From 5cc688bc4d920dd46a965ea6438104a81fa4fc42 Mon Sep 17 00:00:00 2001
From: Piero Toffanin <pt@masseranolabs.com>
Date: Wed, 25 May 2022 13:07:12 -0400
Subject: [PATCH] Add External-Obj2Tiles.cmake

---
 SuperBuild/cmake/External-Obj2Tiles.cmake | 31 +++++++++++++++++++++++
 opendm/ogctiles.py                        |  1 -
 2 files changed, 31 insertions(+), 1 deletion(-)
 create mode 100644 SuperBuild/cmake/External-Obj2Tiles.cmake

diff --git a/SuperBuild/cmake/External-Obj2Tiles.cmake b/SuperBuild/cmake/External-Obj2Tiles.cmake
new file mode 100644
index 00000000..739c02fc
--- /dev/null
+++ b/SuperBuild/cmake/External-Obj2Tiles.cmake
@@ -0,0 +1,31 @@
+set(_proj_name obj2tiles)
+set(_SB_BINARY_DIR "${SB_BINARY_DIR}/${_proj_name}")
+
+set(OBJ2TILES_VERSION v1.0.5)
+
+set(OBJ2TILES_ARCH "Linux64")
+if (WIN32)
+set(OBJ2TILES_ARCH "Win64")
+elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "aarch64")
+set(OBJ2TILES_ARCH "LinuxArm")
+endif()
+
+
+ExternalProject_Add(${_proj_name}
+  PREFIX            ${_SB_BINARY_DIR}
+  TMP_DIR           ${_SB_BINARY_DIR}/tmp
+  STAMP_DIR         ${_SB_BINARY_DIR}/stamp
+  #--Download step--------------
+  DOWNLOAD_DIR      ${SB_DOWNLOAD_DIR}
+  URL           https://github.com/OpenDroneMap/Obj2Tiles/releases/download/${OBJ2TILES_VERSION}/Obj2Tiles-${OBJ2TILES_ARCH}.zip
+  SOURCE_DIR        ${SB_SOURCE_DIR}/${_proj_name}
+  UPDATE_COMMAND    ""
+  CONFIGURE_COMMAND ""
+  BUILD_IN_SOURCE 1
+  BUILD_COMMAND     ""
+  INSTALL_COMMAND  ${CMAKE_COMMAND} -E copy ${SB_SOURCE_DIR}/${_proj_name}/Obj2Tiles ${SB_INSTALL_DIR}/bin
+  #--Output logging-------------
+  LOG_DOWNLOAD      OFF
+  LOG_CONFIGURE     OFF
+  LOG_BUILD         OFF
+)
\ No newline at end of file
diff --git a/opendm/ogctiles.py b/opendm/ogctiles.py
index 771ec1ee..9c73ca9e 100644
--- a/opendm/ogctiles.py
+++ b/opendm/ogctiles.py
@@ -7,7 +7,6 @@ from opendm.utils import double_quote
 from opendm import io
 from opendm import log
 from opendm import system
-from opendm import concurrency
 import fiona
 from shapely.geometry import shape