Final Report, CSA Propylaea Project: CAD Models

The principal product of the CSA Propylaea Project was to have been a single, comprehensive, stone-by-stone CAD model of the Propylaea. While that aim has not been reached, there are models of portions of the building available here. In addition, there is significant information about how such models are created generally and how the models here were created in particular.

There are CAD models of the SE Anta, the southernmost column of the east porch, part of the north wall of the central building, and much of the NW wing — including a model of most of the interior faces of the blocks of that wing, a separate model of the cornice blocks, and a model of Mr. Tanoulas' reconstruction of the roof. Information about the models follows.

Anyone unfamiliar with CAD software should attempt to gain some familiarity before trying to use these models, in particular users should be familiar with AutoCAD and its operations. All models were created with AutoCAD (versions 2000 and 2007), and the files/models are in the AutoCAD DWG format associated with version 2007. All files originated in the AutoCAD 2000 format and were migrated automatically during the course of the work. Some entities were modeled with the aid of AutoCAD 2000 extensions and have been re-modeled so as to appear in "standard" AutoCAD. (For more information about CAD, please see CSA's CAD Guide for Archaeologists and Architectural Historians — or the slightly different version at the Archaeology Data Service site and the relevant portions of Eiteljorg & Limp's Archaeological Computing,a PDF publication of CSA, second edition, dated 2008.

As is always the case with CAD models, dimensional information is implicit. That is, all points have unambiguous 3-dimensional locations. As a result the distance from any point to any other point is equally unambiguous, and distances may be calculated by the software quickly and accurately. Consequently, the models do not have dimensions on them. The dimensions may be retrieved on command. All dimensions from CSA surveying have been rounded to the nearest mm. Some dimensions published in Study for the Restoration of the Propylaea, Vol. I, by T. Tanoulas, M. Ioannidou, and A. Maraitou (Athens, 1994, figures 45 and following) were given to a finer precision. That level of precision has been used in the CAD models without rounding to the nearest mm.

There are no CAD-system blocks (stock figures modeled in one place, named, and inserted in other places) or cross-referenced files used in any of these models. Nor are there linked data files. There are no associated script files. The only stored views — one for each file — are the views in each model called open; that view will be invoked automatically upon opening a file. All dimensional data are in meters.

These models are very much dependent upon the data that underlies them; so users should also examine the information about surveying for the NW wing.

Full documentation should have been made as the files were created. That, however, did not happen in all cases. As a result, some of the information here was determined after the actual creation of the files by project director Harrison Eiteljorg, II, in consultation with others.

Finally, the use of alternate, local user-coordinate systems is something made possible by CAD programs that is critical to the effective use of CAD for archaeological work, but it can be difficult to understand the idea. At root it is actually rather simple, but the terminology and the procedures required are off-putting. Therefore, readers would be well-advised to read the short item about these alternate grids here. Alternate user-coordinate systems, when used in these files, are discussed individually, as parts of the documentation of individual files.

AutoCAD files (DWG format)

All DWG files obtained from any CSA work will have a zero layer (0) that contains a copyright statement. When the file is opened, that statement will be visible, roughly filling the window, and, other than the 0 layer, only the Z layer will be thawed and visible. The Z layer should be the current layer when you open the file. Other layers, save 0, will have been frozen, and all layers will have been locked to prevent accidental change. Therefore, a first-time user will need to have examined this document and the information about layers and layer names before beginning to work on the DWG files. (The opening view will be the plan view with all or nearly all material visible when the appropriate layers have been thawed.) Knowledge of AutoCAD's layer-naming system — and, for most files, the CSA Layer-Naming Convention for AutoCAD) — is required to work effectively on the files.

As implied above, there will also be a layer named simply Z in every DWG file. That layer will have no contents. The point is to have a layer that may remain on and be the "current layer" in AutoCAD parlance without having any impact on what is visible on screen. CSA recommends making layer Z the current layer and keeping it the current layer while working with any model. All other layers may then be on/off or thawed/frozen as appropriate for working, and the zero layer (and the copyright statement) may be kept frozen and ignored.

No attempt has been made to tie any of these models to a coordinate system other than the internal one based upon the orientation of the principle axes of the model, not the real-world orientation or position of the Propylaea. That is, each model stands on its own with no necessary relationship to any survey grid. This is the result of the premature end of the project.

