pygame.gfxdraw
pygame module for drawing shapes
pygame.gfxdraw.pixel
 — draw a pixel
pygame.gfxdraw.hline
 — draw a horizontal line
pygame.gfxdraw.vline
 — draw a vertical line
pygame.gfxdraw.line
 — draw a line
pygame.gfxdraw.rectangle
 — draw a rectangle
pygame.gfxdraw.box
 — draw a filled rectangle
pygame.gfxdraw.circle
 — draw a circle
pygame.gfxdraw.aacircle
 — draw an antialiased circle
pygame.gfxdraw.filled_circle
 — draw a filled circle
pygame.gfxdraw.ellipse
 — draw an ellipse
pygame.gfxdraw.aaellipse
 — draw an antialiased ellipse
pygame.gfxdraw.filled_ellipse
 — draw a filled ellipse
pygame.gfxdraw.arc
 — draw an arc
pygame.gfxdraw.pie
 — draw a pie
pygame.gfxdraw.trigon
 — draw a trigon/triangle
pygame.gfxdraw.aatrigon
 — draw an antialiased trigon/triangle
pygame.gfxdraw.filled_trigon
 — draw a filled trigon/triangle
pygame.gfxdraw.polygon
 — draw a polygon
pygame.gfxdraw.aapolygon
 — draw an antialiased polygon
pygame.gfxdraw.filled_polygon
 — draw a filled polygon
pygame.gfxdraw.textured_polygon
 — draw a textured polygon
pygame.gfxdraw.bezier
 — draw a Bezier curve

EXPERIMENTAL!: This API may change or disappear in later pygame releases. If you use this, your code may break with the next pygame release.

The pygame package does not import gfxdraw automatically when loaded, so it must imported explicitly to be used.

import pygame
import pygame.gfxdraw

For all functions the arguments are strictly positional and integers are accepted for coordinates and radii. The color argument can be one of the following formats:

The functions rectangle() and box() will accept any (x, y, w, h) sequence for their rect argument, though pygame.Rectpygame object for storing rectangular coordinates instances are preferred.

To draw a filled antialiased shape, first use the antialiased (aa*) version of the function, and then use the filled (filled_*) version. For example:

col = (255, 0, 0)
surf.fill((255, 255, 255))
pygame.gfxdraw.aacircle(surf, x, y, 30, col)
pygame.gfxdraw.filled_circle(surf, x, y, 30, col)

Note

For threading, each of the functions releases the GIL during the C part of the call.

Note

See the pygame.drawpygame module for drawing shapes module for alternative draw methods. The pygame.gfxdraw module differs from the pygame.drawpygame module for drawing shapes module in the API it uses and the different draw functions available. pygame.gfxdraw wraps the primitives from the library called SDL_gfx, rather than using modified versions.

New in pygame 1.9.0.

pygame.gfxdraw.pixel()
draw a pixel
pixel(surface, x, y, color, /) -> None

Draws a single pixel, at position (x ,y), on the given surface.

Parameters:

  • surface (Surface) -- surface to draw on

  • x (int) -- x coordinate of the pixel

  • y (int) -- y coordinate of the pixel

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.hline()
draw a horizontal line
hline(surface, x1, x2, y, color, /) -> None

Draws a straight horizontal line ((x1, y) to (x2, y)) on the given surface. There are no endcaps.

Parameters:

  • surface (Surface) -- surface to draw on

  • x1 (int) -- x coordinate of one end of the line

  • x2 (int) -- x coordinate of the other end of the line

  • y (int) -- y coordinate of the line

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.vline()
draw a vertical line
vline(surface, x, y1, y2, color, /) -> None

Draws a straight vertical line ((x, y1) to (x, y2)) on the given surface. There are no endcaps.

Parameters:

  • surface (Surface) -- surface to draw on

  • x (int) -- x coordinate of the line

  • y1 (int) -- y coordinate of one end of the line

  • y2 (int) -- y coordinate of the other end of the line

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.line()
draw a line
line(surface, x1, y1, x2, y2, color, /) -> None

Draws a straight line ((x1, y1) to (x2, y2)) on the given surface. There are no endcaps.

Parameters:

  • surface (Surface) -- surface to draw on

  • x1 (int) -- x coordinate of one end of the line

  • y1 (int) -- y coordinate of one end of the line

  • x2 (int) -- x coordinate of the other end of the line

  • y2 (int) -- y coordinate of the other end of the line

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.rectangle()
draw a rectangle
rectangle(surface, rect, color, /) -> None

Draws an unfilled rectangle on the given surface. For a filled rectangle use box().

