From f93806eb90fa2d1fa41044e3cfd6b6fbf2b0b4c6 Mon Sep 17 00:00:00 2001
From: Lin Kayser <github@lsk.me>
Date: Wed, 31 Jul 2024 15:48:51 +0400
Subject: [PATCH] Added example how to visualize CLI file

Also added the visualization to VDB to CLI example
---
 Examples/Ex_ShowCLIFile.cs | 56 ++++++++++++++++++++++++++++++++++++++
 Examples/Ex_VDBtoCLI.cs    | 15 ++++++++--
 2 files changed, 69 insertions(+), 2 deletions(-)
 create mode 100644 Examples/Ex_ShowCLIFile.cs

diff --git a/Examples/Ex_ShowCLIFile.cs b/Examples/Ex_ShowCLIFile.cs
new file mode 100644
index 0000000..2c1f956
--- /dev/null
+++ b/Examples/Ex_ShowCLIFile.cs
@@ -0,0 +1,56 @@
+//
+// SPDX-License-Identifier: CC0-1.0
+//
+// This example code file is released to the public under Creative Commons CC0.
+// See https://creativecommons.org/publicdomain/zero/1.0/legalcode
+//
+// To the extent possible under law, LEAP 71 has waived all copyright and
+// related or neighboring rights to this PicoGK example code file.
+//
+// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+
+using PicoGK;
+
+namespace PicoGKExamples
+{
+    class ShowCLI
+    {
+        public ShowCLI(string strCLIFile)
+        {
+            m_strCLIFile = strCLIFile;
+        }
+
+        public void Task()
+        {
+            // Load all CLI slices
+            CliIo.Result oResult = CliIo.oSlicesFromCliFile(m_strCLIFile);
+
+            // Add all slices to the viewer
+            oResult.oSlices.AddToViewer(Library.oViewer());
+
+            // Write out all slice as SVGs
+            // Create a subdirectory, to not spam the CLI file folder
+
+            string strDir       = Path.GetDirectoryName(m_strCLIFile) ?? Library.strLogFolder;
+            string strName      = Path.GetFileNameWithoutExtension(m_strCLIFile);
+            string strSubDir    = Path.Combine(strDir, strName + "_SVGs");
+            Directory.CreateDirectory(strSubDir);
+
+            // Iterate throug all slices and save as SVGs
+            for (int n=0; n<oResult.oSlices.nCount(); n++)
+            {
+                PolySlice oSlice = oResult.oSlices.oSliceAt(n);
+                oSlice.SaveToSvgFile(Path.Combine(strSubDir, strName + $"_{n:00000}.svg"), true);
+            }
+        }
+
+        string m_strCLIFile;
+    }   
+}
\ No newline at end of file
diff --git a/Examples/Ex_VDBtoCLI.cs b/Examples/Ex_VDBtoCLI.cs
index 456b2aa..0c4abe6 100644
--- a/Examples/Ex_VDBtoCLI.cs
+++ b/Examples/Ex_VDBtoCLI.cs
@@ -60,6 +60,8 @@ public static void ConvertVdbToCli( string strVdbFile,
 
                 OpenVdbFile oFile = new OpenVdbFile(strVdbFile);
 
+                bool bFound = false;
+
                 for (int n=0; n<oFile.nFieldCount(); n++)
                 {
                     Voxels vox;
@@ -76,10 +78,19 @@ public static void ConvertVdbToCli( string strVdbFile,
 
                     // Save to CLI file
                     vox.SaveToCliFile(strCLIFile, fLayerHeight);
-                    return;
+                    bFound = true;
+                    break;
                 }
 
-                throw new Exception($"No voxels found in VDB file {strVdbFile}");
+                if (!bFound)
+                    throw new Exception($"No voxels found in VDB file {strVdbFile}");
+            }
+
+            // Lastly, let's visualize the CLI in the viewer, and output it to .SVG slices
+            // we can use the ShowCLIFile example for that
+            {
+                ShowCLI oShow = new(strCLIFile);
+                Library.Go(1, oShow.Task);
             }
         }
     }