Horizontal segments

crates/projection/src/horizon.rs

@@ -33,6 +33,10 @@ impl Horizon {
         horizon_y + margin < point.y()
     }
 
+    pub fn horizon_y_maximum(&self) -> f32 {
+        self.y_at_x(0.0).max(self.y_at_x(640.0))
+    }
+
     pub fn horizon_y_minimum(&self) -> f32 {
         self.y_at_x(0.0).min(self.y_at_x(640.0))
     }

crates/types/src/image_segments.rs

@@ -14,6 +14,7 @@ pub struct ImageSegments {
     Default, Clone, Debug, Deserialize, Serialize, PathSerialize, PathDeserialize, PathIntrospect,
 )]
 pub struct ScanGrid {
+    pub horizontal_scan_lines: Vec<ScanLine>,
     pub vertical_scan_lines: Vec<ScanLine>,
 }
 
@@ -50,3 +51,9 @@ pub enum EdgeType {
     ImageBorder,
     LimbBorder,
 }
+
+#[derive(Clone, Copy, Debug, Deserialize, Eq, PartialEq, Serialize)]
+pub enum Direction {
+    Horizontal,
+    Vertical,
+}

crates/types/src/ycbcr422_image.rs

@@ -1,7 +1,6 @@
 use std::{
     fmt::Debug,
     mem::{size_of, ManuallyDrop},
-    ops::Index,
     path::Path,
     sync::Arc,
 };
@@ -218,6 +217,10 @@ impl YCbCr422Image {
         }
     }
 
+    pub fn at_point(&self, point: Point2<Pixel, u32>) -> YCbCr444 {
+        self.at(point.x(), point.y())
+    }
+
     pub fn try_at(&self, x: u32, y: u32) -> Option<YCbCr444> {
         if x >= self.width() || y >= self.height() {
             return None;
@@ -240,11 +243,3 @@ impl YCbCr422Image {
         })
     }
 }
-
-impl Index<Point2<Pixel, usize>> for YCbCr422Image {
-    type Output = YCbCr422;
-
-    fn index(&self, position: Point2<Pixel, usize>) -> &Self::Output {
-        &self.buffer[position.y() * self.width_422 as usize + position.x()]
-    }
-}