Little stuff: show polygon assembly errors only for draw-in-plane

groups, rename "drawing" groups to "sketch" groups, and keep
assembling even after finding an open curve.

[git-p4: depot-paths = "//depot/solvespace/": change = 1835]

file.cpp

@@ -13,7 +13,7 @@ hGroup SolveSpace::CreateDefaultDrawingGroup(void) {
     g.predef.q = Quaternion::From(1, 0, 0, 0);
     hRequest hr = Request::HREQUEST_REFERENCE_XY;
     g.predef.origin = hr.entity(1);
-    g.name.strcpy("draw-in-plane");
+    g.name.strcpy("sketch-in-plane");
     group.AddAndAssignId(&g);
     SS.GetGroup(g.h)->activeWorkplane = g.h.entity(0);
     return g.h;

graphicswin.cpp

@@ -42,8 +42,8 @@ const GraphicsWindow::MenuEntry GraphicsWindow::menu[] = {
 { 1, "Dimensions in &Millimeters",          MNU_UNITS_MM,       0,      mView },
 
 { 0, "&New Group",                          0,                  0,      NULL  },
-{ 1, "&Drawing in 3d\tShift+D",             MNU_GROUP_3D,       'D'|S,  mGrp  },
-{ 1, "Drawing in Workplane\tShift+W",       MNU_GROUP_WRKPL,    'W'|S,  mGrp  },
+{ 1, "Sketch In &3d\tShift+3",              MNU_GROUP_3D,       '3'|S,  mGrp  },
+{ 1, "Sketch In New &Workplane\tShift+W",   MNU_GROUP_WRKPL,    'W'|S,  mGrp  },
 { 1, NULL,                                  0,                          NULL  },
 { 1, "Step &Translating\tShift+T",          MNU_GROUP_TRANS,    'T'|S,  mGrp  },
 { 1, "Step &Rotating\tShift+R",             MNU_GROUP_ROT,      'R'|S,  mGrp  },
@@ -96,7 +96,7 @@ const GraphicsWindow::MenuEntry GraphicsWindow::menu[] = {
 { 0, "&Help",                               0,                          NULL  },
 { 1, "&Load License...",                    0,                          NULL  },
 { 1, NULL,                                  0,                          NULL  },
-{ 1, "Open &Website",                       0,                          NULL  },
+{ 1, "&Website / Manual",                   0,                          NULL  },
 { 1, "&About",                              0,                          NULL  },
 { -1  },
 };

group.cpp

@@ -32,12 +32,12 @@ void Group::MenuGroup(int id) {
     switch(id) {
         case GraphicsWindow::MNU_GROUP_3D:
             g.type = DRAWING_3D;
-            g.name.strcpy("draw-in-3d");
+            g.name.strcpy("sketch-in-3d");
             break;
 
         case GraphicsWindow::MNU_GROUP_WRKPL:
             g.type = DRAWING_WORKPLANE;
-            g.name.strcpy("draw-in-plane");
+            g.name.strcpy("sketch-in-plane");
             if(gs.points == 1 && gs.n == 1) {
                 g.subtype = WORKPLANE_BY_POINT_ORTHO;
 

groupmesh.cpp

@@ -612,6 +612,9 @@ void Group::Draw(void) {
     // And finally show the polygons too
     if(!SS.GW.showShaded) return;
     if(polyError.how == POLY_NOT_CLOSED) {
+        // Report this error only in sketch-in-workplane groups; otherwise
+        // it's just a nuisance.
+        if(type == DRAWING_WORKPLANE) {
             glDisable(GL_DEPTH_TEST);
             glxColor4d(1, 0, 0, 0.2);
             glLineWidth(10);
@@ -627,7 +630,10 @@ void Group::Draw(void) {
                 glxWriteText("not closed contour!");
             glPopMatrix();
             glEnable(GL_DEPTH_TEST);
+        }
     } else if(polyError.how == POLY_NOT_COPLANAR) {
+        // And this one too
+        if(type == DRAWING_WORKPLANE) {
             glDisable(GL_DEPTH_TEST);
             glxColor3d(1, 0, 0);
             glPushMatrix();
@@ -636,6 +642,7 @@ void Group::Draw(void) {
                 glxWriteText("points not all coplanar!");
             glPopMatrix();
             glEnable(GL_DEPTH_TEST);
+        }
     } else {
         glxColor4d(0, 0.1, 0.1, 0.5);
         glxDepthRangeOffset(1);

polygon.cpp

@@ -105,6 +105,7 @@ bool SEdgeList::AssembleContour(Vector first, Vector last,
 bool SEdgeList::AssemblePolygon(SPolygon *dest, SEdge *errorAt) {
     dest->Clear();
 
+    bool allClosed = true;
     for(;;) {
         Vector first, last;
         int i;
@@ -117,14 +118,15 @@ bool SEdgeList::AssemblePolygon(SPolygon *dest, SEdge *errorAt) {
             }
         }
         if(i >= l.n) {
-            return true;
+            return allClosed;
         }
 
         // Create a new empty contour in our polygon, and finish assembling
         // into that contour.
         dest->AddEmptyContour();
         if(!AssembleContour(first, last, &(dest->l.elem[dest->l.n-1]), errorAt))
-            return false;
+            allClosed = false;
+        // But continue assembling, even if some of the contours are open
     }
 }