polygonalIt is a common geometric structure that has a seemingly infinite variety of shapes, all of which can actually be made from a combination of several commonly used polygons.
This article introducesmanimThere are several drawing options available in theCommon Polygonsof the module.
-
Triangle: equilateral triangle -
Square: Square -
Rectangle: Rectangular -
RoundedRectangle: rectangle with rounded corners -
Star: a regular polygon with no intersecting lines, resembling a star with pointed corners.
1. Main parameters
Of these modules.TriangleAt its simplest, it has no parameters specific to itself.
SquareThere is one parameter:
| Parameter name | typology | clarification |
|---|---|---|
| side_length | float | Length of the sides of the square |
RectangleSlightly more complex, it can be evenly chunked to form tables.
| Parameter name | typology | clarification |
|---|---|---|
| height | float | Height of rectangle |
| width | float | Width of rectangle |
| grid_xstep | float | The width of each column after dividing the rectangle |
| grid_ystep | float | The height of each row after dividing the rectangle |
RoundedRectangleinherited fromRectangleYou can use theRectangleof all the parameters of the
In addition, it has a parameter specific to itself.
| Parameter name | typology | clarification |
|---|---|---|
| corner_radius | float | list[float] |
RoundedRectangleThe curvature of the four corners can be set uniformly or to different curvatures.
StarThe module is so named because it draws shapes that look like little stars.
| Parameter name | typology | clarification |
|---|---|---|
| n | int | How many pointed corners does a star shape have |
| outer_radius | float | Radius of the outer circle of the graph |
| inner_radius | float | Radius of the tangent circle of the graph |
| density | int | The density of the sharp corners of the graph, valid when inner_radius is set. |
| start_angle | float | The angle at which the vertex starts |
If you do not understand the meaning of these properties, it does not matter, later combined with examples to show the difference between the star-shaped graphic under different parameters.
It will be able to see a little more clearly.
2. Examples of use
2.1 Equilateral triangles and squares
equilateral triangleTriangleSort of the simplest polygon, it has no parameters, the
But it can be done byscale，rotateetc. to change its size and angle.
Triangle()
# Zoom in 1.5 times
Triangle().scale(1.5)
# Rotate 180 degrees
Triangle().rotate(PI)
squareSquareIt's also simple, it has only one parameter, setting the length of the sides of the square.
Square(side_length=0.5)
Square(side_length=1)
Square(side_length=2)
The above code is displayed as follows:
2.2. rectangular
rectangularRectangleIn addition to being able to set the widthwidthheightsheight, which can also be chunked.
The so-called chunking is done bygrid_xsteprespond in singinggrid_ystepThe parameter tells the rectangle to be split into smaller rectangles.
The width of each small rectangle iswidth / grid_xstepThe height isheight / grid_ystep。
Rectangle(width=2, height=1)
Rectangle(width=1, height=3)
# split2classifier for objects in rows such as words3Rectangle of columns
Rectangle(
width=3,
height=2,
grid_xstep=1,
grid_ystep=1,
)
2.3 Rounded rectangles
rectangle with rounded cornersRoundedRectanglerespond in singingrectangularRectangleThe difference is that it can set the curvature of the 4 corners.
Rectanglehas the parameter thatRoundedRectanglecan also be used, including the parameters for chunking.
# 4 corners have the same curvature
RoundedRectangle(
corner_radius=0.4,
)
# Same curvature on the diagonal
RoundedRectangle(
corner_radius=[0.2, 0.6], ) # Same diagonal curvature RoundedRectangle(
)
# All 4 corners have different curvatures
RoundedRectangle(
corner_radius=[0.1, 0.6, 0.3, 0.9], ) # The 4 corners have different curvatures.
)
2.4. stars
star polygonStarIt is a special type of concave polygon that is often used as a decorative pattern and design element because of its unique shape and symmetry.
StarThe module can be parameterized by the number of sharp corners and the density of the sharp corners.
Star(n=5)
# The higher the density, the denser the corners look
Star(n=9, density=2)
Star(n=9, density=4)
3. Annexes
The complete code for the article is on a web disk (），
Download at.Full Code (Access code: 6872)