Draw API

Functions

Arc

arc(x, y, w, h, start, extent, type, border_color, fill_color)

- x: the x coordinate of the upper-left corner of the arc's framing rectangle - y: the y coordinate of the upper-left corner of the arc's framing rectangle - w: the overall width of the full ellipse of which this arc is a partial section - h: the overall height of the full ellipse of which this arc is a partial section - start: the starting angle of the arc in degrees - extent: the angular extent of the arc in degrees - type: the closure type for the arc: "open", "chord" or "pie" - border_color: fill color can be set using an RGB comma separated numeric notation, with primary color numbers from 0 to 255 (for example, “color:255,0,0” is red), or using color names. The valid names are: black, blue, cyan, darkgray, gray, lightgray, green, magenta, orange, pink, red, white, yellow. - fill_color: fill color can be set using an RGB comma separated numeric notation, with primary color numbers from 0 to 255 (for example, “color:255,0,0” is red), or using color names. The valid names are: black, blue, cyan, darkgray, gray, lightgray, green, magenta, orange, pink, red, white, yellow.

Fill

fill(color)

Fills the whole area with given color - color: color can be set using an RGB comma separated numeric notation, with primary color numbers from 0 to 255 (for example, “color:255,0,0” is red), or using color names. The valid names are: black, blue, cyan, darkgray, gray, lightgray, green, magenta, orange, pink, red, white, yellow. Set color to "transparent" to create a transparent background, before drawing other objects.

Image

image(file, x, y)

- file: the full pathname, relative to the HSYCO home directory - x: the x coordinate of the location where the String should be rendered - y: the y coordinate of the location where the String should be rendered

Line

line(x1, y1, x2, y2, ...., color)

Draws a sequence of connected lines - x1: X axis coordinate of first point - y1: Y axis coordinate of first point - x2: X axis coordinate of second point - y2: Y axis coordinate of second point - xN: X axis coordinate of N-th point - yN: Y axis coordinate of N-th point - color: color can be set using an RGB comma separated numeric notation, with primary color numbers from 0 to 255 (for example, “color:255,0,0” is red), or using color names. The valid names are: black, blue, cyan, darkgray, gray, lightgray, green, magenta, orange, pink, red, white, yellow.

Spline

spline(x1, y1, x2, y2, ...., color)

draws a natural cubic spline interpolation of a sequence of points - x1: X axis coordinate of first point

- y1: Y axis coordinate of first point - x2: X axis coordinate of second point - y2: Y axis coordinate of second point - xN: X axis coordinate of N-th point - yN: Y axis coordinate of N-th point - color: color can be set using an RGB comma separated numeric notation, with primary color numbers from 0 to 255 (for example, “color:255,0,0” is red), or using color names. The valid names are: black, blue, cyan, darkgray, gray, lightgray, green, magenta, orange, pink, red, white, yellow.

Rectangle

rectangle(x, y, w, h, border_color, fill_color)

- x: the x coordinate of the upper-left corner of the rectangle - y: the y coordinate of the upper-left corner of the rectangle - w: the width of the rectangle - h: the height of the rectangle - border_color: fill color can be set using an RGB comma separated numeric notation, with primary color numbers from 0 to 255 (for example, “color:255,0,0” is red), or using color names. The valid names are: black, blue, cyan, darkgray, gray, lightgray, green, magenta, orange, pink, red, white, yellow. - fill_color: fill color can be set using an RGB comma separated numeric notation, with primary color numbers from 0 to 255 (for example, “color:255,0,0” is red), or using color names. The valid names are: black, blue, cyan, darkgray, gray, lightgray, green, magenta, orange, pink, red, white, yellow.

String

string(text, x, y, font, style, size, color)

- text: quoted text

- x: the x coordinate of the location where the String should be rendered - y: the y coordinate of the location where the String should be rendered - font: font name, like “arial”, “helvetica”, “courier” etc. - style: “bold”, “italic”, or “bolditalic” - color: color can be set using an RGB comma separated numeric notation, with primary color numbers from 0 to 255 (for example, “color:255,0,0” is red), or using color names. The valid names are: black, blue, cyan, darkgray, gray, lightgray, green, magenta, orange, pink, red, white, yellow.

Stroke

stroke(w)

Set the stroke width for all subsequent drawing commands - w: the width of the stroke