Menus...

Menu File
Structure of the menu: Sub-menu: NEW
This menu permits to create a new working session.
LTB-LIGHT asks to save changes before closing the active file; then begins a new working session.

Command: PROJECT
This command serves to start a new working file.
LTB LIGHT asks if there is something to save before closing the active file; a new project will be opened.

Command: RECTANGULAR ROOM
The “Rectangular room” dialog will be presented.

dialogroom0

Room shape may be:
  • rectangular with a generic ceiling;
  • L shaped, with flat ceiling;
  • cutted corner (and triangular for extension) with flat ceiling.
In case of L-shaped or cutted corner will be actived two edit field that permit to 'cut' one room corner, following the next figures, in which X=Lenght, Y=Width:
dialogroom1 dialogroom2 dialogroom3 dialogroom4 dialogroom5
Ceiling of a rectangular room may be:
  • flat;
  • single slab (along X-axis);
  • single slab 90° (along Y-axis);
  • double slab (along X-axis);
  • double slab 90° (along Y-axis);
  • barrel vault (along X-axis);
  • barrel vault 90° (along Y-axis);
  • cross vault;
  • dish vault.
Colours may be choosen through the standard palette menu:

colorpalette1

in which is visible the original colour (blue framed) and the active colour (black framed) with its number (ex. #40), its reflection coefficient (ex. r 74) and its RGB components in % (ex. RGB { 79, 99, 40} ).
Command: ROAD
It is possible to automatically draw a road section with (in centimeters/inches) lane number and width, pole distance, sources height, luminaire tilt and bracket length, sidewalks size and the position of the pole respect to these, height and orientation X+of a virtual surface to calculate vertical (X+, Y+, X-, Y-) and semicilindrical (X+) illuminament, and other parameters as the following dialogue:


dialogroad

Sidewalks define the proximity zones and are useful to evaluate the SR parameter.
The "Layout" pop-menu may presents a single side road with left-side or right-side poles, a quinconce pole disposition or a double-side with pole in front or centrals:


dialogroad1 dialogroad2
dialogroad3 dialogroad4

The road surface may be of Class I or II, but it is possible to change the proposed reduced luminance coefficient q0 in the relative edit field.
The calculation grid may be free or may follow the UNI10439, UNI11248/EN13201 or UNI11095 standard. The program permits to introduce the driver age as a parameter in the K multiplier of the veil luminance in the TI glare calculation:

driverage

Checking the “Glare calculation” button the complete law calculation will be performed (observer position, TI calculation, ...).
Inside the lighting source list it is possible to search for models containing some text in their name: typing command+F, the following dialogue will be presented:

To start the Road Optimization Tool, some fields permits to select a range of values from a minimum to a maximum with fixed step (input minimum/maximum/step):
  • source model
  • pole distance
  • source heigth
  • luminaire tilt
  • bracket length
Finally, selecting one or more of luminaire models in catalogue, the program start to calculate all the possible combination of layout (every model on every source heights on every pole distances on every bracket and on every tilt) presenting the results in a dialog:


roadoptimization

The table present a series of column: in order, the number of simulation, the number of source model in the catalog, the source name, the specific power consumption per km/mile, the pole distance, the source height, the luminaire tilt, the bracket, the medium horizontal illuminament Em, the medium luminance Lm, the horizontal luminance uniformity Uo, the center-road luminance uniformity Ul, and, for each observer “i”, the longitudinal lane luminance Lm(i), the horizontal luminance lane uniformity Uo(i), the longitudinal lane luminance uniformity Ul(i) and the lane glare TI(i), the SR(j) and TI(j) (UNI 11248/2011) parameter connected to every sidewalks and the intensity indexex D and G relative to the fixtures.
It is possible to order the rows by a specific columnn value by clicking the column header, or reorder the column order dragging the choosed one in the new position. Finally, it is possible to filter the results editing the threshold-values on the bottom of the window and checkin on the relative button: the simulations that not respect these limits will be hidden.
To simplify this procedure is present a "Class" pop-up menu with the standard road classification that will fill for You the fields.
Furthermore it is possible to fix filtered results: through the button "Delete filtered" the hidden rows will be permanently deleted.
The “Export” button will save the whole table in a tab-delimited file, while clicking the “Ok” button the program exit the optimization result dialog and will build the choosen configuration.

