[bug] fix windows binary tool suffix bug, bump to 0.2.1

Author: fangq

README.md

@@ -4,7 +4,7 @@
 
 * Copyright: (C) Qianqian Fang (2024-2025) <q.fang at neu.edu>, Edward Xu (2024) <xu.ed at northeastern.edu>
 * License: GNU Public License V3 or later
-* Version: 0.2.0
+* Version: 0.2.1
 * URL: [https://pypi.org/project/iso2mesh/](https://pypi.org/project/iso2mesh/)
 * Github: [https://github.com/NeuroJSON/pyiso2mesh](https://github.com/NeuroJSON/pyiso2mesh)
 
@@ -28,8 +28,15 @@ similar to those in the MATLAB/Octave versions of Iso2Mesh.
 
 ## How to Install
 
-* PIP: `python3 -m pip install iso2mesh`, see [https://pypi.org/project/iso2mesh/](https://pypi.org/project/iso2mesh/)
-* PIP+Git: `python3 -m pip install git+https://github.com/NeuroJSON/pyiso2mesh.git`
+* PIP: `python3 -m pip install iso2mesh`
+* PIP+Git (latest version): `python3 -m pip install git+https://github.com/NeuroJSON/pyiso2mesh.git`
+
+MacOS users: you need to run the following commands to install this module
+```bash
+   python3 -m venv /tmp/pyiso2mesh-venv
+   source /tmp/pyiso2mesh-venv/bin/activate
+   python3 -m pip install iso2mesh
+```
 
 ## Runtime Dependencies
 
@@ -48,8 +55,8 @@ downloads these external tools and store those under the user's home directory
 
 ### Build Dependencies
 
-* **Operating System**: `pyiso2mesh` can be built on most operating systems, including Windows, Linux, and macOS.
-  The module is written in pure Python and is portable across platforms.
+* **Operating System**: The module is written in pure Python and is portable across platforms, 
+including Windows, Linux, and macOS.
 
 ### Build Steps
 

iso2mesh/__init__.py

@@ -137,7 +137,7 @@
     barycentricgrid,
 )
 
-__version__ = "0.2.0"
+__version__ = "0.2.1"
 __all__ = [
     "advancefront",
     "barycentricgrid",

iso2mesh/core.py

@@ -804,7 +804,7 @@ def cgalv2m(vol, opt, maxvol):
 
     randseed = int("623F9A9E", 16)
 
-    cmd = f'"{mcpath("cgalmesh")}{exesuff}" "{mwpath("pre_cgalmesh.inr")}" "{mwpath("post_cgalmesh.mesh")}" {ang} {ssize} {approx} {reratio} {maxvol} {randseed}'
+    cmd = f'"{mcpath("cgalmesh", exesuff)}" "{mwpath("pre_cgalmesh.inr")}" "{mwpath("post_cgalmesh.mesh")}" {ang} {ssize} {approx} {reratio} {maxvol} {randseed}'
 
     os.system(cmd)
 
@@ -893,7 +893,7 @@ def cgals2m(v, f, opt, maxvol, *args):
     randseed = os.getenv("ISO2MESH_SESSION", int("623F9A9E", 16))
 
     cmd = (
-        f'"{mcpath("cgalpoly")}{exesuff}" "{mwpath("pre_cgalpoly.off")}" "{mwpath("post_cgalpoly.mesh")}" '
+        f'"{mcpath("cgalpoly", exesuff)}" "{mwpath("pre_cgalpoly.off")}" "{mwpath("post_cgalpoly.mesh")}" '
         f"{ang:.16f} {ssize:.16f} {approx:.16f} {reratio:.16f} {maxvol:.16f} {randseed}"
     )
 
@@ -930,7 +930,7 @@ def getintersecttri(tmppath):
     """
     exesuff = getexeext()
     exesuff = fallbackexeext(exesuff, "tetgen")
-    tetgen_path = mcpath("tetgen") + exesuff
+    tetgen_path = mcpath("tetgen", exesuff)
 
     command = f'"{tetgen_path}" -d "{os.path.join(tmppath, "post_vmesh.poly")}"'
     status, str_output = subprocess.getstatusoutput(command)
@@ -993,7 +993,7 @@ def vol2restrictedtri(vol, thres, cent, brad, ang, radbound, distbound, maxnode)
 
     # Build the system command to run CGAL mesher
     cmd = (
-        f'"{mcpath("cgalsurf",exesuff)}" "{mwpath("pre_extract.inr")}" '
+        f'"{mcpath("cgalsurf", exesuff)}" "{mwpath("pre_extract.inr")}" '
         f"{thres:.16f} {cent[0]:.16f} {cent[1]:.16f} {cent[2]:.16f} {brad:.16f} {ang:.16f} {radbound:.16f} "
         f'{distbound:.16f} {maxnode} "{mwpath("post_extract.off")}" {randseed} {initnum}'
     )

setup.py

@@ -6,7 +6,7 @@
 setup(
     name="iso2mesh",
     packages=["iso2mesh"],
-    version="0.2.0",
+    version="0.2.1",
     license='GPLv3+',
     description="Image-based 3D Surface and Volumetric Mesh Generator",
     long_description=readme,
@@ -28,7 +28,7 @@
         "Decoder",
     ],
     platforms="any",
-    install_requires=["numpy>=1.8.0"],
+    install_requires=["numpy>=1.8.0", "matplotlib"],
     classifiers=[
         "Development Status :: 4 - Beta",
         "Intended Audience :: Developers",