by DrPR » Thu Dec 06, 2018 9:55 pm
I started today to create a fully detailed 2D starboard broadside drawing of the forward superstructure (a 312 Mbyte 3D drawing). The program will save 2D drawings from 3D files, with hidden line removal. I have done some of this before and I knew that the resultant 2D files can be 10x the size of the 3D files - lots of duplicate lines. All those pipes and cables produce bazillions of short line segments. I can also have duplicates removed during the 3D to 2D process, but experience has shown me that this can be a bit too aggressive and necessary lines are also removed.
My normal procedure is to create the 2D file and use it as a template drawing that I trace over on new layers, allowing me to select the lines I want and ignore others. Then, after the trace over is complete I delete the original 2D output from the 3D drawing to reduce file size. It is a lot of work, but I get really good 2D drawings this way.
But ...
I started the 3D to 2D conversion at 1:00 PM this afternoon. It is now just about 7:00 PM, and the program says it is 3% done! At this rate it will take 200 hours (8.3 days) to complete! And this is just one of dozens of 2D drawings I want to make. I'll let it run overnight and see how far it gets.
I may have to do this in many parts, little bits of 2D drawings that I piece together later.
Phil
I started today to create a fully detailed 2D starboard broadside drawing of the forward superstructure (a 312 Mbyte 3D drawing). The program will save 2D drawings from 3D files, with hidden line removal. I have done some of this before and I knew that the resultant 2D files can be 10x the size of the 3D files - lots of duplicate lines. All those pipes and cables produce bazillions of short line segments. I can also have duplicates removed during the 3D to 2D process, but experience has shown me that this can be a bit too aggressive and necessary lines are also removed.
My normal procedure is to create the 2D file and use it as a template drawing that I trace over on new layers, allowing me to select the lines I want and ignore others. Then, after the trace over is complete I delete the original 2D output from the 3D drawing to reduce file size. It is a lot of work, but I get really good 2D drawings this way.
But ...
I started the 3D to 2D conversion at 1:00 PM this afternoon. It is now just about 7:00 PM, and the program says it is 3% done! At this rate it will take 200 hours (8.3 days) to complete! And this is just one of dozens of 2D drawings I want to make. I'll let it run overnight and see how far it gets.
I may have to do this in many parts, little bits of 2D drawings that I piece together later.
Phil