Minor bug fixes

Author: Onur R. Bingol

geomdl/_utilities.py

@@ -102,10 +102,9 @@ def check_params(params):
     :return: True if defined in the domain [0, 1]. False, otherwise.
     :rtype: bool
     """
-    tol = 10e-8
     # Check parameters
     for prm in params:
         if prm is not None:
-            if not (0.0 - tol) <= prm <= (1.0 + tol):
+            if not 0.0 <= prm <= 1.0:
                 return False
     return True

geomdl/abstract.py

@@ -1769,7 +1769,10 @@ def tessellate(self, **kwargs):
 
         # Re-evaluate vertex coordinates
         for idx in range(len(self._tsl_component.vertices)):
-            self._tsl_component.vertices[idx].data = self.evaluate_single(self._tsl_component.vertices[idx].uv)
+            uv = self._tsl_component.vertices[idx].uv
+            if self._kv_normalize and not utl.check_params(uv):
+                continue
+            self._tsl_component.vertices[idx].data = self.evaluate_single(uv)
 
     def reset(self, **kwargs):
         """ Resets control points and/or evaluated points.

geomdl/vis.py

@@ -78,7 +78,7 @@ def vconf(self):
 
     @property
     def mconf(self):
-        """ Visualization module internal configuration directives
+        """ Configuration directives for the visualization module (internal).
 
         This property controls the internal configuration of the visualization module. It is for advanced use and
         testing only.

geomdl/visualization/VisMPL.py

@@ -448,13 +448,14 @@ def render(self, **kwargs):
                     trisurf_params['color'] = plot['color']
 
                 # Create MPL Triangulation object
-                triangulation = mpltri.Triangulation(pts[:, 0], pts[:, 1], triangles=tri_idxs)
-                # Use custom Triangulation object and the choice of color/colormap to plot the surface
-                ax.plot_trisurf(triangulation, pts[:, 2], alpha=self.vconf.alpha, **trisurf_params)
-                # Add to legend
-                plot_proxy = mpl.lines.Line2D([0], [0], linestyle='none', color=plot['color'], marker='^')
-                legend_proxy.append(plot_proxy)
-                legend_names.append(plot['name'])
+                if pts.size != 0:
+                    triangulation = mpltri.Triangulation(pts[:, 0], pts[:, 1], triangles=tri_idxs)
+                    # Use custom Triangulation object and the choice of color/colormap to plot the surface
+                    ax.plot_trisurf(triangulation, pts[:, 2], alpha=self.vconf.alpha, **trisurf_params)
+                    # Add to legend
+                    plot_proxy = mpl.lines.Line2D([0], [0], linestyle='none', color=plot['color'], marker='^')
+                    legend_proxy.append(plot_proxy)
+                    legend_names.append(plot['name'])
 
             # Plot bounding box
             if plot['type'] == 'bbox' and self.vconf.display_bbox: