kaka.farm

commit 17a31011ee0ce83a9e4ffb0f6fd762dd84dae787
parent d9771212bc4e965cb39b31ed13ff85a377e7f95e
Author: Yuval Langer <yuvallangerontheroad@gmail.com>
Date:   Tue,  2 Jun 2020 14:37:00 +0300

Update package dependencies, add border arguments to SVG generating function.

Diffstat:
A
.gitignore
 | 
2
++
M
dabbling/dragon_curve.py
 | 
36
++++++++++++++++++++++++------------
M
poetry.lock
 | 
8
++++----

3 files changed, 30 insertions(+), 16 deletions(-)
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,2 @@
+dabbling.egg-info
+dabbling/__pycache__
diff --git a/dabbling/dragon_curve.py b/dabbling/dragon_curve.py
@@ -36,24 +36,36 @@ def write_matplotlib_png(dragon_curve_path: PathType):
     plt.savefig('dragon-curve.png')
 
 
+def transform(values, low, high):
+    min_value = min(values)
+    max_value = max(values)
+    old_difference = max_value - min_value
+    new_difference = high - low
+    # values = [n - min_value for n in values] # [0, max-min = old_difference]
+    # values = [n / old_difference for n in values] # [0, 1]
+    # values = [n * new_difference for n in values] # [0, new_difference = high - low]
+    # values = [n + low for n in values] # [low, high]
+    return [(n - min_value) * new_difference / old_difference + low
+            for n in values]
+
+
 def path_to_svg_file_content(
         path: PathType,
-        image_width = 1000,
-        image_height = 1000,
+        image_width=500,
+        image_height=500,
+        left_border=50,
+        right_border=50,
+        bottom_border=50,
+        top_border=50,
     ) -> str:
-    min_x = min(p[0] for p in path)
-    min_y = min(p[1] for p in path)
-
-    path = [(p[0] - min_x, p[1] - min_y) for p in path]
-
-    max_x = max(p[0] for p in path)
-    max_y = max(p[1] for p in path)
+    path = list(zip(
+        transform([p[0] for p in path], left_border, image_width - right_border),
+        transform([p[1] for p in path], top_border, image_width - bottom_border)))
 
-    path = [(image_width * p[0] / max_x, image_height * p[1] / max_y) for p in path]
+    svg_path = ''.join(f'L{p[0]} {p[1]}' for p in path)
 
-    svg_path = ''.join(f'L{p[0]} {p[1]}' for p in path).strip()
     return f'''
-<svg width="{image_width}" height="{image_height}" xmlns="http://www.w3.org/2000/svg">
+<svg width="{image_width}" height="{image_height}" fill="white" xmlns="http://www.w3.org/2000/svg">
 
   <path fill="none" stroke="black" stroke-linejoin="round" stroke-width="0.7" d="M{path[0][0]} {path[0][1]}{svg_path}"/>
 
diff --git a/poetry.lock b/poetry.lock
@@ -837,11 +837,11 @@ socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7,<2.0)"]
 
 [[package]]
 category = "main"
-description = "Measures number of Terminal column cells of wide-character codes"
+description = "Measures the displayed width of unicode strings in a terminal"
 name = "wcwidth"
 optional = false
 python-versions = "*"
-version = "0.1.9"
+version = "0.2.2"
 
 [[package]]
 category = "main"
@@ -1290,8 +1290,8 @@ urllib3 = [
     {file = "urllib3-1.25.9.tar.gz", hash = "sha256:3018294ebefce6572a474f0604c2021e33b3fd8006ecd11d62107a5d2a963527"},
 ]
 wcwidth = [
-    {file = "wcwidth-0.1.9-py2.py3-none-any.whl", hash = "sha256:cafe2186b3c009a04067022ce1dcd79cb38d8d65ee4f4791b8888d6599d1bbe1"},
-    {file = "wcwidth-0.1.9.tar.gz", hash = "sha256:ee73862862a156bf77ff92b09034fc4825dd3af9cf81bc5b360668d425f3c5f1"},
+    {file = "wcwidth-0.2.2-py2.py3-none-any.whl", hash = "sha256:b651b6b081476420e4e9ae61239ac4c1b49d0c5ace42b2e81dc2ff49ed50c566"},
+    {file = "wcwidth-0.2.2.tar.gz", hash = "sha256:3de2e41158cb650b91f9654cbf9a3e053cee0719c9df4ddc11e4b568669e9829"},
 ]
 webencodings = [
     {file = "webencodings-0.5.1-py2.py3-none-any.whl", hash = "sha256:a0af1213f3c2226497a97e2b3aa01a7e4bee4f403f95be16fc9acd2947514a78"},