From ebf2a39704f96a04b857dd14e534a7850f0bb224 Mon Sep 17 00:00:00 2001
From: Elod Csirmaz <csirmazelodpal@gmail.com>
Date: Sun, 8 Dec 2024 00:43:46 +0000
Subject: [PATCH] Add scaling to height maps

---
 polyhedron.html | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/polyhedron.html b/polyhedron.html
index d9b19a5..87eb1a3 100644
--- a/polyhedron.html
+++ b/polyhedron.html
@@ -142,13 +142,15 @@ Nonplanar faces will be triangulated by OpenSCAD.</p>
         return cls(points=point_list, faces=faces, convexity=convexity)
 
     @classmethod
-    def from_heightmap(cls, heights: List[List[float]], base: float = 0., convexity: int = 10):
+    def from_heightmap(cls, heights: List[List[float]], base: float = 0., step_x: float = 1., step_y: float = 1., convexity: int = 10):
         &#34;&#34;&#34;Construct a polyhedron from a 2D matrix of heights. If the height at [0,0] is Z, it maps
         to the point (0, 0, Z).
 
         Arguments:
             - heights: The 2D matrix of heights
             - base: The height at which the base will be - in the scale of heights (optional; default 0)
+            - step_x: The X coordinate becomes `step_x * index_x` (default 1)
+            - step_y: The Y coordinate becomes `step_y * index_y` (default 1)
             - convexity: see OpenSCAD
         &#34;&#34;&#34;
         rows = len(heights)
@@ -158,8 +160,8 @@ Nonplanar faces will be triangulated by OpenSCAD.</p>
         bottom_point_map = {}
         for row_ix, row in enumerate(heights):
             for col_ix, height in enumerate(row):
-                point = Point([row_ix, col_ix, height])
-                bottom_point = Point([row_ix, col_ix, base])
+                point = Point([row_ix*step_x, col_ix*step_y, height])
+                bottom_point = Point([row_ix*step_x, col_ix*step_y, base])
                 
                 point_map[(row_ix, col_ix)] = len(point_list)
                 point_list.append(point)
@@ -291,7 +293,7 @@ Nonplanar faces will be triangulated by OpenSCAD.</p>
 <h3>Static methods</h3>
 <dl>
 <dt id="openscad_py.polyhedron.Polyhedron.from_heightmap"><code class="name flex">
-<span>def <span class="ident">from_heightmap</span></span>(<span>heights: List[List[float]], base: float = 0.0, convexity: int = 10)</span>
+<span>def <span class="ident">from_heightmap</span></span>(<span>heights: List[List[float]],<br>base: float = 0.0,<br>step_x: float = 1.0,<br>step_y: float = 1.0,<br>convexity: int = 10)</span>
 </code></dt>
 <dd>
 <div class="desc"><p>Construct a polyhedron from a 2D matrix of heights. If the height at [0,0] is Z, it maps
@@ -300,6 +302,8 @@ to the point (0, 0, Z).</p>
 <ul>
 <li>heights: The 2D matrix of heights</li>
 <li>base: The height at which the base will be - in the scale of heights (optional; default 0)</li>
+<li>step_x: The X coordinate becomes <code>step_x * index_x</code> (default 1)</li>
+<li>step_y: The Y coordinate becomes <code>step_y * index_y</code> (default 1)</li>
 <li>convexity: see OpenSCAD</li>
 </ul></div>
 </dd>