.

[2]:

geometry = fresnel.geometry.Cylinder(scene, N=3)
geometry.material = fresnel.material.Material(color=fresnel.color.linear([0.25,0.5,0.9]),
                                              roughness=0.8)

Geometric properties#

points defines the end points of each cylinder.

[3]:

geometry.points[:] = [[[-5,-1,-1], [-2, 1, 1]],
                      [[1, -2, 1],[0, 2, -1]],
                      [[5, -1.5, 2], [3, 1.5, -2]]]

radius sets the radius of each spherocylinder.

[4]:

geometry.radius[:] = [0.5, 1.0, 1.5]

[5]:

scene.camera = fresnel.camera.Orthographic.fit(scene, view='front', margin=0.5)
fresnel.preview(scene)

[5]:

../../_images/examples_01-Primitives_01-Cylinder-geometry_8_0.png

Color#

color sets the color of the end points of each cylinder (when primitive_color_mix > 0). The color transitions at the midpoint.

[6]:

geometry.color[:] = [[[0.9,0,0], [0.9, 0, 0]],
                     [[0, 0.9, 0], [0, 0.9, 0.9]],
                    [[0.9, 0.9, 0], [0, 0, 0.9]]]
geometry.material.primitive_color_mix = 1.0

[7]:

fresnel.preview(scene)

[7]:

../../_images/examples_01-Primitives_01-Cylinder-geometry_11_0.png

Outlines#

Outlines are applied on the outer edge of the cylinder in the view plane.

[8]:

geometry.outline_width = 0.05

[9]:

fresnel.preview(scene)

[9]:

../../_images/examples_01-Primitives_01-Cylinder-geometry_14_0.png

This page was generated from a jupyter notebook. You can download and run the notebook locally from the fresnel-examples repository.