Fix various typos

Found via `codespell -q 3 -S ./src/external,./src/vcglib,./src/plugins_unsupported/external,./unsupported  -L ba,childs,hist,lod,strutture,vertexes`

src/README.md

@@ -41,7 +41,7 @@ On __osx__ some plugins exploit openmp parallelism (screened poisson, isoparamet
 
 On __Windows__, we suggest to build meshlab using QtCreator. Before trying to build, you should:
 
- * install VisualStudio >= 2017 with the C++ developement package;
+ * install VisualStudio >= 2017 with the C++ development package;
  * install Qt >= 5.12 and QtCreator.
 
 then, open the CMakeLists.txt file and try to build MeshLab.

src/external/openkinect/examples/cppview.cpp

@@ -219,7 +219,7 @@ void DrawGLScene()
 
 void keyPressed(unsigned char key, int x, int y)
 {
-	/*  FreenectDeviceState::getState() doesnt really work as expected */
+	/*  FreenectDeviceState::getState() doesn't really work as expected */
 	//double freenect_angle = device->getState().getTiltDegs();
 
 	if (key == 27) {

src/meshlabplugins/decorate_raster_proj/decorate_raster_proj.cpp

@@ -420,7 +420,7 @@ void DecorateRasterProjPlugin::updateDepthTexture(QGLContext* glctx, MLSceneGLSh
 void DecorateRasterProjPlugin::updateCurrentRaster( MeshDocument &m, QGLContext* glctx, MLSceneGLSharedDataContext* ctx)
 {
     // Update the stored raster with the one provided by the mesh document.
-    // If both are identical, the update is simply skiped.
+    // If both are identical, the update is simply skipped.
     if( m.rm() == m_CurrentRaster )
         return;
 

src/meshlabplugins/edit_align/align/align_parameter.cpp

@@ -54,7 +54,7 @@ void AlignParameter::AlignPairParamToRichParameterSet(const AlignPair::Param &ap
   rps.addParam(RichBool("SampleMode",app.SampleMode == AlignPair::Param::SMNormalEqualized,"Normal Equalized Sampling","if true (default) the sample points of icp are chosen with a distribution uniform with respect to the normals of the surface. Otherwise they are distributed in a spatially uniform way."));
   rps.addParam(RichFloat("ReduceFactorPerc",app.ReduceFactorPerc,"MSD Reduce Factor","At each ICP iteration the Minimal Starting Distance is reduced to be 5 times the <Reduce Factor> percentile of the sample distances (e.g. if RF is 0.9 the new Minimal Starting Distance is 5 times the value <X> such that 90% of the sample lies at a distance lower than <X>."));
   rps.addParam(RichFloat("PassHiFilter",app.PassHiFilter,"Sample Cut High","At each ICP iteration all the sample that are farther than the <cuth high> percentile are discarded ( In practice we use only the <cut high> best results )."));
-  rps.addParam(RichBool("MatchMode",app.MatchMode == AlignPair::Param::MMRigid,"Rigid matching","If true the ICP is cosntrained to perform matching only through roto-translations (no scaling allowed). If false a more relaxed transformation matrix is allowed (scaling and shearing can appear)."));
+  rps.addParam(RichBool("MatchMode",app.MatchMode == AlignPair::Param::MMRigid,"Rigid matching","If true the ICP is constrained to perform matching only through roto-translations (no scaling allowed). If false a more relaxed transformation matrix is allowed (scaling and shearing can appear)."));
 }
 
 void AlignParameter::RichParameterSetToMeshTreeParam(const RichParameterList &fps , MeshTree::Param &mtp)

src/meshlabplugins/edit_pickpoints/editpickpoints.cpp

@@ -89,7 +89,7 @@ void EditPickPointsPlugin::decorate(MeshModel &mm, GLArea *gla, QPainter *painte
 		currentModel = &mm;
 	}
 
-	//We have to calculate the position here because it doesnt work in the mouseEvent functions for some reason
+	//We have to calculate the position here because it doesn't work in the mouseEvent functions for some reason
 	Point3m pickedPoint;
 
 	if (moveSelectPoint)
@@ -99,7 +99,7 @@ void EditPickPointsPlugin::decorate(MeshModel &mm, GLArea *gla, QPainter *painte
 				currentMousePosition.y(),
 				pickedPoint[0], pickedPoint[1], pickedPoint[2]); */
 
-				//let the dialog know that this was the pointed picked in case it wants the information
+				//let the dialog know that this was the point picked in case it wants the information
 		bool picked = Pick<Point3m>(currentMousePosition.x(), currentMousePosition.y(), pickedPoint);
 		pickPointsDialog->selectOrMoveThisPoint(pickedPoint);
 

src/meshlabplugins/edit_pickpoints/pickpointsDialog.cpp

@@ -103,7 +103,7 @@ PickedPointTreeWidgetItem::PickedPointTreeWidgetItem(
 	setName(name);
 
 	active = _active;
-	//would set the checkbox but qt doesnt allow a way to do this in the constructor
+	//would set the checkbox but qt doesn't allow a way to do this in the constructor
 
 	//set point and normal
 	setPointAndNormal(intputPoint, faceNormal);

src/meshlabplugins/edit_pickpoints/pickpointsDialog.h

@@ -68,7 +68,7 @@ class PickedPointTreeWidgetItem : public QTreeWidgetItem
 	//get the normal
 	Point3m getNormal();
 
-	//clear the ponint datas
+	//clear the point data
 	void clearPoint();
 
 	//return if the point is set

src/meshlabplugins/filter_isoparametrization/filter_isoparametrization.cpp

@@ -128,7 +128,7 @@ RichParameterList FilterIsoParametrization::initParameterList(const QAction *a,
 								 "3: Regularity : stop at minimum number of irregular vertices<br>"
 								 "4: L2 : stop at minimum OneWay L2 Stretch Eff")));
 
-		par.addParam(RichInt("convergenceSpeed",1, "Convergence Precision", "This parameter controls the convergence speed/precision of the optimization of the texture coordinates. Larger the number slower the processing and ,eventually, slightly better results"));
+		par.addParam(RichInt("convergenceSpeed",1, "Convergence Precision", "This parameter controls the convergence speed/precision of the optimization of the texture coordinates. Larger the number slower the processing and, eventually, slightly better results"));
 		par.addParam(RichBool("DoubleStep",true,"Double Step","Use this bool to divide the parameterization in 2 steps. Double step makes the overall process faster and robust."
 															  "<br> Consider to disable this bool in case the object has topologycal noise or small handles."));
 //		par.addParam(RichOpenFile("AbsLoadName", "", {"*.txt"}, "Load AM", "The filename of the abstract mesh that has to be loaded. If empty, the abstract mesh will be computed according to the above parameters (suggested extension '.abs')."));

src/meshlabplugins/filter_sample_dyn/filter_sample_dyn.cpp

@@ -87,7 +87,7 @@ FilterPlugin::FilterClass ExtraSampleDynPlugin::getClass(const QAction *) const
 // 
 // In this sample a couple of parameter are declared as dynamic. That means that the meshlab framework will automatically 
 // manage the store and restore of the mesh state during the dynamic movement of the filter. 
-// The pluging writer is no more burdened with the task of saving the state but has only to declare what the filter changes 
+// The plugin writer is no more burdened with the task of saving the state but has only to declare what the filter changes 
 // (in this case just the vertex color). When a filter is dynamic (e.g. it has a dynamic float parameter) the meshlab 
 // framework will automatically store that part of the state at the opening of the dialog. When the user drag the slider,
 // the framework will restore the state and then simply call the apply callback of the filter.