All layers on all models have been saved as white/black, and all model entities have been defined as colored by layer. Of course they may be changed for clarity in any way a user may desire once the layers have been unlocked.

I. SE Anta of the Central Building of the Propylaea (PRcbSEan.dwg) — model completed early in 2002

• This AutoCAD model combines surface models of only the southern and eastern faces of the blocks of the southeast anta that have remained in situ with full solid models of the blocks removed for anastylosis (and subsequently replaced) and thus accessible for full documentation.
• This is an AutoCAD model in AutoCAD 2007 format.
• The data for the surface models of the lower portion of the parastas wall were provided in drawings made by Mr. Tanoulas or by someone working under his supervision. The drawings from which the solid models of the upper blocks were generated were also made by Mr. Tanoulas or by someone working under his supervision. The individual block drawings were scanned and used as the bases for this AutoCAD model by Art29, a private contractor.
• Since the blocks that had been removed and documented were then reassembled in the anta, the full anta has been modeled, and all blocks are in the proper relationships to one another. The kinds of careful adjustments to blocks that are the hallmark of Periclean architecture are therefore present in these models, e.g., surfaces that are nearly but not quite vertical.
• Layer names: Making use of the CSA Layer-Naming Convention for AutoCAD, we have applied the convention in the following way, which is simplified from our original approach since the model is incomplete, making some planned layer distinctions unnecessary. Note that layer names are not case-sensitive. Note also that, while serving no particular purpose in this model, we have retained the portion of the layer name defining the dates of the blocks. (In layer-name positions five through 13, all in-situ layers have the same numbers for dates: -04315000; all layers for blocks in position after anastylosis have these numbers for dates: 20015000 — indicating that the blocks were placed in the structure either by the time work on the building had ceased, 431 B.C.E., or at the time of anastylosis, 2001, and that all are still in the structure now.) Note also that not all hatched areas have, as they ought, explicit boundaries in the forms of polylines (AutoCAD's term for an irregular polygon that may but need not be closed).
  • First character:
    • A: Hatching to show a roughly finished area resulting from anathyrosis and, on occasion, an outline of the area with anathyrosis
    • B: Hatching to indicate a beam socket, plus an outline of the socket, to provide dimensional information about the position on the socket for surface models (where depth had not provided in the drawings), or hatching on all the surfaces of the actual socket, as three-dimensionally modeled on solid models
    • D: Hatching to show a damaged area of a block and, on occasion, an outline of the damaged area (Note that there has been no attempt to model any damaged surface in three dimensions but only an indication of the portion of an original surface that has been damaged.)
    • M: Solid models of blocks
    • R: Hatching to show roughly picked surfaces and, on occasion, an outline of the area
    • S: Surface models of individual faces of blocks
  • Second character:
    • I: In situ
    • T: position determined by Mr. Tanoulas in the course of restoration
  • Third character:
    • E: Epistyle
    • A: Anta
  • Fourth character (related to third):
    • B: Epistyle backer, a block not intended to be visible
    • C: Capital
    • I: Interior epistyle block (a block exposed to the interior, as opposed to an epistyle block intended to be seen from the outside of the building
    • X: General (in the case of an anta, for instance, any block in the anta)
  • Fifth through ninth character:
    • Starting date for the item in its current position, with a negative sign in the first position indicating a date B.C.E.
  • Tenth through thirteenth character:
    • Ending date, with 5000 being an indicator that the block remained in that position at the time this work was terminated at the end of 2008 (That is the case for all blocks in this model; so all have 5000 in these positions.)
  • Fourteenth character:
    • underscore only – to separate the following information from the foregoing
  • Fifteenth character and following (not necessarily present in all cases; the surface models of all blocks on the lower courses, those below the course designated 11, are on a single layer):
    • Block labels from the Propylaea work system (N ##x## meaning south wall from the Greek word for south), course number, (x), block number; NAP meaning blocks of the anta of the parastas wall; NAPEK meaning epikranitis blocks of the anta)

Note that beam sockets are parts of the solid models of those blocks that could be fully-modeled as solids; that is, the block, as modeled, includes the socket for the beam. Therefore, the layer for a beam socket in a block modeled as a solid contains only hatching applied to the requisite surfaces to make the socket more obvious. For blocks modeled only as surfaces, the beam socket outline is shown (with hatching) on a layer specifically for the beam socket; the basic block is on a separate layer as a simple surface without modification.