Command: AREA
The “Area” dialog will be presented:


dialogarea

An 'area' represents a parking, square,...
The first section of the dialogue is reserved for the general information of the project.
Next section refers to the geometry of the model: length, width given in the active units and the pavimentation colour, that may be choosen through the standard palette menu:


colorpalette1

in which is visible the original colour (blue framed) and the active colour (black framed) with its number (ex. #40), its reflection coefficient (ex. r 74) and its RGB components in % (ex. RGB { 79, 99, 40} ).
The button "Create surface" permits to build or not the pavimentation surface (uncheck to create a simple source grid).
Follows the lighting source section: the user can select another catalogue from the button "Catalogue", another source from the list, the "Height" of the luminaire in the active units, its "Rotation" in the XY plan and the "Efficency" of the luminaire.
Selecting the specific check box the user can have a 'quinconce' layout. It is also reported the efficency of the selected model.
Inside the lighting source list it is possible to search for models containing some text in their name: typing command+F, the following dialogue will be presented:
Then the dialogue present the calculation data: are chooseable the number of rows of the sources layout, requested illuminament in lux and calculation grid in the active units. The program present also the total number of luminaire to reach the requested lux and the total installed power.
Sub-menu: OPEN...
Command: OPEN...
This command serves to open a new pre-saved working file, while working inside LTB LIGHT.
Selecting “Open” LTB LIGHT asks, if necessary, if the user wants to save the last changes to the active project.
The program, then, show the standard dialog for opening files:


dialogopen

It is also possible to open LTB-LIGHT projects through Drag & Drop procedures.

Sub-menu: OPEN RECENT
This menu present a list of the last opened files, and it is possible quickly open one of it.
Command: CLEAR RECENT
This command clear the list of the recent opened files.
Sub-menu: IMPORT
Command: IMPORT
This command serves to import external objects to a file in LTB LIGHT.
The first menu permits to use drawings from other graphics programs or CAD for further elaboration inside the program, while the following items permits to link LTB-Light project files contained in the folder “LTBLmodels”.

Importing DXF
The importation in DXF format (Drawing eXchange Format), allows to insert bidimensional or tridimensional objects from almost all CAD applications in Macintosh and DOS/Windows environments (AutoCAD, ArchiCAD, DomusCAD, Vectorworks, etc.).
User has to notice that the DXF format contains less information than the ones LTB LIGHT needs to correctly start calculation, so missing information will be assigned by default.
Choosing a DXF file you will see the following dialog:


dialogpolygon

...that permits to set the default conversion for arcs or circles, end the next:


dialogdxfin

... indicating to choose the scale ratio in the “unit conversion” field (LTB Light imports in centimeters) and to centrate the imported elements respect to the actual Coordinate System.
Press "OK"; the file will be automatically converted into the Active Coordinate System and visualized on the screen, and existing levels on the DXF file will be created. For a correct DXF importation, it is important to notice that:
  • if possible, it is better to export DXF files without header, to permit in LTB LIGHT a correct color reading;
  • LTB-LIGHT imports only ARC , CIRCLE , LINE, POLYLINE, 3DFACE and INSERT (BLOCK) entities:
    • lines will be converted to lines;
    • open polylines will be converted to lines, the closed ones will be converted to flat surfaces; the polygonal mesh (POLYLINE of M,N order) will be converted in “mesh” objects;
    • 3D faces will be grouped by layer or by color and converted in “free form” objects;
    • INSERT will be converted in a no-length line and presented as an independent-view circle.
The “As object” button permits to import the drawing as an unique object of type “free” (see Table B): it is important that the drawing must contain only entities of type 3DFACE or POLYLINE, and these must be formed with at last 4 vertices.

Importing PICT
The importation in PICT format (PICTure), allows inserting bidimensional objects from almost all applications in Macintosh environment.
In this option too, the user has to notice that the PICT format contains less information than the ones LTB LIGHT needs to correctly start calculation, so missing information will be assigned by default.
The file will be automatically converted into the Active Coordinate System, placed on the active layer and visualized on the screen.
For a correct PICT importation, it is important to notice that LTB-LIGHT imports only arc, circles, lines and open or closed polygons:
  • lines will be converted to line;
  • open polygons will be converted in polylines, the closed one in faces.
Importing LTB-Light project
Permits to import a saved LTB-LIGHT project in the current project.
Importing through Drag & Drop procedure
It is possible to import vectorial PICT files in the current project through Drag & Drop procedures, both from the System and from other programs.
Command: REVERT
This command serves to recall the last version saved; all of the modifications made at the last use of the SAVED command will be canceled, and it is possible only if the user has made modifications still not saved to the active file.


dialogrevert

If you select "YES", all of the modifications made after the last saving will be canceled, while if you select "NO", the command will be canceled, and you will return immediately to the working windows.

