# Shape Renderer Module ## This module provides functions for drawing basic geometrical shapes with simple code ## 1. Importing ```c++ #include "pico-ssd1306/shapeRenderer/ShapeRenderer.h" ``` note that core library and hardware_i2c library's need to be imported to use this library so follow steps from section 1 of [readme.md](../readme.md) ## 2. Differences from core library Calling functions from modules is different from core lib. You can't just do ```object.drawLine(...``` since modules don't actually extend the SSD1306 class. You need to provide module functions with a pointer to a display object. So the first argument of every module draw function is a pointer to a display. To see this more clearly here is an example: ```c++ // Create a new display object pico_ssd1306::SSD1306 display = pico_ssd1306::SSD1306(I2C_PORT, 0x3D, pico_ssd1306::Size::W128xH64); // Draw a line from x: 0, y: 0 to x: 128, y: 64 // Notice how we first pass the address of display object to the function pico_ssd1306::drawLine(&display, 0, 0, 128, 64); ``` ## All functions are documented [here](https://ssd1306.harbys.me)