dudraw.dudraw

Draw an annulus centered at (x, y) with outer radius r1, and inner radius r2.

An annulus is a ring shape region between two circles centered at the same point but the outer circle r1 has larger radius than the inner circle r2

Draw an arc portion between angle1 and angle2, of the circumference of a circle centered at (x, y) with a radius r.

An arc is a contiguous portion of a circle between angle1 and angle2. Note that the line of arc starts at angle1 and goes to angle2 in counter clock-wise direction.

Draw on the canvas a circle of radius r centered on (x, y).

Clear the canvas to color c, where c is an object of class Color. c defaults to dudraw.WHITE.

Clear the canvas to color defined by r, g, and b. Defaults to white (255, 255, 255).

Draw on the canvas an ellipse centered at (x, y) with a width of 2.0 * half_width, and a height of 2.0 * half_height.

Draw an arc portion between angle1 and angle2, of the circumference of an ellipse centered at (x, y) with a width of half_width, and a height of 2.0 * half_height.

An arc is a contiguous portion of the ellipse between angle1 and angle2. Note that the line of arc starts at angle1 and goes to angle2 in counter clock-wise direction.

Draw a sector portion between angle1 and angle2, of the interior of an ellipse centered at (x, y) with a width of half_width, and a height of 2.0 * half_height.

This is like a slice of an elliptical shaped pizza. Note that the line of the arc of the sector starts at angle1 and goes to angle2 in counter clock-wise direction.

Draw a filled annulus centered at (x, y) with outer radius r1, and inner radius r2.

An annulus is a ring shape region between two circles centered at the same point but the outer circle r1 has larger radius than the inner circle r2

Draw on the canvas a filled circle of radius r centered on (x, y).

Draw on the canvas a filled ellipse centered at (x, y) with a width of 2.0 * half_width, and a height of 2.0 * half_height.

Draw a filled sector portion between angle1 and angle2, of the interior of an ellipse centered at (x, y) with a width of half_width, and a height of 2.0 * half_height.

This is like a slice of an elliptical shaped pizza. Note that the line of the arc of the sector starts at angle1 and goes to angle2 in counter clock-wise direction.

Draw on the canvas a filled polygon with coordinates (x[i], y[i]).

The lists x and y must contain the same number of values. The two lists correspond to x-coordinates and y-coordinates of points (x[0], y[0]), (x[1], y[1]), (x[2], y[2]),..., (x[-1], y[-1]) on the polygon. Each point on the polygon connects to the point that follows it so (x_0, x_0) connects to (x[1], y[1]) with a straight line, then (x[1], y[1]) connects to (x[2], y[2]) and so on until (x[-1], y[-1]) connects to (x[0], y[0]).

Draw a filled quadrilateral on the canvas with corners at (x0, y0), (x1, y1), (x2, y2), and (x3, y3).

Draw on the canvas a rectangle of width (2 * halfWidth and height (2 * halfHeight) centered at point (x, y).

Draw a filled sector portion between angle1 and angle2, of the interior of a circle centered at (x, y) with a radius r.

This is like a slice of circle shaped pizza. Note that the line of the arc of the sector starts at angle1 and goes to angle2 in counter clock-wise direction.

Draw on the canvas a filled square whose sides are of length 2r, centered on (x, y).

Draw a filled triangle on the canvas with corners at (x0, y0), (x1, y1), and (x2, y2).

Return the height of the current canvas.

Return the width of the current canvas.

Return the pen color as an object of class Color.

Return the color of the pixel at the given user coordinates.

Return True if the user has pressed a key since the last call, otherwise False.

Return the set of keys that are currently being held down by the user.

Return the set of keys that the user has released since the last time this function was called.

Return the set of keys that the user has typed since the last time this function was called.

Draw on the canvas a line from (x0, y0) to (x1, y1).

The placement of the line on the canvas will depend on the values of (x1, y1), (x2, y2) as well as the x-scale and y-scale. Note that if the coordinates are outside the range of min and max x-scale or y-scale then the point won't appear on the canvas

Return True if the left mouse button has been pressed since the last check, and False otherwise.