Command: SAVE
This command permits to save a working file in the LTB LIGHT format. The use of this command takes place without communications or presence of the program, but only the automatic saving of the work made until this event.
This item is enabled only if the user has made on the active file modifications still not saved.

Command: SAVE AS...
This command serves to save a copy of the working file in the LTB LIGHT format, following the standard dialog:


dialogsaveas

Command: EXPORT
This command allows the saving of work in different formats to those of LTB LIGHT, for compatibility with other programs of CAD, graphics, text, database, etc... The possibility to exchange information with other applications has the purpose to permit the maximum action freedom for the user in compiling drafts and technical reports, showing the results of the calculations.


dialogexport1

Available export formate are at the following chapters.
Export TEXT, RTF, RTFX format
The program will create a complete calculation report with which it is possible to read numeric results and chromatic and spatial coordinates of all the elements in the project.
If the user has made a selection set, LTB-LIGHT will export information and results only for the selected elements; in the other case the whole project will be registered. If TEXT was selected, the program will export a TEXT file with tabulation, while for RTF/RTFX (Rich Text Format) export the program will use a template (one fore each currency and/or customer) created ad formatted by the user. In the example-file (LTBL.rtf) are present every styles needed for a correct printing of the report, and the user will be able to change them, leaving the number of tabulations and, if possible, the width of the fields.
In the RTF templates, it is possible to insert some automatic information through some codes (case is relevant):
  • #1 = The viewed image;
  • #A = Agent name;
  • #B = The bulb type and the lampholder of the first lighting source;
  • #D = Actual date;
  • #h = Actual time;
  • #H = The installation height of the first lighting source;
  • #L = The lumen installed in the first lighting source;
  • #M = The name of the first lighting source (ex.: for "1234 - Fix.Name - HIT 150W" is "Fix.Name");
  • #N = File name (complete directory);
  • #O = The codex of the first lighting source (ex.: for "1234 - Fix.Name - HIT 150W" is "123");
  • #C = Customer name;
  • #R = Reference and place;
  • #W = The power installed in the first lighting source;
Fields to include in the exportation are selectable by the following dialog:
dialogexport2

Buttons refer to the following dates:
(List of) Flat Surfaces:
Number, Level, Type of surface, Area, Color of the upper/lower side (number, name, reflection coefficient), Calculation grid;
(List of) Openings:
Number, Owner Type, Owner Number, Total glass thickness, Extinction coefficient, Color (number, name, transparency coefficient);
(List of )Lighting Sources:
Number/Reference to the model, Model, Number of Lamps, Lamp type, Lamp label, Lamp socket, Lamp power, Lamp luminous flux, Lamp color, Total installed power, Maintenance factor, X/Y position, Installation height, Pointing (x, y, z/azimuth, zenith); if this field is checked LTB-LIGHT will export in the report the last viewed image in the “Project Source” session;
Detailed report: (for the lighting sources)
Catalogue, Level, anti-glare shader height, anti-glare shader angles, anti-glare grid height, anti-glare grid x,y dimensions;
(List of) Objects:
Number, Level, Type of surface, Color of the upper/lower side (number, name, reflection coefficient), Large Grid [cm], Calculation grid or number of X-Y divisions if a mesh;
(List of) Lines (and Polylines):
Number, Level, Total length, Color number (group), Thickness;
Tunnel:
The complete report as regard tunnel road calcuation will be printed;
Daylight Data:
Place, Latitude [°,’], Day, Month, Hour, Direct Radiation [W/m2], Diffuse Radiation [W/m2], Albedo [%];
Quality parameters:
For each user surface: Number, Minimum horizontal illuminance, Maximum, Mean, Minimum/Mean illuminance ratio, Minimum/Maximum illuminance ratio, Mean/Maximum illuminance ratio; if this field is checked LTB-LIGHT will export in the report the last viewed image in the “Results” session;
Number of quality fields:
The program will prepare the number of quality fields relative to some surfaces the user want to insert in the report;
Plant info: (for the roads)
Road width, sources layout type, sources inter-distance, sources height, source beam, source beam tilt angle, luminaire label, bulb type;
Estimation:
prizes for each fixture and each special piece, in the currency exportable to the estimation, are saved in the same folder of the LTB-Light source catalog (ex.: “Fixtures”) in a text file with the same name of the catalog and the “.prz” extension (ex.:”Fixtures.prz”). This file must contain the same list of lighting sources as in the LTB-Light catalog, and will be filled by the following fields, separated by tabulations:
  • element description (it must be the same character string with which LTB-Light recognize the element – to export in text format these identifying strings for a whole catalog, see “Catalogs manager
  • prize in the first currency (ex.: “English” -> £)
  • prize in the second currency (ex.: “Italian” -> €)
  • prize in the third currency (ex.: “German” -> €)
Table A Prizes format
Description currency 1 currency 2 currency 3 .... currency n
Fixture #1 10.6 8.44 100.5 ... 128.7
Fixture #2 33.6 456.9 345.1 ... 789.0
... ... ... ... ... ...
Fixture #m 236.9 16.8 444.8 ... 100.5