Hatch patterns are applied in the following system:

1. Areas of anathyrosis have been filled with the ar-conc pattern (an AutoCAD-supplied pattern).
2. Raised panels have been filled with a dots pattern (ar-sand in AutoCAD) to indicate a roughly-finished surface. In those instances where the raised panel was very roughly picked, as indicated on the drawings, the pattern is the ar-conc pattern.
3. Damaged areas have been filled with a simple angle-lines pattern. (Note: the edges of broken areas have been drawn as accurately as the underlying data permit, but the rough surfaces resulting from damage have not been modeled. The hatched areas indicate the missing parts of the original block surfaces, assuming the missing portions were regular.)
4. Beam sockets, whether 2- or 3-dimensional have been shown with the pattern called net3 by AutoCAD, a simple mesh pattern.

II. Southeast Column of the central building of the Propylaea (PRcbSEco.dwg) -- model completed in July of 2001

• This AutoCAD model combines solid and surface elements of the SE Anta model (in a single layer called SEANTA and without the hatching or outlines for hatched areas indicating anathyrosis, beam, sockets, and damage) with surface models of each of the drums and the capital of the southernmost column of the east façade. Although the models of the blocks of the SE anta are included, they are here only to provide context for the column; information about the anta blocks must be sought in the SE Anta model.
• This is an AutoCAD model in AutoCAD 2007 format.
• The data for the surface models of the column drums were provided in drawings made by Mr. Tanoulas or by someone working under his supervision. (Mr. Tanoulas personally provided some special documentation for the CAD specialists, taking profiles of a channel in each drum to provide the necessary documentation.) The drawings were scanned and used as the bases for this AutoCAD model by Art29, a private contractor.
• In addition to the surface models of the drums, there are two models with preliminary drawings. One is called PRfl.dwg and the other PRpro.dwg. PRfl.dwg shows the profiles of the flutes provided by Mr. Tanoulas; PRpro.dwg shows the profile of the capital. Each of these files has only a layer or two other than the zero layer.
• There are only a few layers in the PrCSseCo.dwg file; there has been no careful use of the CSA Layer Naming Convention.
• Layers are as follows:
  • COL_DRx##: Column drums, numbered from bottom to top
  • CAP_FLU: Capital block, tops of the flute channels
  • CAP_DAK: Capital block, the daktylion level, with flutes diminishing to the vanishing point
  • CAP-ABA: Capital block, the abacus
  • CAP_ABA_DH: Capital block, hatching to indicate the broken portion of the abacus
  • CAP_ABA_DO: capital block, the outline of the broken portion of the abacus
  • CAP_ECH: Capital block, the echinus
  • SEANTA: Solid and surface models of the SE anta
  • REFS: Miscellaneous reference lines used by the CAD modelers

III. Wall Blocks from the North Wall of the Central Building of the Propylaea (PRcbNOwa.dwg) -- model completed near the end of 2005

