From cebe078fb81777c584554cecf00bfda76fef0fe6 Mon Sep 17 00:00:00 2001
From: Michael Murtaugh <mm@automatist.org>
Date: Wed, 9 Sep 2020 16:31:40 +0200
Subject: [PATCH] reportlab grid

---
 reportlab_grid.ipynb | 194 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 194 insertions(+)
 create mode 100644 reportlab_grid.ipynb

diff --git a/reportlab_grid.ipynb b/reportlab_grid.ipynb
new file mode 100644
index 0000000..7089fbd
--- /dev/null
+++ b/reportlab_grid.ipynb
@@ -0,0 +1,194 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# ReportLab A0 Canvas\n",
+    "\n",
+    "Using loops and variables to create an A0 grid...\n",
+    "\n",
+    "<https://www.reportlab.com/docs/reportlab-userguide.pdf#page=10>\n",
+    "\n",
+    "[line](https://www.reportlab.com/docs/reportlab-userguide.pdf#page=13)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 37,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from reportlab.pdfgen.canvas import Canvas\n",
+    "from reportlab.lib.pagesizes import A4, A0\n",
+    "from reportlab.lib.units import inch, cm, mm\n",
+    "import sys\n",
+    "from reportlab.pdfbase.ttfonts import TTFont, pdfmetrics"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 38,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "c = Canvas(\"grid.pdf\", pagesize=A0)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 39,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "\u001b[0;31mSignature:\u001b[0m \u001b[0mc\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mline\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mx1\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0my1\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mx2\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0my2\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
+       "\u001b[0;31mDocstring:\u001b[0m\n",
+       "draw a line segment from (x1,y1) to (x2,y2) (with color, thickness and\n",
+       "other attributes determined by the current graphics state).\n",
+       "\u001b[0;31mFile:\u001b[0m      /usr/local/lib/python3.7/dist-packages/reportlab/pdfgen/canvas.py\n",
+       "\u001b[0;31mType:\u001b[0m      method\n"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "c.line?"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 40,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "\u001b[0;31mSignature:\u001b[0m \u001b[0mc\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0msetLineWidth\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mwidth\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
+       "\u001b[0;31mDocstring:\u001b[0m <no docstring>\n",
+       "\u001b[0;31mFile:\u001b[0m      /usr/local/lib/python3.7/dist-packages/reportlab/pdfgen/canvas.py\n",
+       "\u001b[0;31mType:\u001b[0m      method\n"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "c.setLineWidth?"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 41,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "c.line(0, 0, 100, 200)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 42,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "c.setLineWidth(3*mm)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 43,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "c.line(0, 0, 200, 100)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 44,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "(2383.937007874016, 3370.393700787402)\n",
+      "595.984251968504\n"
+     ]
+    }
+   ],
+   "source": [
+    "pagew, pageh = A0\n",
+    "colw = pagew/4\n",
+    "print (A0)\n",
+    "print (colw)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 45,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "for x in range(4):\n",
+    "    c.line(x*colw, 0, x*colw, pageh)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 46,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "842.5984251968505\n"
+     ]
+    }
+   ],
+   "source": [
+    "colh = pageh/4\n",
+    "print (colh)\n",
+    "for y in range(4):\n",
+    "    c.line(0, y*colh, pagew, y*colh)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 47,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "c.showPage()\n",
+    "c.save()"
+   ]
+  }
+ ],
+ "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": "3.7.3"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}