Remote Interface for LeoCAD

This project has the goal to add a remote interface to LeoCAD. It should be possible to add and remove (some) bricks.

Interface

With this version, LeoCAD starts a TCP server on port 29994. Since the interface is textual, a client like telnet is all you need.

Syntax

Line      = Command Newline
Command   = Nop | Hello | Clear | Add
Nop       =
Hello     = "hello" Plate Color Server
Plate     = "plate12x12"
Server    = String
Clear     = "clear"
Add       = "add" Type Color Position Angle
Type      = "3001" | "3003"
Color     = "black" | "blue" | "green" | "red" | "brown" | "yellow" | "white"
Position  = INTEGER INTEGER INTEGER
Angle     = "0" | "90" | "180" | "270"
String    = Symbol { Symbol }
Symbol    = 'a..z' | 'A..Z' | '0..9' | "-" | "_" | "." | "*" | "@" | "%" | "&"
Newline   = "\n" | "\r" | "\n\r" | "\r\n"

Examples

Connect to the running LeoCAD server:

telnet 127.0.0.1 29994

Add a 4*2 brick at the center with a rotation of 90 degree:

add 3001 red 0 0 0 90

Add a 2*2 brick on top of the last:

add 3003 blue -1 0 1 0

And remove all

clear

Semantic

Only a subset of bricks are supported. These are:

• 3001, 2*4
• 3003, 2*2

Only a subset of colors are supported. These are

• black
• blue
• green
• red
• brown
• yellow
• white

The position is in "brick coordinates". It is:

  ^ +------------+
1 | | o  o  o  o |
0 | | o  o  o  o |
  y +------------+
    x------------>
      0  1  2  3

1 ^  _-__-__-__-_
  | |            |
0 | |____________|
  z

The angle is in degrees, only 0, 90, 180 and 270 is officially supported.