[Bf-funboard] Suggested list of precision modeling tools

Raindrops From Sky raindrops.fromsky at gmail.com
Sat May 11 17:52:16 CEST 2013


yes, I have already stated that these features would be great for
engineering/archviz projects.

But also notice that a lot of Blender users model non-organic items such as
cars, aircraft, houses and guns.
These features are equally useful to those users as well.

These features cannot "tie down" Blender for those purposes, or make it
unusable for "artistic/organic" projects.
Let the user enable these features from the "User Preferences" panel.

Also, note that SU is no longer a freeware: It is free "only for personal
use".
So we can expect a large proportion of SU users to turn to Blender over the
next few months.

So, over the next few months, many more users would need these features.

****
Doing an equivalent operation in Blender is quite tedious.
Frankly, no one has yet come out with a "how to" wiki, pdf or video
tutorial.



On Sat, May 11, 2013 at 8:50 PM, Nkansah Rexford
<nkansahrexford at gmail.com>wrote:

> You coming from a sketch up background?
>
> I think most of the suggestions are possible in blender, just that it
> doesn't follow the same easier ways done in sketch up I guess.
>
> I think your suggestion has to do with pure architectural and mechanical
> modelling.
>
> The suggestions might fasten blender for architecture works, but they are
> all still achievable in blender, maybe via a longer process.
>
> Rex
> On May 11, 2013 3:04 PM, "Raindrops From Sky" <raindrops.fromsky at gmail.com
> >
> wrote:
>
> > Here is a list of precision modeling tools.
> >
> > 1. Draw a line that passes through a point in 3D space, and constrain it
> to
> > be parallel to another line in 3D space.
> > 2. Draw a line that passes through a point in 3D space, and constrain it
> to
> > be parallel to a plane in 3D space.
> > 3. Draw a line that passes through a point in 3D space, and ends on any
> > point that is on plane in 3D space.
> > 4. Draw a line that passes through a point in 3D space, and constrain it
> to
> > be perpendicular to a line.
> > 5. Draw a line that passes through a point in 3D space, and constrain it
> to
> > be perpendicular to a plane.
> > 6. Extend a line till it “locks” on another point in 3D space.
> >     (i.e., when its end-point has one or two coordinates common with the
> > reference point).
> > 7. Extend a line beyond its end-point by x units.
> > 8. Extend two lines till they meet (to form a V joint).
> > 9. Shorten a line by moving its end-point by x units.
> > 10. If we are given a face, extend a plane from it.
> > 11. Draw an arc that passes from three given points in 3D space.
> > 12. Draw an arc that passes through two points and with a given diameter.
> >
> > I don't know if Blender would allow some of these features, because they
> > are based on SketchUp and SweetHome 3D) where the design philosophy is
> > quite different (since they do not have distinct Object and Edit modes;
> so
> > they are able to make use of vertices and edges from any object in the
> > scene; which is not the case in Blender.).
> >
> > There are some other features worth emulating also:
> >
> > 1.  When we move the mouse in SketchUp, it continuously looks for
> > inferences to surrounding vertices/edges/planes/objects. When the mouse
> > finds an alignment, it is displayed instantly with two different methods:
> >
> >     (a) A dot with different shapes+colors appears at the mouse pointer
> > when it reaches specific points.
> >           For example-
> >           * it will display a green circle for end-points or mid-points
> on
> > a edge,
> >           * It will display a red square for any other point on an edge;
> > and
> >           * It will display an indigo diamond for point on face.
> >
> >           Without such facility, we have to build a lot of temporary
> > geometry to achieve the same result.
> >
> >      (b) When the mouse pointer sligns with any vertex in the scene, a
> > dotted line of appropriate color (Red/Green/Blue)
> >            appears between the pointer to that vertex. This inference
> helps
> > build planes, rectangles and boxes.
> >
> > 2. In the perspective view, the pointer carries a set of three
> > red/green/blue dotted lines (to represent the x, y and z axes).
> >           This gives a better idea of the pointer's true position in 3D
> > space.
> >
> > 3. A PENCIl TOOL that is able to draw lines in 3D space using geometry
> from
> > all objects in the scene.
> >     Currently the knife tool has this functionality, but within a given
> > object. This is a major limitation.
> >     Another limitation is it can divide an existing geometry, but cannot
> > create new geometry in space.
> >
> > All these mechanisms will allow us to speed model mechanical objects with
> > precision.
> >
> > It would be great to have such features for mechanical shapes
> > (engineering/archviz projects).
> >
> > Could be included in GSOC 2013.
> >
> > *If any of the items are not clear, I can send a simulation/video to
> > explain.
> >
> >
> > *
> > *Regards,
> > Narayan
> > *
> > _______________________________________________
> > Bf-funboard mailing list
> > Bf-funboard at blender.org
> > http://lists.blender.org/mailman/listinfo/bf-funboard
> >
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