Page 48 of 127 (2525 total posts)

June 2021

09-06-2021

Home

Source: rawgraphs.io

The missing link between spreadsheets and data visualization.

Tags: charts graphs how-to otp tool visualize
09-06-2021
Geometry (Points, Vectors and Normals)

Geometry (Points, Vectors and Normals)

Source: scratchapixel.com

Lesson summary: In this lesson we will learn about the concept of point, vector, normal and matrices. These concepts are used everywhere in CG, whether in modelling, simulation, animation or rendering. They are the essential ingredients of any graphics application.

Tags: geometry math explainer matrix vector

May 2021

27-05-2021
[Solved] Tutorial: GPIO/I2C/SPI-access without root-permissions

[Solved] Tutorial: GPIO/I2C/SPI-access without root-permissions

Source: forum.up-community.org

A great solution to a very specific problem I have been having! --> As you may have noticed, by default you do not have access to the GPIO-pins, the SPI-bus or the I2C-bus as a normal user and you have to use 'sudo' to access them or run an application that utilizes them; it is generally a good idea to limit access to such things for security, but on a dev-board like the UP and UP^2 it may be convenient to do development and testing as a regular user.

Tags: gpio raspberry-pi how-to