Parameters:

  • surface (Surface) -- surface to draw on

  • rect (Rect) -- rectangle to draw, position and dimensions

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

Note

The rect.bottom and rect.right attributes of a pygame.Rectpygame object for storing rectangular coordinates always lie one pixel outside of its actual border. Therefore, these values will not be included as part of the drawing.

pygame.gfxdraw.box()
draw a filled rectangle
box(surface, rect, color, /) -> None

Draws a filled rectangle on the given surface. For an unfilled rectangle use rectangle().

Parameters:

  • surface (Surface) -- surface to draw on

  • rect (Rect) -- rectangle to draw, position and dimensions

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

Note

The rect.bottom and rect.right attributes of a pygame.Rectpygame object for storing rectangular coordinates always lie one pixel outside of its actual border. Therefore, these values will not be included as part of the drawing.

Note

The pygame.Surface.fill()fill Surface with a solid color method works just as well for drawing filled rectangles. In fact pygame.Surface.fill()fill Surface with a solid color can be hardware accelerated on some platforms with both software and hardware display modes.

pygame.gfxdraw.circle()
draw a circle
circle(surface, x, y, r, color, /) -> None

Draws an unfilled circle on the given surface. For a filled circle use filled_circle().

Parameters:

  • surface (Surface) -- surface to draw on

  • x (int) -- x coordinate of the center of the circle

  • y (int) -- y coordinate of the center of the circle

  • r (int) -- radius of the circle

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.aacircle()
draw an antialiased circle
aacircle(surface, x, y, r, color, /) -> None

Draws an unfilled antialiased circle on the given surface.

Parameters:

  • surface (Surface) -- surface to draw on

  • x (int) -- x coordinate of the center of the circle

  • y (int) -- y coordinate of the center of the circle

  • r (int) -- radius of the circle

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.filled_circle()
draw a filled circle
filled_circle(surface, x, y, r, color, /) -> None

Draws a filled circle on the given surface. For an unfilled circle use circle().

Parameters:

  • surface (Surface) -- surface to draw on

  • x (int) -- x coordinate of the center of the circle

  • y (int) -- y coordinate of the center of the circle

  • r (int) -- radius of the circle

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.ellipse()
draw an ellipse
ellipse(surface, x, y, rx, ry, color, /) -> None

Draws an unfilled ellipse on the given surface. For a filled ellipse use filled_ellipse().

Parameters:

  • surface (Surface) -- surface to draw on

  • x (int) -- x coordinate of the center of the ellipse

  • y (int) -- y coordinate of the center of the ellipse

  • rx (int) -- horizontal radius of the ellipse

  • ry (int) -- vertical radius of the ellipse

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.aaellipse()
draw an antialiased ellipse
aaellipse(surface, x, y, rx, ry, color, /) -> None

Draws an unfilled antialiased ellipse on the given surface.

Parameters:

  • surface (Surface) -- surface to draw on

  • x (int) -- x coordinate of the center of the ellipse

  • y (int) -- y coordinate of the center of the ellipse

  • rx (int) -- horizontal radius of the ellipse

  • ry (int) -- vertical radius of the ellipse

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.filled_ellipse()
draw a filled ellipse
filled_ellipse(surface, x, y, rx, ry, color, /) -> None

Draws a filled ellipse on the given surface. For an unfilled ellipse use ellipse().

Parameters:

  • surface (Surface) -- surface to draw on

  • x (int) -- x coordinate of the center of the ellipse

  • y (int) -- y coordinate of the center of the ellipse

  • rx (int) -- horizontal radius of the ellipse

  • ry (int) -- vertical radius of the ellipse

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.arc()
draw an arc
arc(surface, x, y, r, start_angle, stop_angle, color, /) -> None

Draws an arc on the given surface. For an arc with its endpoints connected to its center use pie().

