diff --git a/docs/img/scale_1.png b/docs/img/scale_1.png
new file mode 100644
index 0000000..fddee84
Binary files /dev/null and b/docs/img/scale_1.png differ
diff --git a/docs/img/scale_2.png b/docs/img/scale_2.png
new file mode 100644
index 0000000..fffe299
Binary files /dev/null and b/docs/img/scale_2.png differ
diff --git a/docs/img/translate.png b/docs/img/translate.png
new file mode 100644
index 0000000..b3a74b8
Binary files /dev/null and b/docs/img/translate.png differ
diff --git a/docs/utilities.md b/docs/utilities.md
index 2a6dbcd..ffe69c5 100644
--- a/docs/utilities.md
+++ b/docs/utilities.md
@@ -56,7 +56,71 @@ Results in:
+### Distance between two points (x1, y1) and (x2, y2)
+
+
+
+To find the distance between two points (x1, y1) and (x2, y2), use the following command:
+
+```python
+dist(x1, y1, x2, y2)
+```
+
+**Parameters**
+
+- x1: (float) The x-coordinate of the first point
+- y1: (float) The y-coordinate of the first point
+- x2: (float) The x-coordinate of the second point
+- y2: (float) The y-coordinate of the second point
+
+**Example(s):**
+
+*Print the distance between (125, 125) and (375, 375)*
+
+```python hl_lines="4"
+%%ignite
+
+def setup():
+ print(dist(125, 125, 375, 375))
+```
+
+Results in:
+
+
+
+### Translate
+
+Change the origin of the canvas.
+
+Usage:
+
+```python
+translate(x, y)
+```
+**Parameters**
+
+- x: (float) The horizontal distance to translate the canvas.
+- y: (float) The vertical distance to translate the canvas.
+
+**Example(s):**
+
+*Translate the canvas 50 units right and 75 units down*
+
+```python hl_lines="8"
+%%ignite
+
+def setup():
+ size(400, 400)
+ fill_style("red")
+
+ # move canvas 50 units right, and 75 units down
+ translate(50, 75)
+ circle(0, 0, 100)
+```
+Results in:
+
+
### Rotation
@@ -64,7 +128,7 @@ Results in:
Transformations are always done to the **canvas**, not the individual shapes themselves. Rotation is done around the origin, point (0, 0) and affects all shapes drawn afterwards. You can use our built-in `pi` variable to express radians, or convert from degrees to radians by multiplying your number of degrees by `pi / 180`.
-Note that canvas transformations are not removed automatically. In other words, if you want to rotate just one shape in your `draw()` function, you should rotate the canvas by `r` radians, draw your shape, and then rotate by `-r` radians to undo the effect.
+Note that canvas transformations are not removed automatically. In other words, if you want to rotate just one shape in your `draw()` function, you should rotate the canvas by `r` radians, draw your shape, and then rotate by `-r` radians to undo the effect. Also note that you can rotate on a point other than the origin by first calling `translate` to change the origin to the new point.
To rotate the canvas clockwise around the origin, use:
@@ -94,34 +158,72 @@ Results in:
-### Distance between two points (x1, y1) and (x2, y2)
+### Scale
-
+Scales the canvas. Note that scaling applies to the canvas, not to individual shapes. You can scale on a point other than the origin by first calling `translate` to change the origin to the new point.
-To find the distance between two points (x1, y1) and (x2, y2), use the following command:
+There are two ways to use scale:
+
+| Method | Description | Syntax |
+| -------------------------------- | -----------------------------------------------------------------------------|-----------------|
+|[1 float](#scale-with-one-float) | Scale canvas width and height by some amount, i.e. 1.5 | scale(1.5) |
+|[2 floats](#scale-with-two-floats)| Scale canvas width by first number and height by second number, i.e. 2.5, 3.5| scale(2.5, 3.5) |
+
+#### Scale with one float
```python
-dist(x1, y1, x2, y2)
+scale(n)
+```
+**Parameters**
+
+- n: (float) The amount to scale the height and width of the canvas.
+
+**Example(s):**
+
+*Double height and width of canvas using scale*
+
+```python hl_lines="8"
+%%ignite
+
+def setup():
+ size(400, 400)
+ fill_style("red")
+
+ # apply scale of 2, this will scale canvas units by factor of 2 horizontally and vertically
+ scale(2)
+ circle(100, 100, 100)
```
+Results in:
+
+
+
+#### Scale with two floats
+
+```python
+scale(x, y)
+```
**Parameters**
-- x1: (float) The x-coordinate of the first point
-- y1: (float) The y-coordinate of the first point
-- x2: (float) The x-coordinate of the second point
-- y2: (float) The y-coordinate of the second point
+- x: (float) The amount to scale the width of the canvas.
+- y: (float) The amount to scale the height of the canvas.
