occBasicTclSamples

Very basic OpenCASCADE examples that compile with g++

Installation

Debian 11 (bullseye) was used as operating system.

sudo apt-get install g++ cmake cmake-curses-gui
sudo apt-get install tcllib tklib tcl-dev tk-dev libfreetype-dev libxt-dev libxmu-dev libxi-dev libgl1-mesa-dev libglu1-mesa-dev libfreeimage-dev libtbb-dev libgl2ps-dev
sudo apt-get install doxygen graphviz
sudo apt-get install libavcodec-dev libavformat-dev libavutil-dev libopenvr-dev libdraco-dev libeigen3-dev
sudo apt-get install libx11-dev rapidjson-dev ffmpeg

* Download OpenCascade from https://github.com/Open-Cascade-SAS/OCCT/releases.
  wget https://github.com/Open-Cascade-SAS/OCCT/archive/refs/tags/V7_8_1.zip


	user> mkdir opencascade
	user> cd opencascade/
	user> cp ~/Downloads/opencascade-7.1.0.tgz .
	user> tar -xvzf opencascade-7.1.0.tgz
	user> mkdir install
	user> mkdir build

# https://github.com/tpaviot/oce/issues/744

# whether use optional 3rdparty or not
set (USE_TK        ON  CACHE BOOL "${USE_TK_DESCR}")
set (USE_FREETYPE  ON  CACHE BOOL "${USE_FREETYPE_DESCR}")
set (USE_FREEIMAGE ON CACHE BOOL "${USE_FREEIMAGE_DESCR}")
set (USE_FFMPEG    ON CACHE BOOL "${USE_FFMPEG_DESCR}")
set (USE_OPENVR    OFF CACHE BOOL "${USE_OPENVR_DESCR}")
set (USE_RAPIDJSON OFF CACHE BOOL "${USE_RAPIDJSON_DESCR}")
set (USE_DRACO     OFF CACHE BOOL "${USE_DRACO_DESCR}")
set (USE_TBB       OFF CACHE BOOL "${USE_TBB_DESCR}")
set (USE_EIGEN     OFF CACHE BOOL "${USE_EIGEN_DESCR}")

* Compile:
	```
	user> make
	```
* Install:
	```
	user> make install
	```
* Add the OpenCascade libraries to your library path:
	```
	root> cd /etc/ld.so.conf.d/
	root> echo '/path_to/opencascade/install/lib' > opencascade.conf
	root> ldconfig
	```

	```
	export CASROOT=/usr/local/bin
	export LD_LIBRARY_PATH=/usr/local/lib/:$LD_LIBRARY_PATH
	```

• occBasicSamples

   user> git clone https://github.com/quirxi/occBasicSamples.git
   user> cd occBasicSamples/src
   user> rm include lib path_to_OpenCascade_*
   user> ln -s ../../opencascade/install/lib/ lib
   user> ln -s ../../opencascade/install/include/ include
   user> cd Box
   user> make
   		g++ -c -pipe -O3 -std=c++11 -Wall -W -g -D_REENTRANT -I../include/opencascade -o main.o main.cpp
   		g++  -o aBox.exe main.o -L../lib   -lTKernel -lTKPrim -lTKTopAlgo -lTKSTL -lTKVRML -lTKBRep -lTKG3d -lTKMesh
   user> ./aBox.exe 
  

Available examples

How to run

    Paste the TCL folder to the following location: 

```

sab@SH4D0W6:/usr/local/share/opencascade/samples/tcl$ ls ANC101.tcl DataExchangeDemo.tcl logo2019.tcl Penrose.tcl
bottle.tcl dimensions.tcl markers.tcl pathtrace_ball.tcl raytrace.tcl xde.tcl cad.tcl drill.tcl materials.tcl pathtrace_cube.tcl Readme.txt
cpu.tcl MBBGehauseRohteil.tcl pathtrace_materials.tcl snowflake.tcl vis_pbr_spheres.tcl cutter.tcl ModelingDemo.tcl pencil.tcl spheres.tcl VisualizationDemo.tcl

```

Dir list --- > iges images occ step stl vrml src

```
/usr/local/share/opencascade/samples/tcl/


    cd /usr/local/share/opencascade/samples/tcl/
    DRAWEXE and press Enter
    source ANC101.tcl
```

Up to now there are examples for following basic shapes and tcl_script available:

ANC101:

markers:

bottle:

materials:

dimensions:

cad:

snowflake:

MBBGehauseRohteil:

spheres:

cpu:

ModelingDemo:

cutter:

DataExchangeDemo:

vis_pbr_spheres:

drill:

VisualizationDemo:

Penrose:

pencil:

References

• https://github.com/quirxi/occBasicSamples

Fix library errors

```
git clone https://github.com/Tpj-root/occBasicTclSamples.git 
cd occBasicTclSamples/src
make
```

Box:

Circle:

Cone:

Cylinder:

Sphere:

Torus:

How to remove all files OpenCASCADE

```

sudo rm -rf /usr/local/share/doc/opencascade sudo rm -rf /usr/local/include/opencascade sudo rm -rf /usr/local/share/opencascade sudo rm -rf /usr/local/lib/cmake/opencascade sudo rm -rf /usr/local/lib/

sudo rm /usr/local/bin/draw.sh sudo rm /usr/local/bin/custom_gcc_64.sh sudo rm /usr/local/bin/env.sh

sudo rm /usr/local/bin/DRAWEXE

```