Created
July 3, 2020 11:38
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Geomerative Solid Text
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| # frozen_string_literal: true | |
| require 'picrate' | |
| require 'geomerative' | |
| # SolidText sketch, rubyists hate explicit get and set methods, using | |
| # JRuby convention to replace them | |
| class SolidText < Processing::App | |
| attr_reader :em | |
| def settings | |
| size(600, 400, P3D) | |
| smooth | |
| end | |
| def setup | |
| sketch_title 'Solid Text' | |
| RG.init(self) | |
| grp = RG.get_text('Depth!', data_path('FreeSans.ttf'), 50, CENTER) | |
| RG.polygonizer = RCommand::UNIFORMLENGTH | |
| RG.polygonizer_length = 1 | |
| @em = RExtrudedMesh.new(grp) | |
| end | |
| def draw | |
| background(100) | |
| lights | |
| translate(width / 2, height / 2, 200) | |
| rotate_y(millis / 2000.0) | |
| fill(255, 100, 0) | |
| no_stroke | |
| em.draw | |
| end | |
| end | |
| SolidText.new | |
| # Custom extrusion class, including Proxy to access App methods | |
| class RExtrudedMesh | |
| include Processing::Proxy | |
| attr_reader :mesh, :points_array, :depth | |
| def initialize(grp, dpth = 10) | |
| @depth = dpth | |
| @mesh = grp.to_mesh | |
| @points_array = grp.points_in_paths | |
| end | |
| def draw_face(strips, depth) | |
| strips.each do |strip| | |
| begin_shape(TRIANGLE_STRIP) | |
| strip.vertices.each do |point| | |
| vertex(point.x, point.y, depth / 2.0) | |
| end | |
| end_shape(CLOSE) | |
| end | |
| end | |
| def draw_sides(points_array, depth) | |
| points_array.each do |points| | |
| begin_shape(QUAD_STRIP) | |
| points.each do |point| | |
| vertex(point.x, point.y, depth / 2.0) | |
| vertex(point.x, point.y, -depth / 2.0) | |
| end | |
| end_shape(CLOSE) | |
| end | |
| end | |
| def draw | |
| strips = mesh.strips | |
| draw_face(strips, depth) | |
| draw_face(strips, depth * -1) | |
| draw_sides(points_array, depth) | |
| end | |
| end |
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