**Example(s):**
-*Print the distance between (125, 125) and (375, 375)*
+*Scale canvas width by 0.75 and canvas height by 1.25*
-```python hl_lines="6"
+```python hl_lines="8"
%%ignite
def setup():
- print(dist(125, 125, 375, 375))
+ size(400, 400)
+ fill_style("red")
+
+ # apply scale of (0.75, 1.25), this will scale canvas units by factor of 0.75 horizontally and 1.25 vertically
+ scale(0.75, 1.25)
+ circle(100, 100, 100)
```
Results in:
-
\ No newline at end of file
+
diff --git a/spark/core.py b/spark/core.py
index 6438670..f4909d6 100644
--- a/spark/core.py
+++ b/spark/core.py
@@ -331,8 +331,14 @@ def clear(self, *args): pass
@extern
def background(self, *args): pass
+ @extern
+ def translate(self, *args): pass
+
@extern
def rotate(self, *args): pass
+
+ @extern
+ def scale(self, *args): pass
# From util.helper_functions.rect_functions
diff --git a/spark/util/helper_functions/canvas_functions.py b/spark/util/helper_functions/canvas_functions.py
index ceb6c17..ad7b15b 100644
--- a/spark/util/helper_functions/canvas_functions.py
+++ b/spark/util/helper_functions/canvas_functions.py
@@ -40,3 +40,13 @@ def helper_background(self, *args):
@ignite_global
def helper_rotate(self, *args):
self.canvas.rotate(args[0])
+
+@validate_args([Real, Real])
+@ignite_global
+def helper_translate(self, *args):
+ self.canvas.translate(args[0], args[1])
+
+@validate_args([Real], [Real, Real])
+@ignite_global
+def helper_scale(self, *args):
+ self.canvas.scale(*args)
diff --git a/test/ScaleTest.ipynb b/test/ScaleTest.ipynb
new file mode 100644
index 0000000..0121178
--- /dev/null
+++ b/test/ScaleTest.ipynb
@@ -0,0 +1,1751 @@
+{
+ "cells": [
+ {
+ "cell_type": "code",
+ "execution_count": 1,
+ "id": "intimate-crest",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "import spark\n",
+ "%reload_ext spark"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 30,
+ "id": "original-donna",
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "Done drawing.\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": [
+ "Done drawing."
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "application/vnd.jupyter.widget-view+json": {
+ "model_id": "36adef58bab442ceb9792fd10e871a30",
+ "version_major": 2,
+ "version_minor": 0
+ },
+ "text/plain": [
+ "Canvas(height=100, width=100)"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": []
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "%%ignite\n",
+ "def setup():\n",
+ " size(400, 400)\n",
+ " circle(100, 100, 100)\n",
+ " fill_style(\"red\")\n",
+ " \n",
+ " # apply scale of 1, should not change anything\n",
+ " scale(1)\n",
+ " circle(100, 100, 100)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 31,
+ "id": "temporal-caution",
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "Done drawing.\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": [
+ "Done drawing."
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "application/vnd.jupyter.widget-view+json": {
+ "model_id": "482847c670a44454a5d53c09d81c082b",
+ "version_major": 2,
+ "version_minor": 0
+ },
+ "text/plain": [
+ "Canvas(height=100, width=100)"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": []
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "%%ignite\n",
+ "def setup():\n",
+ " size(400, 400)\n",
+ " circle(100, 100, 100)\n",
+ " fill_style(\"red\")\n",
+ " \n",
+ " # apply scale of 2, this will scale canvas units by factor of 2 horizontally and vertically\n",
+ " scale(2)\n",
+ " circle(100, 100, 100)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 32,
+ "id": "rotary-insert",
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "Done drawing.\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": [
+ "Done drawing."
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "application/vnd.jupyter.widget-view+json": {
+ "model_id": "92ba410863a84bcab3483e90b7430cea",
+ "version_major": 2,
+ "version_minor": 0
+ },
+ "text/plain": [
+ "Canvas(height=100, width=100)"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": []
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "%%ignite\n",
+ "def setup():\n",
+ " size(400, 400)\n",
+ " circle(100, 100, 100)\n",
+ " fill_style(\"red\")\n",
+ " \n",
+ " # apply scale of 0.5, this will scale canvas units by factor of 0.5 horizontally and vertically\n",
+ " scale(0.5)\n",
+ " circle(100, 100, 100)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 33,
+ "id": "collectible-hacker",
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "Done drawing.\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": [
+ "Done drawing."
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "application/vnd.jupyter.widget-view+json": {
+ "model_id": "c6bfbc56c2ab44af9c9c35df77a95004",
+ "version_major": 2,
+ "version_minor": 0
+ },
+ "text/plain": [
+ "Canvas(height=100, width=100)"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": []
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "%%ignite\n",
+ "def setup():\n",
+ " size(400, 400)\n",
+ " circle(100, 100, 100)\n",
+ " fill_style(\"red\")\n",
+ " \n",
+ " # apply scale of (1, 3), this will scale canvas units by factor of 3 vertically\n",
+ " scale(1, 3)\n",
+ " circle(100, 100, 100)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 34,
+ "id": "covered-interest",
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "Done drawing.\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": [
+ "Done drawing."