• Modeled in this AutoCAD file are 41 blocks that were at one time removed from the north wall of the central building of the Propylaea; most have been returned to the wall during the anastylosis process, but the modeling here represents only the blocks as drawn individually. No effects or observations (e.g., subtle alterations of dimensions or angles of surfaces due to wall inclination) consequent to anastylosis are included. All these blocks could be fully drawn when they had been removed from the wall. All were drawn in traditional mechanical-drafting style with a plan view of each face of the block.
• The drawings were all made by Mr. Tanoulas or by someone working under his supervision. The drawings were copied into AutoCAD for the CSA Propylaea Project by Apostolis Kassios. In some cases Mr. Kassios may have needed to obtain on-site dimensions from the actual blocks to supplement the drawings, but such instances were few.
• The file here is in AutoCAD 2007 format.
• Mr. Kassios drew the plan views of each face and then used them to make full 3D models of each of the blocks. (As always, no dimensions have been included since AutoCAD can retrieve any dimension on command.) When possible, those blocks have been placed in the proper relationships to one another (only in a given course; no relationships between courses were attempted). Users should understand that placing the blocks next to each other in these CAD models does not guarantee that they were related to one another on the original structure as they are related here. In some cases, for instance, placing the blocks next to each other as logic would suggest (corner meeting corner) resulted in one corner matching properly and another being very slightly divergent from its neighbor, perhaps by only a small fraction of a millimeter, but nonetheless not precisely meeting. Further, when two blocks are placed next to one another in a CAD model, the two touching corners share the same point in space. In the real world, that is not impossible but nearly so, especially given the erosion of surfaces since the original shaping of the blocks; so users must bear such issues in mind when using these models to study the building.
• The blocks are shown in groups according to the courses in which they were originally placed, and they are numbered according to the Propylaea system, with course number and block number used in the layer-naming system to show the original labels. Blocks not actually adjacent on the wall are separated by approximately 2 meters in the model; that distance does not imply any particular number of intervening blocks, though the numbering scheme should make the number clear.
• The plan views include views of each side of each block, with the top view considered the base view, the front is drawn as if the block had been rolled onto its back and drawn from above. Similarly, the bottom is drawn as if the block had been rolled once more and is again drawn from above. The back is also drawn as if the block had been rolled onto its front and drawn from above, making the back view effectively upside-down. The two sides are drawn in the same manner, as if the block had been rolled onto one side so that the other could be drawn from above. (This way of approaching the views of the six faces of a block, though standard, may yield considerable difficulty for some. Please see the document about mechanical drawing for further clarification if you wish.)
• This method of drafting, while quite standard, makes it very difficult to imagine the viewpoint for the bottom surface especially, and using AutoCAD's built-in bottom view may confuse a user further. To compare the bottom surface of one of the solid models of a block to the drawing of that surface, use the user-coordinate system named bottom and saved as part of the model; view the solid model of the block in plan view in that UCS (bottom) in one viewport and view the plan drawing of the bottom surface in normal plan view in an adjacent viewport. (The bottom user-coordinate system exists only for this purpose.)
• Since each block was drawn individually, the spacing between views yields front, back, and bottom views that may not align properly from block to block. Only the solid models of the blocks have been related to one another correctly (when possible). Each plan view of the top of a block has been placed in the same location as the top surface of the solid model and will therefore be related to other top/plan views as the blocks are in the model, but the other views of each block have been related to the top view in an arbitrary way (20 cm. apart) that does not preserve the relationships for the various views.
• Some of these blocks have some faces that result from recutting in prior restoration work. The blocks are shown with shading to indicate the recut (and therefore not ancient) surfaces.
• Layer names: Making use of the CSA Layer-Naming Convention for AutoCAD, we have applied the convention in the following way. Note that layer names are not case-sensitive.
  • First character:
    • A: Hatching (on solids only, not plans) to show a roughly finished area resulting from anathyrosis
    • B: Boundaries (on solids only, not plans) of the hatches on layers A...
    • D: Damaged surfaces (on solids only, not plans) that resulted from recutting of the blocks in the modern era
    • E: Boundaries (on solids only, not plans) of those damaged surfaces on layers D...
    • M: Solid models of blocks
    • P: Plans of the faces
    • R: Hatching (on solids only, not plans) indicating roughly picked areas on the solid models (generally not so roughly picked as the anathyrosis areas)
    • S: Boundaries (on solids only, not plans) of the hatches on layers R...
  • Second & third characters:
    • M: the main building (central building) + B: North wall (from the Greek word for north) – no alternates in this model. (These characters could be omitted here, since the model contains only blocks from the north wall of the central building of the Propylaea, but they have been retained.)
  • Fourth & fifth characters:
    • course number (from bottom), with leading zero if necessary
  • Sixth character:
    • "x" to separate course number from block number
  • Seventh & eighth characters:
    • number of the block in its course, with leading zero if necessary (Note that the course numbering and the block numbering are those assigned to the blocks by Mr. Tanoulas and his crew. Neither the numbering system nor the numbers applied were determined by CSA Propylaea Project personnel. Also note that "EP" may be used in place of a block number to indicate the epikranitis.)
  • The beginning eight characters are sufficient for all solid-modeling layers. The face plans, however, are on 6 layers, one for each surface. Therefore, the ninth and tenth characters apply to plan layers only:
    • Ninth character: underscore to separate the remaining characters
  • Tenth character:
    • T: top face
    • N: north face
    • E: east face
    • S: south face
    • W: west face
    • B: bottom face

The face plans are arrayed as if all had been drawn on the same piece of drafting paper, mechanical-drafting style, with the top view aligned in the model (as to elevation as well) with the top of the solid model of the block. The north face is above the top view (in plan view), the south face below, the bottom below the south face. The west face is to the right of the plan view, and the east face to the left. (Each individual view is separated from its neighbor by 20 cm. in real-world dimensions.) As noted above, this drafting convention for showing all faces of a block, though standard, may yield considerable difficulty for some. The page about mechanical drawing provides further clarification.

