Computer Aided Design
Second week started with Computer Added Desiging(CAD).I habe never been used any CAD software knowledge before but i was listen about the software results. At the time training and discussed with my instructor was tutorial and start to draw small desging with freecad,openscad and also Solidworks. I started working with Raster and Vector software then started working on 3D software.
Computer-aided design:-
Computer-aided design (CAD) is a computer technology that designs a product and documents the design's process. CAD may facilitate the manufacturing process by transferring detailed diagrams of a product’s materials, processes, tolerances and dimensions with specific conventions for the product in question. It can be used to produce either two-dimensional or three-dimensional diagrams, which can then when rotated to be viewed from any angle, even from the inside looking out. A special printer or plotter is usually required for printing professional design renderings.
The concept of designing geometric shapes for objects is very similar to CAD. It is called computer-aided geometric design (CAGD). CAD is also known as computer-aided design and drafting (CADD).
2D design:-
is the creation of flat or two-dimensional images for applications such as electrical engineering, mechanical drawings, architecture and video games. Blueprints are typically two-dimensional designs that give indications of height and length for construction purposes.
Raster:-
A raster image is an image file format that is defined by a pixel that has one or more numbers associated with it. The number defines the location, size, or color of the pixels. Raster images are commonly .BMP, .GIF, .JPEG, .PNG, and .TIFF files. Today, almost all of the images you see on the Internet and images taken by a digital camera are raster images.
One of the biggest disadvantages of a raster image is the inability to resize the image without getting jaggies or another type of distortion. For example, increasing the size of a small raster image will distort the image because the image editor is resizing each pixel in the image.
Example:-
I got a better understanding of the difference between Vector and Raster(Bitmap). Vector: the quality of the image won’t be affected when we change the dimension of the file. - Bitmap: the image will lose quality easily.
That’s why we need its vector file when project the image in large screens or print it out as posters etc. It’s easy to convert vector files into bitmap files, but not easy to convert bitmap files into vector.
This is the official website of the GNU Image Manipulation Program (GIMP).GIMP is a cross-platform image editor available for GNU/Linux, OS X, Windows and more operating systems. It is free software, you can change its source code and distribute your changes.
Whether you are a graphic designer, photographer, illustrator, or scientist, GIMP provides you with sophisticated tools to get your job done. You can further enhance your productivity with GIMP thanks to many customization options and 3rd party plugins.
Gimp installation in Ubuntu:-
sudo add-apt-repository ppa:otto-kesselgulasch/gimp
sudo apt update
sudo apt install gimp
tapas@tapas:~$ gimp --version
GNU Image Manipulation Program version 2.10.14
File resize and compression in GIMP:-
MyPaint is a free and open-source raster graphics editor for digital painters with a focus on painting rather than image manipulation or post processing. MyPaint is available for Microsoft Windows, macOS, and Unix-like operating systems. It is in some ways similar to Corel Painter.
tapas@tapas:~$ sudo apt install mypaint mypaint-data
Reading package lists... Done
Building dependency tree
Reading state information... Done
tapas@tapas:~$ mypaint --version
INFO: mypaint: Installation layout: conventional POSIX-like structure with prefix u'/usr'
INFO: lib.i18n: POSIX: LANG='en_IN'
INFO: lib.i18n: POSIX: LANGUAGE='en_IN:en'
MyPaint version 1.2.0+gitexport.f62444e
3D design:-
OpenSCAD:-
OpenSCAD is a free software application for creating solid 3D CAD objects. It is a script-only based modeller that uses its own description language; parts can be previewed, but it cannot be interactively selected or modified by mouse in the 3D view.
$ sudo apt-get install openscad
tapas@tapas:~$ openscad -v
OpenSCAD version 2015.03-2
tapas@tapas:~$
FreeCAD:-
FreeCAD is a free and open-source general-purpose parametric 3D CAD modeler and a building information modeling software with finite-element-method support
Design extrude of four cylinder from cube cylinder r=2 h=10 cube= x=10 y=10 h=10
Solidworks:-
SolidWorks is a solid modeling computer-aided design and computer-aided engineering computer program that runs primarily on Microsoft Windows. While it is possible to run SolidWorks on MacOS, It is not supported by SolidWorks. SolidWorks is published by Dassault System.
I am also learning more about 3D design in solidworks.