What is ACIS?
What is ACIS?What will 4 Pro do that 4 cannot, thanks to ACIS? Can you show a picture or a result of the difference?VM
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Acis creates 3D solids instead of a collection of polylines and 3D Faces that approximate 3D entities. For instance, if you insert a sphere using the IntelliCAD Sphere command, all you get is an approximation composed of flat entities (select the sphere, then explode it and check the properties of the entities). Apart from creating real solids, BricsCad IntelliCAD Pro provides tools to edit solids and to perform boolean operations (union, subtract, difference) to make complex 3D entities.
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Does this mean that if you have a plane cutting through a sphere, that the intersection is a curve, instead of a string of straight line segments.Is it scalable? I know a person who develops business graphics with Adobe Illustrator. His work in a business card reads just as well as a sign on the side of a truck. Scalable "vector graphics", I think. Is ACIS like that?
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All graphichs produced by intellicad are vector graphics, hence scalable (except for raster images inserted in drawing). Best way to describe the difference between ACIS modeling and surface modeling is: with ACIS you are using virtual mass to create models, with surface modeling you are using virtual cardboard. The difference is not significant by itself, as a cardboard model can be every bit as good as a clay model. The difference lies in the practical modeling part. The boolean operations you can perform on the ACIS solids are much more powerful than those allowed on on surfaces. You can subtract one shape from another to create holes or negative impressions of a shape (try creating a hole in an intellicad surface). It also allows joining shapes, or intersecting shapes. ACIS makes it possible use Intellicad for professional modeling tasks. Surface modeling is not suited for this (unless you purchase a high-end surface modeler like Rhino)
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I'll go for the Pro version.Thank you.
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I must be thick as a brick.Do I have to buy ver. 3.3 all over again to get the free future download of ver. 4? I don't see an option for upgraders like myself.
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You will have to buy the 95$ upgrade + 100$ extra for the Pro version. This upgrade is to a new main version number so there is an upgrade fee, unless you bought the 3.3 license less than six months ago.
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I'm past 6 months.Is this upgrade deal available now? I don't see it in the list under "Buy."I suppose I could buy a new license for 3.3 and get the free upgrade later, all for $199?
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That doesn't really make sense to do, since a full upgrade in your case is 195$. (as compared to 199$)I guess i does suck a bit that the difference between a new license and an upgrade is only 4$, but that is the way of this world. To get new users to register and pay up it is necessary to make them a good offer. Already registered users don't need that much convincing to pay up, hence they don't get as good an offer.I'm sure the upgrade-to-pro-from-previous-version choice will appear when the software is released.
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Well, you may be right that "Already registered users don't need that much convincing to pay up" as long as their complaints based on intensive use are addressed in the future versions. I'm very much looking forward to see the new version 4 and see how many problems have been sorted out. Unfortunately, not much was published so far about the older problems being corrected in the next version.Regards Vaclav
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