As a result of this logical positioning of the plan views, looking at more than one block's plan views at the same time can be all but impossible. The drawings will overlap unless the user has a newer version of AutoCAD, one permitting different viewing ports to display different selections of layers. Therefore, examining one block at a time is to be preferred when working with the plan layers.

Hatch patterns are applied in the following system:

1. Rough areas resulting from anathyrosis have been filled with the AutoCAD ar-conc pattern.
2. Roughly picked surfaces have been filled with the ar-sand pattern in most instances. However, more roughly-picked areas that are similar to anathyrosis in terms of finish but are not sunken are indicated by the ar-conc pattern.
3. The ANSI 33 pattern (a diagonal stripe) indicates areas that result from recutting of the blocks and therefore present essentially modern surfaces.

It may be necessary to use the layers in conjunction with the hatches to determine whether the ar-conc hatch pattern indicates anathyrosis or not, since the pattern indicates a rough finish while the layer name identifies the area as sunken.

The decisions about layers are not simple positivist choices; they represent the result of interpretation. One person's rough texture may be another's simpler, not-perfectly-finished surface. Furthermore, Mr. Kassios was sometimes obliged to work only from the drawings, not the blocks themselves. As a result, there are many "facts" represented by layer names that are choices a user should feel free to question.

IV. NW Wing (Pinakotheka) of the Propylaea (PRnwWING.dwg) -- model built in many parts and not finally completed until the project was drawing to a close, with the basic surveying done in October of 2003 and the final model adjustments in July of 2009