Only viewed elements will be exported, and in particular:
  • for each line and polyline: Number, Group (color), Description, Length, Quantity, Prize, Total;
  • for each special piece (to select manually): Number, Image (if saved), Description, Quantity, Prize, Total;
  • for each installed lighting source model: Progressive number (1, 2, …) and local reference (A, B, …), Image (if saved), Description, Image (if saved), Description, Total power, Quantity, Prize (if saved), Total.
Road classification accordig to EN13201:
Tables regarding road classification following EN13201 will be printed;

The software, finally, will automatically update the “LTBLsummary” database (saved in the same LTB-Light folder) filled with the list and the summary data of the RTF, RTFX or TEXT exported projects.

Export DXF format
Selecting “DXF” from the sub-menu the selected element will be saved in DXF format or, if no selection is present, the whole project:
  • translating lines in LINE elements;
  • faces in POLYLINE elements;
  • furniture and free objects will be “exploded” in 3DFACE elements, each put on a layer whose name is that one of the starting element plus a progressive suffix (Es. starting layer = ‘Walls’ ; ending layer = ‘Walls#o1’ ;...); the other object type will be exported as POLYLINE mesh;
  • lighting sources blocks will be “exploded” in 3DFACE elements, each put on a layer whose name is that one of the starting element plus a progressive suffix (Es. starting layer = ‘Projectors’; ending layer = ‘Projectors #s1’ ;...).
In the result session, the exportation will involve numeric fields and iso-value curves, in the other case the user will be prompted to assign the exportation scale (from centimeters/inches to…):


dialogdxfin

The “Explode obj.” Button permits the objects exportable as poly-mesh to be “exploded” in 3DFACE elements.

Export in JPEG format
Selecting “JPEG” from the sub-menu, a JPEG image clipped from the screen will be saved. JPEG specification save setting will follow:


dialogjpeg

Export in PICT format
Selecting “PICT” from the sub-menu, a vectorial and/or bitmapped-PICT file clipped from the screen will be saved.
Export in PDF format
Selecting “PDF” from the sub-menu, a vectorial PDF file clipped from the screen will be saved.
Export SORG, Source Catalogue
The program exports data relative to all the lighting sources in the active project, creating a new source catalogue.
Export PICS, a PICT sequence
The program export a “Number of step” pictures obtained makeing a rotation around the Global Coordinate Z-axis at a fixed “Angular step”, following the dialogue:


dialogpictsequence

Command: PAGE SET-UP
This command allows you to define the dimension of the sheet and the other characteristics relative to printing the documents.


dialogpagesetup

For further information, consult your printer manual.

Command: PRINT
This command allows the Main Window contents to be printed.
Buttons or pop-up menus in the standard printing dialog permits to optimize printing, according to some program facilities.
With LTB LIGHT, it is possible to personalize printing according to some parameters:
Edit field:
  • header: a text line at the top of the sheet will be printed, divided in three fields, left, center, right separated by the “@” control character;
  • footer: a text line at the bottom of the sheet will be printed, divided in three fields, left, center, right separated by the “@” control character (the rightmost field is always occupied by the program name);
Check box:
  • Optimize to page: adjusts the view window at the printing sheet;
  • Center in page: center the view window in the printing sheet.
dialogprintpref

In the edit fields, it is possible to insert some information through certain controls:
  • #D = Actual date;
  • #H = Actual time;
  • #N = File name (complete directory).
  • #C = Customer name.
  • #R = Reference and place.

Menu File