Drawing Commands

About 4 min

Drawing Commands

Drawing commands are used to create various geometric shape entities and are the fundamental operations of CAD drafting.

LINE - Line

Draw line segments, supporting continuous drawing of multiple end-to-end connected lines.

Command Name: LINE
Alias: L

Usage

Command: LINE
Specify point 1: <click or enter coordinates>
Specify point 2 [Undo(U)]: <click or enter coordinates>
Specify point 3 [Close(C)/Undo(U)]: <click, enter coordinates, or press Enter to finish>

Options

Option	Description
`U`	Undo last line segment
`C`	Close to start point (available from point 3 onwards)

Coordinate Input Formats

Absolute coordinates: 100,200 - Specifies the point at X=100, Y=200
Relative coordinates: @50,30 - Offset X=50, Y=30 relative to the last point
Polar coordinates: @100<45 - Relative to last point, distance 100, angle 45 degrees

Example

LINE
0,0
100,0
50,86.6
C

CIRCLE - Circle

Draw a circle by specifying center and radius (or diameter).

Command Name: CIRCLE
Alias: C

Usage

Command: CIRCLE
Specify center: <click or enter coordinates>
Specify second point [Diameter(D)] <last radius>: <click to specify radius point or enter radius value>

Options

Option	Description
`D`	Enter diameter instead of radius

Instructions

Specify the center point
Specify the second point to determine the radius, or enter a radius value directly
Press Enter to use the last radius value

Example

CIRCLE
100,100
50

ARC - Arc

Draw an arc, supporting both three-point arc and center-start-end methods.

Command Name: ARC
Alias: A

Usage

Three-point arc (default):

Command: ARC
Specify point 1 [Center(C)]: <click or enter coordinates>
Specify point 2: <click or enter coordinates>
Specify point 3: <click or enter coordinates>

Center mode:

Command: ARC
Specify point 1 [Center(C)]: C
Specify center: <click or enter center coordinates>
Specify arc start point: <click or enter start point coordinates>
Specify arc end point: <click or enter end point coordinates>

Options

Option	Description
`C`	Switch to center mode

Drawing Methods

Three-point arc: Specify start point → through point → end point
Center mode: Specify center → start point → end point

PLINE - Polyline

Draw a continuous polyline composed of line segments.

Command Name: PLINE
Alias: PL

Usage

Command: PLINE
Specify point 1: <click or enter coordinates>
Specify point 2 [Undo(U)]: <click or enter coordinates>
Specify point 3 [Close(C)/Undo(U)]: <click, enter coordinates, or press Enter to finish>

Options

Option	Description
`U`	Undo last segment
`C`	Close polyline (available from point 3 onwards)

Example

PLINE
0,0
100,0
100,50
0,50
C

ELLIPSE - Ellipse

Draw an ellipse by specifying center point and two axis endpoints.

Command Name: ELLIPSE
Alias: EL

Usage

Command: ELLIPSE
Specify center: <click or enter coordinates>
Specify point 2: <click to specify major axis endpoint>
Specify point 3: <click to specify minor axis endpoint>

Instructions

Specify the ellipse center point
Specify one endpoint of the major axis (determines major axis direction and length)
Specify the minor axis endpoint (determines minor axis length)

Example

ELLIPSE
100,100
200,100
100,150

POLYGON - Regular Polygon

Draw a regular polygon.

Command Name: POLYGON
Alias: POL

Usage

Command: POLYGON
Enter number of sides <4>: <enter number of sides>
Specify center of polygon: <click or enter coordinates>
Specify radius of circle: <enter radius>

RECTANG - Rectangle

Draw a rectangle by specifying two diagonal corners.

Command Name: RECTANG
Alias: REC

Usage

Command: RECTANG
Specify first corner of rectangle: <click or enter coordinates>
Specify second corner of rectangle: <click or enter opposite corner coordinates>

Instructions

Specify two diagonal corner points of the rectangle, and the system automatically creates a closed rectangular polyline.

Example

RECTANG
0,0
100,50

SPLINE - Spline

Draw a smooth spline curve.

Command Name: SPLINE
Alias: SPL

Usage

Command: SPLINE
Specify first point: <click or enter coordinates>
Specify next point: <click or enter coordinates>
Specify next point or <Done>: <continue or press Enter to finish>

DONUT - Donut

Draw a solid donut or circle.

Command Name: DONUT
Alias: DO

Usage

Command: DONUT
Current dimensions: Inner = 0, Outer = 1
Enter inner dimension <0>: <enter inner radius>
Enter outer dimension <1>: <enter outer radius>
Specify insertion point: <click or enter coordinates>

Instructions

When inner dimension is 0, a solid circle is drawn
You can continuously specify multiple insertion points to place multiple donuts

Example

DONUT
0
50
100,100

RAY - Ray

Draw a one-directional infinite ray from a specified point.

Command Name: RAY

Usage

Command: RAY
Specify base point: <click or enter coordinates>
Specify direction: <click to specify direction point>

Instructions

You can continuously specify multiple direction points to create multiple rays from the same base point.

XLINE - Construction Line

Draw a bidirectional infinite construction line.

Command Name: XLINE
Alias: XL

Usage

Command: XLINE
Specify base point: <click or enter coordinates>
Specify direction [Undo(U)]: <click to specify direction point>

Options

Option	Description
`U`	Undo last construction line

Instructions

You can continuously specify multiple direction points to create multiple construction lines from the same base point.

DLINE - Double Line

Draw parallel double lines.

Command Name: DLINE
Alias: DL

Usage

Command: DLINE
Double line drawing, current width = 10
Specify point 1 [Width(W)]: <click or enter coordinates>
Specify point 2 [Undo(U)]: <click or enter coordinates>
Specify point 3 or [Butt(B)/Square(S)/Round(R)/Undo(U)]: <click or select option>
Specify point 4 or [Butt(B)/Square(S)/Round(R)/Close(C)/Undo(U)]: <click or select option>

Options

Option	Description
`W`	Set double line width (available at point 1)
`B`	Butt end join
`S`	Square end cap
`R`	Round end cap
`C`	Close double line (available from point 4 onwards)
`U`	Undo last segment

SOLID - Solid Fill

Draw a triangular or quadrilateral solid fill region.

Command Name: SOLID
Alias: SO

Usage

Command: SOLID
Specify first point: <click>
Specify second point: <click>
Specify third point: <click>
Specify fourth point or <Exit>: <click or press Enter>

DOT - Point

Draw a point marker.

Command Name: DOT

Usage

Command: DOT
Specify point: <click or enter coordinates>

BOX - Rectangular Box

Quickly draw a rectangular box.

Command Name: BOX

Usage

Command: BOX
Specify first corner: <click or enter coordinates>
Specify opposite corner: <click or enter coordinates>

PARALLELOGRAM - Parallelogram

Draw a parallelogram.

Command Name: PARALLELOGRAM

Usage

Command: PARALLELOGRAM
Specify first point: <click or enter coordinates>
Specify second point: <click or enter coordinates>
Specify third point: <click or enter coordinates>

Script Examples

The following are examples of batch drawing using scripts:

; Draw a simple rectangle
LINE
0,0
500,0
500,400
0,400
C

; Draw a circle
CIRCLE
250,200
100

; Draw a polyline
PLINE
100,100
200,100
200,200
100,200
C

Next Steps

Edit Commands - Learn how to modify graphics
Command Reference - View all commands
Script Execution - Batch execute commands