• A great deal of information is available about the methods used to generate this model, and readers should check that information before continuing. See the page about surveying methods, also linked from the opening page for the web site.
• This is an AutoCAD model in AutoCAD 2007 format.
• This is a more complex model that the others, save perhaps the model of the roof, because it is composed of information from both the published drawings (Study for the Restoration of the Propylaea, Vol. I, by T. Tanoulas, M. Ioannidou, and A. Maraitou; Athens, 1994, figures 45 and following) and the total-station-survey work. As a result, the information available and the way the information was handled differs for the two walls modeled on the basis of the published drawings (the north and west walls) and the two walls surveyed with the aid of a total station (the east and south walls). For instance, some restorations were attempted on the north and east walls, basing restored surfaces of individual blocks on surviving portions. In addition, horizontal surfaces on protruding surfaces (the tops of the toichobate and orthostate courses and both tops and bottoms of the string course) have been shown but were not measured. They are shown only to prevent hidden-line views from being confusing. Neither such restorations nor the horizontal surfaces were attempted on the west and north walls. Users will therefore need to be especially attentive to all the intricacies of the layer-naming system used here. (Mr. Kanellopoulos did some of the work on this model, but Mr. Eiteljorg is responsible for the finished product.)
• Layer Names: Making use of the CSA Layer-Naming Convention for AutoCAD, we have applied the convention in the following way. Note that layer names are not case-sensitive.
  • First character:
    • B: Beam sockets (only on west and north walls where total-station data were not available to permit 3D modeling of beam sockets)
    • D: Hatching, often but not always with lines or polylines for boundaries, to show surface damage resulting from any one of a number of causes, from weather to falling debris to . . . . With one exception, on toichobate block 6 of the south wall, surface damage is not shown on the east or south wall. However, surviving surfaces are properly modeled; therefore, beam sockets and other cuttings have been modeled without added highlighting of the resulting surfaces.
    • L: Labels, block numbers for each wall, one set per wall (The numbers are those used by CSA and are repetitive, that is, block numbers for each wall begin with 1. Labels have been oriented and placed to be read in elevation view for each wall.) Important Note: the blocks of the south wall often have multiple surfaces that comprise the blocks because of protrusions and recesses, and the drawings of the wall (used to guide the survey work) made it far more reasonable to refer to surface numbers than block numbers. A single sequence of numbers was used for the surfaces, and the number applied to a block is the lowest number applied to the surfaces that comprise the block. The layer named L____SW shows the numbers of both blocks and surfaces. The block numbers are shown in a larger font so that users can clearly see which numbers label blocks and which label surfaces. (The text is .3 m. high for the blocks and only .2 m. for the surfaces.) There are never more than two surfaces per block, and, in each case, the lower number is the block number. Thus, for instance, block 60 includes surface 61.
    • S: Surface models of blocks
    • T: Total station raw data (point numbers at locations specified by the total station) - the data points for the north and west walls are only points taken to permit orienting those walls to the others.
    • NOTE: Both the labels layers and the total station data layers use an alternate system to permit those layers to be avoided or included, as desired, along with standard layers. There are only four L layers and four T layers. In each case the beginning character, L or T, is followed by four underscores and then EW, SW, NW, or WW for east wall, south wall, . . . . It should be possible to use standard layer-manipulation processes to include or exclude these layers in commands to turn on/off, freeze/thaw, etc. along with other layers.
  • Second character:
    • H: Hypothetical: used for added surfaces on east and south walls
    • I: In situ
    • M: Medieval: blocks positioned at some time in the Medieval period, though most likely removed from one position in the structure and moved to the current one.
    • R: Restored: a restored version of a block surface on the east or south wall (generally the block without a beam or socket)
    • NOTE: This system presents the user with two versions of those blocks that have been restored, one as the block now exists (in situ) and one as it probably was prior to the making of the cutting now present (restored).
  • Third character:
    • E: East wall
    • N: North wall
    • S: South wall
    • W: West wall
  • Fourth character:
    • A: Anta
    • B: Block (general wall block)
    • C: Crowning course - capital for anta or column, crowning course for a wall
    • O: Orthostate block
    • M: Lower wall block, above the orthostate and below the string course
    • S: String course
    • T: Toichobate
  • Fifth character:
    • P: Pentelic marble
    • E: Eleusinian marble/limestone
  • Sixth through eighth characters: Block number with leading zero/zeroes, as necessary
    • NOTE: Individual block numbers are not used for layers showing blocks on the west and north walls. There are numbers (shown in the labels layers) so that readers may refer to the blocks by number, but there are no layers using those numbers.
    • NOTE ALSO: Those blocks on the east and south walls that were modeled with automatic processes directly from the database are not on individual layers but are on layers with an A (automatic) in the sixth place. (Some blocks could have been modeled with the automatic procedures but were not. They are shown on layers with block numbers.)

There are several named user-coordinate systems in this model that should be of value to users of the model:

• EWALL - the UCS used when modeling the east wall with the aid of total station data. The data here correspond to the data for E_UCS values in the database (see the web page with documentation for the survey database.)
• NWALL - the UCS used when modeling the north wall with the information from the published drawings. (Note: The published drawings actually use two different user coordinate systems, one with the zero point 1 meter above the other but otherwise identical. All points here are expressed in the lower-set UCS. As a result, points showing an elevation of more than 1 m. will be exactly one meter higher than the number shown on the published drawings.)
• SWALL - the UCS used when modeling the south wall with the aid of total station data. The data here correspond to the data for S_UCS values in the database (see the web page with documentation for the survey database.)
• Three user coordinate systems were required for the west wall because there were three different sets of datum lines used for the drawings.
  • WWALL1 - the UCS for the lower portion of the wall in the interior room of the NW wing. This is the UCS for points below the top level of the string course.
  • WWALL2 - the UCS for the upper portion of the wall in the interior room of the NW wing, from the top of the string course up. (This UCS has its zero point for the Z-axis at the 1-meter level of the WWALL1 UCS but is otherwise identical. Sorting out the UCS applied can be problematic since the minus sign (-) is often not present when, in fact, the dimension shown is the distance below the 0,0,0 point in this UCS.)
  • WWALL3 - the UCS for the outer portion of the south wall, the portion in the forecourt of the NW wing, between the colonnade and the door/window wall. This UCS has the same orientation and zero points for the y-axis and the z-axis as the UCS called WWALL1, but the x-axis has been set 4.979 m. to the left (south) of the WWALL1 x-axis zero point.

