Some basic questions about DXF files
Posted: Sat Nov 17, 2012 8:08 pm
I am attempting to develop a "dxf2pdf" application (I guess I don't have to tell you what it does It is being written under Linux, but will eventually be ported to Windows.
Note on my background: Luckily, back in school I took a Master's level CS course, called "Computer Graphics" (which I finally get to put to good use!). The term project was an application that shifted, scaled, rotated and displayed a simple house, hopefully in real time. Due to the limited CPU power those days, it was mainly wireframe: since the hidden segment removal was too onerous, I ended up turning it off for a good show.
In short: I am familiar with the part about the 3 geometric transforms.
Having said that, we never covered things like "edges" or "extents". I am not fully clear on the concept of "polyline", as used in the DXF standard. In the textbook (authored by The Father of Computer Graphics himself), there was only one kind of entity: the line segment.
(To be continued)
-Ramon
Note on my background: Luckily, back in school I took a Master's level CS course, called "Computer Graphics" (which I finally get to put to good use!). The term project was an application that shifted, scaled, rotated and displayed a simple house, hopefully in real time. Due to the limited CPU power those days, it was mainly wireframe: since the hidden segment removal was too onerous, I ended up turning it off for a good show.
In short: I am familiar with the part about the 3 geometric transforms.
Having said that, we never covered things like "edges" or "extents". I am not fully clear on the concept of "polyline", as used in the DXF standard. In the textbook (authored by The Father of Computer Graphics himself), there was only one kind of entity: the line segment.
(To be continued)
-Ramon