Graphic PIZiadas

Graphic PIZiadas

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Archivo de febrero 2018

Geometría proyectiva: Obtaining conical shafts from two pairs Diameters Polar Conjugates

A conical axes are those conjugates polar diameters are orthogonal to each.

We recall that two polar conjugate diameters, necessarily pass through the center O of the conical, are the polar two points unfit (located at infinity) that they are conjugated, namely, the polar of each of these points contains the other.

These pairs of elements determine an involution of diameters (polar) Conjugates will be defined when two pairs of beams know and their homologues.

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Learn to draw with Andrew Loomis

There are many manuals drawing with different methods to initiate us refine our technique and representation. One of the first thing I remember are the booklets drawing painter Joan Miró Ferrer.

William Andrew Loomis was an illustrator of the first half of the twentieth century, in addition to his graphic work, He left a series of books to learn to draw. The practical approach of these manuals along with the gradual difficulty of the exercises are two characteristics that make them especially useful for beginners in the drawing with pencil.

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Diédrico System: Distance from a point to a line

We can define the distance from a point P to a line r as the smallest of the distances from the point P to the infinite points on the line r. To determine this distance must obtain the line perpendicular to the line r from the point P and get their point of intersection I. The distance d from P to R is the minimum distance from this point to the line r.

This problem can have two different approaches to determining the solution sought.

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in memoriam: Forges

Forges has left us.

His characters reminding us continue our history with this great surrealistic tone.

Since this blog, our appreciation to the artist, to the subtleties of his particular vision of this country.

Hasta siempre teacher, we will always that nose of your characters as a graphic feature.

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