Shapes can be compound; in other words, shapes made up of more than one spline. You will use the 2D shapes to create 3D walls, a roof, interior trim, a bench, and a lamp post.
Two methods of wall creation are presented; extruding a floor plan (a view from above) to a height and extruding wall elevations (front view, side view, and so on with window and door openings) to a given thickness.
You will take advantage of the ability of your 3D application to use References, or clone objects. These are objects with a one way link back to the original. When you change the original, the Reference changes, but you can change the Reference (such as adding an Extrude modifier, for example) without having it pass the changes back up to the original.
The shapes in the right column of the Top view port are Reference clones of the originals in the left column. This process allows easy editing of the original 2D shapes in the left column, later in the exercise, to affect the 3D objects created by modifying the Reference clones.
If you are familiar with AutoCAD, you will be pleased to learn that when lofting or extruding, MAX handles compound shapes in a manner similar to ACAD's "normal" hatching mode.
For nested, non-overlapping splines in a single shape, 3D Studio MAX starts at the outer spline and creates a solid mesh to the next internal spline. From the first internal spline, MAX creates a void to the next internal spline and continues creating solid, void, solid, as deeply as the splines are nested.
We highly recommend you use this to your advantage by creating complex cross-section shapes with little system overhead, then lofting or extruding into the final 3D object. You can create compound shapes by using the Start New Shape check box when drawing 2D primitives or by collapsing shapes to an Editable Spline and using the Attach option to combine individual shapes into one.
About the Author
Dan has been writing articles for nearly 5 years. Come and take a look at his latest website over athttp://atlanticdvdstorage.com which helps people find the bestAtlantic Dvd Storageand info they are looking on Media Storage Furniture.
"Revit", which stands for 'revise instantly', is infiltrating into the AEC industry and is encroaching on AutoCAD. Top-notch architectural firms and construction companies rely on Revit Architecture when precision and efficiency are of utmost priority. Members of Global Fraternity of Architects (GFA) and industry experts affirm that Revit is the "future". Despite all the bold assertions about Revit and its innovative features and flexibility, the scenario remains intact - architectural designers still slip into old "AutoCAD habits" when using AutoCAD Architecture & AutoCAD MEP. AutoCAD precision is great for mechanical or industrial application. "AutoCAD is a great tool for some things, but too many things can be "faked" with it", concerns a veteran architect.
What does he indicate actually? Will Revit Architecture be able to replace AutoCAD? How does the Global Fraternity of Architects view the future of AutoCAD and Revit? Architectural Evangelist, a non-profit initiative of BluEnt in collaboration with the Global Fraternity of Architects, exchanges views with the veteran architects and experienced users to endorse a clear picture to enable all architects, designers and engineers to make informed decisions.
Revitology - A Distinctive "Ism" in Architecture Industry Associative, Parametric, rendering output, animation output, formula driven aspects for automation, performance based information, open GL interface, real line weight screen rendition (no more color coded line thicknesses), parametric families, 3D environment - are the much discussed terms in Revitology. Here is a glimpse at each:
Parametric Change Management
The Parametric flexibility offered in Revit is compelling. During the design process, Revit Architecture's parametric change management automatically keep the architectural 2D drawings updated with the integral 3D model, resulting in early phase collision detection and generating high-quality, photo-realistic design visualizations.
3D Environment
3D models provide far more effective communication of design intent than 2D apps. Unlike 2D application, 3D model provides high resolution view. When you encounter a design conflict that requires complex resolution, you can zoom the critical parts including facade, joint sections, supporting structure, etc. and have a closer look all around.
Compatibility of File Import-export
Revit Architecture can import, export and link varied types of files including DWG, DGN, etc.
Automated 2D Floor Planning Tools
Floor planning is the pivotal component in a construction document set. Revit's smart building components and 3D symbol expedite floor planning and schedules. A typical CAD program can't match the quality and speed of Revit's floor planning tools.
Automatic Sheet Set Management
Revit automatically scales dimensions, text, annotation tags, linetypes and hatch patterns based on the viewport's scale. As sections, elevations, details are placed on a sheet they are automatically numbered and their reference labels are updated in the plans, sections or elevations that reference them.
Optimization of Schedule and Cost
Once the developer obtains a Bill of Quantities (BOQ) either using quantity takeoff or from a standard library, Revit enables them to prepare accurate project estimates with a detailed rate analysis process, manage tenders, administer the contract, manage formal change orders, conduct field inspections and finally closely track construction to determine whether it is on schedule and adheres to budgets.
Why Should You Revit(alize) Your Firm?