The two angle arguments are given in degrees and indicate the start and stop positions of the arc. The arc is drawn in a clockwise direction from the start_angle to the stop_angle. If start_angle == stop_angle, nothing will be drawn

Parameters:

  • surface (Surface) -- surface to draw on

  • x (int) -- x coordinate of the center of the arc

  • y (int) -- y coordinate of the center of the arc

  • r (int) -- radius of the arc

  • start_angle (int) -- start angle in degrees

  • stop_angle (int) -- stop angle in degrees

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

Note

This function uses degrees while the pygame.draw.arc()draw an elliptical arc function uses radians.

pygame.gfxdraw.pie()
draw a pie
pie(surface, x, y, r, start_angle, stop_angle, color, /) -> None

Draws an unfilled pie on the given surface. A pie is an arc() with its endpoints connected to its center.

The two angle arguments are given in degrees and indicate the start and stop positions of the pie. The pie is drawn in a clockwise direction from the start_angle to the stop_angle. If start_angle == stop_angle, a straight line will be drawn from the center position at the given angle, to a length of the radius.

Parameters:

  • surface (Surface) -- surface to draw on

  • x (int) -- x coordinate of the center of the pie

  • y (int) -- y coordinate of the center of the pie

  • r (int) -- radius of the pie

  • start_angle (int) -- start angle in degrees

  • stop_angle (int) -- stop angle in degrees

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.trigon()
draw a trigon/triangle
trigon(surface, x1, y1, x2, y2, x3, y3, color, /) -> None

Draws an unfilled trigon (triangle) on the given surface. For a filled trigon use filled_trigon().

A trigon can also be drawn using polygon() e.g. polygon(surface, ((x1, y1), (x2, y2), (x3, y3)), color)

Parameters:

  • surface (Surface) -- surface to draw on

  • x1 (int) -- x coordinate of the first corner of the trigon

  • y1 (int) -- y coordinate of the first corner of the trigon

  • x2 (int) -- x coordinate of the second corner of the trigon

  • y2 (int) -- y coordinate of the second corner of the trigon

  • x3 (int) -- x coordinate of the third corner of the trigon

  • y3 (int) -- y coordinate of the third corner of the trigon

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.aatrigon()
draw an antialiased trigon/triangle
aatrigon(surface, x1, y1, x2, y2, x3, y3, color, /) -> None

Draws an unfilled antialiased trigon (triangle) on the given surface.

An aatrigon can also be drawn using aapolygon() e.g. aapolygon(surface, ((x1, y1), (x2, y2), (x3, y3)), color)

Parameters:

  • surface (Surface) -- surface to draw on

  • x1 (int) -- x coordinate of the first corner of the trigon

  • y1 (int) -- y coordinate of the first corner of the trigon

  • x2 (int) -- x coordinate of the second corner of the trigon

  • y2 (int) -- y coordinate of the second corner of the trigon

  • x3 (int) -- x coordinate of the third corner of the trigon

  • y3 (int) -- y coordinate of the third corner of the trigon

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.filled_trigon()
draw a filled trigon/triangle
filled_trigon(surface, x1, y1, x2, y2, x3, y3, color, /) -> None

Draws a filled trigon (triangle) on the given surface. For an unfilled trigon use trigon().

A filled_trigon can also be drawn using filled_polygon() e.g. filled_polygon(surface, ((x1, y1), (x2, y2), (x3, y3)), color)

Parameters:

  • surface (Surface) -- surface to draw on

  • x1 (int) -- x coordinate of the first corner of the trigon

  • y1 (int) -- y coordinate of the first corner of the trigon

  • x2 (int) -- x coordinate of the second corner of the trigon

  • y2 (int) -- y coordinate of the second corner of the trigon

  • x3 (int) -- x coordinate of the third corner of the trigon

  • y3 (int) -- y coordinate of the third corner of the trigon

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

pygame.gfxdraw.polygon()
draw a polygon
polygon(surface, points, color, /) -> None

Draws an unfilled polygon on the given surface. For a filled polygon use filled_polygon().

The adjacent points in the points argument, as well as the first and last points, will be connected by line segments. e.g. For the points [(x1, y1), (x2, y2), (x3, y3)] a line segment will be drawn from (x1, y1) to (x2, y2), from (x2, y2) to (x3, y3), and from (x3, y3) to (x1, y1).

Parameters:

  • surface (Surface) -- surface to draw on

  • points (tuple(point) or list(point)) -- a sequence of 3 or more (x, y) coordinates, where each point in the sequence must be a tuple/list/pygame.math.Vector2a 2-Dimensional Vector of 2 ints/floats (float values will be truncated)

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

Raises:

  • ValueError -- if len(points) < 3 (must have at least 3 points)

  • IndexError -- if len(point) < 2 (each point must have at least 2 items)

pygame.gfxdraw.aapolygon()
draw an antialiased polygon
aapolygon(surface, points, color, /) -> None

Draws an unfilled antialiased polygon on the given surface.

