Showing posts with label vanishing points. Show all posts
Showing posts with label vanishing points. Show all posts

Sunday, 30 November 2014

viewshed

 He who from the top of AEtna casts his eyes leisurely around, is affected chiefly by the extent and diversity of the scene. Only by a rapid whirling on his heel could he hope to comprehend the panorama in the sublimity of its oneness. But as, on the summit of AEtna, no man has thought of whirling on his heel, so no man has ever taken into his brain the full uniqueness of the prospect; and so, again, whatever considerations lie involved in this uniqueness, have as yet no practical existence for mankind.
 http://xroads.virginia.edu/~HYPER/poe/eureka.html

A viewshed is an area of land, water, or other environmental element that is visible to the human eye from a fixed vantage point. The term is used widely in such areas as urban planning, archaeology, and military science. In urban planning, for example, viewsheds tend to be areas of particular scenic or historic value that are deemed worthy of preservation against development or other change. Viewsheds are often spaces that are readily visible from public areas such as from public roadways, public parks or high-rise buildings. The preservation of viewsheds is frequently a goal in the designation of open space areas, green belts, and community separators.

In digital imaging, a viewshed may be a binary raster indicating the visibility of a viewpoint for or from an area of interest. A pixel with a value of unity indicates that the viewpoint is visible from that pixel, while a value of zero indicates that the viewpoint is not visible from the pixel. In certain disciplines, such as radio communications, 'visibility' may be probabilistic, therefore viewshed may be represented with non-integer values.
In radio, a viewshed is the area where a specific combination of transmitter, antenna, and terrain allow reception of signal.

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Avebury// googleearth

Tuesday, 12 August 2014

visible \ legible \ invisible




Working with photoscan for instance, produces a whole new set of digital picking points over the drums as the photos are aligned, producing new constellations, new strata of data.

Saturday, 15 December 2012

time travel// parallel photography

one moment /// many points of view
reversed panopticon
the crowd executes the sovereign
a revolutionary device


“The idea is a monad. The being that enters into it, with its past and subsequent history, brings – concealed in its own form – an indistinct abbreviation of the rest of the world of ideas, just as, according to Leibniz’s Discourse on Metaphysics (1686) , every single monad contains, in an indistinct way, all the others… The idea is a monad – that means briefly: every idea contains the image of the world. The purpose of the representation of the idea is nothing less than an abbreviated outline of this image of the world.”
Benjamin encapsulates his monadological theory in a famous astronomical metaphor: “Ideas are to objects as constellations are to stars”. The constellation becomes Benjamin’s term for the configuration or network of ideas that create, so to speak, a holographic image (an “abbreviation”) of the world in its entirety. His subsequent career was to be devoted to mapping such constellations. 
 ...
The constellation became the “dialectical image”, a view of history reachable only from a particular perspective, in much the same way that a stellar constellation such as Orion can take the form we see, only when viewed from our own planet at this particular time (since its stars are actually unrelated, lying at very different distances from Earth, and are all in motion with respect to each other). The image is “dialectical” in the sense of our engagement with it: we actively bring it into being, and the knowledge it produces can bring about change. Despite the apparent idealism of Benjamin’s theory, the constellation or dialectical image remains an abbreviation of objective fact and historical truth. Leibniz had already expressed something like this in Monadology (1714): "And just as the same town when seen from different sides will seem quite different, and as it were multiplied perspectivally, the same thing happens here: because of the infinite multitude of simple substances it is as if there were as many different universes; but they are all perspectives on the same one, according to the different point of view of each monad."
 CRUMEY


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Benjamin Arcades    Y PHOTOGRAPHY / 689

It was the pantograph, whose principle is equally at work in the physiognotrace, that undertook to transcribe automatically a linear scheme originally traced on paper to a plaster mass, as required by the process of photosculpture­. Serving as model in this process were 24 simultaneous views taken from different sides. Gautier forsees no threat to sculpture from this process. What can prevent the sculptor from artistically enlivening the mechanically produced figure and its ground? “But there is more: for all its extravagance, the century remains economical. Pure art seems to it something expensive. With the cheekiness of a parvenu, it sometimes dares to haggle over masterworks. It is terrifeied of marble and bronze.. But photosculpture is not so daunting as statuary… Photosculpture is used to modest proportions and is content with a set of shelves for pedestal, happy to have faithfully reproduced a beloved countenance.. It does not disdain an overcoat, and is not embarrasses by crinolines; it accepts nature and the world as they are. Its sincerity accommodates everything, and though its plaster casts of stearin can be transposed into marble, into terracotta, into alabaster, or bronze… it never asks, in return for its work, what its elder sister would demand in payment; it requsests only the cost of materials.’ Theophile Gautier / Photosculpture: 42 Boulevard de L’Etoile 


The Seven Old Men

To Victor Hugo

Teeming, swarming city, city full of dreams,
Where specters in broad day accost the passer-by!
Everywhere mysteries flow like the sap in a tree
Through the narrow canals of the mighty giant.

One morning, while in a gloomy street the houses,
Whose height was increased by the mist, simulated
The quais of a swollen river, and while
— A setting that was like the actor's soul —

A dirty yellow fog inundated all space,
I was following, steeling my nerves like a hero,
Arid arguing with my already weary soul,
A squalid street shaken by the heavy dump-carts.