Return True if the mouse is being click-and-dragged on the canvas, and False otherwise.

Return True if the left mouse button is currently being held down, and False otherwise.

Return True if the left mouse button has been released since the last check, and False otherwise.

Return the x coordinate in user space of the mouse cursor.

Return the y coordinate in user space of the mouse cursor.

Return a string representing a key that was typed since the last time this function, or the keys_typed() function was called.

Return a string representing a key that was typed since the last time this function, or the keys_typed() function was called.

Draw pic on the canvas centered at (x, y).

The file can be of type .jpg, .png, .gif or .bmp. Filepath is specified as a string, and (x, y) defaults to the midpoint of the canvas.

Draw on the canvas a point at coordinates (x, y).

The placement of the point on the canvas will depend on the values of (x, y) as well as the x-scale and y-scale. Note that if the coordinates are outside the range of min and max x-scale or y-scale then the point won't appear on the canvas

Draw on the canvas a polygon with coordinates (x[i], y[i]).

The lists x and y must contain the same number of values. The two lists correspond to x-coordinates and y-coordinates of points (x[0], y[0]), (x[1], y[1]), (x[2], y[2]),..., (x[-1], y[-1]) on the polygon. Each point on the polygon connects to the point that follows it so (x_0, x_0) connects to (x[1], y[1]) with a straight line, then (x[1], y[1]) connects to (x[2], y[2]) and so on until (x[-1], y[-1]) connects to (x[0], y[0]).

Draw on the canvas a polyline with coordinates (x[i], y[i]).

The lists x and y must contain the same number of values. The two lists correspond to x-coordinates and y-coordinates of points (x[0], y[0]), (x[1], y[1]), (x[2], y[2]),..., (x[-1], y[-1]) on the polyline. Each point on the polyline connects to the point that follows it so (x_0, x_0) connects to (x[1], y[1]) with a straight line, then (x[1], y[1]) connects to (x[2], y[2]) and so on.

Draw a quadrilateral on the canvas with corners at (x0, y0), (x1, y1), (x2, y2), and (x3, y3).

Draw on the canvas a rectangle of width (2 * halfWidth and height (2 * halfHeight) centered at point (x, y).

Save the window canvas as a .jpg to filepath specified.

Draw a sector portion between angle1 and angle2, of the interior of a circle centered at (x, y) with a radius r.

This is like a slice of circle shaped pizza. Note that the line of the arc of the sector starts at angle1 and goes to angle2 in counter clock-wise direction.

Set the size of the canvas to w pixels wide and h pixels high.

Calling this function is optional. If you call it, you must do so before calling any drawing function.

Set the font family to f (e.g. 'Helvetica' or 'Courier').

This changes the font used to draw text on the canvas.

Set the font size to s (e.g. 12, 14, 16..etc).

the value of the font size is measured in point. A point is equivalent to about 1.33 pixels

Set the pen color to c, where c is an object of class Color. c defaults to dudraw.BLACK.

Set the pen color using red, green, and blue values. Defaults to black.

Set the pen width/radius to w

This affects the subsequent drawing of points and lines. If w is 0.0, then points will be drawn with the minimum possible width and lines with the minimum possible width.

Set the x-scale and y-scale of the canvas to the same range for both directions.

The value of max must be greater than the value of min

Set the x-scale of the canvas such that the minimum y value is min and the maximum y value is max.

The value of max must be greater than the value of min

Set the y-scale of the canvas such that the minimum y value is min and the maximum y value is max.

The value of max must be greater than the value of min

Copy the canvas to the window canvas, and then wait for msec milliseconds. msec defaults to 0.0.

Note that everything we draw is on the canvas so won't show on the screen until we call show

Draw on the canvas a square whose sides are of length 2r, centered on (x, y).

Draw a line of string on the canvas centered at (x, y).

The string will appear on a single line. Note that (x, y) is the center of the rectangle that bounds the string. The string uses the current font and font size. Font and font size can be modified using the methods: set_font_family and set_font_size

Draw a triangle on the canvas with corners at (x0, y0), (x1, y1), and (x2, y2).