Examples of 2D Drawing

Using Construction Lines



Flash Example

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2D drawing – construction lines



Creating grid of construction lines


When creating any 2D drawing, you can use a grid of auxiliary construction lines – see Construction Lines. Here, each new vertical construction line is defined by a distance from the previously created construction line. Horizontal construction lines are defined by a distance from the fixed point in the following step. Location of the origin (first point or fixed point) is defined at the cursor nearest grid point in both cases.


To define a location at the grid point nearest to the cursor, simply press the spacebar. The auxiliary mesh of points is useful for initial location of objects. Coordinates of such a location are rounded according to the grid settings. See Grid.


Drawing lines using a grid of the construction lines


To define a location at the intersection of construction lines nearest to the cursor, you can press the key “c”. In this example, a line is created and each segment’s endpoint is located at the intersection of the construction lines. Generally, you can select a method of 2D location from “Snaps” toolbar. Automatic detection is available in many cases.



2D Automatic Detection, Drawing Lines, Filleting, Offsets



Flash Example

Cannot start flash properly.

2D drawing – lines, filleting, offsets



2D filleting


To fillet corners, you can detect them automatically or select both line or arc segments individually. The automatic detection is used in this example. Similar methods are available also for chamfering and creation of corners. See Creating Corners, Chamfers and Fillets.


2D offset, a curve is temporarily integrated from arcs and line segments


Define an offset distance before the offset is created. In this case, offset is created to the object which is temporarily integrated from line segments and arcs. Click the first segment near its outer endpoint. Then a side of the offset is defined. The side is relative to the first selected segment. Such a segment is marked with the star at the endpoint. See also Offsets of Objects.


Drawing a line, automatic 2D location


Finally, both curves (original and offset) are connected at the ends. The location of the points of the connecting lines is detected automatically.


To learn more about various methods of 2D location (definition of line endpoint, arc center, arc endpoint, point on 2D NURBS curve etc), see Selecting 2D Locations.