Building

Linux

Install dependencies (tested on Debian 11)

apt-get install -y \
    build-essential \
    cmake \
    python3 \
    googletest \
    libgtest-dev \
    libeigen3-dev \
    libz-dev \
    python3-matplotlib \
    python3-numpy

Then run

cmake -B build -S . && cmake --build build

You will get an executable lego_technic_main inside the build folder.

Windows

🤔

Usage

To use one of the included models run

./lego_technic_main -path_select <model ID>

There are 33 models included with their corresponding ID:

1 	 line
2 	 cube
3 	 siggraph
4 	 robotarm
5 	 lifter_remove_3
6 	 flyingkite
7 	 bookshelf
8 	 small_crossbow
9 	 normalbow
10 	 plane
11 	 crossbow
12 	 3Dprinter
13 	 bridge
14 	 tokyotower
15 	 tokyo_temple
16 	 spacesation
17 	 temple_head
18 	 triangle
19 	 tian
20 	 triangle_tile
21 	 wind
22 	 castle
23 	 fan
24 	 fail_1
25 	 fail_2
26 	 user_ruihui
27 	 cartoon_car
28 	 bicycle
29 	 BOC
30 	 glass
31 	 wall-e
32 	 wheel
33 	 bird

To use your own model run

./lego_technic_main -path_provide <path to model file>

For example,

./lego_technic_main -path_provide ./my-model-sketch.obj

To visualize the edges run lego_vis_edges.py inside the python folder and pass the unitEdges file to it. For example,

python lego_vis_edges.py crossbow_unitEdges_2.txt