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adding the ASCII-quilt notebook for today

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manetta 4 years ago
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commit bef6ed78e1
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ASCII-quilt.ipynb
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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# ASCII Canvas"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"(using Reportlab to export it as a PDF)"
]
},
{
"cell_type": "code",
"execution_count": 1,
"metadata": {},
"outputs": [],
"source": [
"width = 75\n",
"height = 65"
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {
"scrolled": true
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\n",
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"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\n"
]
}
],
"source": [
"# Simple fill-up of a page, to set the reach of our canvas\n",
"lines = [] # All the lines will be stored here\n",
"\n",
"for linenumber in range(height):\n",
" line = 'x' * width\n",
" lines.append(line)\n",
"\n",
"print('\\n'.join(lines))"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": []
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": []
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Exporting with Reportlab"
]
},
{
"cell_type": "code",
"execution_count": 11,
"metadata": {},
"outputs": [],
"source": [
"from reportlab.pdfgen.canvas import Canvas\n",
"from reportlab.lib.pagesizes import A4\n",
"from reportlab.lib.units import mm\n",
"\n",
"pagewidth = 210*mm # = A4[0]\n",
"pageheight = 297*mm # = A4[1]\n",
"\n",
"# It is the same as:\n",
"# pagewidth, pageheight = A4\n",
"\n",
"c = Canvas(\"ASCII-canvas-to-PDF.pdf\", pagesize=(pagewidth, pageheight), bottomup=0) # the 'bottomup' flips the coordinates, and puts the 0,0 at the left top\n",
"c.setFont('Courier', 12)\n",
"\n",
"start_y = 10*mm # start position of the lines\n",
"\n",
"y = start_y\n",
"lineheight = 4*mm\n",
"\n",
"for line in lines:\n",
" c.drawCentredString(pagewidth/2, y, line)\n",
" y += lineheight\n",
"\n",
"c.save()"
]
},
{
"cell_type": "code",
"execution_count": null,
"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": "3.7.3"
}
},
"nbformat": 4,
"nbformat_minor": 4
}
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