From 84f9b9dec6389c0f0f59099850ade04d1a4541b0 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Sun, 3 May 2020 15:25:48 +0200
Subject: [PATCH] Mesh: [skip ci] allow to pass target number to Python
 function Mesh.decimate()

---
 src/Mod/Mesh/App/MeshPyImp.cpp | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/src/Mod/Mesh/App/MeshPyImp.cpp b/src/Mod/Mesh/App/MeshPyImp.cpp
index 08037f771d0a..166849c3eb38 100644
--- a/src/Mod/Mesh/App/MeshPyImp.cpp
+++ b/src/Mod/Mesh/App/MeshPyImp.cpp
@@ -1726,14 +1726,26 @@ PyObject*  MeshPy::smooth(PyObject *args, PyObject *kwds)
 PyObject*  MeshPy::decimate(PyObject *args)
 {
     float fTol, fRed;
-    if (!PyArg_ParseTuple(args, "ff", &fTol,&fRed))
-        return NULL;
+    if (PyArg_ParseTuple(args, "ff", &fTol,&fRed)) {
+        PY_TRY {
+            getMeshObjectPtr()->decimate(fTol, fRed);
+        } PY_CATCH;
 
-    PY_TRY {
-        getMeshObjectPtr()->decimate(fTol, fRed);
-    } PY_CATCH;
+        Py_Return;
+    }
 
-    Py_Return;
+    PyErr_Clear();
+    int targetSize;
+    if (PyArg_ParseTuple(args, "i", &targetSize)) {
+        PY_TRY {
+            getMeshObjectPtr()->decimate(targetSize);
+        } PY_CATCH;
+
+        Py_Return;
+    }
+
+    PyErr_SetString(PyExc_ValueError, "decimate(tolerance=float, reduction=float) or decimate(targetSize=int)");
+    return nullptr;
 }
 
 PyObject* MeshPy::nearestFacetOnRay(PyObject *args)