Render Part C Assignment
In this studio we will evolve our code from Render_Part_B_Assignment to add new methods and a new class.
Continue editing files in the render/assignment directory.
Contents
Code to Implement
Bounds
file: | src/main/ruby/render/assignment/bounds.rb | ![]() |
class: | Bounds | |
superclass: | Object | |
methods: | initialize(min,max) min() min=(min) max() max=(max) |
Note: be sure to require_relative 'point2'.
Note: min and max should be instances of Point2
.
Note: You may wish to use Ruby's convenient Struct construct.
Transform
file: | src/main/ruby/render/assignment/transform.rb | ![]() |
class: | Transform | |
superclass: | Object | |
methods to evolve: | Ø | |
methods to add: | move(direction,amount) calculate_bounds() |
|
methods to remove: | Ø |
move
the move method will accept two parameters: direction and amount.
direction can be one of four symbols
:left :right :up :down
- left corresponds to translating along the negative x axis
- right corresponds to translating along the positive x axis
- down corresponds to translating along the negative y axis
- up corresponds to translating along the positive y axis
any other value for direction should raise an ArgumentError.
calculate_bounds
invoke calculate_local_bounds
and transform the returned bounds by x and y.
NOTE: calculate_local_bounds
is abstract. it must be defined by the subclasses.
Rectangle
file: | src/main/ruby/render/assignment/rectangle.rb | ![]() |
class: | Rectangle | |
superclass: | ColorTransform | |
methods to evolve: | Ø | |
methods to add: | calculate_local_bounds | |
methods to remove: | Ø |
calculate_local_bounds
Returns an instance of Bounds specified by min and max instances of Point2
.
NOTE: this method must be private.
Ellipse
file: | src/main/ruby/render/assignment/ellipse.rb | ![]() |
class: | Ellipse | |
superclass: | ColorTransform | |
methods to evolve: | Ø | |
methods to add: | calculate_local_bounds | |
methods to remove: | Ø |
calculate_local_bounds
Returns an instance of Bounds specified by min and max instances of Point2
.
NOTE: this method must be private.
EquilateralTriangle
file: | src/main/ruby/render/assignment/equilateral_triangle.rb | ![]() |
class: | EquilateralTriangle | |
superclass: | ColorTransform | |
methods to evolve: | Ø | |
methods to add: | calculate_local_bounds | |
methods to remove: | Ø |
calculate_local_bounds
Returns an instance of Bounds specified by min and max instances of Point2
.
NOTE: this method must be private.
BezierCurve
file: | src/main/ruby/render/assignment/bezier_curve.rb | ![]() |
class: | BezierCurve | |
superclass: | ColorTransform | |
methods to evolve: | Ø | |
methods to add: | calculate_local_bounds | |
methods to remove: | Ø |
calculate_local_bounds
Contemplate for a moment how you would build this method and then raise an error and move on.
NOTE: this method must be private.
def calculate_local_bounds raise StandardError.new("not yet implemented") end
Text
file: | src/main/ruby/render/assignment/text.rb | ![]() |
class: | Text | |
superclass: | ColorTransform | |
methods to evolve: | Ø | |
methods to add: | calculate_local_bounds | |
methods to remove: | Ø |
calculate_local_bounds
Contemplate for a moment how you would build this method and then raise an error and move on.
NOTE: this method must be private.
def calculate_local_bounds raise StandardError.new("not yet implemented") end
CircularSegment
file: | src/main/ruby/render/assignment/circular_segment.rb | ![]() |
class: | CircularSegment | |
superclass: | ColorTransform | |
methods to evolve: | Ø | |
methods to add: | calculate_local_bounds | |
methods to remove: | Ø |
calculate_local_bounds
Contemplate for a moment how you would build this method and then raise an error and move on.
NOTE: this method must be private.
def calculate_local_bounds raise StandardError.new("not yet implemented") end
Image
file: | src/main/ruby/render/assignment/image.rb | ![]() |
class: | Image | |
superclass: | Transform | |
methods to evolve: | Ø | |
methods to add: | calculate_local_bounds | |
methods to remove: | Ø |
calculate_local_bounds
Contemplate for a moment how you would build this method and then raise an error and move on.
NOTE: this method must be private.
def calculate_local_bounds raise StandardError.new("not yet implemented") end
CompositeTransform
file: | src/main/ruby/render/assignment/composite_transform.rb | ![]() |
class: | CompositeTransform | |
superclass: | Transform | |
methods to evolve: | Ø | |
methods to add: | calculate_local_bounds | |
methods to remove: | Ø |
calculate_local_bounds
Returns an instance of Bounds specified by min and max instances of Point2
.
NOTE: this method must be private.
Scene
file: | src/main/ruby/render/assignment/scene.rb | ![]() |
class: | Scene | |
superclass: | Object | |
methods to evolve: | calculate_bounds() | |
methods to add: | Ø | |
methods to remove: | Ø |
calculate_bounds
NOTE: this method must be public.
ConvexPolygon
file: | src/main/ruby/render/assignment/convex_polygon.rb | ![]() |
class: | ConvexPolygon | |
superclass: | ColorTransform | |
methods: | initialize(points, x: 0, y: 0, color: nil) render_transformed() calculate_local_bounds() |
initialize
Accept a required parameter points which is an array of Point2s.
Accept keyword parameters for x: 0, y: 0, and color: nil to the constructor and pass them to the superclass.
NOTE: Be sure to not override render. Implement the render_transformed method instead.
render_transformed
NOTE: this method must be private.
calculate_local_bounds
NOTE: this method must be private.
file to run: | src/main/ruby/render/assignment/convex_polygon.rb | ![]() |
Testing Your Solution
Unit Test
Ensure that all of the tests in the src/test/ruby/render/part_c
directory are passing.
Additionally, ensure that you are backwards compatible by checking the previous render studio tests.
Fall 2020 Note: Pay special attention to the tests in src/test/ruby/render/part_b_bare_bones
and src/test/ruby/render/part_b_composite_transform_scene
.
Fall 2020 Note: CompositeTransform
and Scene> were not tested in Render_Part_B_Assignment
Visual Comparison
Bare Bones
file to run:
src/test/ruby/render/part_c_bare_bones_image_diff/part_c_bare_bones_web_page_generator.rb
![Ruby logo.svg](https://upload.wikimedia.org/wikipedia/commons/thumb/7/73/Ruby_logo.svg/32px-Ruby_logo.svg.png)
Complete
file to run:
src/test/ruby/render/part_c_complete_image_diff/part_c_complete_web_page_generator.rb
![Ruby logo.svg](https://upload.wikimedia.org/wikipedia/commons/thumb/7/73/Ruby_logo.svg/32px-Ruby_logo.svg.png)