volume conversion tools and really basic data converter app

modules/volume/volumeutils.cpp

@@ -0,0 +1,31 @@
+#include "volumeutils.h"
+
+namespace openspace {
+namespace volumeutils {
+    
+size_t coordsToIndex(const glm::vec3& coords, const glm::ivec3& dims) {
+    size_t w = dims.x;
+    size_t h = dims.y;
+    size_t d = dims.z;
+    
+    size_t x = coords.x;
+    size_t y = coords.y;
+    size_t z = coords.z;
+    
+    return coords.z * (h * w) + coords.y * w + coords.x;
+}
+
+glm::vec3 indexToCoords(size_t index, const glm::ivec3& dims) {
+    size_t w = dims.x;
+    size_t h = dims.y;
+    size_t d = dims.z;
+    
+    size_t x = index % w;
+    size_t y = (index / w) % h;
+    size_t z = index / w / h;
+    
+    return glm::ivec3(x, y, z);
+}
+    
+}
+}