Suddenly an old man whose tattered yellow clothes
Were of the same color as the rainy heavens,
And whose aspect would have brought him showers of alms
If his eyes had not gleamed with so much wickedness,

Appeared to me. One would have said his eyes were drenched
With gall; his look sharpened the winter's chill,
And his long shaggy beard, like that of Judas,
Projected from his chin as stiffly as a sword.

He was not bent over, but broken; his back-bone
Made with his legs a perfect right angle,
So that his stick, completing the picture,
Gave him the appearance and clumsy gait

Of a lame quadruped or a three-legged Jew.
He went hobbling along in the snow and the mud
As if he were crushing the dead under his shoes;
Hostile, rather than indifferent to the world,

His likeness followed him: beard, eye, back, stick, tatters,
No mark distinguished this centenarian twin,
Who came from the same hell, and these baroque specters
Were walking with the same gait toward an unknown goal.

Of what infamous plot was I then the object,
Or what evil chance humiliated me thus?
For I counted seven times in as many minutes
That sinister old man who multiplied himself!

Let him who laughs at my disquietude,
And who is not seized with a fraternal shudder,
Realize that in spite of such decrepitude
Those hideous monsters had an eternal look!

Could I, without dying, have regarded the eighth,
Unrelenting Sosia, ironic and fatal,
Disgusting Phoenix, son and father of himself?
— But I turned my back on that hellish procession.

Exasperated like a drunk who sees double,
I went home; I locked the door, terrified,
Chilled to the bone and ill, my mind fevered, confused,
Hurt by that mysterious and absurd happening!

Vainly my reason tried to take the helm;
The frolicsome tempest baffled all its efforts,
And my soul, old sailing barge without masts,
Kept dancing, dancing, on a monstrous, shoreless sea!

— William Aggeler, The Flowers of Evil (Fresno, CA: Academy Library Guild, 1954)

Sunday, 5 February 2012

denkbild/ a state of history

…travellers in a train that has met with an accident in a tunnel, and this at a place where the light of the beginning can no longer be seen, and the light at the end is so very small a glimmer that the gaze must continually search for it and is always losing it again, and, furthermore, it is not even certain whether it is the beginning or the end of the tunnel.

kafka / the blue octavo noteboks / 15

agamben / melancholy angel/ 112

Sunday, 30 October 2011

groundless

Seen as originary, disorientation is always constituted by identifiable, characteristic orientation-markers (cardinalité( designating its borders, in- dicating North and South, Orient and Occident. In disorientation, how- ever, Orient and Occident are not simply geographic givens; Orient and Occident designate particular experiences of disorientation. Such cardi- nal directional markers, insofar as they open (to) the horizon of meaning and configure the motif for all motivation, can be reified only through experience of and in the world. Observed over significant lengths of time, establishment of such cardinal points is what “adjusts” both techno-gen- esis and socio-genesis. Through this positing of directions and their ad- justments, disorientation opens a space of difference, between here and there, public and private, profane and sacred, strange and familiar, and so on. Adjustments (re-)orient, and originary disorientation is converted, if not occluded. If such adjustments are the engine of all motivation, and if they must be oriented, it is because the orient (the other) is missing. From this missing other, cardinal designation produces a figure (a motive that is a goal) in which what is being oriented is reflected—the Orient is this mirage.3
This cardinal orientation is not successfully occurring today; thus we are suffering from disorientation as such.

stiegler / t&t 2 / Intro

Monday, 24 October 2011

portolano























Fredric Jameson (1991)

Postmodernism
or, The Cultural Logic of Late Capitalism

There is, for one thing, a most interesting convergence between the empirical problems studied by Lynch in terms of city space and the great Althusserian (and Lacanian) redefinition of ideology as “the representation of the subject’s Imaginary relationship to his or her Real conditions of existence.” Surely this is exactly what the cognitive map is called upon to do in the narrower framework of daily life in the physical city: to enable a situational representation on the part of the individual subject to that vaster and properly unrepresentable totality which is the ensemble of society’s structures as a whole.
Yet Lynch’s work also suggests a further line of development insofar as cartography itself constitutes its key mediatory instance. A return to the history of this science (which is also an art) shows us that Lynch’s model does not yet, in fact, really correspond to what will become map-making. Lynch’s subjects are rather clearly involved in pre-cartographic operations whose results traditionally are described as itineraries rather than as maps: diagrams organised around the still subject-centred or existential journey of the traveller, along which various significant key features are marked oases, mountain ranges, rivers, monuments, and the like. The most highly developed form of such diagrams is the nautical itinerary, the sea chart, or portulans, where coastal features are noted for the use of Mediterranean navigators who rarely venture out into the open sea.
Yet the compass at once introduces a new dimension into sea charts, a dimension that will utterly transform the problematic of the itinerary and allow us to pose the problem of a genuine cognitive mapping in a far more complex way. For the new instruments - compass, sextant, and theodolite – correspond not merely to new geographic and navigational problems (the difficult matter of determining longitude, particularly on the curving surface of the planet, as opposed to the simpler matter of latitude, which European navigators can still empirically determine by ocular inspection of the African coast); they also introduce a whole new coordinate: the relationship to the totality, particularly as it is mediated by the stars and by new operations like that of triangulation. At this point, cognitive mapping in the broader sense comes to require the coordination of existential data (the empirical position of the subject) with unlived, abstract conceptions of the geographic totality.

Monday, 24 January 2011

Monday, 2 August 2010

stumbling block





























A line of trees felled across a road by the Germans to slow the Australian advance towards the Hindenburg Line, France, 1917. [AWM H08797]