diff --git a/src/openrct2-ui/interface/Graph.cpp b/src/openrct2-ui/interface/Graph.cpp
index 3435b2f9db..ec7f570e80 100644
--- a/src/openrct2-ui/interface/Graph.cpp
+++ b/src/openrct2-ui/interface/Graph.cpp
@@ -248,13 +248,12 @@ static void graph_draw_hovered_value(
     {
         return;
     }
-
-    gfx_draw_dashed_line(dpi, info.coords.x, chartFrame.GetTop(), info.coords.x, info.coords.y, DEFAULT_DASHED_LENGTH, 0);
-    gfx_draw_dashed_line(dpi, chartFrame.GetLeft() - 10, info.coords.y, info.coords.x, info.coords.y, DEFAULT_DASHED_LENGTH, 0);
+    gfx_draw_dashed_line(dpi, { { info.coords.x, chartFrame.GetTop() }, info.coords }, DEFAULT_DASHED_LENGTH, 0);
+    gfx_draw_dashed_line(dpi, { { chartFrame.GetLeft() - 10, info.coords.y }, info.coords }, DEFAULT_DASHED_LENGTH, 0);
 
     if (cursorPosition.y > info.coords.y)
     {
-        gfx_draw_dashed_line(dpi, info.coords.x, info.coords.y, info.coords.x, cursorPosition.y, DEFAULT_DASHED_LENGTH, 0);
+        gfx_draw_dashed_line(dpi, { info.coords, { info.coords.x, cursorPosition.y } }, DEFAULT_DASHED_LENGTH, 0);
     }
 
     gfx_draw_string_centred(
diff --git a/src/openrct2/drawing/Drawing.h b/src/openrct2/drawing/Drawing.h
index 7ec08cf062..e33c1f6add 100644
--- a/src/openrct2/drawing/Drawing.h
+++ b/src/openrct2/drawing/Drawing.h
@@ -19,6 +19,7 @@
 struct ScreenCoordsXY;
 
 struct ScreenCoordsXY;
+struct ScreenLine;
 namespace OpenRCT2
 {
     interface IPlatformEnvironment;
@@ -601,7 +602,7 @@ void gfx_draw_pickedup_peep(rct_drawpixelinfo* dpi);
 void gfx_draw_line(rct_drawpixelinfo* dpi, int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t colour);
 void gfx_draw_line_software(rct_drawpixelinfo* dpi, int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t colour);
 void gfx_draw_dashed_line(
-    rct_drawpixelinfo* dpi, int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t dashedLineSegmentLength, int32_t colour);
+    rct_drawpixelinfo* dpi, const ScreenLine& screenLine, const int32_t dashedLineSegmentLength, const int32_t color);
 
 // rect
 void gfx_fill_rect(rct_drawpixelinfo* dpi, int32_t left, int32_t top, int32_t right, int32_t bottom, int32_t colour);
diff --git a/src/openrct2/drawing/NewDrawing.cpp b/src/openrct2/drawing/NewDrawing.cpp
index 482bda0ba8..efe8d2ee83 100644
--- a/src/openrct2/drawing/NewDrawing.cpp
+++ b/src/openrct2/drawing/NewDrawing.cpp
@@ -212,8 +212,7 @@ void gfx_draw_line(rct_drawpixelinfo* dpi, int32_t x1, int32_t y1, int32_t x2, i
 }
 
 void gfx_draw_dashed_line(
-    rct_drawpixelinfo* dpi, const int32_t x1, const int32_t y1, const int32_t x2, const int32_t y2,
-    const int32_t dashedLineSegmentLength, const int32_t colour)
+    rct_drawpixelinfo* dpi, const ScreenLine& screenLine, const int32_t dashedLineSegmentLength, const int32_t color)
 {
     assert(dashedLineSegmentLength > 0);
 
@@ -222,24 +221,25 @@ void gfx_draw_dashed_line(
     {
         constexpr int32_t precisionFactor = 1000;
 
-        const int32_t dashedLineLength = std::hypot(x2 - x1, y2 - y1);
+        const int32_t dashedLineLength = std::hypot(
+            screenLine.GetRight() - screenLine.GetLeft(), screenLine.GetBottom() - screenLine.GetTop());
         const int32_t lineSegmentCount = dashedLineLength / dashedLineSegmentLength / 2;
         if (lineSegmentCount == 0)
         {
             return;
         }
 
-        const int32_t lineXDist = std::abs(x2 - x1);
-        const int32_t lineYDist = std::abs(y2 - y1);
+        const int32_t lineXDist = std::abs(screenLine.GetRight() - screenLine.GetLeft());
+        const int32_t lineYDist = std::abs(screenLine.GetBottom() - screenLine.GetTop());
         const int32_t dxPrecise = precisionFactor * lineXDist / lineSegmentCount / 2;
         const int32_t dyPrecise = precisionFactor * lineYDist / lineSegmentCount / 2;
         IDrawingContext* dc = drawingEngine->GetDrawingContext(dpi);
 
         for (int32_t i = 0, x, y; i < lineSegmentCount; ++i)
         {
-            x = x1 + dxPrecise * i * 2 / precisionFactor;
-            y = y1 + dyPrecise * i * 2 / precisionFactor;
-            dc->DrawLine(colour, x, y, x + dxPrecise / precisionFactor, y + dyPrecise / precisionFactor);
+            x = screenLine.GetLeft() + dxPrecise * i * 2 / precisionFactor;
+            y = screenLine.GetTop() + dyPrecise * i * 2 / precisionFactor;
+            dc->DrawLine(color, x, y, x + dxPrecise / precisionFactor, y + dyPrecise / precisionFactor);
         }
     }
 }