Node:Drawing objects, Next:Clipping, Previous:Drawing on canvas, Up:canvas
The canvas object can be invoked manually to draw variety of
things if you desire so.
| canvas.T:line LINESTYLE, X1, Y1, X2, Y2 | Method |
# draw a line segment from (10,20) to (100, 200) can.line(line_style.blackdash1, 10, 20, 100, 200) |
| canvas.line LINESTYLE, X1, Y1, X2, Y2 | Function |
| Calls the method with the same name on the default canvas object. |
| canvas.T:polygon LINESTYLE, FILLSTYLE, [(X1,Y1), ..., (Xn, Yn)] | Method |
|
Draw a polygon with LINESTYLE (see line_style), fill with FILLSTYLE
(see fill_style), and the edges POINTS. POINTS is a list of
coordinates, e.g., ((10,10), (15,5), (20,8)). SHADOW is either None or a
tuple (XDELTA, YDELTA, SHADOWSTYLE). If non-null, a shadow of
SHADOWSTYLE (see fill_style)is drawn beneath the polygon at the
offset of (XDELTA, YDELTA). LINESTYLE can be None, in which case
no perimeter lines are drawn. FILLSTYLE (see fill_style) can also be
None, in which the internal of the polygon are left undrawn.
can.polygon(line_style.default, fill_style.default, [(10, 20), (100, 200), (300,300)]) |
| canvas.polygon LINESTYLE, FILLSTYLE, [(X1,Y1), ..., (Xn, Yn)] | Function |
| Calls the method with the same name on the default canvas object. |
| canvas.T:rectangle LINESTYLE, FILLSTYLE, X1, Y1, X2, Y2, SHADOW=None | Method |
|
Parameter shadow, if none, draws a drop-shadow. It should be a
tuple of three values, (x_off, y_off, fill).
can.rectangle(line_style.default, fill_style.default, 10, 20, 300, 300) |
| canvas.rectangle LINESTYLE, FILLSTYLE, X1, Y1, X2, Y2, SHADOW=None | Function |
| Calls the method with the same name on the default canvas object. |
| canvas.T:ellipsis LINESTYLE, FILLSTYLE, X, Y, RADIUS, Y-ELONGATION=1, START=0, END=360, SHADOW=None | Method |
|
The start and end angles are specified in degrees; i.e., between 0 and 360. Parameter shadow, if none, draws a drop-shadow. It should be a tuple of three values, (x_off, y_off, fill). |
| canvas.ellipsis LINESTYLE, FILLSTYLE, X, Y, RADIUS, Y-ELONGATION=1, START=0, END=360, SHADOW=None | Function |
| Calls the method with the same name on the default canvas object. |
| canvas.T:round_rectangle LINESTYLE, FILLSTYLE, X1,Y2,X2,Y2,RADIUS,SHADOW=None | Method |
|
Draw a rectangle with rounded four corners.
Parameter shadow, if none, draws a drop-shadow. It should be a tuple of three values, (x_off, y_off, fill). |
| canvas.round_rectangle LINESTYLE, FILLSTYLE, X1,Y2,X2,Y2,RADIUS,SHADOW=None | Function |
| Calls the method with the same name on the default canvas object. |
| canvas.T:curve LINESTYLE, [(X1,Y2), ..., (Xn, Yn)] | Method |
| Draw a Bezier curve. |
| canvas.curve LINESTYLE, [(X1,Y2), ..., (Xn, Yn)] | Function |
| Calls the method with the same name on the default canvas object. |
| canvas.T:show X, Y, TEXT | Method |
| TEXT supports font manipulation, as defined in See font. |
| canvas.show X, Y, TEXT | Function |
| Calls the method with the same name on the default canvas object. |
| canvas.T:verbatim STR | Method |
| This procedure outputs an arbitrary text STR to the file. |
| canvas.verbatim STR | Function |
| Calls the method with the same name on the default canvas object. |
| canvas.default_canvas | Function |
| Return the default canvas. |