What are the characteristics of a 3D train tunnel that you call a 2D map?
Is there a term for searching the answer in Google?
Imagine a car tunnel where trains could ride? Along the tunnel are various cracks, fissures, weak spots, etc. How do I visualize this on paper, the 3D structure must be projected in 2D. Besides that, I can also show the three directions as one in 3-4 rows. I want a word to refer to the kind of map. I’m searching for a word to refer to this kind of map.
What is the closest I have come up with is projection map. Is there a more suitable term for this?
In Japanese, it can be called tenkaizu (, ), but its dictionary or Google translations don’t fit since the term is also used for templates for folding paper.
Is it true that your example is using two separate 2D images to convey 3D information to the reader?
What reminds me of European projection : Instinctively, I
would have called it “a case of European projection”.
According to Wikipedia, an oblique projection is a
simple type
of graphical projection used in producing pictorial, two-dimensional images of three-dimensional objects. It project an image by intersecting parallel
- rays (projectors) from the three-dimensional source object with the
- drawing surface (projection plan).
In oblique projection, parallel lines of the source object produce parallel lines in the projected image. This is a phenomena that could not be described in this work.
Pedantically, the lines are not parallel to the lines in your example image. Please note that the page I linked is refers to Engineering drawings, which are often used as blueprints and need to be pedantically precise.
Your example image is precise on the left (it notes dimensions etc.), but the right image seems to be a visualization, not a blueprint. Also, there is less need for parallel lines in vector images. Right image is not meant for precision yet. Therefore, there is no need for Parallel lines.
If the image you linked is not representative of the whole tunnel, but rather a specific segment of it, the same Wikipedia page lists a second option:
Section views
Projected views (either Auxiliary or Multiview) which show a cross section of the source object along the specified cut plane. In most cases, these views are used in building structures to give more detail than are using regular projections or hidden lines. For example, internal features can be shown with more detail.
I know some people will refer to the image you linked as an oblique projection, but if you are just looking at the image exactly that image would be an oblique view.
What is most important for you is the meaning of words used in many literature.
- “Section view” reveals that it is a “slice” from a more complete part of The Explanation. This is where the “Slice” points are.
- What exactly does “oblique” mean?
What is the 2D map which shows the characteristics of 3D train tunnels?
What does it take to have oblique projection, and what are the results of it?
I got a response from the Engineering Stack Overflow site.
I found a “developed” drawing that
shows a curved surface to a plane that is not unfolded to be held in a plane in an engineering drawing. I am very surprised at how different this is.
Have you ever worked with a Flat sheet of metal? Where does one see the reverse process? You cut out the proper shape(s) and bend them into the correct 3-D shape(s) and join them together.
Where and how to get link for information about NPTELs. In/courses/112103019/36 for some examples – google will find plenty more.
In engineering drawing, a projection is “what you would see if you looked at the object from a distance away, through a telescope.” The current embodiment of this is considered to be the same as your own illustration, but not your own. Please understand the technical definitions.
https://engineering.stackexchange.org/. Or https://stackexchange.org/?p=12044. Also a list of the public platforms for exposing your code to others. http://com/a/16417/12283.com/a
16417/1227617.com.com/a/4001615.com/do?id=340616.
