TI-84 Evo Python Modules: ti_draw and ti_system

Documentation for the TI-84 Evo's own Python modules: ti_draw and ti_system.

Try any of these in CalcPlex PRGM, a browser code editor, which sends your program to a calculator over USB. It also lists Python's built-in functions in the reference sidebar.

Every function

• ti_draw.clear_rect(Erases a rectangular area back to white without changing your drawing color.
• ti_draw.draw_circle(Draws the outline of a circle centered at (x, y) with radius r.
• ti_draw.draw_line(Draws a straight line between two points.
• ti_draw.draw_poly(Draws connected line segments through a list of points.
• ti_draw.draw_rect(Draws a rectangle outline with the current color.
• ti_draw.draw_text(Draws a string on the screen. Each character is 10 pixels wide.
• ti_draw.fill_circle(Fills a solid disc centered at (x, y) with radius r.
• ti_draw.fill_poly(Fills the polygon whose corners come from two coordinate lists.
• ti_draw.fill_rect(Fills a solid rectangle with the current color.
• ti_draw.get_screen_dim(Returns [319, 209], the largest x and y coordinates you can draw at.
• ti_draw.plot_xy(Draws a small marker at (x, y). shape is a number from 1 to 13.
• ti_draw.set_color(Sets the drawing color. Everything drawn after this uses the new color.
• ti_draw.set_pen(Sets the line thickness and dash pattern for outline drawing calls.
• ti_draw.set_window(Changes coordinates from pixels to your own number system.
• ti_draw.show_draw(Pauses the program until CLEAR is pressed. You don't need it to see drawings.
• ti_system.disp_at(Write a line of text on the shell screen at the row you choose.
• ti_system.disp_clr(Clears the text shell screen, or just one row.
• ti_system.disp_cursor(Meant to hide or show the shell's blinking cursor.
• ti_system.disp_wait(Freezes the program until CLEAR is pressed, then clears the text screen.
• ti_system.escape(Returns True if CLEAR has been pressed. A clean way to let users stop a loop.
• ti_system.get_key(Checks which key is pressed right now. Pass 0 to poll without waiting.
• ti_system.recall_RegEQ(Read the last regression equation the calculator computed.
• ti_system.recall_list(Read a TI-Basic list variable into your Python program.
• ti_system.sleep(Pauses the program. Accepts fractions like 0.5 for half a second.
• ti_system.store_list(Save a Python list to a TI-Basic list variable.
• ti_system.wait(Pauses for a number of seconds. Same as time.sleep().
• ti_system.wait_key(Waits for a key press and returns its code.