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "application/vnd.jupyter.widget-view+json": {
+ "model_id": "7743615c75c944be8c29d0ff5a3c82e8",
+ "version_major": 2,
+ "version_minor": 0
+ },
+ "text/plain": [
+ "Canvas(height=100, width=100)"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": []
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "%%ignite\n",
+ "def setup():\n",
+ " size(400, 400)\n",
+ " circle(100, 100, 100)\n",
+ " fill_style(\"red\")\n",
+ " \n",
+ " # apply scale of (3, 1), this will scale canvas units by factor of 3 horizontally\n",
+ " scale(3, 1)\n",
+ " circle(100, 100, 100)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 35,
+ "id": "variable-waste",
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "Done drawing.\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": [
+ "Done drawing."
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "application/vnd.jupyter.widget-view+json": {
+ "model_id": "83cbb21bd81c482e90dc34e8da50f28d",
+ "version_major": 2,
+ "version_minor": 0
+ },
+ "text/plain": [
+ "Canvas(height=100, width=100)"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": []
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "%%ignite\n",
+ "def setup():\n",
+ " size(400, 400)\n",
+ " circle(100, 100, 100)\n",
+ " fill_style(\"red\")\n",
+ " \n",
+ " # apply scale of (0.75, 1.25), this will scale canvas units by factor of 0.75 horizontally and 1.25 vertically\n",
+ " scale(0.75, 1.25)\n",
+ " circle(100, 100, 100)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 8,
+ "id": "perfect-carry",
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "Done drawing.\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": [
+ "Done drawing."
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "application/vnd.jupyter.widget-view+json": {
+ "model_id": "0214b3ea53534ec895bd658b5661edfd",
+ "version_major": 2,
+ "version_minor": 0
+ },
+ "text/plain": [
+ "Canvas(height=100, width=100)"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": []
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "%%ignite\n",
+ "def setup():\n",
+ " size(400, 400)\n",
+ " circle(100, 100, 100)\n",
+ " fill_style(\"red\")\n",
+ " \n",
+ " # apply scale of (0, 1.25), meaning the red circle will have no width\n",
+ " scale(0, 1.25)\n",
+ " circle(100, 100, 100)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 19,
+ "id": "metropolitan-prophet",
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "Done drawing.\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": [
+ "Done drawing."
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "application/vnd.jupyter.widget-view+json": {
+ "model_id": "261976be66d64d97a30ca0884e3cc593",
+ "version_major": 2,
+ "version_minor": 0
+ },
+ "text/plain": [
+ "Canvas(height=100, width=100)"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": []
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "%%ignite\n",
+ "def setup():\n",
+ " size(400, 400)\n",
+ " fill_style(\"red\")\n",
+ " \n",
+ " # apply scale of (-0.75, 1.25)\n",
+ " scale(-0.75, 1.25)\n",
+ " \n",
+ " # translate to be able to see negative x value locations\n",
+ " translate(-200, 0)\n",
+ " \n",
+ " circle(100, 100, 100)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "id": "unsigned-record",
+ "metadata": {},
+ "outputs": [],
+ "source": []
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "Python 3",
+ "language": "python",
+ "name": "python3"
+ },
+ "language_info": {
+ "codemirror_mode": {
+ "name": "ipython",
+ "version": 3
+ },
+ "file_extension": ".py",
+ "mimetype": "text/x-python",
+ "name": "python",
+ "nbconvert_exporter": "python",
+ "pygments_lexer": "ipython3",
+ "version": "3.8.6"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/test/TranslateTest.ipynb b/test/TranslateTest.ipynb
new file mode 100644
index 0000000..986cded
--- /dev/null
+++ b/test/TranslateTest.ipynb
@@ -0,0 +1,1109 @@
+{
+ "cells": [
+ {
+ "cell_type": "code",
+ "execution_count": 2,
+ "id": "legendary-cyprus",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "import spark\n",
+ "%reload_ext spark"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 15,
+ "id": "invalid-banks",
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "Done drawing.\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": [
+ "Done drawing."
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "application/vnd.jupyter.widget-view+json": {
+ "model_id": "fea9cdb438cd449284a7a42f94771d9b",
+ "version_major": 2,
+ "version_minor": 0
+ },
+ "text/plain": [
+ "Canvas(height=100, width=100)"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": []
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "%%ignite\n",
+ "def setup():\n",
+ " size(400, 400)\n",
+ " circle(100, 100, 100)\n",
+ " fill_style(\"red\")\n",
+ " \n",
+ " # move canvas 50 units right, and 75 units down\n",
+ " translate(50, 75)\n",
+ " circle(100, 100, 100)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 3,
+ "id": "brown-shadow",
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n"
+ ],
+ "text/latex": [
+ "\\begin{Verbatim}[commandchars=\\\\\\{\\}]\n",
+ "Done drawing.\n",
+ "\\end{Verbatim}\n"
+ ],
+ "text/plain": [
+ "Done drawing."
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ },
+ {
+ "data": {
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