Wednesday, 29 April 2009

Tuesday, 21 April 2009

Moire effect



Found on lovely package.com uses the moire effect


The nonlinear interaction of the optical patterns of lines creates a real and visible pattern of roughly horizontal dark and light bands, the moiré pattern, superimposed on the lines.[1] More complex line moiré patterns are created if the lines are curved or not exactly parallel. Moiré patterns revealing complex shapes, or sequences of symbols embedded in one of the layers (in form of periodically repeated compressed shapes) are created with shape moiré, otherwise called band moiré patterns. One of the most important properties of shape moiré is its ability to magnify tiny shapes along either one or both axes, that is, stretching. A common 2D example of moiré magnification occurs when viewing a chain-link fence through a second chain-link fence of identical design. The fine structure of the design is visible even at great distances.

Shape moiré is one type of moiré patterns demonstrating the phenomenon of moiré magnification[1][2]. 1D shape moiré is the particular simplified case of 2D shape moiré. 1D patterns may appear when superimposing an opaque layer containing tiny horizontal transparent lines on top of a layer containing a complex shape which is periodically repeating along the vertical axis. Shape moiré is sometimes referred as band moiré. The opaque layer with transparent lines is called the revealing layer. The layer containing the periodically repeating shapes is called the base layer. The period of shapes in the base layer is denoted as pb. The period of transparent lines in the revealing layer is denoted as pr. The periods of both layers must be sufficiently close. The superimposition image reveals the shapes of the base layer stretched along the vertical axis. The magnified shapes appear periodically along the vertical axis. The dimensions along the horizontal axis are not changed. If the complex shape of the base layer is a sequence of symbols (e.g. a horizontal text) compressed along the vertical axis, then the superimposition of the revealing layer can restore the original proportions of these symbols. The size of optical shapes pm, magnified along the vertical axis is expressed by the following formula:

p_m=-\frac{p_b \cdot p_r}{p_b-p_r}

Negative values of pm signify mirrored appearance (the magnified shapes will be inverted along the vertical axis) of the stretched shapes.

When the revealing layer is moved along the vertical axis, the magnified shapes move along the vertical axis at a faster speed. The speedup factor is expressed by the following formula:

\frac{v_m}{v_r}=-\frac{p_b}{p_b-p_r}

Negative values of vm / vr signify the movement of optical shapes in reverse direction.

When pr > pb, the magnified shapes appear normally, but they move in reverse direction compared to the movement of the revealing layer. See the figure below:



Line moiré is one type of moiré pattern; a pattern that appears when superposing two transparent layers containing correlated opaque patterns. Line moiré is the case when the superposed patterns comprise straight or curved lines. When moving the layer patterns, the moiré patterns transform or move at a faster speed. This effect is calledoptical moiré speedup.




Wednesday, 1 April 2009

group tutorial

Reviewed progress so far with FMP.

Need to resolve projects so far and prepare for submission. So that I can concentrate on a larger more in depth project. I need to write a brief that will allow the research and development of previous projects to be integrated into a larger more in-depth and focused project. This could be choosing one of the previous projects as an agenda for further research; possibly synesthesia as an avenue for further investigation.

I need to Delve deep into a singular specific area of my research. I need a brief that will give me room to expand into multiple formats and arenas.

Alot of the work I have created so far has just been in poster format, and this is limiting me as a designer, I should try not to just jump straight for poster format and consider other formats and how they could work for the project. I should also refer back to my original statement of intent where I stated I would investigate publication design. This needs a more focussed research agenda into the possibilities of publication design and the varieties of different formats within publication design.


Possibilities for further development within the projects i have done so far.

-Synesthesia.

-The use of multiple languages in a publication - the interaction differentiating the two languages.(matisyahu double sided poster)

Action plan for FMP overall development

- finish off briefs so far
- write massive project brief.