"AutoCAD was originally designed for the manufacturing/mechanical design industry...Revit was built for architects from day one", corroborates Shobhit Baadkar, Principal, TITAN AEC. Agreed Ricardo Khan, Integrated Construction Manager, Mortenson Construction, "Revit is set up for the AEC industry, while AutoCAD is too broad of a tool". Comparing Revit with AutoCAD is like "sculpting with a hammer and chisel vs. sculpting with a big lump of clay on a spindle", symbolizes Michael Coston, Project Manager/VDC-BIM Architect. He continues Revit allows a team to mold the sculpture simultaneously and monitor the developing results completely in a 3D environment. It brings together effective synergy of plans, sections, elevations, schedules, etc. "Of every construction project in the world, the owner spends 5% on design and 95% on construction. Surprised to the fact the success of the later depends on the former. Revit can identify the potential spatial conflicts and forecast the building performance at the early stages of design more efficiently than AutoCAD. We see BIM process as the main way forward the AEC industry, and Revit works as the backbone of the BIM process", avers Ravi Khanna, MRICS, India Head, Brack Capital Real Estate.
"Revit allows for a higher degree of collaboration and communication, and vastly improves a team's ability to be better coordinated", substantiates Gary McLeod, BIM Provocateur. "The in-built flexible features and parametric facilities in Revit offer the project team greater agility and help them make informed decisions, synchronized design, and accurate construction documents. A successful BIM implementation results in well-managed RFQs, accurate quantities, change management (automatic changes), earlier visualization, detection of potential spatial conflict before construction, better project planning using 4D and 5D techniques, improved energy analysis and collaboration with different project disciplines. BluEnt believes that Revit offers clear advantages for all project stakeholders and is therefore keen to provide 100% Revit solutions to its clients", corroborates Sajeel Khanna, Director- Outsourcing, BluEnt, Global Architecture and Technology.
He is a seasoned architect and construction project management consultant with over 9 years of experience. Having executed several multi-million dollar construction projects, he presently manages an architectural studio and provides consultancy services to top builder firms. His team is responsible for the design and drafting of highly functional buildings.
As you know, no scale is used in AutoCAD drawings. Drawing models are prepared with real dimensions and scale is given during the print-out. In order to do this, print Plot… command is used from File menu. Plot dialog box will appear (Fig.1). You can take print-outs according to the scale you want by setting correct values in mm ve units boxes inside Plot scale part, which is in Plot Settings tab.
In the example, which is shown in figure, it is set that every 10 units is seen as 1 mm in the print-out, thus 1=10 relation is used. In table.1, you can find plot scale relationships according to several units (m, cm or mm), and scales (1/100, 1/50 veya 1/20) that can be used by the user.
Table.1
According to the units and print-out scales chosen by the user, in some cases, print-out may not be at the desired quality. In order to correct the print-outs, some command has to be used or some system variable has to be adjusted to some certain values. These commands and variables are explained hereunder.
Text Height
In general practice, all text should be at a definite height. In order to accomplish that, a certain text height values should be used in the drawing model. These values depend on the units and scales chosen by the user. For example, Text height values that has to be used in the drawing model, to get text height of h=3 mm in the print-out, are shown in Table.2.
Table.2
In order to calculate any other h text height, you can multiply the text height values given in table.2 by h/3.
Hatch scale
When Hatch command is called, Boundary Hatch and Fill dialog box appears
By using various settings in this dialog box, you can change the hatch properties. However, if the value at scale box is not chosen properly, hatch in the print-out may look too dense or too rare. For various units and scales, suggested hatch scale values are given in Table.3.
Table.3
Dimscale
As you know, in order to manage the dimensioning operations in AutoCAD, Dimension menu (or Dim command in the command line) is being used. There are several system variables for modifying the various properties of dimension objects. Among these variables, probably the most important one is Dimscale (dimension scale) variable. In order for the dimension entities to look proper in the print-outs, appropriate values for Dimscale variable is shown in Table.4.
While drawing is made, as one of the values are set from the table to the Dimscale variable, other system variables can be also modified according to the user's demands.
Ltscale
As you know, there are several line types in AutoCAD (dash, dash dot, dot….), if the LTSCALE system variable, which determines how these dashes will look like in the print-out, is not set properly then dashes and dots may look too dense like a continuous line or too rare in the print-out. In order for different line types to show up properly in the print-outs, appropriate values that should be assigned to Ltscale variable are shown in Table.5.
[simpleaffiliate source="chitika" results="0"][/simpleaffiliate] Difference between AutoCad 2011 and AutoCad 2011 Architecture/Electrical/Mechanical?
I want to buy AutoCad, but there are so many versions. THEN, there is a version that appears to be just AutoCad (without any concentration such as electrical, mechanical, etc. Does that mean it has less features or all of the other feature combined?
AutoCAD has special drafting software for each industry. All are equally powerful, but each version is specific to the industry it was programmed for. The main differences in each AutoCAD software program are in the features included. Some examples of differences are: streamlined commands, blocks, editing and dimensioning tools.
Working with a specific version should make it easier for design and documentation for that discipline, compare to using the "regular" version of AutoCAD, which will do everything the others will but without the specialized bells and whistles of each.
Have a look at the links for a brief explanation of each.
