From 7a0b05778b4c785a9e3ef592cb389736c528a1d1 Mon Sep 17 00:00:00 2001
From: artem-ogre <artem.ogre@gmail.com>
Date: Tue, 26 Oct 2021 20:32:57 +0200
Subject: [PATCH] Fix InitializeWithGrid and VerifyTopology after CDT
 re-factoring

Add instantiations to CDT.cpp to avoid such problems in the future
---
 CDT/extras/InitializeWithGrid.h | 52 ++++++++++++++++++++-------------
 CDT/extras/VerifyTopology.h     |  3 +-
 CDT/src/CDT.cpp                 | 22 ++++++++++++++
 3 files changed, 56 insertions(+), 21 deletions(-)

diff --git a/CDT/extras/InitializeWithGrid.h b/CDT/extras/InitializeWithGrid.h
index 559d358a..ec536cec 100644
--- a/CDT/extras/InitializeWithGrid.h
+++ b/CDT/extras/InitializeWithGrid.h
@@ -26,7 +26,8 @@ namespace detail
 /**
  * Generate grid vertices given of X- and Y-ticks
  *
- * @tparam OutputIt output iterator
+ * @tparam OutputVertIt output vertices iterator
+ * @tparam OutputTriIt output triangles iterator
  * @tparam TXCoordIter iterator dereferencing to X coordinate
  * @tparam TYCoordIter iterator dereferencing to Y coordinate
  * @param outFirst the beginning of the destination range
@@ -35,9 +36,14 @@ namespace detail
  * @param yfirst beginning of Y-ticks range
  * @param ylast end of Y-ticks range
  */
-template <typename OutputIt, typename TXCoordIter, typename TYCoordIter>
+template <
+    typename OutputVertIt,
+    typename OutputTriIt,
+    typename TXCoordIter,
+    typename TYCoordIter>
 void generateGridVertices(
-    OutputIt outFirst,
+    OutputVertIt outVertsFirst,
+    OutputTriIt outTrisFirst,
     const TXCoordIter xfirst,
     const TXCoordIter xlast,
     const TYCoordIter yfirst,
@@ -53,33 +59,33 @@ void generateGridVertices(
         TXCoordIter xiter = xfirst;
         for(std::size_t ix = 0; xiter != xlast; ++xiter, ++ix)
         {
-            Vertex<T> v;
-            v.pos = V2d<T>::make(*xiter, *yiter);
-
+            *outVertsFirst++ = V2d<T>::make(*xiter, *yiter);
             const std::size_t i = iy * xres + ix;
+            TriIndVec vTris;
+            vTris.reserve(6);
             // left-up
             if(ix > 0 && iy < yres)
             {
-                v.triangles.push_back(2 * (i - 1));
-                v.triangles.push_back(2 * (i - 1) + 1);
+                vTris.push_back(2 * (i - 1));
+                vTris.push_back(2 * (i - 1) + 1);
             }
             // right-up
             if(ix < xres && iy < yres)
             {
-                v.triangles.push_back(2 * i);
+                vTris.push_back(2 * i);
             }
             // left-down
             if(ix > 0 && iy > 0)
             {
-                v.triangles.push_back(2 * (i - xres - 1) + 1);
+                vTris.push_back(2 * (i - xres - 1) + 1);
             }
             // right-down
             if(ix < xres && iy > 0)
             {
-                v.triangles.push_back(2 * (i - xres));
-                v.triangles.push_back(2 * (i - xres) + 1);
+                vTris.push_back(2 * (i - xres));
+                vTris.push_back(2 * (i - xres) + 1);
             }
-            *outFirst++ = v;
+            *outTrisFirst++ = vTris;
         }
     }
 }
@@ -95,20 +101,20 @@ void generateGridVertices(
 template <typename OutputIt>
 void generateGridTriangles(
     OutputIt outFirst,
-    const std::size_t xres,
-    const std::size_t yres)
+    const IndexSizeType xres,
+    const IndexSizeType yres)
 {
-    for(std::size_t iy = 0; iy < yres; ++iy)
+    for(IndexSizeType iy = 0; iy < yres; ++iy)
     {
-        for(std::size_t ix = 0; ix < xres; ++ix)
+        for(IndexSizeType ix = 0; ix < xres; ++ix)
         {
             // 2___3           v3
             // |\  |           /\
             // | \ |        n3/  \n2
             // |__\|         /____\
             // 0   1       v1  n1  v2
-            const std::size_t i = iy * xres + ix;
-            const std::size_t iv = iy * (xres + 1) + ix;
+            const IndexSizeType i = iy * xres + ix;
+            const IndexSizeType iv = iy * (xres + 1) + ix;
             const VertInd vv[4] = {iv, iv + 1, iv + xres + 1, iv + xres + 2};
             Triangle t;
 
@@ -196,8 +202,14 @@ void initializeWithIrregularGrid(
     const std::size_t yres = std::distance(yfirst, ylast) - 1;
     out.triangles.reserve(xres * yres * 2);
     out.vertices.reserve((xres + 1) * (yres + 1));
+    out.vertTris.reserve((xres + 1) * (yres + 1));
     detail::generateGridVertices(
-        std::back_inserter(out.vertices), xfirst, xlast, yfirst, ylast);
+        std::back_inserter(out.vertices),
+        std::back_inserter(out.vertTris),
+        xfirst,
+        xlast,
+        yfirst,
+        ylast);
     detail::generateGridTriangles(
         std::back_inserter(out.triangles), xres, yres);
     out.initializedWithCustomSuperGeometry();
diff --git a/CDT/extras/VerifyTopology.h b/CDT/extras/VerifyTopology.h
index 08f1f6fe..f4387033 100644
--- a/CDT/extras/VerifyTopology.h
+++ b/CDT/extras/VerifyTopology.h
@@ -26,8 +26,9 @@ namespace CDT
  *  - each of triangle's vertices has triangle as adjacent
  *
  * @tparam T type of vertex coordinates (e.g., float, double)
+ * @tparam TNearPointLocator class providing locating near point for efficiently
  */
-template <typename T, typename TNearPointLocator>
+template <typename T, typename TNearPointLocator = LocatorKDTree<T> >
 inline bool verifyTopology(const CDT::Triangulation<T, TNearPointLocator>& cdt)
 {
     // Check if vertices' adjacent triangles contain vertex
diff --git a/CDT/src/CDT.cpp b/CDT/src/CDT.cpp
index 53480577..f0c8f40a 100644
--- a/CDT/src/CDT.cpp
+++ b/CDT/src/CDT.cpp
@@ -15,6 +15,8 @@
 
 #include "CDT.hpp"
 #include "CDTUtils.hpp"
+#include "InitializeWithGrid.h"
+#include "VerifyTopology.h"
 
 namespace CDT
 {
@@ -39,6 +41,26 @@ template DuplicatesInfo RemoveDuplicatesAndRemapEdges<double>(
     std::vector<V2d<double> >&,
     std::vector<Edge>&);
 
+template bool verifyTopology<float>(const CDT::Triangulation<float>&);
+template bool verifyTopology<double>(const CDT::Triangulation<double>&);
+
+template void initializeWithRegularGrid<float>(
+    float,
+    float,
+    float,
+    float,
+    std::size_t,
+    std::size_t,
+    Triangulation<float>&);
+template void initializeWithRegularGrid<double>(
+    double,
+    double,
+    double,
+    double,
+    std::size_t,
+    std::size_t,
+    Triangulation<double>&);
+
 } // namespace CDT
 
 #endif