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Line Basics 3

A tutorial to demonstrate basic line (vector) concepts and modifications.
- The basic 2D tutorial contains:
  - Set ORIGIN point
  - Drawing Lines with Point Polar
  - Create 5 sided polygon with line
  - Trim Two Lines
  - Parallel
  - intersect Snap
  - Circle by 3 points
  - Section cut by line
  - Tickmarks
  - Circle

Start with a blank drawing and select Point|Origin.
Place a point on the screen about where the cross is in the illustration.

Next hit 'V' (vector) and set the first point by hitting SHIFT+: (Point Absolute) and since the default values are 0,0 just hit ENTER.
Then hit Hotkey ; (Point Polar) and enter values shown.
Hit ENTER.

Result.

Next hit ; again and then use the TAB key to toggle into the Angle field, which will still say 90, (it will be highlighted).
Hit the END key to place the cursor AFTER the existing 90.
Add -72 (minus 72 [360 divided by -5]) after the 90.
Hit ENTER.

Result.

Repeat the command by hitting ; and then TAB, END, and add -72 after the value remaining from the last point (18)
Hit ENTER

Repeat the command by hitting ; and then TAB, END, and add -72 after the value remaining from the last point (306)
Hit ENTER

Repeat the command by hitting ; and then TAB, END, and add -72 after the value remaining from the last point (234)
Hit ENTER

Trim Two Lines will Extend 2 sides to a point.

Double-click Trim Two Lines icon and it will stay active until you hit ESC.
Just click each set of lines to Trim/Extend into a star.

Hit CTRL+A to Select All.
Hit 'B' to Combine Lines.
- Lines will only combine that touch at their end points.

With the line combined, it is easy to make a parallel star, choose Parallel from the Line Toolbox and click the star.
Drag a parallel star inside the original.

Dragging the parallel past the center point will reverse the star's orientation.
Select Intersect Snap from the Snap Toolbox and set a point as shown.

Now let's draw a 3 Point Circle.
- Make sure the option is:
With Running Snaps ON (magic wand) with Intersect Snap active (Running Snap Setup) just set 3 points at outer intersections.

Select Section|Section Cut By Line and click on the circle.
In the options that pop up choose "Keep outside section only" and hit OK

Choose Tickmarks from the Line Pop-out.
Enter values shown.
- Small Tickmark value is not important since there is only 1 division.

Click on circle anywhere.

Next Gravity Snap to one of the star's points.
Tickmarks will be placed on the outside of the circle because of the second point.

Next place a Circle with the first point Gravity Snapped to the center of the small circle, and the next point Gravity Snapped to the end of a Tickmark.
- OR use Circle by 3 Points and Gravity Snap to the ends of 3 Tickmarks.
Done!