The adjacent points in the points argument, as well as the first and last points, will be connected by line segments. e.g. For the points [(x1, y1), (x2, y2), (x3, y3)] a line segment will be drawn from (x1, y1) to (x2, y2), from (x2, y2) to (x3, y3), and from (x3, y3) to (x1, y1).

Parameters:

  • surface (Surface) -- surface to draw on

  • points (tuple(point) or list(point)) -- a sequence of 3 or more (x, y) coordinates, where each point in the sequence must be a tuple/list/pygame.math.Vector2a 2-Dimensional Vector of 2 ints/floats (float values will be truncated)

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

Raises:

  • ValueError -- if len(points) < 3 (must have at least 3 points)

  • IndexError -- if len(point) < 2 (each point must have at least 2 items)

pygame.gfxdraw.filled_polygon()
draw a filled polygon
filled_polygon(surface, points, color, /) -> None

Draws a filled polygon on the given surface. For an unfilled polygon use polygon().

The adjacent points in the points argument, as well as the first and last points, will be connected by line segments. e.g. For the points [(x1, y1), (x2, y2), (x3, y3)] a line segment will be drawn from (x1, y1) to (x2, y2), from (x2, y2) to (x3, y3), and from (x3, y3) to (x1, y1).

Parameters:

  • surface (Surface) -- surface to draw on

  • points (tuple(point) or list(point)) -- a sequence of 3 or more (x, y) coordinates, where each point in the sequence must be a tuple/list/pygame.math.Vector2a 2-Dimensional Vector of 2 ints/floats (float values will be truncated)`

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

Raises:

  • ValueError -- if len(points) < 3 (must have at least 3 points)

  • IndexError -- if len(point) < 2 (each point must have at least 2 items)

pygame.gfxdraw.textured_polygon()
draw a textured polygon
textured_polygon(surface, points, texture, tx, ty, /) -> None

Draws a textured polygon on the given surface. For better performance, the surface and the texture should have the same format.

A per-pixel alpha texture blit to a per-pixel alpha surface will differ from a pygame.Surface.blit()draw another surface onto this one blit. Also, a per-pixel alpha texture cannot be used with an 8-bit per pixel destination.

The adjacent points in the points argument, as well as the first and last points, will be connected by line segments. e.g. For the points [(x1, y1), (x2, y2), (x3, y3)] a line segment will be drawn from (x1, y1) to (x2, y2), from (x2, y2) to (x3, y3), and from (x3, y3) to (x1, y1).

Parameters:

  • surface (Surface) -- surface to draw on

  • points (tuple(point) or list(point)) -- a sequence of 3 or more (x, y) coordinates, where each point in the sequence must be a tuple/list/pygame.math.Vector2a 2-Dimensional Vector of 2 ints/floats (float values will be truncated)

  • texture (Surface) -- texture to draw on the polygon

  • tx (int) -- x offset of the texture

  • ty (int) -- y offset of the texture

Returns:

None

Return type:

NoneType

Raises:

  • ValueError -- if len(points) < 3 (must have at least 3 points)

  • IndexError -- if len(point) < 2 (each point must have at least 2 items)

pygame.gfxdraw.bezier()
draw a Bezier curve
bezier(surface, points, steps, color, /) -> None

Draws a Bézier curve on the given surface.

Parameters:

  • surface (Surface) -- surface to draw on

  • points (tuple(point) or list(point)) -- a sequence of 3 or more (x, y) coordinates used to form a curve, where each point in the sequence must be a tuple/list/pygame.math.Vector2a 2-Dimensional Vector of 2 ints/floats (float values will be truncated)

  • steps (int) -- number of steps for the interpolation, the minimum is 2

  • color (Color or tuple(int, int, int, [int])) -- color to draw with, the alpha value is optional if using a tuple (RGB[A])

Returns:

None

Return type:

NoneType

Raises:

  • ValueError -- if steps < 2

  • ValueError -- if len(points) < 3 (must have at least 3 points)

  • IndexError -- if len(point) < 2 (each point must have at least 2 items)

Note

This function supports up to around 150-200 points before the algorithm breaks down.



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