The use of layers is highly recommended for complex drawings. Finally, objects may be placed on separate layers (like layers of acetate) that can be selectively made visible or invisible on screen and on the printout. Objects may be grouped into composite objects or combined into a pseudo single object. For example, if you want some text in a coloured rectangle the text must be in front of the rectangle. The sort order can be changed for optimum effect. Overlapping objects have a sort order so that one is the rearmost and another is the foremost (the front object is drawn on top of the back object). Objects also have relationships to each other. An object may have invisible properties such as material specification and cost. You can create an object that has no outline and no fill - so it is invisible! Object attributes are usually independent of size, allowing scaling to high or low magnifications without loss of resolution, and they may be positioned on a page to within one micron. You can change an object's attributes using various types of dialog box, and its size by selecting and dragging.

For example, a rectangle has horizontal and vertical position and size, outline line width and colour, and fill style. A vector drawing contains one or more objects, each of which has a list of properties appropriate for that object. Unfortunately, it takes time to develop the necessary skills! This assignment is an opportunity to initiate skill development with a small project that involves some of the basic tools and techniques common to many vector-drawing packages (raster painting packages require other skills). It is possible to survive with pen and paper, but the use of a Computer Assisted Design (CAD) package can be beneficial in flexibility and speed for those with appropriate experience. 1 Drawing 1: Tools and Techniques in Corel Draw Introduction: what this assignment is about Drawing is an essential skill for Earth Science graduates, who typically produce maps, cross-sections and other diagrams for Theses and other Reports.

Deltacad resizing objects