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16 lines
455 B
Crystal
16 lines
455 B
Crystal
require "./spec_helper"
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require "../src/3d/*"
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describe "line_intersects_plane" do
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it "intersects a plane at a known point" do
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line_start = Vec3d.new(0.0, 0.0, -5.0)
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line_end = Vec3d.new(0.0, 0.0, 5.0)
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plane_normal = Vec3d.new(0.0, 0.0, 1.0)
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plane_point = Vec3d.new(0.0, 0.0, 0.0)
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intersect = Vec3d.line_intersects_plane(plane_point, plane_normal, line_start, line_end)
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intersect.should eq(Vec3d.new(0.0, 0.0, 0.0))
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end
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end
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