Heightmap probing ... done?

heightmap.cpp

@@ -0,0 +1,29 @@
+#include "heightmap.h"
+
+grbl::heightmap grbl::heightmap::from_params(float from_x, float from_y, float to_x, float to_y, float resolution) {
+    heightmap result{};
+
+    result.from_x = from_x;
+    result.from_y = from_y;
+    result.to_x = to_x;
+    result.to_y = to_y;
+    result.resolution = resolution;
+
+    result.x_segments = static_cast<size_t>(ceilf((to_x - from_x) / resolution));
+    result.y_segments = static_cast<size_t>(ceilf((to_y - from_y) / resolution));
+
+    float y_pos = from_y;
+    for (int y = 0; y < (result.y_segments + 1); y++) {
+        float x_pos = from_x;
+        for (int x = 0; x < (result.x_segments + 1); x++) {
+            // add a bit of random wobble to make it visible [-10, +10]
+//            float z = ((rand() / (float) RAND_MAX) - 0.5f) * 2.0f * 1.0f;
+            float z = 0.0f;
+            result.vertices.emplace_back(x_pos, y_pos, z);
+            x_pos += resolution;
+        }
+        y_pos += resolution;
+    }
+
+    return result;
+}