In addition, one may use AutoCAD's standard 3D views to see each wall as an elevation drawing, something very useful when trying to see the number applied to a given block. In the "World" UCS, the front view will show the north wall in elevation view, left will show the east wall, right the west wall, and back the south wall.

V. NW Wing (Pinakotheka) of the Propylaea, Roof, as modeled by Chrysanthos Kanellopoulos, based upon the reconstruction by Tasos Tanoulas. (PRnwROOF.dwg) -- model completed in October of 2002

• This is an AutoCAD model in AutoCAD 2007 format.
• This is a model made up almost entirely of solids; so it is both larger and slower to use. Although it may seem that the pieces have been fitted into a kind of simple, repetitive pattern, users should be aware that it is more complex and more subtle than that. In addition, due to some unexplained glitch, the pan and cover tiles running down the ridge to the SW were not in the original model. The comparable tiles from the ridge running to the NW were mirrored and placed there (in layers RIDGETILES2 and COVERTILES2), but they are clearly not in the correct positions. They remain in the model but should be used only for illustrative purposes.)
• Layer Names: This model does not have so many layers that the CSA Layer-Naming Convention for AutoCAD has been deemed necessary. Note, however, that "TILES" exists in all layers that contain tiles and only in those layers; so gross distinctions may be made with that portion of the names. Layers are as follows:
  • CEILINGBEAM
  • CEILINGMOLDING
  • CEILINGPLANKS
  • COFFERPANELS
  • COFFERPLANKS
  • COVERTILES
  • COVERTILES2 (copies that should not be relied upon)
  • HEGEMONETILES
  • NORTHTILES
  • NORTHTRUSSES
  • RIDGETILES
  • RIDGETILES2 (copies that should not be relied upon)
  • SOUTHTILES
  • SOUTHTRUSSES
  • WESTTILES
  • WESTTRUSSE
  • Z

VI. The cornice blocks of the NW wing of the Propylaea. (PRcor.dwg) -- completed in October of 2002

• This is an AutoCAD model in AutoCAD 2007 format.
• This CAD file consists of models of the surviving or partially surviving blocks of the cornice of the NW wing. All the blocks are fragmentary, and the proper reconstruction of the cornice molding shapes was done by Mr. Kanellopoulos with the aid of drawings that had been made previously either by Mr. Tanoulas or a member of his staff or by Lucy Shoe Meritt in the course of her monumental 1936 work, Profiles of Greek Mouldings (Cambridge, MA: 1936).
• The fragments were all numbered by the Propylaea staff, not CSA personnel or Mr. Kanellopoulos. The numbers are all four-digit numbers.
• Layer names: Making use of the CSA Layer-Naming Convention for AutoCAD, we have applied the convention in the following way. Note that layer names are not case-sensitive.
  • First four characters: block number - layers with only block numbers contain the solid models of the actual blocks
  • Alternate for labels showing only block numbers: layer named simply L (Note: labels are to be seen in the plan view.)
  • Fifth character, if used:
    • D: Damage or anathyrosis - hatching to indicate either surface area broken away (angled lines) or anathyrosis (honey-comb)
    • R: Restored - solid model of the portion of the block restored by Mr. Kanellopoulos

Some blocks in this model were terribly fragmentary, with documentation consisting only of a portion of a single surface; so there are some blocks virtually entirely restored, e.g., # 5143.

About this document:

• Title: "Final Report, CSA Propylaea Project: CAD Models
• Author: Harrison Eiteljorg, II and the staff of CSA, Box 60, Bryn Mawr, PA 19010, (e-mail: user nicke at (@) the domain csanet.org; tel.: 484-612-5862)
• Original file name: CADmodels.html
• Revision history: Since this document is part of the CSA Propylaea Project Final Report and has been archived with the Archaeology Data Service, changes should not occur. Serious mistakes may be corrected; if so, clear indications of corrections will be included. First posted: 3 August, 2000. Last updated (formatting only): July, 2012.
• Internet access: This document was first prepared for propylaea.csanet.org, operated by the Center for the Study of Architecture and Harrison Eiteljorg, II. It has been turned over to the Archaeology Data Service for archival preservation.
• Long-term availability: This document or its successors will be maintained for electronic access indefinitely.